1 | /**************************************** |
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2 | * Computer Algebra System SINGULAR * |
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3 | ****************************************/ |
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4 | /* |
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5 | * ABSTRACT: |
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6 | */ |
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7 | #include "config.h" |
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8 | #include <kernel/mod2.h> |
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9 | #include <misc/auxiliary.h> |
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10 | |
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11 | |
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12 | #include <misc/options.h> |
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13 | #include <misc/mylimits.h> |
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14 | |
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15 | #ifdef HAVE_FACTORY |
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16 | #define SI_DONT_HAVE_GLOBAL_VARS |
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17 | #include <factory/factory.h> |
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18 | #endif |
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19 | |
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20 | #include <Singular/maps_ip.h> |
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21 | #include <Singular/tok.h> |
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22 | #include <misc/options.h> |
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23 | #include <Singular/ipid.h> |
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24 | #include <misc/intvec.h> |
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25 | #include <omalloc/omalloc.h> |
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26 | #include <kernel/febase.h> |
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27 | #include <kernel/polys.h> |
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28 | #include <coeffs/numbers.h> |
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29 | #include <polys/prCopy.h> |
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30 | #include <kernel/ideals.h> |
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31 | #include <polys/matpol.h> |
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32 | #include <kernel/kstd1.h> |
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33 | #include <polys/monomials/ring.h> |
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34 | #include <Singular/subexpr.h> |
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35 | #include <polys/monomials/maps.h> |
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36 | #include <kernel/syz.h> |
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37 | #include <coeffs/numbers.h> |
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38 | #include <kernel/modulop.h> |
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39 | //#include <polys/ext_fields/longalg.h> |
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40 | #include <Singular/lists.h> |
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41 | #include <Singular/attrib.h> |
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42 | #include <Singular/ipconv.h> |
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43 | #include <Singular/silink.h> |
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44 | #include <kernel/stairc.h> |
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45 | #include <polys/weight.h> |
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46 | #include <kernel/semic.h> |
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47 | #include <kernel/splist.h> |
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48 | #include <kernel/spectrum.h> |
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49 | ////// #include <coeffs/gnumpfl.h> |
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50 | //#include <kernel/mpr_base.h> |
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51 | ////// #include <coeffs/ffields.h> |
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52 | #include <polys/clapsing.h> |
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53 | #include <kernel/hutil.h> |
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54 | #include <polys/monomials/ring.h> |
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55 | #include <Singular/ipshell.h> |
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56 | #include <polys/ext_fields/algext.h> |
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57 | #include <coeffs/mpr_complex.h> |
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58 | #include <coeffs/longrat.h> |
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59 | #include <coeffs/rmodulon.h> |
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60 | |
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61 | #include <numeric/mpr_base.h> |
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62 | #include <numeric/mpr_numeric.h> |
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63 | |
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64 | #include <math.h> |
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65 | #include <ctype.h> |
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66 | |
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67 | #include <polys/ext_fields/algext.h> |
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68 | #include <polys/ext_fields/transext.h> |
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69 | |
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70 | // define this if you want to use the fast_map routine for mapping ideals |
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71 | #define FAST_MAP |
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72 | |
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73 | #ifdef FAST_MAP |
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74 | #include <kernel/fast_maps.h> |
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75 | #endif |
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76 | |
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77 | leftv iiCurrArgs=NULL; |
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78 | idhdl iiCurrProc=NULL; |
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79 | const char *lastreserved=NULL; |
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80 | |
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81 | static BOOLEAN iiNoKeepRing=TRUE; |
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82 | |
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83 | /*0 implementation*/ |
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84 | |
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85 | const char * iiTwoOps(int t) |
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86 | { |
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87 | if (t<127) |
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88 | { |
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89 | static char ch[2]; |
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90 | switch (t) |
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91 | { |
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92 | case '&': |
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93 | return "and"; |
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94 | case '|': |
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95 | return "or"; |
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96 | default: |
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97 | ch[0]=t; |
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98 | ch[1]='\0'; |
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99 | return ch; |
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100 | } |
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101 | } |
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102 | switch (t) |
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103 | { |
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104 | case COLONCOLON: return "::"; |
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105 | case DOTDOT: return ".."; |
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106 | //case PLUSEQUAL: return "+="; |
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107 | //case MINUSEQUAL: return "-="; |
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108 | case MINUSMINUS: return "--"; |
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109 | case PLUSPLUS: return "++"; |
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110 | case EQUAL_EQUAL: return "=="; |
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111 | case LE: return "<="; |
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112 | case GE: return ">="; |
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113 | case NOTEQUAL: return "<>"; |
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114 | default: return Tok2Cmdname(t); |
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115 | } |
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116 | } |
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117 | |
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118 | int iiOpsTwoChar(const char *s) |
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119 | { |
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120 | /* not handling: &&, ||, ** */ |
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121 | if (s[1]=='\0') return s[0]; |
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122 | else if (s[2]!='\0') return 0; |
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123 | switch(s[0]) |
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124 | { |
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125 | case '.': if (s[1]=='.') return DOTDOT; |
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126 | else return 0; |
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127 | case ':': if (s[1]==':') return COLONCOLON; |
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128 | else return 0; |
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129 | case '-': if (s[1]=='-') return COLONCOLON; |
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130 | else return 0; |
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131 | case '+': if (s[1]=='+') return PLUSPLUS; |
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132 | else return 0; |
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133 | case '=': if (s[1]=='=') return EQUAL_EQUAL; |
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134 | else return 0; |
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135 | case '<': if (s[1]=='=') return LE; |
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136 | else if (s[1]=='>') return NOTEQUAL; |
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137 | else return 0; |
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138 | case '>': if (s[1]=='=') return GE; |
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139 | else return 0; |
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140 | case '!': if (s[1]=='=') return NOTEQUAL; |
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141 | else return 0; |
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142 | } |
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143 | return 0; |
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144 | } |
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145 | |
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146 | static void list1(const char* s, idhdl h,BOOLEAN c, BOOLEAN fullname) |
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147 | { |
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148 | char buffer[22]; |
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149 | int l; |
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150 | char buf2[128]; |
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151 | |
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152 | if(fullname) sprintf(buf2, "%s::%s", "", IDID(h)); |
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153 | else sprintf(buf2, "%s", IDID(h)); |
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154 | |
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155 | Print("%s%-30.30s [%d] ",s,buf2,IDLEV(h)); |
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156 | if (h == currRingHdl) PrintS("*"); |
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157 | PrintS(Tok2Cmdname((int)IDTYP(h))); |
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158 | |
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159 | ipListFlag(h); |
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160 | switch(IDTYP(h)) |
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161 | { |
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162 | case INT_CMD: Print(" %d",IDINT(h)); break; |
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163 | case INTVEC_CMD:Print(" (%d)",IDINTVEC(h)->length()); break; |
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164 | case INTMAT_CMD:Print(" %d x %d",IDINTVEC(h)->rows(),IDINTVEC(h)->cols()); |
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165 | break; |
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166 | case POLY_CMD: |
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167 | case VECTOR_CMD:if (c) |
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168 | { |
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169 | PrintS(" ");wrp(IDPOLY(h)); |
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170 | if(IDPOLY(h) != NULL) |
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171 | { |
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172 | Print(", %d monomial(s)",pLength(IDPOLY(h))); |
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173 | } |
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174 | } |
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175 | break; |
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176 | case MODUL_CMD: Print(", rk %d", (int)(IDIDEAL(h)->rank)); |
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177 | case IDEAL_CMD: Print(", %u generator(s)", |
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178 | IDELEMS(IDIDEAL(h))); break; |
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179 | case MAP_CMD: |
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180 | Print(" from %s",IDMAP(h)->preimage); break; |
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181 | case MATRIX_CMD:Print(" %u x %u" |
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182 | ,MATROWS(IDMATRIX(h)) |
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183 | ,MATCOLS(IDMATRIX(h)) |
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184 | ); |
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185 | break; |
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186 | case PACKAGE_CMD: |
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187 | paPrint(IDID(h),IDPACKAGE(h)); |
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188 | break; |
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189 | case PROC_CMD: if((IDPROC(h)->libname!=NULL) |
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190 | && (strlen(IDPROC(h)->libname)>0)) |
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191 | Print(" from %s",IDPROC(h)->libname); |
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192 | if(IDPROC(h)->is_static) |
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193 | PrintS(" (static)"); |
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194 | break; |
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195 | case STRING_CMD: |
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196 | { |
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197 | char *s; |
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198 | l=strlen(IDSTRING(h)); |
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199 | memset(buffer,0,22); |
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200 | strncpy(buffer,IDSTRING(h),si_min(l,20)); |
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201 | if ((s=strchr(buffer,'\n'))!=NULL) |
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202 | { |
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203 | *s='\0'; |
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204 | } |
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205 | PrintS(" "); |
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206 | PrintS(buffer); |
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207 | if((s!=NULL) ||(l>20)) |
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208 | { |
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209 | Print("..., %d char(s)",l); |
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210 | } |
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211 | break; |
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212 | } |
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213 | case LIST_CMD: Print(", size: %d",IDLIST(h)->nr+1); |
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214 | break; |
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215 | case QRING_CMD: |
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216 | case RING_CMD: |
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217 | if ((IDRING(h)==currRing) && (currRingHdl!=h)) |
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218 | PrintS("(*)"); /* this is an alias to currRing */ |
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219 | #ifdef RDEBUG |
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220 | if (traceit &TRACE_SHOW_RINGS) |
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221 | Print(" <%lx>",(long)(IDRING(h))); |
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222 | #endif |
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223 | break; |
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224 | /*default: break;*/ |
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225 | } |
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226 | PrintLn(); |
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227 | } |
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228 | |
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229 | void type_cmd(leftv v) |
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230 | { |
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231 | BOOLEAN oldShortOut = FALSE; |
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232 | |
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233 | if (currRing != NULL) |
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234 | { |
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235 | oldShortOut = currRing->ShortOut; |
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236 | currRing->ShortOut = 1; |
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237 | } |
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238 | int t=v->Typ(); |
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239 | Print("// %s %s ",v->Name(),Tok2Cmdname(t)); |
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240 | switch (t) |
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241 | { |
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242 | case MAP_CMD:Print(" from %s\n",((map)(v->Data()))->preimage); break; |
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243 | case INTMAT_CMD: Print(" %d x %d\n",((intvec*)(v->Data()))->rows(), |
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244 | ((intvec*)(v->Data()))->cols()); break; |
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245 | case MATRIX_CMD:Print(" %u x %u\n" , |
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246 | MATROWS((matrix)(v->Data())), |
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247 | MATCOLS((matrix)(v->Data())));break; |
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248 | case MODUL_CMD: Print(", rk %d\n", (int)(((ideal)(v->Data()))->rank));break; |
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249 | case LIST_CMD: Print(", size %d\n",((lists)(v->Data()))->nr+1); break; |
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250 | |
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251 | case PROC_CMD: |
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252 | case RING_CMD: |
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253 | case IDEAL_CMD: |
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254 | case QRING_CMD: PrintLn(); break; |
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255 | |
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256 | //case INT_CMD: |
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257 | //case STRING_CMD: |
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258 | //case INTVEC_CMD: |
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259 | //case POLY_CMD: |
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260 | //case VECTOR_CMD: |
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261 | //case PACKAGE_CMD: |
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262 | |
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263 | default: |
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264 | break; |
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265 | } |
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266 | v->Print(); |
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267 | if (currRing != NULL) |
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268 | currRing->ShortOut = oldShortOut; |
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269 | } |
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270 | |
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271 | static void killlocals0(int v, idhdl * localhdl, const ring r) |
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272 | { |
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273 | idhdl h = *localhdl; |
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274 | while (h!=NULL) |
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275 | { |
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276 | int vv; |
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277 | //Print("consider %s, lev: %d:",IDID(h),IDLEV(h)); |
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278 | if ((vv=IDLEV(h))>0) |
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279 | { |
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280 | if (vv < v) |
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281 | { |
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282 | if (iiNoKeepRing) |
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283 | { |
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284 | //PrintS(" break\n"); |
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285 | return; |
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286 | } |
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287 | h = IDNEXT(h); |
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288 | //PrintLn(); |
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289 | } |
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290 | else //if (vv >= v) |
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291 | { |
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292 | idhdl nexth = IDNEXT(h); |
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293 | killhdl2(h,localhdl,r); |
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294 | h = nexth; |
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295 | //PrintS("kill\n"); |
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296 | } |
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297 | } |
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298 | else |
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299 | { |
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300 | h = IDNEXT(h); |
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301 | //PrintLn(); |
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302 | } |
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303 | } |
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304 | } |
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305 | void killlocals_list(lists l,int v) |
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306 | { |
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307 | int i; |
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308 | for(i=l->nr; i>=0; i--) |
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309 | { |
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310 | if (l->m[i].rtyp == LIST_CMD) |
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311 | killlocals_list((lists)l->m[i].data,v); |
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312 | else if ((l->m[i].rtyp == RING_CMD) || (l->m[i].rtyp == QRING_CMD)) |
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313 | killlocals0(v,&(((ring)(l->m[i].data))->idroot),currRing); |
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314 | } |
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315 | } |
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316 | void killlocals_rec(idhdl *root,int v, ring r) |
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317 | { |
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318 | idhdl h=*root; |
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319 | while (h!=NULL) |
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320 | { |
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321 | if (IDLEV(h)>=v) |
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322 | { |
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323 | // Print("kill %s, lev %d for lev %d\n",IDID(h),IDLEV(h),v); |
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324 | idhdl n=IDNEXT(h); |
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325 | killhdl2(h,root,r); |
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326 | h=n; |
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327 | } |
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328 | else if (IDTYP(h)==PACKAGE_CMD) |
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329 | { |
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330 | // Print("into pack %s, lev %d for lev %d\n",IDID(h),IDLEV(h),v); |
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331 | if (IDPACKAGE(h)!=basePack) |
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332 | killlocals_rec(&(IDRING(h)->idroot),v,r); |
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333 | h=IDNEXT(h); |
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334 | } |
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335 | else if ((IDTYP(h)==RING_CMD) |
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336 | ||(IDTYP(h)==QRING_CMD)) |
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337 | { |
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338 | if ((IDRING(h)!=NULL) && (IDRING(h)->idroot!=NULL)) |
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339 | // we have to test IDRING(h)!=NULL: qring Q=groebner(...): killlocals |
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340 | { |
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341 | // Print("into ring %s, lev %d for lev %d\n",IDID(h),IDLEV(h),v); |
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342 | killlocals_rec(&(IDRING(h)->idroot),v,IDRING(h)); |
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343 | } |
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344 | h=IDNEXT(h); |
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345 | } |
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346 | else |
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347 | { |
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348 | // Print("skip %s lev %d for lev %d\n",IDID(h),IDLEV(h),v); |
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349 | h=IDNEXT(h); |
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350 | } |
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351 | } |
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352 | } |
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353 | BOOLEAN killlocals_list(int v, lists L) |
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354 | { |
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355 | if (L==NULL) return FALSE; |
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356 | BOOLEAN changed=FALSE; |
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357 | int n=L->nr; |
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358 | for(;n>=0;n--) |
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359 | { |
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360 | leftv h=&(L->m[n]); |
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361 | void *d=h->data; |
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362 | if (((h->rtyp==RING_CMD) || (h->rtyp==QRING_CMD)) |
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363 | && (((ring)d)->idroot!=NULL)) |
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364 | { |
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365 | if (d!=currRing) {changed=TRUE;rChangeCurrRing((ring)d);} |
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366 | killlocals0(v,&(((ring)h->data)->idroot),(ring)h->data); |
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367 | } |
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368 | else if (h->rtyp==LIST_CMD) |
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369 | changed|=killlocals_list(v,(lists)d); |
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370 | } |
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371 | return changed; |
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372 | } |
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373 | void killlocals(int v) |
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374 | { |
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375 | BOOLEAN changed=FALSE; |
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376 | idhdl sh=currRingHdl; |
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377 | ring cr=currRing; |
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378 | if (sh!=NULL) changed=((IDLEV(sh)<v) || (IDRING(sh)->ref>0)); |
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379 | //if (changed) Print("currRing=%s(%x), lev=%d,ref=%d\n",IDID(sh),IDRING(sh),IDLEV(sh),IDRING(sh)->ref); |
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380 | |
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381 | killlocals_rec(&(basePack->idroot),v,currRing); |
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382 | |
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383 | if (iiRETURNEXPR_len > myynest) |
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384 | { |
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385 | int t=iiRETURNEXPR.Typ(); |
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386 | if ((/*iiRETURNEXPR.Typ()*/ t==RING_CMD) |
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387 | || (/*iiRETURNEXPR.Typ()*/ t==QRING_CMD)) |
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388 | { |
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389 | leftv h=&iiRETURNEXPR; |
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390 | if (((ring)h->data)->idroot!=NULL) |
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391 | killlocals0(v,&(((ring)h->data)->idroot),(ring)h->data); |
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392 | } |
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393 | else if (/*iiRETURNEXPR.Typ()*/ t==LIST_CMD) |
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394 | { |
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395 | leftv h=&iiRETURNEXPR; |
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396 | changed |=killlocals_list(v,(lists)h->data); |
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397 | } |
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398 | } |
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399 | if (changed) |
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400 | { |
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401 | currRingHdl=rFindHdl(cr,NULL,NULL); |
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402 | if (currRingHdl==NULL) |
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403 | currRing=NULL; |
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404 | else |
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405 | rChangeCurrRing(cr); |
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406 | } |
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407 | |
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408 | if (myynest<=1) iiNoKeepRing=TRUE; |
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409 | //Print("end killlocals >= %d\n",v); |
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410 | //listall(); |
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411 | } |
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412 | |
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413 | void list_cmd(int typ, const char* what, const char *prefix,BOOLEAN iterate, BOOLEAN fullname) |
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414 | { |
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415 | idhdl h,start; |
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416 | BOOLEAN all = typ<0; |
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417 | BOOLEAN really_all=FALSE; |
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418 | |
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419 | if ( typ==0 ) |
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420 | { |
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421 | if (strcmp(what,"all")==0) |
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422 | { |
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423 | really_all=TRUE; |
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424 | h=basePack->idroot; |
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425 | } |
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426 | else |
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427 | { |
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428 | h = ggetid(what); |
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429 | if (h!=NULL) |
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430 | { |
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431 | if (iterate) list1(prefix,h,TRUE,fullname); |
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432 | if (IDTYP(h)==ALIAS_CMD) PrintS("A"); |
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433 | if ((IDTYP(h)==RING_CMD) |
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434 | || (IDTYP(h)==QRING_CMD) |
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435 | //|| (IDTYP(h)==PACKE_CMD) |
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436 | ) |
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437 | { |
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438 | h=IDRING(h)->idroot; |
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439 | } |
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440 | else if((IDTYP(h)==PACKAGE_CMD) || (IDTYP(h)==POINTER_CMD)) |
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441 | { |
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442 | //Print("list_cmd:package or pointer\n"); |
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443 | all=TRUE;typ=PROC_CMD;fullname=TRUE;really_all=TRUE; |
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444 | h=IDPACKAGE(h)->idroot; |
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445 | } |
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446 | else |
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447 | return; |
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448 | } |
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449 | else |
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450 | { |
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451 | Werror("%s is undefined",what); |
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452 | return; |
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453 | } |
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454 | } |
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455 | all=TRUE; |
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456 | } |
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457 | else if (RingDependend(typ)) |
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458 | { |
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459 | h = currRing->idroot; |
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460 | } |
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461 | else |
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462 | h = IDROOT; |
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463 | start=h; |
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464 | while (h!=NULL) |
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465 | { |
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466 | if ((all && (IDTYP(h)!=PROC_CMD) &&(IDTYP(h)!=PACKAGE_CMD)) |
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467 | || (typ == IDTYP(h)) |
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468 | || ((IDTYP(h)==QRING_CMD) && (typ==RING_CMD))) |
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469 | { |
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470 | list1(prefix,h,start==currRingHdl, fullname); |
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471 | if (((IDTYP(h)==RING_CMD)||(IDTYP(h)==QRING_CMD)) |
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472 | && (really_all || (all && (h==currRingHdl))) |
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473 | && ((IDLEV(h)==0)||(IDLEV(h)==myynest))) |
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474 | { |
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475 | list_cmd(0,IDID(h),"// ",FALSE); |
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476 | } |
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477 | if (IDTYP(h)==PACKAGE_CMD && really_all) |
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478 | { |
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479 | package save_p=currPack; |
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480 | currPack=IDPACKAGE(h); |
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481 | list_cmd(0,IDID(h),"// ",FALSE); |
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482 | currPack=save_p; |
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483 | } |
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484 | } |
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485 | h = IDNEXT(h); |
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486 | } |
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487 | } |
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488 | |
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489 | void test_cmd(int i) |
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490 | { |
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491 | int ii; |
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492 | |
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493 | if (i<0) |
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494 | { |
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495 | ii= -i; |
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496 | if (ii < 32) |
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497 | { |
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498 | si_opt_1 &= ~Sy_bit(ii); |
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499 | } |
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500 | else if (ii < 64) |
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501 | { |
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502 | si_opt_2 &= ~Sy_bit(ii-32); |
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503 | } |
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504 | else |
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505 | WerrorS("out of bounds\n"); |
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506 | } |
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507 | else if (i<32) |
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508 | { |
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509 | ii=i; |
---|
510 | if (Sy_bit(ii) & kOptions) |
---|
511 | { |
---|
512 | Warn("Gerhard, use the option command"); |
---|
513 | si_opt_1 |= Sy_bit(ii); |
---|
514 | } |
---|
515 | else if (Sy_bit(ii) & validOpts) |
---|
516 | si_opt_1 |= Sy_bit(ii); |
---|
517 | } |
---|
518 | else if (i<64) |
---|
519 | { |
---|
520 | ii=i-32; |
---|
521 | si_opt_2 |= Sy_bit(ii); |
---|
522 | } |
---|
523 | else |
---|
524 | WerrorS("out of bounds\n"); |
---|
525 | } |
---|
526 | |
---|
527 | int exprlist_length(leftv v) |
---|
528 | { |
---|
529 | int rc = 0; |
---|
530 | while (v!=NULL) |
---|
531 | { |
---|
532 | switch (v->Typ()) |
---|
533 | { |
---|
534 | case INT_CMD: |
---|
535 | case POLY_CMD: |
---|
536 | case VECTOR_CMD: |
---|
537 | case NUMBER_CMD: |
---|
538 | rc++; |
---|
539 | break; |
---|
540 | case INTVEC_CMD: |
---|
541 | case INTMAT_CMD: |
---|
542 | rc += ((intvec *)(v->Data()))->length(); |
---|
543 | break; |
---|
544 | case MATRIX_CMD: |
---|
545 | case IDEAL_CMD: |
---|
546 | case MODUL_CMD: |
---|
547 | { |
---|
548 | matrix mm = (matrix)(v->Data()); |
---|
549 | rc += mm->rows() * mm->cols(); |
---|
550 | } |
---|
551 | break; |
---|
552 | case LIST_CMD: |
---|
553 | rc+=((lists)v->Data())->nr+1; |
---|
554 | break; |
---|
555 | default: |
---|
556 | rc++; |
---|
557 | } |
---|
558 | v = v->next; |
---|
559 | } |
---|
560 | return rc; |
---|
561 | } |
---|
562 | |
---|
563 | int iiIsPrime0(unsigned p) /* brute force !!!! */ |
---|
564 | { |
---|
565 | unsigned i,j=0 /*only to avoid compiler warnings*/; |
---|
566 | #ifdef HAVE_FACTORY |
---|
567 | if (p<=32749) // max. small prime in factory |
---|
568 | { |
---|
569 | int a=0; |
---|
570 | int e=cf_getNumSmallPrimes()-1; |
---|
571 | i=e/2; |
---|
572 | do |
---|
573 | { |
---|
574 | j=cf_getSmallPrime(i); |
---|
575 | if (p==j) return p; |
---|
576 | if (p<j) e=i-1; |
---|
577 | else a=i+1; |
---|
578 | i=a+(e-a)/2; |
---|
579 | } while ( a<= e); |
---|
580 | if (p>j) return j; |
---|
581 | else return cf_getSmallPrime(i-1); |
---|
582 | } |
---|
583 | #endif |
---|
584 | #ifdef HAVE_FACTORY |
---|
585 | unsigned end_i=cf_getNumSmallPrimes()-1; |
---|
586 | #else |
---|
587 | unsigned end_i=p/2; |
---|
588 | #endif |
---|
589 | unsigned end_p=(unsigned)sqrt((double)p); |
---|
590 | restart: |
---|
591 | for (i=0; i<end_i; i++) |
---|
592 | { |
---|
593 | #ifdef HAVE_FACTORY |
---|
594 | j=cf_getSmallPrime(i); |
---|
595 | #else |
---|
596 | if (i==0) j=2; |
---|
597 | else j=2*i-1; |
---|
598 | #endif |
---|
599 | if ((p%j) == 0) |
---|
600 | { |
---|
601 | #ifdef HAVE_FACTORY |
---|
602 | if (p<=32751) return iiIsPrime0(p-2); |
---|
603 | #endif |
---|
604 | p-=2; |
---|
605 | goto restart; |
---|
606 | } |
---|
607 | if (j > end_p) return p; |
---|
608 | } |
---|
609 | #ifdef HAVE_FACTORY |
---|
610 | if (i>=end_i) |
---|
611 | { |
---|
612 | while(j<=end_p) |
---|
613 | { |
---|
614 | j+=2; |
---|
615 | if ((p%j) == 0) |
---|
616 | { |
---|
617 | if (p<=32751) return iiIsPrime0(p-2); |
---|
618 | p-=2; |
---|
619 | goto restart; |
---|
620 | } |
---|
621 | } |
---|
622 | } |
---|
623 | #endif |
---|
624 | return p; |
---|
625 | } |
---|
626 | int IsPrime(int p) /* brute force !!!! */ |
---|
627 | { |
---|
628 | if (p == 0) return 0; |
---|
629 | else if (p == 1) return 1/*1*/; |
---|
630 | else if ((p == 2)||(p==3)) return p; |
---|
631 | else if (p < 0) return 2; //(iiIsPrime0((unsigned)(-p))); |
---|
632 | else if ((p & 1)==0) return iiIsPrime0((unsigned)(p-1)); |
---|
633 | return iiIsPrime0((unsigned)(p)); |
---|
634 | } |
---|
635 | |
---|
636 | BOOLEAN iiWRITE(leftv,leftv v) |
---|
637 | { |
---|
638 | sleftv vf; |
---|
639 | if (iiConvert(v->Typ(),LINK_CMD,iiTestConvert(v->Typ(),LINK_CMD),v,&vf)) |
---|
640 | { |
---|
641 | WerrorS("link expected"); |
---|
642 | return TRUE; |
---|
643 | } |
---|
644 | si_link l=(si_link)vf.Data(); |
---|
645 | if (vf.next == NULL) |
---|
646 | { |
---|
647 | WerrorS("write: need at least two arguments"); |
---|
648 | return TRUE; |
---|
649 | } |
---|
650 | |
---|
651 | BOOLEAN b=slWrite(l,vf.next); /* iiConvert preserves next */ |
---|
652 | if (b) |
---|
653 | { |
---|
654 | const char *s; |
---|
655 | if ((l!=NULL)&&(l->name!=NULL)) s=l->name; |
---|
656 | else s=sNoName; |
---|
657 | Werror("cannot write to %s",s); |
---|
658 | } |
---|
659 | vf.CleanUp(); |
---|
660 | return b; |
---|
661 | } |
---|
662 | |
---|
663 | leftv iiMap(map theMap, const char * what) |
---|
664 | { |
---|
665 | idhdl w,r; |
---|
666 | leftv v; |
---|
667 | int i; |
---|
668 | nMapFunc nMap; |
---|
669 | |
---|
670 | r=IDROOT->get(theMap->preimage,myynest); |
---|
671 | if ((currPack!=basePack) |
---|
672 | &&((r==NULL) || ((r->typ != RING_CMD) && (r->typ != QRING_CMD)))) |
---|
673 | r=basePack->idroot->get(theMap->preimage,myynest); |
---|
674 | if ((r==NULL) && (currRingHdl!=NULL) |
---|
675 | && (strcmp(theMap->preimage,IDID(currRingHdl))==0)) |
---|
676 | { |
---|
677 | r=currRingHdl; |
---|
678 | } |
---|
679 | if ((r!=NULL) && ((r->typ == RING_CMD) || (r->typ== QRING_CMD))) |
---|
680 | { |
---|
681 | //if ((nMap=nSetMap(rInternalChar(IDRING(r)), |
---|
682 | // IDRING(r)->parameter, |
---|
683 | // rPar(IDRING(r)), |
---|
684 | // IDRING(r)->minpoly))) |
---|
685 | if ((nMap=n_SetMap(IDRING(r)->cf, currRing->cf))==NULL) |
---|
686 | { |
---|
687 | ////////// WTF? |
---|
688 | // if (rEqual(IDRING(r),currRing)) |
---|
689 | // { |
---|
690 | // nMap = n_SetMap(currRing->cf, currRing->cf); |
---|
691 | // } |
---|
692 | // else |
---|
693 | // { |
---|
694 | Werror("can not map from ground field of %s to current ground field", |
---|
695 | theMap->preimage); |
---|
696 | return NULL; |
---|
697 | // } |
---|
698 | } |
---|
699 | if (IDELEMS(theMap)<IDRING(r)->N) |
---|
700 | { |
---|
701 | theMap->m=(polyset)omReallocSize((ADDRESS)theMap->m, |
---|
702 | IDELEMS(theMap)*sizeof(poly), |
---|
703 | (IDRING(r)->N)*sizeof(poly)); |
---|
704 | for(i=IDELEMS(theMap);i<IDRING(r)->N;i++) |
---|
705 | theMap->m[i]=NULL; |
---|
706 | IDELEMS(theMap)=IDRING(r)->N; |
---|
707 | } |
---|
708 | if (what==NULL) |
---|
709 | { |
---|
710 | WerrorS("argument of a map must have a name"); |
---|
711 | } |
---|
712 | else if ((w=IDRING(r)->idroot->get(what,myynest))!=NULL) |
---|
713 | { |
---|
714 | char *save_r=NULL; |
---|
715 | v=(leftv)omAlloc0Bin(sleftv_bin); |
---|
716 | sleftv tmpW; |
---|
717 | memset(&tmpW,0,sizeof(sleftv)); |
---|
718 | tmpW.rtyp=IDTYP(w); |
---|
719 | if (tmpW.rtyp==MAP_CMD) |
---|
720 | { |
---|
721 | tmpW.rtyp=IDEAL_CMD; |
---|
722 | save_r=IDMAP(w)->preimage; |
---|
723 | IDMAP(w)->preimage=0; |
---|
724 | } |
---|
725 | tmpW.data=IDDATA(w); |
---|
726 | #if 0 |
---|
727 | if (((tmpW.rtyp==IDEAL_CMD)||(tmpW.rtyp==MODUL_CMD)) && idIs0(IDIDEAL(w))) |
---|
728 | { |
---|
729 | v->rtyp=tmpW.rtyp; |
---|
730 | v->data=idInit(IDELEMS(IDIDEAL(w)),IDIDEAL(w)->rank); |
---|
731 | } |
---|
732 | else |
---|
733 | #endif |
---|
734 | { |
---|
735 | #ifdef FAST_MAP |
---|
736 | if ((tmpW.rtyp==IDEAL_CMD) && (nMap == ndCopyMap) |
---|
737 | #ifdef HAVE_PLURAL |
---|
738 | && (!rIsPluralRing(currRing)) |
---|
739 | #endif |
---|
740 | ) |
---|
741 | { |
---|
742 | v->rtyp=IDEAL_CMD; |
---|
743 | v->data=fast_map(IDIDEAL(w), IDRING(r), (ideal)theMap, currRing); |
---|
744 | } |
---|
745 | else |
---|
746 | #endif |
---|
747 | if (maApplyFetch(MAP_CMD,theMap,v,&tmpW,IDRING(r),NULL,NULL,0,nMap)) |
---|
748 | { |
---|
749 | Werror("cannot map %s(%d)",Tok2Cmdname(w->typ),w->typ); |
---|
750 | omFreeBin((ADDRESS)v, sleftv_bin); |
---|
751 | if (save_r!=NULL) IDMAP(w)->preimage=save_r; |
---|
752 | return NULL; |
---|
753 | } |
---|
754 | } |
---|
755 | if (save_r!=NULL) |
---|
756 | { |
---|
757 | IDMAP(w)->preimage=save_r; |
---|
758 | IDMAP((idhdl)v)->preimage=omStrDup(save_r); |
---|
759 | v->rtyp=MAP_CMD; |
---|
760 | } |
---|
761 | return v; |
---|
762 | } |
---|
763 | else |
---|
764 | { |
---|
765 | Werror("%s undefined in %s",what,theMap->preimage); |
---|
766 | } |
---|
767 | } |
---|
768 | else |
---|
769 | { |
---|
770 | Werror("cannot find preimage %s",theMap->preimage); |
---|
771 | } |
---|
772 | return NULL; |
---|
773 | } |
---|
774 | |
---|
775 | #ifdef OLD_RES |
---|
776 | void iiMakeResolv(resolvente r, int length, int rlen, char * name, int typ0, |
---|
777 | intvec ** weights) |
---|
778 | { |
---|
779 | lists L=liMakeResolv(r,length,rlen,typ0,weights); |
---|
780 | int i=0; |
---|
781 | idhdl h; |
---|
782 | char * s=(char *)omAlloc(strlen(name)+5); |
---|
783 | |
---|
784 | while (i<=L->nr) |
---|
785 | { |
---|
786 | sprintf(s,"%s(%d)",name,i+1); |
---|
787 | if (i==0) |
---|
788 | h=enterid(s,myynest,typ0,&(currRing->idroot), FALSE); |
---|
789 | else |
---|
790 | h=enterid(s,myynest,MODUL_CMD,&(currRing->idroot), FALSE); |
---|
791 | if (h!=NULL) |
---|
792 | { |
---|
793 | h->data.uideal=(ideal)L->m[i].data; |
---|
794 | h->attribute=L->m[i].attribute; |
---|
795 | if (BVERBOSE(V_DEF_RES)) |
---|
796 | Print("//defining: %s as %d-th syzygy module\n",s,i+1); |
---|
797 | } |
---|
798 | else |
---|
799 | { |
---|
800 | idDelete((ideal *)&(L->m[i].data)); |
---|
801 | Warn("cannot define %s",s); |
---|
802 | } |
---|
803 | //L->m[i].data=NULL; |
---|
804 | //L->m[i].rtyp=0; |
---|
805 | //L->m[i].attribute=NULL; |
---|
806 | i++; |
---|
807 | } |
---|
808 | omFreeSize((ADDRESS)L->m,(L->nr+1)*sizeof(sleftv)); |
---|
809 | omFreeBin((ADDRESS)L, slists_bin); |
---|
810 | omFreeSize((ADDRESS)s,strlen(name)+5); |
---|
811 | } |
---|
812 | #endif |
---|
813 | |
---|
814 | //resolvente iiFindRes(char * name, int * len, int *typ0) |
---|
815 | //{ |
---|
816 | // char *s=(char *)omAlloc(strlen(name)+5); |
---|
817 | // int i=-1; |
---|
818 | // resolvente r; |
---|
819 | // idhdl h; |
---|
820 | // |
---|
821 | // do |
---|
822 | // { |
---|
823 | // i++; |
---|
824 | // sprintf(s,"%s(%d)",name,i+1); |
---|
825 | // h=currRing->idroot->get(s,myynest); |
---|
826 | // } while (h!=NULL); |
---|
827 | // *len=i-1; |
---|
828 | // if (*len<=0) |
---|
829 | // { |
---|
830 | // Werror("no objects %s(1),.. found",name); |
---|
831 | // omFreeSize((ADDRESS)s,strlen(name)+5); |
---|
832 | // return NULL; |
---|
833 | // } |
---|
834 | // r=(ideal *)omAlloc(/*(len+1)*/ i*sizeof(ideal)); |
---|
835 | // memset(r,0,(*len)*sizeof(ideal)); |
---|
836 | // i=-1; |
---|
837 | // *typ0=MODUL_CMD; |
---|
838 | // while (i<(*len)) |
---|
839 | // { |
---|
840 | // i++; |
---|
841 | // sprintf(s,"%s(%d)",name,i+1); |
---|
842 | // h=currRing->idroot->get(s,myynest); |
---|
843 | // if (h->typ != MODUL_CMD) |
---|
844 | // { |
---|
845 | // if ((i!=0) || (h->typ!=IDEAL_CMD)) |
---|
846 | // { |
---|
847 | // Werror("%s is not of type module",s); |
---|
848 | // omFreeSize((ADDRESS)r,(*len)*sizeof(ideal)); |
---|
849 | // omFreeSize((ADDRESS)s,strlen(name)+5); |
---|
850 | // return NULL; |
---|
851 | // } |
---|
852 | // *typ0=IDEAL_CMD; |
---|
853 | // } |
---|
854 | // if ((i>0) && (idIs0(r[i-1]))) |
---|
855 | // { |
---|
856 | // *len=i-1; |
---|
857 | // break; |
---|
858 | // } |
---|
859 | // r[i]=IDIDEAL(h); |
---|
860 | // } |
---|
861 | // omFreeSize((ADDRESS)s,strlen(name)+5); |
---|
862 | // return r; |
---|
863 | //} |
---|
864 | |
---|
865 | static resolvente iiCopyRes(resolvente r, int l) |
---|
866 | { |
---|
867 | int i; |
---|
868 | resolvente res=(ideal *)omAlloc0((l+1)*sizeof(ideal)); |
---|
869 | |
---|
870 | for (i=0; i<l; i++) |
---|
871 | res[i]=idCopy(r[i]); |
---|
872 | return res; |
---|
873 | } |
---|
874 | |
---|
875 | BOOLEAN jjMINRES(leftv res, leftv v) |
---|
876 | { |
---|
877 | int len=0; |
---|
878 | int typ0; |
---|
879 | lists L=(lists)v->Data(); |
---|
880 | intvec *weights=(intvec*)atGet(v,"isHomog",INTVEC_CMD); |
---|
881 | int add_row_shift = 0; |
---|
882 | if (weights==NULL) |
---|
883 | weights=(intvec*)atGet(&(L->m[0]),"isHomog",INTVEC_CMD); |
---|
884 | if (weights!=NULL) add_row_shift=weights->min_in(); |
---|
885 | resolvente rr=liFindRes(L,&len,&typ0); |
---|
886 | if (rr==NULL) return TRUE; |
---|
887 | resolvente r=iiCopyRes(rr,len); |
---|
888 | |
---|
889 | syMinimizeResolvente(r,len,0); |
---|
890 | omFreeSize((ADDRESS)rr,len*sizeof(ideal)); |
---|
891 | len++; |
---|
892 | res->data=(char *)liMakeResolv(r,len,-1,typ0,NULL,add_row_shift); |
---|
893 | return FALSE; |
---|
894 | } |
---|
895 | |
---|
896 | BOOLEAN jjBETTI(leftv res, leftv u) |
---|
897 | { |
---|
898 | sleftv tmp; |
---|
899 | memset(&tmp,0,sizeof(tmp)); |
---|
900 | tmp.rtyp=INT_CMD; |
---|
901 | tmp.data=(void *)1; |
---|
902 | if ((u->Typ()==IDEAL_CMD) |
---|
903 | || (u->Typ()==MODUL_CMD)) |
---|
904 | return jjBETTI2_ID(res,u,&tmp); |
---|
905 | else |
---|
906 | return jjBETTI2(res,u,&tmp); |
---|
907 | } |
---|
908 | |
---|
909 | BOOLEAN jjBETTI2_ID(leftv res, leftv u, leftv v) |
---|
910 | { |
---|
911 | lists l=(lists) omAllocBin(slists_bin); |
---|
912 | l->Init(1); |
---|
913 | l->m[0].rtyp=u->Typ(); |
---|
914 | l->m[0].data=u->Data(); |
---|
915 | attr *a=u->Attribute(); |
---|
916 | if (a!=NULL) |
---|
917 | l->m[0].attribute=*a; |
---|
918 | sleftv tmp2; |
---|
919 | memset(&tmp2,0,sizeof(tmp2)); |
---|
920 | tmp2.rtyp=LIST_CMD; |
---|
921 | tmp2.data=(void *)l; |
---|
922 | BOOLEAN r=jjBETTI2(res,&tmp2,v); |
---|
923 | l->m[0].data=NULL; |
---|
924 | l->m[0].attribute=NULL; |
---|
925 | l->m[0].rtyp=DEF_CMD; |
---|
926 | l->Clean(); |
---|
927 | return r; |
---|
928 | } |
---|
929 | |
---|
930 | BOOLEAN jjBETTI2(leftv res, leftv u, leftv v) |
---|
931 | { |
---|
932 | resolvente r; |
---|
933 | int len; |
---|
934 | int reg,typ0; |
---|
935 | lists l=(lists)u->Data(); |
---|
936 | |
---|
937 | intvec *weights=NULL; |
---|
938 | int add_row_shift=0; |
---|
939 | intvec *ww=(intvec *)atGet(&(l->m[0]),"isHomog",INTVEC_CMD); |
---|
940 | if (ww!=NULL) |
---|
941 | { |
---|
942 | weights=ivCopy(ww); |
---|
943 | add_row_shift = ww->min_in(); |
---|
944 | (*weights) -= add_row_shift; |
---|
945 | } |
---|
946 | //Print("attr:%x\n",weights); |
---|
947 | |
---|
948 | r=liFindRes(l,&len,&typ0); |
---|
949 | if (r==NULL) return TRUE; |
---|
950 | res->data=(char *)syBetti(r,len,®,weights,(int)(long)v->Data()); |
---|
951 | omFreeSize((ADDRESS)r,(len)*sizeof(ideal)); |
---|
952 | atSet(res,omStrDup("rowShift"),(void*)add_row_shift,INT_CMD); |
---|
953 | if (weights!=NULL) delete weights; |
---|
954 | return FALSE; |
---|
955 | } |
---|
956 | |
---|
957 | int iiRegularity(lists L) |
---|
958 | { |
---|
959 | int len,reg,typ0; |
---|
960 | |
---|
961 | resolvente r=liFindRes(L,&len,&typ0); |
---|
962 | |
---|
963 | if (r==NULL) |
---|
964 | return -2; |
---|
965 | intvec *weights=NULL; |
---|
966 | int add_row_shift=0; |
---|
967 | intvec *ww=(intvec *)atGet(&(L->m[0]),"isHomog",INTVEC_CMD); |
---|
968 | if (ww!=NULL) |
---|
969 | { |
---|
970 | weights=ivCopy(ww); |
---|
971 | add_row_shift = ww->min_in(); |
---|
972 | (*weights) -= add_row_shift; |
---|
973 | } |
---|
974 | //Print("attr:%x\n",weights); |
---|
975 | |
---|
976 | intvec *dummy=syBetti(r,len,®,weights); |
---|
977 | if (weights!=NULL) delete weights; |
---|
978 | delete dummy; |
---|
979 | omFreeSize((ADDRESS)r,len*sizeof(ideal)); |
---|
980 | return reg+1+add_row_shift; |
---|
981 | } |
---|
982 | |
---|
983 | BOOLEAN iiDebugMarker=TRUE; |
---|
984 | #define BREAK_LINE_LENGTH 80 |
---|
985 | void iiDebug() |
---|
986 | { |
---|
987 | Print("\n-- break point in %s --\n",VoiceName()); |
---|
988 | if (iiDebugMarker) VoiceBackTrack(); |
---|
989 | char * s; |
---|
990 | iiDebugMarker=FALSE; |
---|
991 | s = (char *)omAlloc(BREAK_LINE_LENGTH+4); |
---|
992 | loop |
---|
993 | { |
---|
994 | memset(s,0,80); |
---|
995 | fe_fgets_stdin("",s,BREAK_LINE_LENGTH); |
---|
996 | if (s[BREAK_LINE_LENGTH-1]!='\0') |
---|
997 | { |
---|
998 | Print("line too long, max is %d chars\n",BREAK_LINE_LENGTH); |
---|
999 | } |
---|
1000 | else |
---|
1001 | break; |
---|
1002 | } |
---|
1003 | if (*s=='\n') |
---|
1004 | { |
---|
1005 | iiDebugMarker=TRUE; |
---|
1006 | } |
---|
1007 | #if MDEBUG |
---|
1008 | else if(strncmp(s,"cont;",5)==0) |
---|
1009 | { |
---|
1010 | iiDebugMarker=TRUE; |
---|
1011 | } |
---|
1012 | #endif /* MDEBUG */ |
---|
1013 | else |
---|
1014 | { |
---|
1015 | strcat( s, "\n;~\n"); |
---|
1016 | newBuffer(s,BT_execute); |
---|
1017 | } |
---|
1018 | } |
---|
1019 | |
---|
1020 | lists scIndIndset(ideal S, BOOLEAN all, ideal Q) |
---|
1021 | { |
---|
1022 | int i; |
---|
1023 | indset save; |
---|
1024 | lists res=(lists)omAlloc0Bin(slists_bin); |
---|
1025 | |
---|
1026 | hexist = hInit(S, Q, &hNexist); |
---|
1027 | if (hNexist == 0) |
---|
1028 | { |
---|
1029 | intvec *iv=new intvec(rVar(currRing)); |
---|
1030 | for(i=0; i<rVar(currRing); i++) (*iv)[i]=1; |
---|
1031 | res->Init(1); |
---|
1032 | res->m[0].rtyp=INTVEC_CMD; |
---|
1033 | res->m[0].data=(intvec*)iv; |
---|
1034 | return res; |
---|
1035 | } |
---|
1036 | else if (hisModule!=0) |
---|
1037 | { |
---|
1038 | res->Init(0); |
---|
1039 | return res; |
---|
1040 | } |
---|
1041 | save = ISet = (indset)omAlloc0Bin(indlist_bin); |
---|
1042 | hMu = 0; |
---|
1043 | hwork = (scfmon)omAlloc(hNexist * sizeof(scmon)); |
---|
1044 | hvar = (varset)omAlloc((rVar(currRing) + 1) * sizeof(int)); |
---|
1045 | hpure = (scmon)omAlloc((1 + (rVar(currRing) * rVar(currRing))) * sizeof(long)); |
---|
1046 | hrad = hexist; |
---|
1047 | hNrad = hNexist; |
---|
1048 | radmem = hCreate(rVar(currRing) - 1); |
---|
1049 | hCo = rVar(currRing) + 1; |
---|
1050 | hNvar = rVar(currRing); |
---|
1051 | hRadical(hrad, &hNrad, hNvar); |
---|
1052 | hSupp(hrad, hNrad, hvar, &hNvar); |
---|
1053 | if (hNvar) |
---|
1054 | { |
---|
1055 | hCo = hNvar; |
---|
1056 | memset(hpure, 0, (rVar(currRing) + 1) * sizeof(long)); |
---|
1057 | hPure(hrad, 0, &hNrad, hvar, hNvar, hpure, &hNpure); |
---|
1058 | hLexR(hrad, hNrad, hvar, hNvar); |
---|
1059 | hDimSolve(hpure, hNpure, hrad, hNrad, hvar, hNvar); |
---|
1060 | } |
---|
1061 | if (hCo && (hCo < rVar(currRing))) |
---|
1062 | { |
---|
1063 | hIndMult(hpure, hNpure, hrad, hNrad, hvar, hNvar); |
---|
1064 | } |
---|
1065 | if (hMu!=0) |
---|
1066 | { |
---|
1067 | ISet = save; |
---|
1068 | hMu2 = 0; |
---|
1069 | if (all && (hCo+1 < rVar(currRing))) |
---|
1070 | { |
---|
1071 | JSet = (indset)omAlloc0Bin(indlist_bin); |
---|
1072 | hIndAllMult(hpure, hNpure, hrad, hNrad, hvar, hNvar); |
---|
1073 | i=hMu+hMu2; |
---|
1074 | res->Init(i); |
---|
1075 | if (hMu2 == 0) |
---|
1076 | { |
---|
1077 | omFreeBin((ADDRESS)JSet, indlist_bin); |
---|
1078 | } |
---|
1079 | } |
---|
1080 | else |
---|
1081 | { |
---|
1082 | res->Init(hMu); |
---|
1083 | } |
---|
1084 | for (i=0;i<hMu;i++) |
---|
1085 | { |
---|
1086 | res->m[i].data = (void *)save->set; |
---|
1087 | res->m[i].rtyp = INTVEC_CMD; |
---|
1088 | ISet = save; |
---|
1089 | save = save->nx; |
---|
1090 | omFreeBin((ADDRESS)ISet, indlist_bin); |
---|
1091 | } |
---|
1092 | omFreeBin((ADDRESS)save, indlist_bin); |
---|
1093 | if (hMu2 != 0) |
---|
1094 | { |
---|
1095 | save = JSet; |
---|
1096 | for (i=hMu;i<hMu+hMu2;i++) |
---|
1097 | { |
---|
1098 | res->m[i].data = (void *)save->set; |
---|
1099 | res->m[i].rtyp = INTVEC_CMD; |
---|
1100 | JSet = save; |
---|
1101 | save = save->nx; |
---|
1102 | omFreeBin((ADDRESS)JSet, indlist_bin); |
---|
1103 | } |
---|
1104 | omFreeBin((ADDRESS)save, indlist_bin); |
---|
1105 | } |
---|
1106 | } |
---|
1107 | else |
---|
1108 | { |
---|
1109 | res->Init(0); |
---|
1110 | omFreeBin((ADDRESS)ISet, indlist_bin); |
---|
1111 | } |
---|
1112 | hKill(radmem, rVar(currRing) - 1); |
---|
1113 | omFreeSize((ADDRESS)hpure, (1 + (rVar(currRing) * rVar(currRing))) * sizeof(long)); |
---|
1114 | omFreeSize((ADDRESS)hvar, (rVar(currRing) + 1) * sizeof(int)); |
---|
1115 | omFreeSize((ADDRESS)hwork, hNexist * sizeof(scmon)); |
---|
1116 | hDelete(hexist, hNexist); |
---|
1117 | return res; |
---|
1118 | } |
---|
1119 | |
---|
1120 | int iiDeclCommand(leftv sy, leftv name, int lev,int t, idhdl* root,BOOLEAN isring, BOOLEAN init_b) |
---|
1121 | { |
---|
1122 | BOOLEAN res=FALSE; |
---|
1123 | const char *id = name->name; |
---|
1124 | |
---|
1125 | memset(sy,0,sizeof(sleftv)); |
---|
1126 | if ((name->name==NULL)||(isdigit(name->name[0]))) |
---|
1127 | { |
---|
1128 | WerrorS("object to declare is not a name"); |
---|
1129 | res=TRUE; |
---|
1130 | } |
---|
1131 | else |
---|
1132 | { |
---|
1133 | //if (name->rtyp!=0) |
---|
1134 | //{ |
---|
1135 | // Warn("`%s` is already in use",name->name); |
---|
1136 | //} |
---|
1137 | { |
---|
1138 | sy->data = (char *)enterid(id,lev,t,root,init_b); |
---|
1139 | } |
---|
1140 | if (sy->data!=NULL) |
---|
1141 | { |
---|
1142 | sy->rtyp=IDHDL; |
---|
1143 | currid=sy->name=IDID((idhdl)sy->data); |
---|
1144 | // name->name=NULL; /* used in enterid */ |
---|
1145 | //sy->e = NULL; |
---|
1146 | if (name->next!=NULL) |
---|
1147 | { |
---|
1148 | sy->next=(leftv)omAllocBin(sleftv_bin); |
---|
1149 | res=iiDeclCommand(sy->next,name->next,lev,t,root, isring); |
---|
1150 | } |
---|
1151 | } |
---|
1152 | else res=TRUE; |
---|
1153 | } |
---|
1154 | name->CleanUp(); |
---|
1155 | return res; |
---|
1156 | } |
---|
1157 | |
---|
1158 | BOOLEAN iiDefaultParameter(leftv p) |
---|
1159 | { |
---|
1160 | attr at=NULL; |
---|
1161 | if (iiCurrProc!=NULL) |
---|
1162 | at=iiCurrProc->attribute->get("default_arg"); |
---|
1163 | if (at==NULL) |
---|
1164 | return FALSE; |
---|
1165 | sleftv tmp; |
---|
1166 | memset(&tmp,0,sizeof(sleftv)); |
---|
1167 | tmp.rtyp=at->atyp; |
---|
1168 | tmp.data=at->CopyA(); |
---|
1169 | return iiAssign(p,&tmp); |
---|
1170 | } |
---|
1171 | BOOLEAN iiParameter(leftv p) |
---|
1172 | { |
---|
1173 | if (iiCurrArgs==NULL) |
---|
1174 | { |
---|
1175 | if (strcmp(p->name,"#")==0) |
---|
1176 | return iiDefaultParameter(p); |
---|
1177 | Werror("not enough arguments for proc %s",VoiceName()); |
---|
1178 | p->CleanUp(); |
---|
1179 | return TRUE; |
---|
1180 | } |
---|
1181 | leftv h=iiCurrArgs; |
---|
1182 | if (strcmp(p->name,"#")==0) |
---|
1183 | { |
---|
1184 | iiCurrArgs=NULL; |
---|
1185 | } |
---|
1186 | else |
---|
1187 | { |
---|
1188 | iiCurrArgs=h->next; |
---|
1189 | h->next=NULL; |
---|
1190 | } |
---|
1191 | BOOLEAN res=iiAssign(p,h); |
---|
1192 | h->CleanUp(); |
---|
1193 | omFreeBin((ADDRESS)h, sleftv_bin); |
---|
1194 | return res; |
---|
1195 | } |
---|
1196 | BOOLEAN iiAlias(leftv p) |
---|
1197 | { |
---|
1198 | if (iiCurrArgs==NULL) |
---|
1199 | { |
---|
1200 | Werror("not enough arguments for proc %s",VoiceName()); |
---|
1201 | p->CleanUp(); |
---|
1202 | return TRUE; |
---|
1203 | } |
---|
1204 | leftv h=iiCurrArgs; |
---|
1205 | iiCurrArgs=h->next; |
---|
1206 | h->next=NULL; |
---|
1207 | if (h->rtyp!=IDHDL) |
---|
1208 | { |
---|
1209 | BOOLEAN res=iiAssign(p,h); |
---|
1210 | h->CleanUp(); |
---|
1211 | omFreeBin((ADDRESS)h, sleftv_bin); |
---|
1212 | return res; |
---|
1213 | } |
---|
1214 | if (h->Typ()!=p->Typ()) |
---|
1215 | { |
---|
1216 | WerrorS("type mismatch"); |
---|
1217 | return TRUE; |
---|
1218 | } |
---|
1219 | idhdl pp=(idhdl)p->data; |
---|
1220 | switch(pp->typ) |
---|
1221 | { |
---|
1222 | case INT_CMD: |
---|
1223 | break; |
---|
1224 | case INTVEC_CMD: |
---|
1225 | case INTMAT_CMD: |
---|
1226 | delete IDINTVEC(pp); |
---|
1227 | break; |
---|
1228 | case NUMBER_CMD: |
---|
1229 | nDelete(&IDNUMBER(pp)); |
---|
1230 | break; |
---|
1231 | case BIGINT_CMD: |
---|
1232 | n_Delete(&IDNUMBER(pp),currRing->cf); |
---|
1233 | break; |
---|
1234 | case MAP_CMD: |
---|
1235 | { |
---|
1236 | map im = IDMAP(pp); |
---|
1237 | omFree((ADDRESS)im->preimage); |
---|
1238 | } |
---|
1239 | // continue as ideal: |
---|
1240 | case IDEAL_CMD: |
---|
1241 | case MODUL_CMD: |
---|
1242 | case MATRIX_CMD: |
---|
1243 | idDelete(&IDIDEAL(pp)); |
---|
1244 | break; |
---|
1245 | case PROC_CMD: |
---|
1246 | case RESOLUTION_CMD: |
---|
1247 | case STRING_CMD: |
---|
1248 | omFree((ADDRESS)IDSTRING(pp)); |
---|
1249 | break; |
---|
1250 | case LIST_CMD: |
---|
1251 | IDLIST(pp)->Clean(); |
---|
1252 | break; |
---|
1253 | case LINK_CMD: |
---|
1254 | omFreeBin(IDLINK(pp),sip_link_bin); |
---|
1255 | break; |
---|
1256 | // case ring: cannot happen |
---|
1257 | default: |
---|
1258 | Werror("unknown type %d",p->Typ()); |
---|
1259 | return TRUE; |
---|
1260 | } |
---|
1261 | pp->typ=ALIAS_CMD; |
---|
1262 | IDDATA(pp)=(char*)h->data; |
---|
1263 | h->CleanUp(); |
---|
1264 | omFreeBin((ADDRESS)h, sleftv_bin); |
---|
1265 | return FALSE; |
---|
1266 | } |
---|
1267 | |
---|
1268 | static BOOLEAN iiInternalExport (leftv v, int toLev) |
---|
1269 | { |
---|
1270 | idhdl h=(idhdl)v->data; |
---|
1271 | //Print("iiInternalExport('%s',%d)%s\n", v->name, toLev,""); |
---|
1272 | if (IDLEV(h)==0) |
---|
1273 | { |
---|
1274 | if (!BVERBOSE(V_REDEFINE)) Warn("`%s` is already global",IDID(h)); |
---|
1275 | } |
---|
1276 | else |
---|
1277 | { |
---|
1278 | h=IDROOT->get(v->name,toLev); |
---|
1279 | idhdl *root=&IDROOT; |
---|
1280 | if ((h==NULL)&&(currRing!=NULL)) |
---|
1281 | { |
---|
1282 | h=currRing->idroot->get(v->name,toLev); |
---|
1283 | root=&currRing->idroot; |
---|
1284 | } |
---|
1285 | BOOLEAN keepring=FALSE; |
---|
1286 | if ((h!=NULL)&&(IDLEV(h)==toLev)) |
---|
1287 | { |
---|
1288 | if (IDTYP(h)==v->Typ()) |
---|
1289 | { |
---|
1290 | if (((IDTYP(h)==RING_CMD)||(IDTYP(h)==QRING_CMD)) |
---|
1291 | && (v->Data()==IDDATA(h))) |
---|
1292 | { |
---|
1293 | IDRING(h)->ref++; |
---|
1294 | keepring=TRUE; |
---|
1295 | IDLEV(h)=toLev; |
---|
1296 | //WarnS("keepring"); |
---|
1297 | return FALSE; |
---|
1298 | } |
---|
1299 | if (BVERBOSE(V_REDEFINE)) |
---|
1300 | { |
---|
1301 | Warn("redefining %s",IDID(h)); |
---|
1302 | } |
---|
1303 | #ifdef USE_IILOCALRING |
---|
1304 | if (iiLocalRing[0]==IDRING(h) && (!keepring)) iiLocalRing[0]=NULL; |
---|
1305 | #else |
---|
1306 | proclevel *p=procstack; |
---|
1307 | while (p->next!=NULL) p=p->next; |
---|
1308 | if ((p->cRing==IDRING(h)) && (!keepring)) |
---|
1309 | { |
---|
1310 | p->cRing=NULL; |
---|
1311 | p->cRingHdl=NULL; |
---|
1312 | } |
---|
1313 | #endif |
---|
1314 | killhdl2(h,root,currRing); |
---|
1315 | } |
---|
1316 | else |
---|
1317 | { |
---|
1318 | return TRUE; |
---|
1319 | } |
---|
1320 | } |
---|
1321 | h=(idhdl)v->data; |
---|
1322 | IDLEV(h)=toLev; |
---|
1323 | if (keepring) IDRING(h)->ref--; |
---|
1324 | iiNoKeepRing=FALSE; |
---|
1325 | //Print("export %s\n",IDID(h)); |
---|
1326 | } |
---|
1327 | return FALSE; |
---|
1328 | } |
---|
1329 | |
---|
1330 | BOOLEAN iiInternalExport (leftv v, int toLev, idhdl roothdl) |
---|
1331 | { |
---|
1332 | idhdl h=(idhdl)v->data; |
---|
1333 | if(h==NULL) |
---|
1334 | { |
---|
1335 | Warn("'%s': no such identifier\n", v->name); |
---|
1336 | return FALSE; |
---|
1337 | } |
---|
1338 | package frompack=v->req_packhdl; |
---|
1339 | if (frompack==NULL) frompack=currPack; |
---|
1340 | package rootpack = IDPACKAGE(roothdl); |
---|
1341 | // Print("iiInternalExport('%s',%d,%s->%s) typ:%d\n", v->name, toLev, IDID(currPackHdl),IDID(roothdl),v->Typ()); |
---|
1342 | if ((RingDependend(IDTYP(h))) |
---|
1343 | || ((IDTYP(h)==LIST_CMD) |
---|
1344 | && (lRingDependend(IDLIST(h))) |
---|
1345 | ) |
---|
1346 | ) |
---|
1347 | { |
---|
1348 | //Print("// ==> Ringdependent set nesting to 0\n"); |
---|
1349 | return (iiInternalExport(v, toLev)); |
---|
1350 | } |
---|
1351 | else |
---|
1352 | { |
---|
1353 | IDLEV(h)=toLev; |
---|
1354 | v->req_packhdl=rootpack; |
---|
1355 | if (h==frompack->idroot) |
---|
1356 | { |
---|
1357 | frompack->idroot=h->next; |
---|
1358 | } |
---|
1359 | else |
---|
1360 | { |
---|
1361 | idhdl hh=frompack->idroot; |
---|
1362 | while ((hh!=NULL) && (hh->next!=h)) |
---|
1363 | hh=hh->next; |
---|
1364 | if ((hh!=NULL) && (hh->next==h)) |
---|
1365 | hh->next=h->next; |
---|
1366 | else |
---|
1367 | { |
---|
1368 | Werror("`%s` not found",v->Name()); |
---|
1369 | return TRUE; |
---|
1370 | } |
---|
1371 | } |
---|
1372 | h->next=rootpack->idroot; |
---|
1373 | rootpack->idroot=h; |
---|
1374 | } |
---|
1375 | return FALSE; |
---|
1376 | } |
---|
1377 | |
---|
1378 | BOOLEAN iiExport (leftv v, int toLev) |
---|
1379 | { |
---|
1380 | #ifndef NDEBUG |
---|
1381 | checkall(); |
---|
1382 | #endif |
---|
1383 | BOOLEAN nok=FALSE; |
---|
1384 | leftv r=v; |
---|
1385 | while (v!=NULL) |
---|
1386 | { |
---|
1387 | if ((v->name==NULL)||(v->rtyp==0)||(v->e!=NULL)) |
---|
1388 | { |
---|
1389 | WerrorS("cannot export"); |
---|
1390 | nok=TRUE; |
---|
1391 | } |
---|
1392 | else |
---|
1393 | { |
---|
1394 | if(iiInternalExport(v, toLev)) |
---|
1395 | { |
---|
1396 | r->CleanUp(); |
---|
1397 | return TRUE; |
---|
1398 | } |
---|
1399 | } |
---|
1400 | v=v->next; |
---|
1401 | } |
---|
1402 | r->CleanUp(); |
---|
1403 | #ifndef NDEBUG |
---|
1404 | checkall(); |
---|
1405 | #endif |
---|
1406 | return nok; |
---|
1407 | } |
---|
1408 | |
---|
1409 | /*assume root!=idroot*/ |
---|
1410 | BOOLEAN iiExport (leftv v, int toLev, idhdl root) |
---|
1411 | { |
---|
1412 | #ifndef NDEBUG |
---|
1413 | checkall(); |
---|
1414 | #endif |
---|
1415 | // Print("iiExport1: pack=%s\n",IDID(root)); |
---|
1416 | package pack=IDPACKAGE(root); |
---|
1417 | BOOLEAN nok=FALSE; |
---|
1418 | leftv rv=v; |
---|
1419 | while (v!=NULL) |
---|
1420 | { |
---|
1421 | if ((v->name==NULL)||(v->rtyp==0)||(v->e!=NULL) |
---|
1422 | ) |
---|
1423 | { |
---|
1424 | WerrorS("cannot export"); |
---|
1425 | nok=TRUE; |
---|
1426 | } |
---|
1427 | else |
---|
1428 | { |
---|
1429 | idhdl old=pack->idroot->get( v->name,toLev); |
---|
1430 | if (old!=NULL) |
---|
1431 | { |
---|
1432 | if ((pack==currPack) && (old==(idhdl)v->data)) |
---|
1433 | { |
---|
1434 | if (!BVERBOSE(V_REDEFINE)) Warn("`%s` is already global",IDID(old)); |
---|
1435 | break; |
---|
1436 | } |
---|
1437 | else if (IDTYP(old)==v->Typ()) |
---|
1438 | { |
---|
1439 | if (BVERBOSE(V_REDEFINE)) |
---|
1440 | { |
---|
1441 | Warn("redefining %s",IDID(old)); |
---|
1442 | } |
---|
1443 | v->name=omStrDup(v->name); |
---|
1444 | killhdl2(old,&(pack->idroot),currRing); |
---|
1445 | } |
---|
1446 | else |
---|
1447 | { |
---|
1448 | rv->CleanUp(); |
---|
1449 | return TRUE; |
---|
1450 | } |
---|
1451 | } |
---|
1452 | //Print("iiExport: pack=%s\n",IDID(root)); |
---|
1453 | if(iiInternalExport(v, toLev, root)) |
---|
1454 | { |
---|
1455 | rv->CleanUp(); |
---|
1456 | return TRUE; |
---|
1457 | } |
---|
1458 | } |
---|
1459 | v=v->next; |
---|
1460 | } |
---|
1461 | rv->CleanUp(); |
---|
1462 | #ifndef NDEBUG |
---|
1463 | checkall(); |
---|
1464 | #endif |
---|
1465 | return nok; |
---|
1466 | } |
---|
1467 | |
---|
1468 | BOOLEAN iiCheckRing(int i) |
---|
1469 | { |
---|
1470 | if (currRing==NULL) |
---|
1471 | { |
---|
1472 | #ifdef SIQ |
---|
1473 | if (siq<=0) |
---|
1474 | { |
---|
1475 | #endif |
---|
1476 | if (RingDependend(i)) |
---|
1477 | { |
---|
1478 | WerrorS("no ring active"); |
---|
1479 | return TRUE; |
---|
1480 | } |
---|
1481 | #ifdef SIQ |
---|
1482 | } |
---|
1483 | #endif |
---|
1484 | } |
---|
1485 | return FALSE; |
---|
1486 | } |
---|
1487 | |
---|
1488 | poly iiHighCorner(ideal I, int ak) |
---|
1489 | { |
---|
1490 | int i; |
---|
1491 | if(!idIsZeroDim(I)) return NULL; // not zero-dim. |
---|
1492 | poly po=NULL; |
---|
1493 | if (rHasLocalOrMixedOrdering_currRing()) |
---|
1494 | { |
---|
1495 | scComputeHC(I,currQuotient,ak,po); |
---|
1496 | if (po!=NULL) |
---|
1497 | { |
---|
1498 | pGetCoeff(po)=nInit(1); |
---|
1499 | for (i=rVar(currRing); i>0; i--) |
---|
1500 | { |
---|
1501 | if (pGetExp(po, i) > 0) pDecrExp(po,i); |
---|
1502 | } |
---|
1503 | pSetComp(po,ak); |
---|
1504 | pSetm(po); |
---|
1505 | } |
---|
1506 | } |
---|
1507 | else |
---|
1508 | po=pOne(); |
---|
1509 | return po; |
---|
1510 | } |
---|
1511 | |
---|
1512 | void iiCheckPack(package &p) |
---|
1513 | { |
---|
1514 | if (p==basePack) return; |
---|
1515 | |
---|
1516 | idhdl t=basePack->idroot; |
---|
1517 | |
---|
1518 | while ((t!=NULL) && (IDTYP(t)!=PACKAGE_CMD) && (IDPACKAGE(t)!=p)) t=t->next; |
---|
1519 | |
---|
1520 | if (t==NULL) |
---|
1521 | { |
---|
1522 | WarnS("package not found\n"); |
---|
1523 | p=basePack; |
---|
1524 | } |
---|
1525 | return; |
---|
1526 | } |
---|
1527 | |
---|
1528 | idhdl rDefault(const char *s) |
---|
1529 | { |
---|
1530 | idhdl tmp=NULL; |
---|
1531 | |
---|
1532 | if (s!=NULL) tmp = enterid(s, myynest, RING_CMD, &IDROOT); |
---|
1533 | if (tmp==NULL) return NULL; |
---|
1534 | |
---|
1535 | // if ((currRing->ppNoether)!=NULL) pDelete(&(currRing->ppNoether)); |
---|
1536 | if (sLastPrinted.RingDependend()) |
---|
1537 | { |
---|
1538 | sLastPrinted.CleanUp(); |
---|
1539 | memset(&sLastPrinted,0,sizeof(sleftv)); |
---|
1540 | } |
---|
1541 | |
---|
1542 | ring r = IDRING(tmp); |
---|
1543 | |
---|
1544 | r->cf = nInitChar(n_Zp, (void*)32003); // r->cf->ch = 32003; |
---|
1545 | r->N = 3; |
---|
1546 | /*r->P = 0; Alloc0 in idhdl::set, ipid.cc*/ |
---|
1547 | /*names*/ |
---|
1548 | r->names = (char **) omAlloc0(3 * sizeof(char_ptr)); |
---|
1549 | r->names[0] = omStrDup("x"); |
---|
1550 | r->names[1] = omStrDup("y"); |
---|
1551 | r->names[2] = omStrDup("z"); |
---|
1552 | /*weights: entries for 3 blocks: NULL*/ |
---|
1553 | r->wvhdl = (int **)omAlloc0(3 * sizeof(int_ptr)); |
---|
1554 | /*order: dp,C,0*/ |
---|
1555 | r->order = (int *) omAlloc(3 * sizeof(int *)); |
---|
1556 | r->block0 = (int *)omAlloc0(3 * sizeof(int *)); |
---|
1557 | r->block1 = (int *)omAlloc0(3 * sizeof(int *)); |
---|
1558 | /* ringorder dp for the first block: var 1..3 */ |
---|
1559 | r->order[0] = ringorder_dp; |
---|
1560 | r->block0[0] = 1; |
---|
1561 | r->block1[0] = 3; |
---|
1562 | /* ringorder C for the second block: no vars */ |
---|
1563 | r->order[1] = ringorder_C; |
---|
1564 | /* the last block: everything is 0 */ |
---|
1565 | r->order[2] = 0; |
---|
1566 | /*polynomial ring*/ |
---|
1567 | r->OrdSgn = 1; |
---|
1568 | |
---|
1569 | /* complete ring intializations */ |
---|
1570 | rComplete(r); |
---|
1571 | rSetHdl(tmp); |
---|
1572 | return currRingHdl; |
---|
1573 | } |
---|
1574 | |
---|
1575 | idhdl rFindHdl(ring r, idhdl n, idhdl) |
---|
1576 | { |
---|
1577 | idhdl h=rSimpleFindHdl(r,IDROOT,n); |
---|
1578 | if (h!=NULL) return h; |
---|
1579 | if (IDROOT!=basePack->idroot) h=rSimpleFindHdl(r,basePack->idroot,n); |
---|
1580 | if (h!=NULL) return h; |
---|
1581 | proclevel *p=procstack; |
---|
1582 | while(p!=NULL) |
---|
1583 | { |
---|
1584 | if ((p->cPack!=basePack) |
---|
1585 | && (p->cPack!=currPack)) |
---|
1586 | h=rSimpleFindHdl(r,p->cPack->idroot,n); |
---|
1587 | if (h!=NULL) return h; |
---|
1588 | p=p->next; |
---|
1589 | } |
---|
1590 | idhdl tmp=basePack->idroot; |
---|
1591 | while (tmp!=NULL) |
---|
1592 | { |
---|
1593 | if (IDTYP(tmp)==PACKAGE_CMD) |
---|
1594 | h=rSimpleFindHdl(r,IDPACKAGE(tmp)->idroot,n); |
---|
1595 | if (h!=NULL) return h; |
---|
1596 | tmp=IDNEXT(tmp); |
---|
1597 | } |
---|
1598 | return NULL; |
---|
1599 | } |
---|
1600 | |
---|
1601 | void rDecomposeCF(leftv h,const ring r,const ring R) |
---|
1602 | { |
---|
1603 | lists L=(lists)omAlloc0Bin(slists_bin); |
---|
1604 | L->Init(4); |
---|
1605 | h->rtyp=LIST_CMD; |
---|
1606 | h->data=(void *)L; |
---|
1607 | // 0: char/ cf - ring |
---|
1608 | // 1: list (var) |
---|
1609 | // 2: list (ord) |
---|
1610 | // 3: qideal |
---|
1611 | // ---------------------------------------- |
---|
1612 | // 0: char/ cf - ring |
---|
1613 | L->m[0].rtyp=INT_CMD; |
---|
1614 | L->m[0].data=(void *)r->cf->ch; |
---|
1615 | // ---------------------------------------- |
---|
1616 | // 1: list (var) |
---|
1617 | lists LL=(lists)omAlloc0Bin(slists_bin); |
---|
1618 | LL->Init(r->N); |
---|
1619 | int i; |
---|
1620 | for(i=0; i<r->N; i++) |
---|
1621 | { |
---|
1622 | LL->m[i].rtyp=STRING_CMD; |
---|
1623 | LL->m[i].data=(void *)omStrDup(r->names[i]); |
---|
1624 | } |
---|
1625 | L->m[1].rtyp=LIST_CMD; |
---|
1626 | L->m[1].data=(void *)LL; |
---|
1627 | // ---------------------------------------- |
---|
1628 | // 2: list (ord) |
---|
1629 | LL=(lists)omAlloc0Bin(slists_bin); |
---|
1630 | i=rBlocks(r)-1; |
---|
1631 | LL->Init(i); |
---|
1632 | i--; |
---|
1633 | lists LLL; |
---|
1634 | for(; i>=0; i--) |
---|
1635 | { |
---|
1636 | intvec *iv; |
---|
1637 | int j; |
---|
1638 | LL->m[i].rtyp=LIST_CMD; |
---|
1639 | LLL=(lists)omAlloc0Bin(slists_bin); |
---|
1640 | LLL->Init(2); |
---|
1641 | LLL->m[0].rtyp=STRING_CMD; |
---|
1642 | LLL->m[0].data=(void *)omStrDup(rSimpleOrdStr(r->order[i])); |
---|
1643 | if (r->block1[i]-r->block0[i] >=0 ) |
---|
1644 | { |
---|
1645 | j=r->block1[i]-r->block0[i]; |
---|
1646 | if(r->order[i]==ringorder_M) j=(j+1)*(j+1)-1; |
---|
1647 | iv=new intvec(j+1); |
---|
1648 | if ((r->wvhdl!=NULL) && (r->wvhdl[i]!=NULL)) |
---|
1649 | { |
---|
1650 | for(;j>=0; j--) (*iv)[j]=r->wvhdl[i][j]; |
---|
1651 | } |
---|
1652 | else switch (r->order[i]) |
---|
1653 | { |
---|
1654 | case ringorder_dp: |
---|
1655 | case ringorder_Dp: |
---|
1656 | case ringorder_ds: |
---|
1657 | case ringorder_Ds: |
---|
1658 | case ringorder_lp: |
---|
1659 | for(;j>=0; j--) (*iv)[j]=1; |
---|
1660 | break; |
---|
1661 | default: /* do nothing */; |
---|
1662 | } |
---|
1663 | } |
---|
1664 | else |
---|
1665 | { |
---|
1666 | iv=new intvec(1); |
---|
1667 | } |
---|
1668 | LLL->m[1].rtyp=INTVEC_CMD; |
---|
1669 | LLL->m[1].data=(void *)iv; |
---|
1670 | LL->m[i].data=(void *)LLL; |
---|
1671 | } |
---|
1672 | L->m[2].rtyp=LIST_CMD; |
---|
1673 | L->m[2].data=(void *)LL; |
---|
1674 | // ---------------------------------------- |
---|
1675 | // 3: qideal |
---|
1676 | L->m[3].rtyp=IDEAL_CMD; |
---|
1677 | if (nCoeff_is_transExt(R->cf)) |
---|
1678 | L->m[3].data=(void *)idInit(1,1); |
---|
1679 | else |
---|
1680 | { |
---|
1681 | ideal q=idInit(IDELEMS(r->qideal)); |
---|
1682 | q->m[0]=p_Init(R); |
---|
1683 | pSetCoeff0(q->m[0],(number)(r->qideal->m[0])); |
---|
1684 | L->m[3].data=(void *)q; |
---|
1685 | // I->m[0] = pNSet(R->minpoly); |
---|
1686 | } |
---|
1687 | // ---------------------------------------- |
---|
1688 | } |
---|
1689 | void rDecomposeC(leftv h,const ring R) |
---|
1690 | /* field is R or C */ |
---|
1691 | { |
---|
1692 | lists L=(lists)omAlloc0Bin(slists_bin); |
---|
1693 | if (rField_is_long_C(R)) L->Init(3); |
---|
1694 | else L->Init(2); |
---|
1695 | h->rtyp=LIST_CMD; |
---|
1696 | h->data=(void *)L; |
---|
1697 | // 0: char/ cf - ring |
---|
1698 | // 1: list (var) |
---|
1699 | // 2: list (ord) |
---|
1700 | // ---------------------------------------- |
---|
1701 | // 0: char/ cf - ring |
---|
1702 | L->m[0].rtyp=INT_CMD; |
---|
1703 | L->m[0].data=(void *)0; |
---|
1704 | // ---------------------------------------- |
---|
1705 | // 1: |
---|
1706 | lists LL=(lists)omAlloc0Bin(slists_bin); |
---|
1707 | LL->Init(2); |
---|
1708 | LL->m[0].rtyp=INT_CMD; |
---|
1709 | LL->m[0].data=(void *)si_max(R->cf->float_len,SHORT_REAL_LENGTH/2); |
---|
1710 | LL->m[1].rtyp=INT_CMD; |
---|
1711 | LL->m[1].data=(void *)si_max(R->cf->float_len2,SHORT_REAL_LENGTH); |
---|
1712 | L->m[1].rtyp=LIST_CMD; |
---|
1713 | L->m[1].data=(void *)LL; |
---|
1714 | // ---------------------------------------- |
---|
1715 | // 2: list (par) |
---|
1716 | if (rField_is_long_C(R)) |
---|
1717 | { |
---|
1718 | L->m[2].rtyp=STRING_CMD; |
---|
1719 | L->m[2].data=(void *)omStrDup(*rParameter(R)); |
---|
1720 | } |
---|
1721 | // ---------------------------------------- |
---|
1722 | } |
---|
1723 | |
---|
1724 | #ifdef HAVE_RINGS |
---|
1725 | void rDecomposeRing(leftv h,const ring R) |
---|
1726 | /* field is R or C */ |
---|
1727 | { |
---|
1728 | lists L=(lists)omAlloc0Bin(slists_bin); |
---|
1729 | if (rField_is_Ring_Z(R)) L->Init(1); |
---|
1730 | else L->Init(2); |
---|
1731 | h->rtyp=LIST_CMD; |
---|
1732 | h->data=(void *)L; |
---|
1733 | // 0: char/ cf - ring |
---|
1734 | // 1: list (module) |
---|
1735 | // ---------------------------------------- |
---|
1736 | // 0: char/ cf - ring |
---|
1737 | L->m[0].rtyp=STRING_CMD; |
---|
1738 | L->m[0].data=(void *)omStrDup("integer"); |
---|
1739 | // ---------------------------------------- |
---|
1740 | // 1: module |
---|
1741 | if (rField_is_Ring_Z(R)) return; |
---|
1742 | lists LL=(lists)omAlloc0Bin(slists_bin); |
---|
1743 | LL->Init(2); |
---|
1744 | LL->m[0].rtyp=BIGINT_CMD; |
---|
1745 | LL->m[0].data=nlMapGMP((number) R->cf->modBase, R->cf, R->cf); |
---|
1746 | LL->m[1].rtyp=INT_CMD; |
---|
1747 | LL->m[1].data=(void *) R->cf->modExponent; |
---|
1748 | L->m[1].rtyp=LIST_CMD; |
---|
1749 | L->m[1].data=(void *)LL; |
---|
1750 | } |
---|
1751 | #endif |
---|
1752 | |
---|
1753 | |
---|
1754 | lists rDecompose(const ring r) |
---|
1755 | { |
---|
1756 | assume( r != NULL ); |
---|
1757 | const coeffs C = r->cf; |
---|
1758 | assume( C != NULL ); |
---|
1759 | |
---|
1760 | // sanity check: require currRing==r for rings with polynomial data |
---|
1761 | if ( (r!=currRing) && ( |
---|
1762 | (nCoeff_is_algExt(C) && (C != currRing->cf)) |
---|
1763 | || (r->qideal != NULL) |
---|
1764 | #ifdef HAVE_PLURAL |
---|
1765 | || (rIsPluralRing(r)) |
---|
1766 | #endif |
---|
1767 | ) |
---|
1768 | ) |
---|
1769 | { |
---|
1770 | WerrorS("ring with polynomial data must be the base ring or compatible"); |
---|
1771 | return NULL; |
---|
1772 | } |
---|
1773 | // 0: char/ cf - ring |
---|
1774 | // 1: list (var) |
---|
1775 | // 2: list (ord) |
---|
1776 | // 3: qideal |
---|
1777 | // possibly: |
---|
1778 | // 4: C |
---|
1779 | // 5: D |
---|
1780 | lists L=(lists)omAlloc0Bin(slists_bin); |
---|
1781 | if (rIsPluralRing(r)) |
---|
1782 | L->Init(6); |
---|
1783 | else |
---|
1784 | L->Init(4); |
---|
1785 | // ---------------------------------------- |
---|
1786 | // 0: char/ cf - ring |
---|
1787 | if (rField_is_numeric(r)) |
---|
1788 | { |
---|
1789 | rDecomposeC(&(L->m[0]),r); |
---|
1790 | } |
---|
1791 | #ifdef HAVE_RINGS |
---|
1792 | else if (rField_is_Ring(r)) |
---|
1793 | { |
---|
1794 | rDecomposeRing(&(L->m[0]),r); |
---|
1795 | } |
---|
1796 | #endif |
---|
1797 | else if (rIsExtension(r)) |
---|
1798 | { |
---|
1799 | if ( rField_is_Extension(r) )// nCoeff_is_algExt(r->cf)) |
---|
1800 | { |
---|
1801 | assume( r->cf != NULL ); |
---|
1802 | assume( r->cf->extRing != NULL ); |
---|
1803 | |
---|
1804 | rDecomposeCF(&(L->m[0]), r->cf->extRing, r); |
---|
1805 | } |
---|
1806 | else |
---|
1807 | { |
---|
1808 | assume( nCoeff_is_GF(r->cf) ); |
---|
1809 | |
---|
1810 | lists Lc=(lists)omAlloc0Bin(slists_bin); |
---|
1811 | Lc->Init(4); |
---|
1812 | // char: |
---|
1813 | Lc->m[0].rtyp=INT_CMD; |
---|
1814 | Lc->m[0].data=(void*)r->cf->m_nfCharQ; |
---|
1815 | // var: |
---|
1816 | lists Lv=(lists)omAlloc0Bin(slists_bin); |
---|
1817 | Lv->Init(1); |
---|
1818 | Lv->m[0].rtyp=STRING_CMD; |
---|
1819 | Lv->m[0].data=(void *)omStrDup(*rParameter(r)); |
---|
1820 | Lc->m[1].rtyp=LIST_CMD; |
---|
1821 | Lc->m[1].data=(void*)Lv; |
---|
1822 | // ord: |
---|
1823 | lists Lo=(lists)omAlloc0Bin(slists_bin); |
---|
1824 | Lo->Init(1); |
---|
1825 | lists Loo=(lists)omAlloc0Bin(slists_bin); |
---|
1826 | Loo->Init(2); |
---|
1827 | Loo->m[0].rtyp=STRING_CMD; |
---|
1828 | Loo->m[0].data=(void *)omStrDup(rSimpleOrdStr(ringorder_lp)); |
---|
1829 | |
---|
1830 | intvec *iv=new intvec(1); (*iv)[0]=1; |
---|
1831 | Loo->m[1].rtyp=INTVEC_CMD; |
---|
1832 | Loo->m[1].data=(void *)iv; |
---|
1833 | |
---|
1834 | Lo->m[0].rtyp=LIST_CMD; |
---|
1835 | Lo->m[0].data=(void*)Loo; |
---|
1836 | |
---|
1837 | Lc->m[2].rtyp=LIST_CMD; |
---|
1838 | Lc->m[2].data=(void*)Lo; |
---|
1839 | // q-ideal: |
---|
1840 | Lc->m[3].rtyp=IDEAL_CMD; |
---|
1841 | Lc->m[3].data=(void *)idInit(1,1); |
---|
1842 | // ---------------------- |
---|
1843 | L->m[0].rtyp=LIST_CMD; |
---|
1844 | L->m[0].data=(void*)Lc; |
---|
1845 | } |
---|
1846 | if (L->m[0].rtyp==0) |
---|
1847 | { |
---|
1848 | //omFreeBin(slists_bin,(void *)L); |
---|
1849 | return NULL; |
---|
1850 | } |
---|
1851 | } |
---|
1852 | else |
---|
1853 | { |
---|
1854 | L->m[0].rtyp=INT_CMD; |
---|
1855 | L->m[0].data=(void *)r->cf->ch; |
---|
1856 | } |
---|
1857 | // ---------------------------------------- |
---|
1858 | // 1: list (var) |
---|
1859 | lists LL=(lists)omAlloc0Bin(slists_bin); |
---|
1860 | LL->Init(r->N); |
---|
1861 | int i; |
---|
1862 | for(i=0; i<r->N; i++) |
---|
1863 | { |
---|
1864 | LL->m[i].rtyp=STRING_CMD; |
---|
1865 | LL->m[i].data=(void *)omStrDup(r->names[i]); |
---|
1866 | } |
---|
1867 | L->m[1].rtyp=LIST_CMD; |
---|
1868 | L->m[1].data=(void *)LL; |
---|
1869 | // ---------------------------------------- |
---|
1870 | // 2: list (ord) |
---|
1871 | LL=(lists)omAlloc0Bin(slists_bin); |
---|
1872 | i=rBlocks(r)-1; |
---|
1873 | LL->Init(i); |
---|
1874 | i--; |
---|
1875 | lists LLL; |
---|
1876 | for(; i>=0; i--) |
---|
1877 | { |
---|
1878 | intvec *iv; |
---|
1879 | int j; |
---|
1880 | LL->m[i].rtyp=LIST_CMD; |
---|
1881 | LLL=(lists)omAlloc0Bin(slists_bin); |
---|
1882 | LLL->Init(2); |
---|
1883 | LLL->m[0].rtyp=STRING_CMD; |
---|
1884 | LLL->m[0].data=(void *)omStrDup(rSimpleOrdStr(r->order[i])); |
---|
1885 | |
---|
1886 | if(r->order[i] == ringorder_IS) // || r->order[i] == ringorder_s || r->order[i] == ringorder_S) |
---|
1887 | { |
---|
1888 | assume( r->block0[i] == r->block1[i] ); |
---|
1889 | const int s = r->block0[i]; |
---|
1890 | assume( -2 < s && s < 2); |
---|
1891 | |
---|
1892 | iv=new intvec(1); |
---|
1893 | (*iv)[0] = s; |
---|
1894 | } |
---|
1895 | else if (r->block1[i]-r->block0[i] >=0 ) |
---|
1896 | { |
---|
1897 | int bl=j=r->block1[i]-r->block0[i]; |
---|
1898 | if (r->order[i]==ringorder_M) |
---|
1899 | { |
---|
1900 | j=(j+1)*(j+1)-1; |
---|
1901 | bl=j+1; |
---|
1902 | } |
---|
1903 | else if (r->order[i]==ringorder_am) |
---|
1904 | { |
---|
1905 | j+=r->wvhdl[i][bl+1]; |
---|
1906 | } |
---|
1907 | iv=new intvec(j+1); |
---|
1908 | if ((r->wvhdl!=NULL) && (r->wvhdl[i]!=NULL)) |
---|
1909 | { |
---|
1910 | for(;j>=0; j--) (*iv)[j]=r->wvhdl[i][j+(j>bl)]; |
---|
1911 | } |
---|
1912 | else switch (r->order[i]) |
---|
1913 | { |
---|
1914 | case ringorder_dp: |
---|
1915 | case ringorder_Dp: |
---|
1916 | case ringorder_ds: |
---|
1917 | case ringorder_Ds: |
---|
1918 | case ringorder_lp: |
---|
1919 | for(;j>=0; j--) (*iv)[j]=1; |
---|
1920 | break; |
---|
1921 | default: /* do nothing */; |
---|
1922 | } |
---|
1923 | } |
---|
1924 | else |
---|
1925 | { |
---|
1926 | iv=new intvec(1); |
---|
1927 | } |
---|
1928 | LLL->m[1].rtyp=INTVEC_CMD; |
---|
1929 | LLL->m[1].data=(void *)iv; |
---|
1930 | LL->m[i].data=(void *)LLL; |
---|
1931 | } |
---|
1932 | L->m[2].rtyp=LIST_CMD; |
---|
1933 | L->m[2].data=(void *)LL; |
---|
1934 | // ---------------------------------------- |
---|
1935 | // 3: qideal |
---|
1936 | L->m[3].rtyp=IDEAL_CMD; |
---|
1937 | if (r->qideal==NULL) |
---|
1938 | L->m[3].data=(void *)idInit(1,1); |
---|
1939 | else |
---|
1940 | L->m[3].data=(void *)idCopy(r->qideal); |
---|
1941 | // ---------------------------------------- |
---|
1942 | #ifdef HAVE_PLURAL // NC! in rDecompose |
---|
1943 | if (rIsPluralRing(r)) |
---|
1944 | { |
---|
1945 | L->m[4].rtyp=MATRIX_CMD; |
---|
1946 | L->m[4].data=(void *)mp_Copy(r->GetNC()->C, r, r); |
---|
1947 | L->m[5].rtyp=MATRIX_CMD; |
---|
1948 | L->m[5].data=(void *)mp_Copy(r->GetNC()->D, r, r); |
---|
1949 | } |
---|
1950 | #endif |
---|
1951 | return L; |
---|
1952 | } |
---|
1953 | |
---|
1954 | void rComposeC(lists L, ring R) |
---|
1955 | /* field is R or C */ |
---|
1956 | { |
---|
1957 | // ---------------------------------------- |
---|
1958 | // 0: char/ cf - ring |
---|
1959 | if ((L->m[0].rtyp!=INT_CMD) || (L->m[0].data!=(char *)0)) |
---|
1960 | { |
---|
1961 | Werror("invald coeff. field description, expecting 0"); |
---|
1962 | return; |
---|
1963 | } |
---|
1964 | // R->cf->ch=0; |
---|
1965 | // ---------------------------------------- |
---|
1966 | // 1: |
---|
1967 | if (L->m[1].rtyp!=LIST_CMD) |
---|
1968 | Werror("invald coeff. field description, expecting precision list"); |
---|
1969 | lists LL=(lists)L->m[1].data; |
---|
1970 | int r1=(int)(long)LL->m[0].data; |
---|
1971 | int r2=(int)(long)LL->m[1].data; |
---|
1972 | if (L->nr==2) // complex |
---|
1973 | R->cf = nInitChar(n_long_C, NULL); |
---|
1974 | else if ((r1<=SHORT_REAL_LENGTH) |
---|
1975 | && (r2=SHORT_REAL_LENGTH)) |
---|
1976 | R->cf = nInitChar(n_R, NULL); |
---|
1977 | else |
---|
1978 | R->cf = nInitChar(n_long_R, NULL); |
---|
1979 | |
---|
1980 | if ((r1<=SHORT_REAL_LENGTH) // should go into nInitChar |
---|
1981 | && (r2=SHORT_REAL_LENGTH)) |
---|
1982 | { |
---|
1983 | R->cf->float_len=SHORT_REAL_LENGTH/2; |
---|
1984 | R->cf->float_len2=SHORT_REAL_LENGTH; |
---|
1985 | } |
---|
1986 | else |
---|
1987 | { |
---|
1988 | R->cf->float_len=si_min(r1,32767); |
---|
1989 | R->cf->float_len2=si_min(r2,32767); |
---|
1990 | } |
---|
1991 | // ---------------------------------------- |
---|
1992 | // 2: list (par) |
---|
1993 | if (L->nr==2) |
---|
1994 | { |
---|
1995 | R->cf->extRing->N=1; |
---|
1996 | if (L->m[2].rtyp!=STRING_CMD) |
---|
1997 | { |
---|
1998 | Werror("invald coeff. field description, expecting parameter name"); |
---|
1999 | return; |
---|
2000 | } |
---|
2001 | R->cf->extRing->names=(char**)omAlloc0(rPar(R)*sizeof(char_ptr)); |
---|
2002 | R->cf->extRing->names[0]=omStrDup((char *)L->m[2].data); |
---|
2003 | } |
---|
2004 | // ---------------------------------------- |
---|
2005 | } |
---|
2006 | |
---|
2007 | #ifdef HAVE_RINGS |
---|
2008 | void rComposeRing(lists L, ring R) |
---|
2009 | /* field is R or C */ |
---|
2010 | { |
---|
2011 | // ---------------------------------------- |
---|
2012 | // 0: string: integer |
---|
2013 | // no further entries --> Z |
---|
2014 | int_number modBase = NULL; |
---|
2015 | unsigned int modExponent = 1; |
---|
2016 | |
---|
2017 | modBase = (int_number) omAlloc(sizeof(mpz_t)); |
---|
2018 | if (L->nr == 0) |
---|
2019 | { |
---|
2020 | mpz_init_set_ui(modBase,0); |
---|
2021 | modExponent = 1; |
---|
2022 | } |
---|
2023 | // ---------------------------------------- |
---|
2024 | // 1: |
---|
2025 | else |
---|
2026 | { |
---|
2027 | if (L->m[1].rtyp!=LIST_CMD) Werror("invald data, expecting list of numbers"); |
---|
2028 | lists LL=(lists)L->m[1].data; |
---|
2029 | if ((LL->nr >= 0) && LL->m[0].rtyp == BIGINT_CMD) |
---|
2030 | { |
---|
2031 | number tmp= (number) LL->m[0].data; |
---|
2032 | n_MPZ (modBase, tmp, coeffs_BIGINT); |
---|
2033 | } |
---|
2034 | else if (LL->nr >= 0 && LL->m[0].rtyp == INT_CMD) |
---|
2035 | { |
---|
2036 | mpz_init_set_ui(modBase,(unsigned long) LL->m[0].data); |
---|
2037 | } |
---|
2038 | else |
---|
2039 | { |
---|
2040 | mpz_init_set_ui(modBase,0); |
---|
2041 | } |
---|
2042 | if (LL->nr >= 1) |
---|
2043 | { |
---|
2044 | modExponent = (unsigned long) LL->m[1].data; |
---|
2045 | } |
---|
2046 | else |
---|
2047 | { |
---|
2048 | modExponent = 1; |
---|
2049 | } |
---|
2050 | } |
---|
2051 | // ---------------------------------------- |
---|
2052 | if ((mpz_cmp_ui(modBase, 1) == 0) && (mpz_cmp_ui(modBase, 0) < 0)) |
---|
2053 | { |
---|
2054 | Werror("Wrong ground ring specification (module is 1)"); |
---|
2055 | return; |
---|
2056 | } |
---|
2057 | if (modExponent < 1) |
---|
2058 | { |
---|
2059 | Werror("Wrong ground ring specification (exponent smaller than 1"); |
---|
2060 | return; |
---|
2061 | } |
---|
2062 | // module is 0 ---> integers |
---|
2063 | if (mpz_cmp_ui(modBase, 0) == 0) |
---|
2064 | { |
---|
2065 | R->cf=nInitChar(n_Z,NULL); |
---|
2066 | } |
---|
2067 | // we have an exponent |
---|
2068 | else if (modExponent > 1) |
---|
2069 | { |
---|
2070 | //R->cf->ch = R->cf->modExponent; |
---|
2071 | if ((mpz_cmp_ui(modBase, 2) == 0) && (modExponent <= 8*sizeof(NATNUMBER))) |
---|
2072 | { |
---|
2073 | /* this branch should be active for modExponent = 2..32 resp. 2..64, |
---|
2074 | depending on the size of a long on the respective platform */ |
---|
2075 | R->cf=nInitChar(n_Z2m,(void*)(long)modExponent); // Use Z/2^ch |
---|
2076 | omFreeSize (modBase, sizeof(mpz_t)); |
---|
2077 | } |
---|
2078 | else |
---|
2079 | { |
---|
2080 | //ringtype 3 |
---|
2081 | ZnmInfo info; |
---|
2082 | info.base= modBase; |
---|
2083 | info.exp= modExponent; |
---|
2084 | R->cf=nInitChar(n_Znm,(void*) &info); |
---|
2085 | } |
---|
2086 | } |
---|
2087 | // just a module m > 1 |
---|
2088 | else |
---|
2089 | { |
---|
2090 | //ringtype = 2; |
---|
2091 | //const int ch = mpz_get_ui(modBase); |
---|
2092 | ZnmInfo info; |
---|
2093 | info.base= modBase; |
---|
2094 | info.exp= modExponent; |
---|
2095 | R->cf=nInitChar(n_Zn,(void*) &info); |
---|
2096 | } |
---|
2097 | } |
---|
2098 | #endif |
---|
2099 | |
---|
2100 | static void rRenameVars(ring R) |
---|
2101 | { |
---|
2102 | int i,j; |
---|
2103 | for(i=0;i<R->N-1;i++) |
---|
2104 | { |
---|
2105 | for(j=i+1;j<R->N;j++) |
---|
2106 | { |
---|
2107 | if (strcmp(R->names[i],R->names[j])==0) |
---|
2108 | { |
---|
2109 | Warn("name conflict var(%d) and var(%d): `%s`, rename to `@(%d)`",i+1,j+1,R->names[i],j+1); |
---|
2110 | omFree(R->names[j]); |
---|
2111 | R->names[j]=(char *)omAlloc(10); |
---|
2112 | sprintf(R->names[j],"@(%d)",j+1); |
---|
2113 | } |
---|
2114 | } |
---|
2115 | } |
---|
2116 | for(i=0;i<rPar(R); i++) |
---|
2117 | { |
---|
2118 | for(j=0;j<R->N;j++) |
---|
2119 | { |
---|
2120 | if (strcmp(rParameter(R)[i],R->names[j])==0) |
---|
2121 | { |
---|
2122 | Warn("name conflict par(%d) and var(%d): `%s`, renaming the VARIABLE to `@@(%d)`",i+1,j+1,R->names[j],i+1); |
---|
2123 | // omFree(rParameter(R)[i]); |
---|
2124 | // rParameter(R)[i]=(char *)omAlloc(10); |
---|
2125 | // sprintf(rParameter(R)[i],"@@(%d)",i+1); |
---|
2126 | omFree(R->names[j]); |
---|
2127 | R->names[j]=(char *)omAlloc(10); |
---|
2128 | sprintf(R->names[j],"@@(%d)",i+1); |
---|
2129 | } |
---|
2130 | } |
---|
2131 | } |
---|
2132 | } |
---|
2133 | |
---|
2134 | ring rCompose(const lists L, const BOOLEAN check_comp) |
---|
2135 | { |
---|
2136 | if ((L->nr!=3) |
---|
2137 | #ifdef HAVE_PLURAL |
---|
2138 | &&(L->nr!=5) |
---|
2139 | #endif |
---|
2140 | ) |
---|
2141 | return NULL; |
---|
2142 | int is_gf_char=0; |
---|
2143 | // 0: char/ cf - ring |
---|
2144 | // 1: list (var) |
---|
2145 | // 2: list (ord) |
---|
2146 | // 3: qideal |
---|
2147 | // possibly: |
---|
2148 | // 4: C |
---|
2149 | // 5: D |
---|
2150 | |
---|
2151 | ring R = (ring) omAlloc0Bin(sip_sring_bin); |
---|
2152 | |
---|
2153 | |
---|
2154 | // ------------------------------------------------------------------ |
---|
2155 | // 0: char: |
---|
2156 | if (L->m[0].Typ()==INT_CMD) |
---|
2157 | { |
---|
2158 | int ch = (int)(long)L->m[0].Data(); |
---|
2159 | assume( ch >= 0 ); |
---|
2160 | |
---|
2161 | if (ch == 0) // Q? |
---|
2162 | R->cf = nInitChar(n_Q, NULL); |
---|
2163 | else |
---|
2164 | { |
---|
2165 | int l = IsPrime(ch); // Zp? |
---|
2166 | if( l != ch ) |
---|
2167 | { |
---|
2168 | Warn("%d is invalid characteristic of ground field. %d is used.", ch, l); |
---|
2169 | ch = l; |
---|
2170 | } |
---|
2171 | R->cf = nInitChar(n_Zp, (void*)ch); |
---|
2172 | } |
---|
2173 | } |
---|
2174 | else if (L->m[0].Typ()==LIST_CMD) // something complicated... |
---|
2175 | { |
---|
2176 | lists LL=(lists)L->m[0].Data(); |
---|
2177 | |
---|
2178 | #ifdef HAVE_RINGS |
---|
2179 | if (LL->m[0].Typ() == STRING_CMD) // 1st comes a string? |
---|
2180 | { |
---|
2181 | rComposeRing(LL, R); // Ring!? |
---|
2182 | } |
---|
2183 | else |
---|
2184 | #endif |
---|
2185 | if (LL->nr < 3) |
---|
2186 | rComposeC(LL,R); // R, long_R, long_C |
---|
2187 | else |
---|
2188 | { |
---|
2189 | if (LL->m[0].Typ()==INT_CMD) |
---|
2190 | { |
---|
2191 | int ch = (int)(long)LL->m[0].Data(); |
---|
2192 | while ((ch!=fftable[is_gf_char]) && (fftable[is_gf_char])) is_gf_char++; |
---|
2193 | if (fftable[is_gf_char]==0) is_gf_char=-1; |
---|
2194 | |
---|
2195 | if(is_gf_char!= -1) |
---|
2196 | { |
---|
2197 | GFInfo param; |
---|
2198 | |
---|
2199 | param.GFChar = ch; |
---|
2200 | param.GFDegree = 1; |
---|
2201 | param.GFPar_name = (const char*)(((lists)(LL->m[1].Data()))->m[0].Data()); |
---|
2202 | |
---|
2203 | // nfInitChar should be able to handle the case when ch is in fftables! |
---|
2204 | R->cf = nInitChar(n_GF, (void*)¶m); |
---|
2205 | } |
---|
2206 | } |
---|
2207 | |
---|
2208 | if( R->cf == NULL ) |
---|
2209 | { |
---|
2210 | ring extRing = rCompose((lists)L->m[0].Data(),FALSE); |
---|
2211 | |
---|
2212 | if (extRing==NULL) |
---|
2213 | { |
---|
2214 | WerrorS("could not create the specified coefficient field"); |
---|
2215 | goto rCompose_err; |
---|
2216 | } |
---|
2217 | |
---|
2218 | if( extRing->qideal != NULL ) // Algebraic extension |
---|
2219 | { |
---|
2220 | AlgExtInfo extParam; |
---|
2221 | |
---|
2222 | extParam.r = extRing; |
---|
2223 | |
---|
2224 | R->cf = nInitChar(n_algExt, (void*)&extParam); |
---|
2225 | } |
---|
2226 | else // Transcendental extension |
---|
2227 | { |
---|
2228 | TransExtInfo extParam; |
---|
2229 | extParam.r = extRing; |
---|
2230 | assume( extRing->qideal == NULL ); |
---|
2231 | |
---|
2232 | R->cf = nInitChar(n_transExt, &extParam); |
---|
2233 | } |
---|
2234 | } |
---|
2235 | } |
---|
2236 | } |
---|
2237 | else |
---|
2238 | { |
---|
2239 | WerrorS("coefficient field must be described by `int` or `list`"); |
---|
2240 | goto rCompose_err; |
---|
2241 | } |
---|
2242 | |
---|
2243 | if( R->cf == NULL ) |
---|
2244 | { |
---|
2245 | WerrorS("could not create coefficient field described by the input!"); |
---|
2246 | goto rCompose_err; |
---|
2247 | } |
---|
2248 | |
---|
2249 | // ------------------------- VARS --------------------------- |
---|
2250 | if (L->m[1].Typ()==LIST_CMD) |
---|
2251 | { |
---|
2252 | lists v=(lists)L->m[1].Data(); |
---|
2253 | R->N = v->nr+1; |
---|
2254 | R->names = (char **)omAlloc0(R->N * sizeof(char_ptr)); |
---|
2255 | int i; |
---|
2256 | for(i=0;i<R->N;i++) |
---|
2257 | { |
---|
2258 | if (v->m[i].Typ()==STRING_CMD) |
---|
2259 | R->names[i]=omStrDup((char *)v->m[i].Data()); |
---|
2260 | else if (v->m[i].Typ()==POLY_CMD) |
---|
2261 | { |
---|
2262 | poly p=(poly)v->m[i].Data(); |
---|
2263 | int nr=pIsPurePower(p); |
---|
2264 | if (nr>0) |
---|
2265 | R->names[i]=omStrDup(currRing->names[nr-1]); |
---|
2266 | else |
---|
2267 | { |
---|
2268 | Werror("var name %d must be a string or a ring variable",i+1); |
---|
2269 | goto rCompose_err; |
---|
2270 | } |
---|
2271 | } |
---|
2272 | else |
---|
2273 | { |
---|
2274 | Werror("var name %d must be `string`",i+1); |
---|
2275 | goto rCompose_err; |
---|
2276 | } |
---|
2277 | } |
---|
2278 | } |
---|
2279 | else |
---|
2280 | { |
---|
2281 | WerrorS("variable must be given as `list`"); |
---|
2282 | goto rCompose_err; |
---|
2283 | } |
---|
2284 | // ------------------------ ORDER ------------------------------ |
---|
2285 | if (L->m[2].Typ()==LIST_CMD) |
---|
2286 | { |
---|
2287 | lists v=(lists)L->m[2].Data(); |
---|
2288 | int n= v->nr+2; |
---|
2289 | int j; |
---|
2290 | // initialize fields of R |
---|
2291 | R->order=(int *)omAlloc0(n*sizeof(int)); |
---|
2292 | R->block0=(int *)omAlloc0(n*sizeof(int)); |
---|
2293 | R->block1=(int *)omAlloc0(n*sizeof(int)); |
---|
2294 | R->wvhdl=(int**)omAlloc0(n*sizeof(int_ptr)); |
---|
2295 | // init order, so that rBlocks works correctly |
---|
2296 | for (j=0; j < n-1; j++) |
---|
2297 | R->order[j] = (int) ringorder_unspec; |
---|
2298 | // orderings |
---|
2299 | R->OrdSgn=1; |
---|
2300 | for(j=0;j<n-1;j++) |
---|
2301 | { |
---|
2302 | // todo: a(..), M |
---|
2303 | if (v->m[j].Typ()!=LIST_CMD) |
---|
2304 | { |
---|
2305 | WerrorS("ordering must be list of lists"); |
---|
2306 | goto rCompose_err; |
---|
2307 | } |
---|
2308 | lists vv=(lists)v->m[j].Data(); |
---|
2309 | if ((vv->nr!=1) |
---|
2310 | || (vv->m[0].Typ()!=STRING_CMD) |
---|
2311 | || ((vv->m[1].Typ()!=INTVEC_CMD) && (vv->m[1].Typ()!=INT_CMD))) |
---|
2312 | { |
---|
2313 | WerrorS("ordering name must be a (string,intvec)"); |
---|
2314 | goto rCompose_err; |
---|
2315 | } |
---|
2316 | R->order[j]=rOrderName(omStrDup((char*)vv->m[0].Data())); // assume STRING |
---|
2317 | |
---|
2318 | if (j==0) R->block0[0]=1; |
---|
2319 | else |
---|
2320 | { |
---|
2321 | int jj=j-1; |
---|
2322 | while((jj>=0) |
---|
2323 | && ((R->order[jj]== ringorder_a) |
---|
2324 | || (R->order[jj]== ringorder_aa) |
---|
2325 | || (R->order[jj]== ringorder_am) |
---|
2326 | || (R->order[jj]== ringorder_c) |
---|
2327 | || (R->order[jj]== ringorder_C) |
---|
2328 | || (R->order[jj]== ringorder_s) |
---|
2329 | || (R->order[jj]== ringorder_S) |
---|
2330 | )) |
---|
2331 | { |
---|
2332 | //Print("jj=%, skip %s\n",rSimpleOrdStr(R->order[jj])); |
---|
2333 | jj--; |
---|
2334 | } |
---|
2335 | if (jj<0) R->block0[j]=1; |
---|
2336 | else R->block0[j]=R->block1[jj]+1; |
---|
2337 | } |
---|
2338 | intvec *iv; |
---|
2339 | if (vv->m[1].Typ()==INT_CMD) |
---|
2340 | iv=new intvec((int)(long)vv->m[1].Data(),(int)(long)vv->m[1].Data()); |
---|
2341 | else |
---|
2342 | iv=ivCopy((intvec*)vv->m[1].Data()); //assume INTVEC |
---|
2343 | int iv_len=iv->length(); |
---|
2344 | R->block1[j]=si_max(R->block0[j],R->block0[j]+iv_len-1); |
---|
2345 | if (R->block1[j]>R->N) |
---|
2346 | { |
---|
2347 | R->block1[j]=R->N; |
---|
2348 | iv_len=R->block1[j]-R->block0[j]+1; |
---|
2349 | } |
---|
2350 | //Print("block %d from %d to %d\n",j,R->block0[j], R->block1[j]); |
---|
2351 | int i; |
---|
2352 | switch (R->order[j]) |
---|
2353 | { |
---|
2354 | case ringorder_ws: |
---|
2355 | case ringorder_Ws: |
---|
2356 | R->OrdSgn=-1; |
---|
2357 | case ringorder_aa: |
---|
2358 | case ringorder_a: |
---|
2359 | case ringorder_wp: |
---|
2360 | case ringorder_Wp: |
---|
2361 | R->wvhdl[j] =( int *)omAlloc(iv_len*sizeof(int)); |
---|
2362 | for (i=0; i<iv_len;i++) |
---|
2363 | { |
---|
2364 | R->wvhdl[j][i]=(*iv)[i]; |
---|
2365 | } |
---|
2366 | break; |
---|
2367 | case ringorder_am: |
---|
2368 | R->wvhdl[j] =( int *)omAlloc((iv->length()+1)*sizeof(int)); |
---|
2369 | for (i=0; i<iv_len;i++) |
---|
2370 | { |
---|
2371 | R->wvhdl[j][i]=(*iv)[i]; |
---|
2372 | } |
---|
2373 | R->wvhdl[j][i]=iv->length() - iv_len; |
---|
2374 | //printf("ivlen:%d,iv->len:%d,mod:%d\n",iv_len,iv->length(),R->wvhdl[j][i]); |
---|
2375 | for (; i<iv->length(); i++) |
---|
2376 | { |
---|
2377 | R->wvhdl[j][i+1]=(*iv)[i]; |
---|
2378 | } |
---|
2379 | break; |
---|
2380 | case ringorder_M: |
---|
2381 | R->wvhdl[j] =( int *)omAlloc((iv->length())*sizeof(int)); |
---|
2382 | for (i=0; i<iv->length();i++) R->wvhdl[j][i]=(*iv)[i]; |
---|
2383 | R->block1[j]=si_max(R->block0[j],R->block0[j]+(int)sqrt((double)(iv->length()-1))); |
---|
2384 | if (R->block1[j]>R->N) |
---|
2385 | { |
---|
2386 | WerrorS("ordering matrix too big"); |
---|
2387 | goto rCompose_err; |
---|
2388 | } |
---|
2389 | break; |
---|
2390 | case ringorder_ls: |
---|
2391 | case ringorder_ds: |
---|
2392 | case ringorder_Ds: |
---|
2393 | case ringorder_rs: |
---|
2394 | R->OrdSgn=-1; |
---|
2395 | case ringorder_lp: |
---|
2396 | case ringorder_dp: |
---|
2397 | case ringorder_Dp: |
---|
2398 | case ringorder_rp: |
---|
2399 | break; |
---|
2400 | case ringorder_S: |
---|
2401 | break; |
---|
2402 | case ringorder_c: |
---|
2403 | case ringorder_C: |
---|
2404 | R->block1[j]=R->block0[j]=0; |
---|
2405 | break; |
---|
2406 | |
---|
2407 | case ringorder_s: |
---|
2408 | break; |
---|
2409 | |
---|
2410 | case ringorder_IS: |
---|
2411 | { |
---|
2412 | R->block1[j] = R->block0[j] = 0; |
---|
2413 | if( iv->length() > 0 ) |
---|
2414 | { |
---|
2415 | const int s = (*iv)[0]; |
---|
2416 | assume( -2 < s && s < 2 ); |
---|
2417 | R->block1[j] = R->block0[j] = s; |
---|
2418 | } |
---|
2419 | break; |
---|
2420 | } |
---|
2421 | case 0: |
---|
2422 | case ringorder_unspec: |
---|
2423 | break; |
---|
2424 | } |
---|
2425 | delete iv; |
---|
2426 | } |
---|
2427 | // sanity check |
---|
2428 | j=n-2; |
---|
2429 | if ((R->order[j]==ringorder_c) |
---|
2430 | || (R->order[j]==ringorder_C) |
---|
2431 | || (R->order[j]==ringorder_unspec)) j--; |
---|
2432 | if (R->block1[j] != R->N) |
---|
2433 | { |
---|
2434 | if (((R->order[j]==ringorder_dp) || |
---|
2435 | (R->order[j]==ringorder_ds) || |
---|
2436 | (R->order[j]==ringorder_Dp) || |
---|
2437 | (R->order[j]==ringorder_Ds) || |
---|
2438 | (R->order[j]==ringorder_rp) || |
---|
2439 | (R->order[j]==ringorder_rs) || |
---|
2440 | (R->order[j]==ringorder_lp) || |
---|
2441 | (R->order[j]==ringorder_ls)) |
---|
2442 | && |
---|
2443 | R->block0[j] <= R->N) |
---|
2444 | { |
---|
2445 | R->block1[j] = R->N; |
---|
2446 | } |
---|
2447 | else |
---|
2448 | { |
---|
2449 | Werror("ordering incomplete: size (%d) should be %d",R->block1[j],R->N); |
---|
2450 | goto rCompose_err; |
---|
2451 | } |
---|
2452 | } |
---|
2453 | if (check_comp) |
---|
2454 | { |
---|
2455 | BOOLEAN comp_order=FALSE; |
---|
2456 | int jj; |
---|
2457 | for(jj=0;jj<n;jj++) |
---|
2458 | { |
---|
2459 | if ((R->order[jj]==ringorder_c) || |
---|
2460 | (R->order[jj]==ringorder_C)) { comp_order=TRUE; break; } |
---|
2461 | } |
---|
2462 | if (!comp_order) |
---|
2463 | { |
---|
2464 | R->order=(int*)omRealloc0Size(R->order,n*sizeof(int),(n+1)*sizeof(int)); |
---|
2465 | R->block0=(int*)omRealloc0Size(R->block0,n*sizeof(int),(n+1)*sizeof(int)); |
---|
2466 | R->block1=(int*)omRealloc0Size(R->block1,n*sizeof(int),(n+1)*sizeof(int)); |
---|
2467 | R->wvhdl=(int**)omRealloc0Size(R->wvhdl,n*sizeof(int_ptr),(n+1)*sizeof(int_ptr)); |
---|
2468 | R->order[n-1]=ringorder_C; |
---|
2469 | R->block0[n-1]=0; |
---|
2470 | R->block1[n-1]=0; |
---|
2471 | R->wvhdl[n-1]=NULL; |
---|
2472 | n++; |
---|
2473 | } |
---|
2474 | } |
---|
2475 | } |
---|
2476 | else |
---|
2477 | { |
---|
2478 | WerrorS("ordering must be given as `list`"); |
---|
2479 | goto rCompose_err; |
---|
2480 | } |
---|
2481 | |
---|
2482 | // ------------------------ ??????? -------------------- |
---|
2483 | |
---|
2484 | rRenameVars(R); |
---|
2485 | rComplete(R); |
---|
2486 | |
---|
2487 | #ifdef HAVE_RINGS |
---|
2488 | // currently, coefficients which are ring elements require a global ordering: |
---|
2489 | if (rField_is_Ring(R) && (R->OrdSgn==-1)) |
---|
2490 | { |
---|
2491 | WerrorS("global ordering required for these coefficients"); |
---|
2492 | goto rCompose_err; |
---|
2493 | } |
---|
2494 | #endif |
---|
2495 | |
---|
2496 | |
---|
2497 | // ------------------------ Q-IDEAL ------------------------ |
---|
2498 | |
---|
2499 | if (L->m[3].Typ()==IDEAL_CMD) |
---|
2500 | { |
---|
2501 | ideal q=(ideal)L->m[3].Data(); |
---|
2502 | if (q->m[0]!=NULL) |
---|
2503 | { |
---|
2504 | if (R->cf != currRing->cf) //->cf->ch!=currRing->cf->ch) |
---|
2505 | { |
---|
2506 | #if 0 |
---|
2507 | WerrorS("coefficient fields must be equal if q-ideal !=0"); |
---|
2508 | goto rCompose_err; |
---|
2509 | #else |
---|
2510 | ring orig_ring=currRing; |
---|
2511 | rChangeCurrRing(R); |
---|
2512 | int *perm=NULL; |
---|
2513 | int *par_perm=NULL; |
---|
2514 | int par_perm_size=0; |
---|
2515 | nMapFunc nMap; |
---|
2516 | |
---|
2517 | if ((nMap=nSetMap(orig_ring->cf))==NULL) |
---|
2518 | { |
---|
2519 | if (rEqual(orig_ring,currRing)) |
---|
2520 | { |
---|
2521 | nMap=n_SetMap(currRing->cf, currRing->cf); |
---|
2522 | } |
---|
2523 | else |
---|
2524 | // Allow imap/fetch to be make an exception only for: |
---|
2525 | if ( (rField_is_Q_a(orig_ring) && // Q(a..) -> Q(a..) || Q || Zp || Zp(a) |
---|
2526 | (rField_is_Q(currRing) || rField_is_Q_a(currRing) || |
---|
2527 | (rField_is_Zp(currRing) || rField_is_Zp_a(currRing)))) |
---|
2528 | || |
---|
2529 | (rField_is_Zp_a(orig_ring) && // Zp(a..) -> Zp(a..) || Zp |
---|
2530 | (rField_is_Zp(currRing, rInternalChar(orig_ring)) || |
---|
2531 | rField_is_Zp_a(currRing, rInternalChar(orig_ring)))) ) |
---|
2532 | { |
---|
2533 | par_perm_size=rPar(orig_ring); |
---|
2534 | |
---|
2535 | // if ((orig_ring->minpoly != NULL) || (orig_ring->qideal != NULL)) |
---|
2536 | // naSetChar(rInternalChar(orig_ring),orig_ring); |
---|
2537 | // else ntSetChar(rInternalChar(orig_ring),orig_ring); |
---|
2538 | |
---|
2539 | nSetChar(currRing->cf); |
---|
2540 | } |
---|
2541 | else |
---|
2542 | { |
---|
2543 | WerrorS("coefficient fields must be equal if q-ideal !=0"); |
---|
2544 | goto rCompose_err; |
---|
2545 | } |
---|
2546 | } |
---|
2547 | perm=(int *)omAlloc0((orig_ring->N+1)*sizeof(int)); |
---|
2548 | if (par_perm_size!=0) |
---|
2549 | par_perm=(int *)omAlloc0(par_perm_size*sizeof(int)); |
---|
2550 | int i; |
---|
2551 | #if 0 |
---|
2552 | // use imap: |
---|
2553 | maFindPerm(orig_ring->names,orig_ring->N,orig_ring->parameter,orig_ring->P, |
---|
2554 | currRing->names,currRing->N,currRing->parameter, currRing->P, |
---|
2555 | perm,par_perm, currRing->ch); |
---|
2556 | #else |
---|
2557 | // use fetch |
---|
2558 | if ((rPar(orig_ring)>0) && (rPar(currRing)==0)) |
---|
2559 | { |
---|
2560 | for(i=si_min(rPar(orig_ring),rVar(currRing))-1;i>=0;i--) par_perm[i]=i+1; |
---|
2561 | } |
---|
2562 | else if (par_perm_size!=0) |
---|
2563 | for(i=si_min(rPar(orig_ring),rPar(currRing))-1;i>=0;i--) par_perm[i]=-(i+1); |
---|
2564 | for(i=si_min(orig_ring->N,rVar(currRing));i>0;i--) perm[i]=i; |
---|
2565 | #endif |
---|
2566 | ideal dest_id=idInit(IDELEMS(q),1); |
---|
2567 | for(i=IDELEMS(q)-1; i>=0; i--) |
---|
2568 | { |
---|
2569 | dest_id->m[i]=p_PermPoly(q->m[i],perm,orig_ring, currRing,nMap, |
---|
2570 | par_perm,par_perm_size); |
---|
2571 | // PrintS("map:");pWrite(dest_id->m[i]);PrintLn(); |
---|
2572 | pTest(dest_id->m[i]); |
---|
2573 | } |
---|
2574 | R->qideal=dest_id; |
---|
2575 | if (perm!=NULL) |
---|
2576 | omFreeSize((ADDRESS)perm,(orig_ring->N+1)*sizeof(int)); |
---|
2577 | if (par_perm!=NULL) |
---|
2578 | omFreeSize((ADDRESS)par_perm,par_perm_size*sizeof(int)); |
---|
2579 | rChangeCurrRing(orig_ring); |
---|
2580 | #endif |
---|
2581 | } |
---|
2582 | else |
---|
2583 | R->qideal=idrCopyR(q,currRing,R); |
---|
2584 | } |
---|
2585 | } |
---|
2586 | else |
---|
2587 | { |
---|
2588 | WerrorS("q-ideal must be given as `ideal`"); |
---|
2589 | goto rCompose_err; |
---|
2590 | } |
---|
2591 | |
---|
2592 | |
---|
2593 | // --------------------------------------------------------------- |
---|
2594 | #ifdef HAVE_PLURAL |
---|
2595 | if (L->nr==5) |
---|
2596 | { |
---|
2597 | if (nc_CallPlural((matrix)L->m[4].Data(), |
---|
2598 | (matrix)L->m[5].Data(), |
---|
2599 | NULL,NULL, |
---|
2600 | R, |
---|
2601 | true, // !!! |
---|
2602 | true, false, |
---|
2603 | currRing, FALSE)) goto rCompose_err; |
---|
2604 | // takes care about non-comm. quotient! i.e. calls "nc_SetupQuotient" due to last true |
---|
2605 | } |
---|
2606 | #endif |
---|
2607 | return R; |
---|
2608 | |
---|
2609 | rCompose_err: |
---|
2610 | if (R->N>0) |
---|
2611 | { |
---|
2612 | int i; |
---|
2613 | if (R->names!=NULL) |
---|
2614 | { |
---|
2615 | i=R->N-1; |
---|
2616 | while (i>=0) { if (R->names[i]!=NULL) omFree(R->names[i]); i--; } |
---|
2617 | omFree(R->names); |
---|
2618 | } |
---|
2619 | } |
---|
2620 | if (R->order!=NULL) omFree(R->order); |
---|
2621 | if (R->block0!=NULL) omFree(R->block0); |
---|
2622 | if (R->block1!=NULL) omFree(R->block1); |
---|
2623 | if (R->wvhdl!=NULL) omFree(R->wvhdl); |
---|
2624 | omFree(R); |
---|
2625 | return NULL; |
---|
2626 | } |
---|
2627 | |
---|
2628 | // from matpol.cc |
---|
2629 | |
---|
2630 | /*2 |
---|
2631 | * compute the jacobi matrix of an ideal |
---|
2632 | */ |
---|
2633 | BOOLEAN mpJacobi(leftv res,leftv a) |
---|
2634 | { |
---|
2635 | int i,j; |
---|
2636 | matrix result; |
---|
2637 | ideal id=(ideal)a->Data(); |
---|
2638 | |
---|
2639 | result =mpNew(IDELEMS(id),rVar(currRing)); |
---|
2640 | for (i=1; i<=IDELEMS(id); i++) |
---|
2641 | { |
---|
2642 | for (j=1; j<=rVar(currRing); j++) |
---|
2643 | { |
---|
2644 | MATELEM(result,i,j) = pDiff(id->m[i-1],j); |
---|
2645 | } |
---|
2646 | } |
---|
2647 | res->data=(char *)result; |
---|
2648 | return FALSE; |
---|
2649 | } |
---|
2650 | |
---|
2651 | /*2 |
---|
2652 | * returns the Koszul-matrix of degree d of a vectorspace with dimension n |
---|
2653 | * uses the first n entrees of id, if id <> NULL |
---|
2654 | */ |
---|
2655 | BOOLEAN mpKoszul(leftv res,leftv c/*ip*/, leftv b/*in*/, leftv id) |
---|
2656 | { |
---|
2657 | int n=(int)(long)b->Data(); |
---|
2658 | int d=(int)(long)c->Data(); |
---|
2659 | int k,l,sign,row,col; |
---|
2660 | matrix result; |
---|
2661 | ideal temp; |
---|
2662 | BOOLEAN bo; |
---|
2663 | poly p; |
---|
2664 | |
---|
2665 | if ((d>n) || (d<1) || (n<1)) |
---|
2666 | { |
---|
2667 | res->data=(char *)mpNew(1,1); |
---|
2668 | return FALSE; |
---|
2669 | } |
---|
2670 | int *choise = (int*)omAlloc(d*sizeof(int)); |
---|
2671 | if (id==NULL) |
---|
2672 | temp=idMaxIdeal(1); |
---|
2673 | else |
---|
2674 | temp=(ideal)id->Data(); |
---|
2675 | |
---|
2676 | k = binom(n,d); |
---|
2677 | l = k*d; |
---|
2678 | l /= n-d+1; |
---|
2679 | result =mpNew(l,k); |
---|
2680 | col = 1; |
---|
2681 | idInitChoise(d,1,n,&bo,choise); |
---|
2682 | while (!bo) |
---|
2683 | { |
---|
2684 | sign = 1; |
---|
2685 | for (l=1;l<=d;l++) |
---|
2686 | { |
---|
2687 | if (choise[l-1]<=IDELEMS(temp)) |
---|
2688 | { |
---|
2689 | p = pCopy(temp->m[choise[l-1]-1]); |
---|
2690 | if (sign == -1) p = pNeg(p); |
---|
2691 | sign *= -1; |
---|
2692 | row = idGetNumberOfChoise(l-1,d,1,n,choise); |
---|
2693 | MATELEM(result,row,col) = p; |
---|
2694 | } |
---|
2695 | } |
---|
2696 | col++; |
---|
2697 | idGetNextChoise(d,n,&bo,choise); |
---|
2698 | } |
---|
2699 | if (id==NULL) idDelete(&temp); |
---|
2700 | |
---|
2701 | res->data=(char *)result; |
---|
2702 | return FALSE; |
---|
2703 | } |
---|
2704 | |
---|
2705 | // from syz1.cc |
---|
2706 | /*2 |
---|
2707 | * read out the Betti numbers from resolution |
---|
2708 | * (interpreter interface) |
---|
2709 | */ |
---|
2710 | BOOLEAN syBetti2(leftv res, leftv u, leftv w) |
---|
2711 | { |
---|
2712 | syStrategy syzstr=(syStrategy)u->Data(); |
---|
2713 | |
---|
2714 | BOOLEAN minim=(int)(long)w->Data(); |
---|
2715 | int row_shift=0; |
---|
2716 | int add_row_shift=0; |
---|
2717 | intvec *weights=NULL; |
---|
2718 | intvec *ww=(intvec *)atGet(u,"isHomog",INTVEC_CMD); |
---|
2719 | if (ww!=NULL) |
---|
2720 | { |
---|
2721 | weights=ivCopy(ww); |
---|
2722 | add_row_shift = ww->min_in(); |
---|
2723 | (*weights) -= add_row_shift; |
---|
2724 | } |
---|
2725 | |
---|
2726 | res->data=(void *)syBettiOfComputation(syzstr,minim,&row_shift,weights); |
---|
2727 | //row_shift += add_row_shift; |
---|
2728 | //Print("row_shift=%d, add_row_shift=%d\n",row_shift,add_row_shift); |
---|
2729 | atSet(res,omStrDup("rowShift"),(void*)add_row_shift,INT_CMD); |
---|
2730 | |
---|
2731 | return FALSE; |
---|
2732 | } |
---|
2733 | BOOLEAN syBetti1(leftv res, leftv u) |
---|
2734 | { |
---|
2735 | sleftv tmp; |
---|
2736 | memset(&tmp,0,sizeof(tmp)); |
---|
2737 | tmp.rtyp=INT_CMD; |
---|
2738 | tmp.data=(void *)1; |
---|
2739 | return syBetti2(res,u,&tmp); |
---|
2740 | } |
---|
2741 | |
---|
2742 | /*3 |
---|
2743 | * converts a resolution into a list of modules |
---|
2744 | */ |
---|
2745 | lists syConvRes(syStrategy syzstr,BOOLEAN toDel,int add_row_shift) |
---|
2746 | { |
---|
2747 | resolvente fullres = syzstr->fullres; |
---|
2748 | resolvente minres = syzstr->minres; |
---|
2749 | |
---|
2750 | const int length = syzstr->length; |
---|
2751 | |
---|
2752 | if ((fullres==NULL) && (minres==NULL)) |
---|
2753 | { |
---|
2754 | if (syzstr->hilb_coeffs==NULL) |
---|
2755 | { // La Scala |
---|
2756 | fullres = syReorder(syzstr->res, length, syzstr); |
---|
2757 | } |
---|
2758 | else |
---|
2759 | { // HRES |
---|
2760 | minres = syReorder(syzstr->orderedRes, length, syzstr); |
---|
2761 | syKillEmptyEntres(minres, length); |
---|
2762 | } |
---|
2763 | } |
---|
2764 | |
---|
2765 | resolvente tr; |
---|
2766 | int typ0=IDEAL_CMD; |
---|
2767 | |
---|
2768 | if (minres!=NULL) |
---|
2769 | tr = minres; |
---|
2770 | else |
---|
2771 | tr = fullres; |
---|
2772 | |
---|
2773 | resolvente trueres=NULL; intvec ** w=NULL; |
---|
2774 | |
---|
2775 | if (length>0) |
---|
2776 | { |
---|
2777 | trueres = (resolvente)omAlloc0((length)*sizeof(ideal)); |
---|
2778 | for (int i=(length)-1;i>=0;i--) |
---|
2779 | { |
---|
2780 | if (tr[i]!=NULL) |
---|
2781 | { |
---|
2782 | trueres[i] = idCopy(tr[i]); |
---|
2783 | } |
---|
2784 | } |
---|
2785 | if ( id_RankFreeModule(trueres[0], currRing) > 0) |
---|
2786 | typ0 = MODUL_CMD; |
---|
2787 | if (syzstr->weights!=NULL) |
---|
2788 | { |
---|
2789 | w = (intvec**)omAlloc0(length*sizeof(intvec*)); |
---|
2790 | for (int i=length-1;i>=0;i--) |
---|
2791 | { |
---|
2792 | if (syzstr->weights[i]!=NULL) w[i] = ivCopy(syzstr->weights[i]); |
---|
2793 | } |
---|
2794 | } |
---|
2795 | } |
---|
2796 | |
---|
2797 | lists li = liMakeResolv(trueres, length, syzstr->list_length,typ0, |
---|
2798 | w, add_row_shift); |
---|
2799 | |
---|
2800 | if (w != NULL) omFreeSize(w, length*sizeof(intvec*)); |
---|
2801 | |
---|
2802 | if (toDel) |
---|
2803 | syKillComputation(syzstr); |
---|
2804 | else |
---|
2805 | { |
---|
2806 | if( fullres != NULL && syzstr->fullres == NULL ) |
---|
2807 | syzstr->fullres = fullres; |
---|
2808 | |
---|
2809 | if( minres != NULL && syzstr->minres == NULL ) |
---|
2810 | syzstr->minres = minres; |
---|
2811 | } |
---|
2812 | |
---|
2813 | return li; |
---|
2814 | |
---|
2815 | |
---|
2816 | } |
---|
2817 | |
---|
2818 | /*3 |
---|
2819 | * converts a list of modules into a resolution |
---|
2820 | */ |
---|
2821 | syStrategy syConvList(lists li,BOOLEAN toDel) |
---|
2822 | { |
---|
2823 | int typ0; |
---|
2824 | syStrategy result=(syStrategy)omAlloc0(sizeof(ssyStrategy)); |
---|
2825 | |
---|
2826 | resolvente fr = liFindRes(li,&(result->length),&typ0,&(result->weights)); |
---|
2827 | if (fr != NULL) |
---|
2828 | { |
---|
2829 | |
---|
2830 | result->fullres = (resolvente)omAlloc0((result->length+1)*sizeof(ideal)); |
---|
2831 | for (int i=result->length-1;i>=0;i--) |
---|
2832 | { |
---|
2833 | if (fr[i]!=NULL) |
---|
2834 | result->fullres[i] = idCopy(fr[i]); |
---|
2835 | } |
---|
2836 | result->list_length=result->length; |
---|
2837 | omFreeSize((ADDRESS)fr,(result->length)*sizeof(ideal)); |
---|
2838 | } |
---|
2839 | else |
---|
2840 | { |
---|
2841 | omFreeSize(result, sizeof(ssyStrategy)); |
---|
2842 | result = NULL; |
---|
2843 | } |
---|
2844 | if (toDel) li->Clean(); |
---|
2845 | return result; |
---|
2846 | } |
---|
2847 | |
---|
2848 | /*3 |
---|
2849 | * converts a list of modules into a minimal resolution |
---|
2850 | */ |
---|
2851 | syStrategy syForceMin(lists li) |
---|
2852 | { |
---|
2853 | int typ0; |
---|
2854 | syStrategy result=(syStrategy)omAlloc0(sizeof(ssyStrategy)); |
---|
2855 | |
---|
2856 | resolvente fr = liFindRes(li,&(result->length),&typ0); |
---|
2857 | result->minres = (resolvente)omAlloc0((result->length+1)*sizeof(ideal)); |
---|
2858 | for (int i=result->length-1;i>=0;i--) |
---|
2859 | { |
---|
2860 | if (fr[i]!=NULL) |
---|
2861 | result->minres[i] = idCopy(fr[i]); |
---|
2862 | } |
---|
2863 | omFreeSize((ADDRESS)fr,(result->length)*sizeof(ideal)); |
---|
2864 | return result; |
---|
2865 | } |
---|
2866 | // from weight.cc |
---|
2867 | BOOLEAN kWeight(leftv res,leftv id) |
---|
2868 | { |
---|
2869 | ideal F=(ideal)id->Data(); |
---|
2870 | intvec * iv = new intvec(rVar(currRing)); |
---|
2871 | polyset s; |
---|
2872 | int sl, n, i; |
---|
2873 | int *x; |
---|
2874 | |
---|
2875 | res->data=(char *)iv; |
---|
2876 | s = F->m; |
---|
2877 | sl = IDELEMS(F) - 1; |
---|
2878 | n = rVar(currRing); |
---|
2879 | double wNsqr = (double)2.0 / (double)n; |
---|
2880 | wFunctional = wFunctionalBuch; |
---|
2881 | x = (int * )omAlloc(2 * (n + 1) * sizeof(int)); |
---|
2882 | wCall(s, sl, x, wNsqr, currRing); |
---|
2883 | for (i = n; i!=0; i--) |
---|
2884 | (*iv)[i-1] = x[i + n + 1]; |
---|
2885 | omFreeSize((ADDRESS)x, 2 * (n + 1) * sizeof(int)); |
---|
2886 | return FALSE; |
---|
2887 | } |
---|
2888 | |
---|
2889 | BOOLEAN kQHWeight(leftv res,leftv v) |
---|
2890 | { |
---|
2891 | res->data=(char *)id_QHomWeight((ideal)v->Data(), currRing); |
---|
2892 | if (res->data==NULL) |
---|
2893 | res->data=(char *)new intvec(rVar(currRing)); |
---|
2894 | return FALSE; |
---|
2895 | } |
---|
2896 | /*==============================================================*/ |
---|
2897 | // from clapsing.cc |
---|
2898 | #if 0 |
---|
2899 | BOOLEAN jjIS_SQR_FREE(leftv res, leftv u) |
---|
2900 | { |
---|
2901 | BOOLEAN b=singclap_factorize((poly)(u->CopyD()), &v, 0); |
---|
2902 | res->data=(void *)b; |
---|
2903 | } |
---|
2904 | #endif |
---|
2905 | |
---|
2906 | BOOLEAN jjRESULTANT(leftv res, leftv u, leftv v, leftv w) |
---|
2907 | { |
---|
2908 | #ifdef HAVE_FACTORY |
---|
2909 | res->data=singclap_resultant((poly)u->CopyD(),(poly)v->CopyD(), |
---|
2910 | (poly)w->CopyD(), currRing); |
---|
2911 | return errorreported; |
---|
2912 | #else |
---|
2913 | Werror("Sorry: not yet re-factored: see libpolys/polys/clapsing.cc"); |
---|
2914 | return FALSE; |
---|
2915 | #endif |
---|
2916 | } |
---|
2917 | |
---|
2918 | BOOLEAN jjCHARSERIES(leftv res, leftv u) |
---|
2919 | { |
---|
2920 | #if defined(HAVE_FACTORY) && defined(HAVE_LIBFAC) |
---|
2921 | res->data=singclap_irrCharSeries((ideal)u->Data(), currRing); |
---|
2922 | return (res->data==NULL); |
---|
2923 | #else |
---|
2924 | Werror("Sorry: not yet re-factored: see libpolys/polys/clapsing.cc"); |
---|
2925 | return FALSE; |
---|
2926 | #endif |
---|
2927 | } |
---|
2928 | |
---|
2929 | // from semic.cc |
---|
2930 | #ifdef HAVE_SPECTRUM |
---|
2931 | |
---|
2932 | // ---------------------------------------------------------------------------- |
---|
2933 | // Initialize a spectrum deep from a singular lists |
---|
2934 | // ---------------------------------------------------------------------------- |
---|
2935 | |
---|
2936 | void copy_deep( spectrum& spec, lists l ) |
---|
2937 | { |
---|
2938 | spec.mu = (int)(long)(l->m[0].Data( )); |
---|
2939 | spec.pg = (int)(long)(l->m[1].Data( )); |
---|
2940 | spec.n = (int)(long)(l->m[2].Data( )); |
---|
2941 | |
---|
2942 | spec.copy_new( spec.n ); |
---|
2943 | |
---|
2944 | intvec *num = (intvec*)l->m[3].Data( ); |
---|
2945 | intvec *den = (intvec*)l->m[4].Data( ); |
---|
2946 | intvec *mul = (intvec*)l->m[5].Data( ); |
---|
2947 | |
---|
2948 | for( int i=0; i<spec.n; i++ ) |
---|
2949 | { |
---|
2950 | spec.s[i] = (Rational)((*num)[i])/(Rational)((*den)[i]); |
---|
2951 | spec.w[i] = (*mul)[i]; |
---|
2952 | } |
---|
2953 | } |
---|
2954 | |
---|
2955 | // ---------------------------------------------------------------------------- |
---|
2956 | // singular lists constructor for spectrum |
---|
2957 | // ---------------------------------------------------------------------------- |
---|
2958 | |
---|
2959 | spectrum /*former spectrum::spectrum ( lists l )*/ |
---|
2960 | spectrumFromList( lists l ) |
---|
2961 | { |
---|
2962 | spectrum result; |
---|
2963 | copy_deep( result, l ); |
---|
2964 | return result; |
---|
2965 | } |
---|
2966 | |
---|
2967 | // ---------------------------------------------------------------------------- |
---|
2968 | // generate a Singular lists from a spectrum |
---|
2969 | // ---------------------------------------------------------------------------- |
---|
2970 | |
---|
2971 | /* former spectrum::thelist ( void )*/ |
---|
2972 | lists getList( spectrum& spec ) |
---|
2973 | { |
---|
2974 | lists L = (lists)omAllocBin( slists_bin); |
---|
2975 | |
---|
2976 | L->Init( 6 ); |
---|
2977 | |
---|
2978 | intvec *num = new intvec( spec.n ); |
---|
2979 | intvec *den = new intvec( spec.n ); |
---|
2980 | intvec *mult = new intvec( spec.n ); |
---|
2981 | |
---|
2982 | for( int i=0; i<spec.n; i++ ) |
---|
2983 | { |
---|
2984 | (*num) [i] = spec.s[i].get_num_si( ); |
---|
2985 | (*den) [i] = spec.s[i].get_den_si( ); |
---|
2986 | (*mult)[i] = spec.w[i]; |
---|
2987 | } |
---|
2988 | |
---|
2989 | L->m[0].rtyp = INT_CMD; // milnor number |
---|
2990 | L->m[1].rtyp = INT_CMD; // geometrical genus |
---|
2991 | L->m[2].rtyp = INT_CMD; // # of spectrum numbers |
---|
2992 | L->m[3].rtyp = INTVEC_CMD; // numerators |
---|
2993 | L->m[4].rtyp = INTVEC_CMD; // denomiantors |
---|
2994 | L->m[5].rtyp = INTVEC_CMD; // multiplicities |
---|
2995 | |
---|
2996 | L->m[0].data = (void*)spec.mu; |
---|
2997 | L->m[1].data = (void*)spec.pg; |
---|
2998 | L->m[2].data = (void*)spec.n; |
---|
2999 | L->m[3].data = (void*)num; |
---|
3000 | L->m[4].data = (void*)den; |
---|
3001 | L->m[5].data = (void*)mult; |
---|
3002 | |
---|
3003 | return L; |
---|
3004 | } |
---|
3005 | // from spectrum.cc |
---|
3006 | // ---------------------------------------------------------------------------- |
---|
3007 | // print out an error message for a spectrum list |
---|
3008 | // ---------------------------------------------------------------------------- |
---|
3009 | |
---|
3010 | typedef enum |
---|
3011 | { |
---|
3012 | semicOK, |
---|
3013 | semicMulNegative, |
---|
3014 | |
---|
3015 | semicListTooShort, |
---|
3016 | semicListTooLong, |
---|
3017 | |
---|
3018 | semicListFirstElementWrongType, |
---|
3019 | semicListSecondElementWrongType, |
---|
3020 | semicListThirdElementWrongType, |
---|
3021 | semicListFourthElementWrongType, |
---|
3022 | semicListFifthElementWrongType, |
---|
3023 | semicListSixthElementWrongType, |
---|
3024 | |
---|
3025 | semicListNNegative, |
---|
3026 | semicListWrongNumberOfNumerators, |
---|
3027 | semicListWrongNumberOfDenominators, |
---|
3028 | semicListWrongNumberOfMultiplicities, |
---|
3029 | |
---|
3030 | semicListMuNegative, |
---|
3031 | semicListPgNegative, |
---|
3032 | semicListNumNegative, |
---|
3033 | semicListDenNegative, |
---|
3034 | semicListMulNegative, |
---|
3035 | |
---|
3036 | semicListNotSymmetric, |
---|
3037 | semicListNotMonotonous, |
---|
3038 | |
---|
3039 | semicListMilnorWrong, |
---|
3040 | semicListPGWrong |
---|
3041 | |
---|
3042 | } semicState; |
---|
3043 | |
---|
3044 | void list_error( semicState state ) |
---|
3045 | { |
---|
3046 | switch( state ) |
---|
3047 | { |
---|
3048 | case semicListTooShort: |
---|
3049 | WerrorS( "the list is too short" ); |
---|
3050 | break; |
---|
3051 | case semicListTooLong: |
---|
3052 | WerrorS( "the list is too long" ); |
---|
3053 | break; |
---|
3054 | |
---|
3055 | case semicListFirstElementWrongType: |
---|
3056 | WerrorS( "first element of the list should be int" ); |
---|
3057 | break; |
---|
3058 | case semicListSecondElementWrongType: |
---|
3059 | WerrorS( "second element of the list should be int" ); |
---|
3060 | break; |
---|
3061 | case semicListThirdElementWrongType: |
---|
3062 | WerrorS( "third element of the list should be int" ); |
---|
3063 | break; |
---|
3064 | case semicListFourthElementWrongType: |
---|
3065 | WerrorS( "fourth element of the list should be intvec" ); |
---|
3066 | break; |
---|
3067 | case semicListFifthElementWrongType: |
---|
3068 | WerrorS( "fifth element of the list should be intvec" ); |
---|
3069 | break; |
---|
3070 | case semicListSixthElementWrongType: |
---|
3071 | WerrorS( "sixth element of the list should be intvec" ); |
---|
3072 | break; |
---|
3073 | |
---|
3074 | case semicListNNegative: |
---|
3075 | WerrorS( "first element of the list should be positive" ); |
---|
3076 | break; |
---|
3077 | case semicListWrongNumberOfNumerators: |
---|
3078 | WerrorS( "wrong number of numerators" ); |
---|
3079 | break; |
---|
3080 | case semicListWrongNumberOfDenominators: |
---|
3081 | WerrorS( "wrong number of denominators" ); |
---|
3082 | break; |
---|
3083 | case semicListWrongNumberOfMultiplicities: |
---|
3084 | WerrorS( "wrong number of multiplicities" ); |
---|
3085 | break; |
---|
3086 | |
---|
3087 | case semicListMuNegative: |
---|
3088 | WerrorS( "the Milnor number should be positive" ); |
---|
3089 | break; |
---|
3090 | case semicListPgNegative: |
---|
3091 | WerrorS( "the geometrical genus should be nonnegative" ); |
---|
3092 | break; |
---|
3093 | case semicListNumNegative: |
---|
3094 | WerrorS( "all numerators should be positive" ); |
---|
3095 | break; |
---|
3096 | case semicListDenNegative: |
---|
3097 | WerrorS( "all denominators should be positive" ); |
---|
3098 | break; |
---|
3099 | case semicListMulNegative: |
---|
3100 | WerrorS( "all multiplicities should be positive" ); |
---|
3101 | break; |
---|
3102 | |
---|
3103 | case semicListNotSymmetric: |
---|
3104 | WerrorS( "it is not symmetric" ); |
---|
3105 | break; |
---|
3106 | case semicListNotMonotonous: |
---|
3107 | WerrorS( "it is not monotonous" ); |
---|
3108 | break; |
---|
3109 | |
---|
3110 | case semicListMilnorWrong: |
---|
3111 | WerrorS( "the Milnor number is wrong" ); |
---|
3112 | break; |
---|
3113 | case semicListPGWrong: |
---|
3114 | WerrorS( "the geometrical genus is wrong" ); |
---|
3115 | break; |
---|
3116 | |
---|
3117 | default: |
---|
3118 | WerrorS( "unspecific error" ); |
---|
3119 | break; |
---|
3120 | } |
---|
3121 | } |
---|
3122 | // ---------------------------------------------------------------------------- |
---|
3123 | // this is the main spectrum computation function |
---|
3124 | // ---------------------------------------------------------------------------- |
---|
3125 | |
---|
3126 | enum spectrumState |
---|
3127 | { |
---|
3128 | spectrumOK, |
---|
3129 | spectrumZero, |
---|
3130 | spectrumBadPoly, |
---|
3131 | spectrumNoSingularity, |
---|
3132 | spectrumNotIsolated, |
---|
3133 | spectrumDegenerate, |
---|
3134 | spectrumWrongRing, |
---|
3135 | spectrumNoHC, |
---|
3136 | spectrumUnspecErr |
---|
3137 | }; |
---|
3138 | |
---|
3139 | // from splist.cc |
---|
3140 | // ---------------------------------------------------------------------------- |
---|
3141 | // Compute the spectrum of a spectrumPolyList |
---|
3142 | // ---------------------------------------------------------------------------- |
---|
3143 | |
---|
3144 | /* former spectrumPolyList::spectrum ( lists*, int) */ |
---|
3145 | spectrumState spectrumStateFromList( spectrumPolyList& speclist, lists *L,int fast ) |
---|
3146 | { |
---|
3147 | spectrumPolyNode **node = &speclist.root; |
---|
3148 | spectrumPolyNode *search; |
---|
3149 | |
---|
3150 | poly f,tmp; |
---|
3151 | int found,cmp; |
---|
3152 | |
---|
3153 | Rational smax( ( fast==0 ? 0 : rVar(currRing) ), |
---|
3154 | ( fast==2 ? 2 : 1 ) ); |
---|
3155 | |
---|
3156 | Rational weight_prev( 0,1 ); |
---|
3157 | |
---|
3158 | int mu = 0; // the milnor number |
---|
3159 | int pg = 0; // the geometrical genus |
---|
3160 | int n = 0; // number of different spectral numbers |
---|
3161 | int z = 0; // number of spectral number equal to smax |
---|
3162 | |
---|
3163 | while( (*node)!=(spectrumPolyNode*)NULL && |
---|
3164 | ( fast==0 || (*node)->weight<=smax ) ) |
---|
3165 | { |
---|
3166 | // --------------------------------------- |
---|
3167 | // determine the first normal form which |
---|
3168 | // contains the monomial node->mon |
---|
3169 | // --------------------------------------- |
---|
3170 | |
---|
3171 | found = FALSE; |
---|
3172 | search = *node; |
---|
3173 | |
---|
3174 | while( search!=(spectrumPolyNode*)NULL && found==FALSE ) |
---|
3175 | { |
---|
3176 | if( search->nf!=(poly)NULL ) |
---|
3177 | { |
---|
3178 | f = search->nf; |
---|
3179 | |
---|
3180 | do |
---|
3181 | { |
---|
3182 | // -------------------------------- |
---|
3183 | // look for (*node)->mon in f |
---|
3184 | // -------------------------------- |
---|
3185 | |
---|
3186 | cmp = pCmp( (*node)->mon,f ); |
---|
3187 | |
---|
3188 | if( cmp<0 ) |
---|
3189 | { |
---|
3190 | f = pNext( f ); |
---|
3191 | } |
---|
3192 | else if( cmp==0 ) |
---|
3193 | { |
---|
3194 | // ----------------------------- |
---|
3195 | // we have found a normal form |
---|
3196 | // ----------------------------- |
---|
3197 | |
---|
3198 | found = TRUE; |
---|
3199 | |
---|
3200 | // normalize coefficient |
---|
3201 | |
---|
3202 | number inv = nInvers( pGetCoeff( f ) ); |
---|
3203 | pMult_nn( search->nf,inv ); |
---|
3204 | nDelete( &inv ); |
---|
3205 | |
---|
3206 | // exchange normal forms |
---|
3207 | |
---|
3208 | tmp = (*node)->nf; |
---|
3209 | (*node)->nf = search->nf; |
---|
3210 | search->nf = tmp; |
---|
3211 | } |
---|
3212 | } |
---|
3213 | while( cmp<0 && f!=(poly)NULL ); |
---|
3214 | } |
---|
3215 | search = search->next; |
---|
3216 | } |
---|
3217 | |
---|
3218 | if( found==FALSE ) |
---|
3219 | { |
---|
3220 | // ------------------------------------------------ |
---|
3221 | // the weight of node->mon is a spectrum number |
---|
3222 | // ------------------------------------------------ |
---|
3223 | |
---|
3224 | mu++; |
---|
3225 | |
---|
3226 | if( (*node)->weight<=(Rational)1 ) pg++; |
---|
3227 | if( (*node)->weight==smax ) z++; |
---|
3228 | if( (*node)->weight>weight_prev ) n++; |
---|
3229 | |
---|
3230 | weight_prev = (*node)->weight; |
---|
3231 | node = &((*node)->next); |
---|
3232 | } |
---|
3233 | else |
---|
3234 | { |
---|
3235 | // ----------------------------------------------- |
---|
3236 | // determine all other normal form which contain |
---|
3237 | // the monomial node->mon |
---|
3238 | // replace for node->mon its normal form |
---|
3239 | // ----------------------------------------------- |
---|
3240 | |
---|
3241 | while( search!=(spectrumPolyNode*)NULL ) |
---|
3242 | { |
---|
3243 | if( search->nf!=(poly)NULL ) |
---|
3244 | { |
---|
3245 | f = search->nf; |
---|
3246 | |
---|
3247 | do |
---|
3248 | { |
---|
3249 | // -------------------------------- |
---|
3250 | // look for (*node)->mon in f |
---|
3251 | // -------------------------------- |
---|
3252 | |
---|
3253 | cmp = pCmp( (*node)->mon,f ); |
---|
3254 | |
---|
3255 | if( cmp<0 ) |
---|
3256 | { |
---|
3257 | f = pNext( f ); |
---|
3258 | } |
---|
3259 | else if( cmp==0 ) |
---|
3260 | { |
---|
3261 | search->nf = pSub( search->nf, |
---|
3262 | ppMult_nn( (*node)->nf,pGetCoeff( f ) ) ); |
---|
3263 | pNorm( search->nf ); |
---|
3264 | } |
---|
3265 | } |
---|
3266 | while( cmp<0 && f!=(poly)NULL ); |
---|
3267 | } |
---|
3268 | search = search->next; |
---|
3269 | } |
---|
3270 | speclist.delete_node( node ); |
---|
3271 | } |
---|
3272 | |
---|
3273 | } |
---|
3274 | |
---|
3275 | // -------------------------------------------------------- |
---|
3276 | // fast computation exploits the symmetry of the spectrum |
---|
3277 | // -------------------------------------------------------- |
---|
3278 | |
---|
3279 | if( fast==2 ) |
---|
3280 | { |
---|
3281 | mu = 2*mu - z; |
---|
3282 | n = ( z > 0 ? 2*n - 1 : 2*n ); |
---|
3283 | } |
---|
3284 | |
---|
3285 | // -------------------------------------------------------- |
---|
3286 | // compute the spectrum numbers with their multiplicities |
---|
3287 | // -------------------------------------------------------- |
---|
3288 | |
---|
3289 | intvec *nom = new intvec( n ); |
---|
3290 | intvec *den = new intvec( n ); |
---|
3291 | intvec *mult = new intvec( n ); |
---|
3292 | |
---|
3293 | int count = 0; |
---|
3294 | int multiplicity = 1; |
---|
3295 | |
---|
3296 | for( search=speclist.root; search!=(spectrumPolyNode*)NULL && |
---|
3297 | ( fast==0 || search->weight<=smax ); |
---|
3298 | search=search->next ) |
---|
3299 | { |
---|
3300 | if( search->next==(spectrumPolyNode*)NULL || |
---|
3301 | search->weight<search->next->weight ) |
---|
3302 | { |
---|
3303 | (*nom) [count] = search->weight.get_num_si( ); |
---|
3304 | (*den) [count] = search->weight.get_den_si( ); |
---|
3305 | (*mult)[count] = multiplicity; |
---|
3306 | |
---|
3307 | multiplicity=1; |
---|
3308 | count++; |
---|
3309 | } |
---|
3310 | else |
---|
3311 | { |
---|
3312 | multiplicity++; |
---|
3313 | } |
---|
3314 | } |
---|
3315 | |
---|
3316 | // -------------------------------------------------------- |
---|
3317 | // fast computation exploits the symmetry of the spectrum |
---|
3318 | // -------------------------------------------------------- |
---|
3319 | |
---|
3320 | if( fast==2 ) |
---|
3321 | { |
---|
3322 | int n1,n2; |
---|
3323 | for( n1=0, n2=n-1; n1<n2; n1++, n2-- ) |
---|
3324 | { |
---|
3325 | (*nom) [n2] = rVar(currRing)*(*den)[n1]-(*nom)[n1]; |
---|
3326 | (*den) [n2] = (*den)[n1]; |
---|
3327 | (*mult)[n2] = (*mult)[n1]; |
---|
3328 | } |
---|
3329 | } |
---|
3330 | |
---|
3331 | // ----------------------------------- |
---|
3332 | // test if the spectrum is symmetric |
---|
3333 | // ----------------------------------- |
---|
3334 | |
---|
3335 | if( fast==0 || fast==1 ) |
---|
3336 | { |
---|
3337 | int symmetric=TRUE; |
---|
3338 | |
---|
3339 | for( int n1=0, n2=n-1 ; n1<n2 && symmetric==TRUE; n1++, n2-- ) |
---|
3340 | { |
---|
3341 | if( (*mult)[n1]!=(*mult)[n2] || |
---|
3342 | (*den) [n1]!= (*den)[n2] || |
---|
3343 | (*nom)[n1]+(*nom)[n2]!=rVar(currRing)*(*den) [n1] ) |
---|
3344 | { |
---|
3345 | symmetric = FALSE; |
---|
3346 | } |
---|
3347 | } |
---|
3348 | |
---|
3349 | if( symmetric==FALSE ) |
---|
3350 | { |
---|
3351 | // --------------------------------------------- |
---|
3352 | // the spectrum is not symmetric => degenerate |
---|
3353 | // principal part |
---|
3354 | // --------------------------------------------- |
---|
3355 | |
---|
3356 | *L = (lists)omAllocBin( slists_bin); |
---|
3357 | (*L)->Init( 1 ); |
---|
3358 | (*L)->m[0].rtyp = INT_CMD; // milnor number |
---|
3359 | (*L)->m[0].data = (void*)mu; |
---|
3360 | |
---|
3361 | return spectrumDegenerate; |
---|
3362 | } |
---|
3363 | } |
---|
3364 | |
---|
3365 | *L = (lists)omAllocBin( slists_bin); |
---|
3366 | |
---|
3367 | (*L)->Init( 6 ); |
---|
3368 | |
---|
3369 | (*L)->m[0].rtyp = INT_CMD; // milnor number |
---|
3370 | (*L)->m[1].rtyp = INT_CMD; // geometrical genus |
---|
3371 | (*L)->m[2].rtyp = INT_CMD; // number of spectrum values |
---|
3372 | (*L)->m[3].rtyp = INTVEC_CMD; // nominators |
---|
3373 | (*L)->m[4].rtyp = INTVEC_CMD; // denomiantors |
---|
3374 | (*L)->m[5].rtyp = INTVEC_CMD; // multiplicities |
---|
3375 | |
---|
3376 | (*L)->m[0].data = (void*)mu; |
---|
3377 | (*L)->m[1].data = (void*)pg; |
---|
3378 | (*L)->m[2].data = (void*)n; |
---|
3379 | (*L)->m[3].data = (void*)nom; |
---|
3380 | (*L)->m[4].data = (void*)den; |
---|
3381 | (*L)->m[5].data = (void*)mult; |
---|
3382 | |
---|
3383 | return spectrumOK; |
---|
3384 | } |
---|
3385 | |
---|
3386 | spectrumState spectrumCompute( poly h,lists *L,int fast ) |
---|
3387 | { |
---|
3388 | int i; |
---|
3389 | |
---|
3390 | #ifdef SPECTRUM_DEBUG |
---|
3391 | #ifdef SPECTRUM_PRINT |
---|
3392 | #ifdef SPECTRUM_IOSTREAM |
---|
3393 | cout << "spectrumCompute\n"; |
---|
3394 | if( fast==0 ) cout << " no optimization" << endl; |
---|
3395 | if( fast==1 ) cout << " weight optimization" << endl; |
---|
3396 | if( fast==2 ) cout << " symmetry optimization" << endl; |
---|
3397 | #else |
---|
3398 | fprintf( stdout,"spectrumCompute\n" ); |
---|
3399 | if( fast==0 ) fprintf( stdout," no optimization\n" ); |
---|
3400 | if( fast==1 ) fprintf( stdout," weight optimization\n" ); |
---|
3401 | if( fast==2 ) fprintf( stdout," symmetry optimization\n" ); |
---|
3402 | #endif |
---|
3403 | #endif |
---|
3404 | #endif |
---|
3405 | |
---|
3406 | // ---------------------- |
---|
3407 | // check if h is zero |
---|
3408 | // ---------------------- |
---|
3409 | |
---|
3410 | if( h==(poly)NULL ) |
---|
3411 | { |
---|
3412 | return spectrumZero; |
---|
3413 | } |
---|
3414 | |
---|
3415 | // ---------------------------------- |
---|
3416 | // check if h has a constant term |
---|
3417 | // ---------------------------------- |
---|
3418 | |
---|
3419 | if( hasConstTerm( h, currRing ) ) |
---|
3420 | { |
---|
3421 | return spectrumBadPoly; |
---|
3422 | } |
---|
3423 | |
---|
3424 | // -------------------------------- |
---|
3425 | // check if h has a linear term |
---|
3426 | // -------------------------------- |
---|
3427 | |
---|
3428 | if( hasLinearTerm( h, currRing ) ) |
---|
3429 | { |
---|
3430 | *L = (lists)omAllocBin( slists_bin); |
---|
3431 | (*L)->Init( 1 ); |
---|
3432 | (*L)->m[0].rtyp = INT_CMD; // milnor number |
---|
3433 | /* (*L)->m[0].data = (void*)0;a -- done by Init */ |
---|
3434 | |
---|
3435 | return spectrumNoSingularity; |
---|
3436 | } |
---|
3437 | |
---|
3438 | // ---------------------------------- |
---|
3439 | // compute the jacobi ideal of (h) |
---|
3440 | // ---------------------------------- |
---|
3441 | |
---|
3442 | ideal J = NULL; |
---|
3443 | J = idInit( rVar(currRing),1 ); |
---|
3444 | |
---|
3445 | #ifdef SPECTRUM_DEBUG |
---|
3446 | #ifdef SPECTRUM_PRINT |
---|
3447 | #ifdef SPECTRUM_IOSTREAM |
---|
3448 | cout << "\n computing the Jacobi ideal...\n"; |
---|
3449 | #else |
---|
3450 | fprintf( stdout,"\n computing the Jacobi ideal...\n" ); |
---|
3451 | #endif |
---|
3452 | #endif |
---|
3453 | #endif |
---|
3454 | |
---|
3455 | for( i=0; i<rVar(currRing); i++ ) |
---|
3456 | { |
---|
3457 | J->m[i] = pDiff( h,i+1); //j ); |
---|
3458 | |
---|
3459 | #ifdef SPECTRUM_DEBUG |
---|
3460 | #ifdef SPECTRUM_PRINT |
---|
3461 | #ifdef SPECTRUM_IOSTREAM |
---|
3462 | cout << " "; |
---|
3463 | #else |
---|
3464 | fprintf( stdout," " ); |
---|
3465 | #endif |
---|
3466 | pWrite( J->m[i] ); |
---|
3467 | #endif |
---|
3468 | #endif |
---|
3469 | } |
---|
3470 | |
---|
3471 | // -------------------------------------------- |
---|
3472 | // compute a standard basis stdJ of jac(h) |
---|
3473 | // -------------------------------------------- |
---|
3474 | |
---|
3475 | #ifdef SPECTRUM_DEBUG |
---|
3476 | #ifdef SPECTRUM_PRINT |
---|
3477 | #ifdef SPECTRUM_IOSTREAM |
---|
3478 | cout << endl; |
---|
3479 | cout << " computing a standard basis..." << endl; |
---|
3480 | #else |
---|
3481 | fprintf( stdout,"\n" ); |
---|
3482 | fprintf( stdout," computing a standard basis...\n" ); |
---|
3483 | #endif |
---|
3484 | #endif |
---|
3485 | #endif |
---|
3486 | |
---|
3487 | ideal stdJ = kStd(J,currQuotient,isNotHomog,NULL); |
---|
3488 | idSkipZeroes( stdJ ); |
---|
3489 | |
---|
3490 | #ifdef SPECTRUM_DEBUG |
---|
3491 | #ifdef SPECTRUM_PRINT |
---|
3492 | for( i=0; i<IDELEMS(stdJ); i++ ) |
---|
3493 | { |
---|
3494 | #ifdef SPECTRUM_IOSTREAM |
---|
3495 | cout << " "; |
---|
3496 | #else |
---|
3497 | fprintf( stdout," " ); |
---|
3498 | #endif |
---|
3499 | |
---|
3500 | pWrite( stdJ->m[i] ); |
---|
3501 | } |
---|
3502 | #endif |
---|
3503 | #endif |
---|
3504 | |
---|
3505 | idDelete( &J ); |
---|
3506 | |
---|
3507 | // ------------------------------------------ |
---|
3508 | // check if the h has a singularity |
---|
3509 | // ------------------------------------------ |
---|
3510 | |
---|
3511 | if( hasOne( stdJ, currRing ) ) |
---|
3512 | { |
---|
3513 | // ------------------------------- |
---|
3514 | // h is smooth in the origin |
---|
3515 | // return only the Milnor number |
---|
3516 | // ------------------------------- |
---|
3517 | |
---|
3518 | *L = (lists)omAllocBin( slists_bin); |
---|
3519 | (*L)->Init( 1 ); |
---|
3520 | (*L)->m[0].rtyp = INT_CMD; // milnor number |
---|
3521 | /* (*L)->m[0].data = (void*)0;a -- done by Init */ |
---|
3522 | |
---|
3523 | return spectrumNoSingularity; |
---|
3524 | } |
---|
3525 | |
---|
3526 | // ------------------------------------------ |
---|
3527 | // check if the singularity h is isolated |
---|
3528 | // ------------------------------------------ |
---|
3529 | |
---|
3530 | for( i=rVar(currRing); i>0; i-- ) |
---|
3531 | { |
---|
3532 | if( hasAxis( stdJ,i, currRing )==FALSE ) |
---|
3533 | { |
---|
3534 | return spectrumNotIsolated; |
---|
3535 | } |
---|
3536 | } |
---|
3537 | |
---|
3538 | // ------------------------------------------ |
---|
3539 | // compute the highest corner hc of stdJ |
---|
3540 | // ------------------------------------------ |
---|
3541 | |
---|
3542 | #ifdef SPECTRUM_DEBUG |
---|
3543 | #ifdef SPECTRUM_PRINT |
---|
3544 | #ifdef SPECTRUM_IOSTREAM |
---|
3545 | cout << "\n computing the highest corner...\n"; |
---|
3546 | #else |
---|
3547 | fprintf( stdout,"\n computing the highest corner...\n" ); |
---|
3548 | #endif |
---|
3549 | #endif |
---|
3550 | #endif |
---|
3551 | |
---|
3552 | poly hc = (poly)NULL; |
---|
3553 | |
---|
3554 | scComputeHC( stdJ,currQuotient, 0,hc ); |
---|
3555 | |
---|
3556 | if( hc!=(poly)NULL ) |
---|
3557 | { |
---|
3558 | pGetCoeff(hc) = nInit(1); |
---|
3559 | |
---|
3560 | for( i=rVar(currRing); i>0; i-- ) |
---|
3561 | { |
---|
3562 | if( pGetExp( hc,i )>0 ) pDecrExp( hc,i ); |
---|
3563 | } |
---|
3564 | pSetm( hc ); |
---|
3565 | } |
---|
3566 | else |
---|
3567 | { |
---|
3568 | return spectrumNoHC; |
---|
3569 | } |
---|
3570 | |
---|
3571 | #ifdef SPECTRUM_DEBUG |
---|
3572 | #ifdef SPECTRUM_PRINT |
---|
3573 | #ifdef SPECTRUM_IOSTREAM |
---|
3574 | cout << " "; |
---|
3575 | #else |
---|
3576 | fprintf( stdout," " ); |
---|
3577 | #endif |
---|
3578 | pWrite( hc ); |
---|
3579 | #endif |
---|
3580 | #endif |
---|
3581 | |
---|
3582 | // ---------------------------------------- |
---|
3583 | // compute the Newton polygon nph of h |
---|
3584 | // ---------------------------------------- |
---|
3585 | |
---|
3586 | #ifdef SPECTRUM_DEBUG |
---|
3587 | #ifdef SPECTRUM_PRINT |
---|
3588 | #ifdef SPECTRUM_IOSTREAM |
---|
3589 | cout << "\n computing the newton polygon...\n"; |
---|
3590 | #else |
---|
3591 | fprintf( stdout,"\n computing the newton polygon...\n" ); |
---|
3592 | #endif |
---|
3593 | #endif |
---|
3594 | #endif |
---|
3595 | |
---|
3596 | newtonPolygon nph( h, currRing ); |
---|
3597 | |
---|
3598 | #ifdef SPECTRUM_DEBUG |
---|
3599 | #ifdef SPECTRUM_PRINT |
---|
3600 | cout << nph; |
---|
3601 | #endif |
---|
3602 | #endif |
---|
3603 | |
---|
3604 | // ----------------------------------------------- |
---|
3605 | // compute the weight corner wc of (stdj,nph) |
---|
3606 | // ----------------------------------------------- |
---|
3607 | |
---|
3608 | #ifdef SPECTRUM_DEBUG |
---|
3609 | #ifdef SPECTRUM_PRINT |
---|
3610 | #ifdef SPECTRUM_IOSTREAM |
---|
3611 | cout << "\n computing the weight corner...\n"; |
---|
3612 | #else |
---|
3613 | fprintf( stdout,"\n computing the weight corner...\n" ); |
---|
3614 | #endif |
---|
3615 | #endif |
---|
3616 | #endif |
---|
3617 | |
---|
3618 | poly wc = ( fast==0 ? pCopy( hc ) : |
---|
3619 | ( fast==1 ? computeWC( nph,(Rational)rVar(currRing), currRing ) : |
---|
3620 | /* fast==2 */computeWC( nph, |
---|
3621 | ((Rational)rVar(currRing))/(Rational)2, currRing ) ) ); |
---|
3622 | |
---|
3623 | #ifdef SPECTRUM_DEBUG |
---|
3624 | #ifdef SPECTRUM_PRINT |
---|
3625 | #ifdef SPECTRUM_IOSTREAM |
---|
3626 | cout << " "; |
---|
3627 | #else |
---|
3628 | fprintf( stdout," " ); |
---|
3629 | #endif |
---|
3630 | pWrite( wc ); |
---|
3631 | #endif |
---|
3632 | #endif |
---|
3633 | |
---|
3634 | // ------------- |
---|
3635 | // compute NF |
---|
3636 | // ------------- |
---|
3637 | |
---|
3638 | #ifdef SPECTRUM_DEBUG |
---|
3639 | #ifdef SPECTRUM_PRINT |
---|
3640 | #ifdef SPECTRUM_IOSTREAM |
---|
3641 | cout << "\n computing NF...\n" << endl; |
---|
3642 | #else |
---|
3643 | fprintf( stdout,"\n computing NF...\n" ); |
---|
3644 | #endif |
---|
3645 | #endif |
---|
3646 | #endif |
---|
3647 | |
---|
3648 | spectrumPolyList NF( &nph ); |
---|
3649 | |
---|
3650 | computeNF( stdJ,hc,wc,&NF, currRing ); |
---|
3651 | |
---|
3652 | #ifdef SPECTRUM_DEBUG |
---|
3653 | #ifdef SPECTRUM_PRINT |
---|
3654 | cout << NF; |
---|
3655 | #ifdef SPECTRUM_IOSTREAM |
---|
3656 | cout << endl; |
---|
3657 | #else |
---|
3658 | fprintf( stdout,"\n" ); |
---|
3659 | #endif |
---|
3660 | #endif |
---|
3661 | #endif |
---|
3662 | |
---|
3663 | // ---------------------------- |
---|
3664 | // compute the spectrum of h |
---|
3665 | // ---------------------------- |
---|
3666 | // spectrumState spectrumStateFromList( spectrumPolyList& speclist, lists *L, int fast ); |
---|
3667 | |
---|
3668 | return spectrumStateFromList(NF, L, fast ); |
---|
3669 | } |
---|
3670 | |
---|
3671 | // ---------------------------------------------------------------------------- |
---|
3672 | // this procedure is called from the interpreter |
---|
3673 | // ---------------------------------------------------------------------------- |
---|
3674 | // first = polynomial |
---|
3675 | // result = list of spectrum numbers |
---|
3676 | // ---------------------------------------------------------------------------- |
---|
3677 | |
---|
3678 | void spectrumPrintError(spectrumState state) |
---|
3679 | { |
---|
3680 | switch( state ) |
---|
3681 | { |
---|
3682 | case spectrumZero: |
---|
3683 | WerrorS( "polynomial is zero" ); |
---|
3684 | break; |
---|
3685 | case spectrumBadPoly: |
---|
3686 | WerrorS( "polynomial has constant term" ); |
---|
3687 | break; |
---|
3688 | case spectrumNoSingularity: |
---|
3689 | WerrorS( "not a singularity" ); |
---|
3690 | break; |
---|
3691 | case spectrumNotIsolated: |
---|
3692 | WerrorS( "the singularity is not isolated" ); |
---|
3693 | break; |
---|
3694 | case spectrumNoHC: |
---|
3695 | WerrorS( "highest corner cannot be computed" ); |
---|
3696 | break; |
---|
3697 | case spectrumDegenerate: |
---|
3698 | WerrorS( "principal part is degenerate" ); |
---|
3699 | break; |
---|
3700 | case spectrumOK: |
---|
3701 | break; |
---|
3702 | |
---|
3703 | default: |
---|
3704 | WerrorS( "unknown error occurred" ); |
---|
3705 | break; |
---|
3706 | } |
---|
3707 | } |
---|
3708 | |
---|
3709 | BOOLEAN spectrumProc( leftv result,leftv first ) |
---|
3710 | { |
---|
3711 | spectrumState state = spectrumOK; |
---|
3712 | |
---|
3713 | // ------------------- |
---|
3714 | // check consistency |
---|
3715 | // ------------------- |
---|
3716 | |
---|
3717 | // check for a local ring |
---|
3718 | |
---|
3719 | if( !ringIsLocal(currRing ) ) |
---|
3720 | { |
---|
3721 | WerrorS( "only works for local orderings" ); |
---|
3722 | state = spectrumWrongRing; |
---|
3723 | } |
---|
3724 | |
---|
3725 | // no quotient rings are allowed |
---|
3726 | |
---|
3727 | else if( currRing->qideal != NULL ) |
---|
3728 | { |
---|
3729 | WerrorS( "does not work in quotient rings" ); |
---|
3730 | state = spectrumWrongRing; |
---|
3731 | } |
---|
3732 | else |
---|
3733 | { |
---|
3734 | lists L = (lists)NULL; |
---|
3735 | int flag = 1; // weight corner optimization is safe |
---|
3736 | |
---|
3737 | state = spectrumCompute( (poly)first->Data( ),&L,flag ); |
---|
3738 | |
---|
3739 | if( state==spectrumOK ) |
---|
3740 | { |
---|
3741 | result->rtyp = LIST_CMD; |
---|
3742 | result->data = (char*)L; |
---|
3743 | } |
---|
3744 | else |
---|
3745 | { |
---|
3746 | spectrumPrintError(state); |
---|
3747 | } |
---|
3748 | } |
---|
3749 | |
---|
3750 | return (state!=spectrumOK); |
---|
3751 | } |
---|
3752 | |
---|
3753 | // ---------------------------------------------------------------------------- |
---|
3754 | // this procedure is called from the interpreter |
---|
3755 | // ---------------------------------------------------------------------------- |
---|
3756 | // first = polynomial |
---|
3757 | // result = list of spectrum numbers |
---|
3758 | // ---------------------------------------------------------------------------- |
---|
3759 | |
---|
3760 | BOOLEAN spectrumfProc( leftv result,leftv first ) |
---|
3761 | { |
---|
3762 | spectrumState state = spectrumOK; |
---|
3763 | |
---|
3764 | // ------------------- |
---|
3765 | // check consistency |
---|
3766 | // ------------------- |
---|
3767 | |
---|
3768 | // check for a local polynomial ring |
---|
3769 | |
---|
3770 | if( currRing->OrdSgn != -1 ) |
---|
3771 | // ?? HS: the test above is also true for k[x][[y]], k[[x]][y] |
---|
3772 | // or should we use: |
---|
3773 | //if( !ringIsLocal( ) ) |
---|
3774 | { |
---|
3775 | WerrorS( "only works for local orderings" ); |
---|
3776 | state = spectrumWrongRing; |
---|
3777 | } |
---|
3778 | else if( currRing->qideal != NULL ) |
---|
3779 | { |
---|
3780 | WerrorS( "does not work in quotient rings" ); |
---|
3781 | state = spectrumWrongRing; |
---|
3782 | } |
---|
3783 | else |
---|
3784 | { |
---|
3785 | lists L = (lists)NULL; |
---|
3786 | int flag = 2; // symmetric optimization |
---|
3787 | |
---|
3788 | state = spectrumCompute( (poly)first->Data( ),&L,flag ); |
---|
3789 | |
---|
3790 | if( state==spectrumOK ) |
---|
3791 | { |
---|
3792 | result->rtyp = LIST_CMD; |
---|
3793 | result->data = (char*)L; |
---|
3794 | } |
---|
3795 | else |
---|
3796 | { |
---|
3797 | spectrumPrintError(state); |
---|
3798 | } |
---|
3799 | } |
---|
3800 | |
---|
3801 | return (state!=spectrumOK); |
---|
3802 | } |
---|
3803 | |
---|
3804 | // ---------------------------------------------------------------------------- |
---|
3805 | // check if a list is a spectrum |
---|
3806 | // check for: |
---|
3807 | // list has 6 elements |
---|
3808 | // 1st element is int (mu=Milnor number) |
---|
3809 | // 2nd element is int (pg=geometrical genus) |
---|
3810 | // 3rd element is int (n =number of different spectrum numbers) |
---|
3811 | // 4th element is intvec (num=numerators) |
---|
3812 | // 5th element is intvec (den=denomiantors) |
---|
3813 | // 6th element is intvec (mul=multiplicities) |
---|
3814 | // exactly n numerators |
---|
3815 | // exactly n denominators |
---|
3816 | // exactly n multiplicities |
---|
3817 | // mu>0 |
---|
3818 | // pg>=0 |
---|
3819 | // n>0 |
---|
3820 | // num>0 |
---|
3821 | // den>0 |
---|
3822 | // mul>0 |
---|
3823 | // symmetriy with respect to numberofvariables/2 |
---|
3824 | // monotony |
---|
3825 | // mu = sum of all multiplicities |
---|
3826 | // pg = sum of all multiplicities where num/den<=1 |
---|
3827 | // ---------------------------------------------------------------------------- |
---|
3828 | |
---|
3829 | semicState list_is_spectrum( lists l ) |
---|
3830 | { |
---|
3831 | // ------------------- |
---|
3832 | // check list length |
---|
3833 | // ------------------- |
---|
3834 | |
---|
3835 | if( l->nr < 5 ) |
---|
3836 | { |
---|
3837 | return semicListTooShort; |
---|
3838 | } |
---|
3839 | else if( l->nr > 5 ) |
---|
3840 | { |
---|
3841 | return semicListTooLong; |
---|
3842 | } |
---|
3843 | |
---|
3844 | // ------------- |
---|
3845 | // check types |
---|
3846 | // ------------- |
---|
3847 | |
---|
3848 | if( l->m[0].rtyp != INT_CMD ) |
---|
3849 | { |
---|
3850 | return semicListFirstElementWrongType; |
---|
3851 | } |
---|
3852 | else if( l->m[1].rtyp != INT_CMD ) |
---|
3853 | { |
---|
3854 | return semicListSecondElementWrongType; |
---|
3855 | } |
---|
3856 | else if( l->m[2].rtyp != INT_CMD ) |
---|
3857 | { |
---|
3858 | return semicListThirdElementWrongType; |
---|
3859 | } |
---|
3860 | else if( l->m[3].rtyp != INTVEC_CMD ) |
---|
3861 | { |
---|
3862 | return semicListFourthElementWrongType; |
---|
3863 | } |
---|
3864 | else if( l->m[4].rtyp != INTVEC_CMD ) |
---|
3865 | { |
---|
3866 | return semicListFifthElementWrongType; |
---|
3867 | } |
---|
3868 | else if( l->m[5].rtyp != INTVEC_CMD ) |
---|
3869 | { |
---|
3870 | return semicListSixthElementWrongType; |
---|
3871 | } |
---|
3872 | |
---|
3873 | // ------------------------- |
---|
3874 | // check number of entries |
---|
3875 | // ------------------------- |
---|
3876 | |
---|
3877 | int mu = (int)(long)(l->m[0].Data( )); |
---|
3878 | int pg = (int)(long)(l->m[1].Data( )); |
---|
3879 | int n = (int)(long)(l->m[2].Data( )); |
---|
3880 | |
---|
3881 | if( n <= 0 ) |
---|
3882 | { |
---|
3883 | return semicListNNegative; |
---|
3884 | } |
---|
3885 | |
---|
3886 | intvec *num = (intvec*)l->m[3].Data( ); |
---|
3887 | intvec *den = (intvec*)l->m[4].Data( ); |
---|
3888 | intvec *mul = (intvec*)l->m[5].Data( ); |
---|
3889 | |
---|
3890 | if( n != num->length( ) ) |
---|
3891 | { |
---|
3892 | return semicListWrongNumberOfNumerators; |
---|
3893 | } |
---|
3894 | else if( n != den->length( ) ) |
---|
3895 | { |
---|
3896 | return semicListWrongNumberOfDenominators; |
---|
3897 | } |
---|
3898 | else if( n != mul->length( ) ) |
---|
3899 | { |
---|
3900 | return semicListWrongNumberOfMultiplicities; |
---|
3901 | } |
---|
3902 | |
---|
3903 | // -------- |
---|
3904 | // values |
---|
3905 | // -------- |
---|
3906 | |
---|
3907 | if( mu <= 0 ) |
---|
3908 | { |
---|
3909 | return semicListMuNegative; |
---|
3910 | } |
---|
3911 | if( pg < 0 ) |
---|
3912 | { |
---|
3913 | return semicListPgNegative; |
---|
3914 | } |
---|
3915 | |
---|
3916 | int i; |
---|
3917 | |
---|
3918 | for( i=0; i<n; i++ ) |
---|
3919 | { |
---|
3920 | if( (*num)[i] <= 0 ) |
---|
3921 | { |
---|
3922 | return semicListNumNegative; |
---|
3923 | } |
---|
3924 | if( (*den)[i] <= 0 ) |
---|
3925 | { |
---|
3926 | return semicListDenNegative; |
---|
3927 | } |
---|
3928 | if( (*mul)[i] <= 0 ) |
---|
3929 | { |
---|
3930 | return semicListMulNegative; |
---|
3931 | } |
---|
3932 | } |
---|
3933 | |
---|
3934 | // ---------------- |
---|
3935 | // check symmetry |
---|
3936 | // ---------------- |
---|
3937 | |
---|
3938 | int j; |
---|
3939 | |
---|
3940 | for( i=0, j=n-1; i<=j; i++,j-- ) |
---|
3941 | { |
---|
3942 | if( (*num)[i] != rVar(currRing)*((*den)[i]) - (*num)[j] || |
---|
3943 | (*den)[i] != (*den)[j] || |
---|
3944 | (*mul)[i] != (*mul)[j] ) |
---|
3945 | { |
---|
3946 | return semicListNotSymmetric; |
---|
3947 | } |
---|
3948 | } |
---|
3949 | |
---|
3950 | // ---------------- |
---|
3951 | // check monotony |
---|
3952 | // ---------------- |
---|
3953 | |
---|
3954 | for( i=0, j=1; i<n/2; i++,j++ ) |
---|
3955 | { |
---|
3956 | if( (*num)[i]*(*den)[j] >= (*num)[j]*(*den)[i] ) |
---|
3957 | { |
---|
3958 | return semicListNotMonotonous; |
---|
3959 | } |
---|
3960 | } |
---|
3961 | |
---|
3962 | // --------------------- |
---|
3963 | // check Milnor number |
---|
3964 | // --------------------- |
---|
3965 | |
---|
3966 | for( mu=0, i=0; i<n; i++ ) |
---|
3967 | { |
---|
3968 | mu += (*mul)[i]; |
---|
3969 | } |
---|
3970 | |
---|
3971 | if( mu != (int)(long)(l->m[0].Data( )) ) |
---|
3972 | { |
---|
3973 | return semicListMilnorWrong; |
---|
3974 | } |
---|
3975 | |
---|
3976 | // ------------------------- |
---|
3977 | // check geometrical genus |
---|
3978 | // ------------------------- |
---|
3979 | |
---|
3980 | for( pg=0, i=0; i<n; i++ ) |
---|
3981 | { |
---|
3982 | if( (*num)[i]<=(*den)[i] ) |
---|
3983 | { |
---|
3984 | pg += (*mul)[i]; |
---|
3985 | } |
---|
3986 | } |
---|
3987 | |
---|
3988 | if( pg != (int)(long)(l->m[1].Data( )) ) |
---|
3989 | { |
---|
3990 | return semicListPGWrong; |
---|
3991 | } |
---|
3992 | |
---|
3993 | return semicOK; |
---|
3994 | } |
---|
3995 | |
---|
3996 | // ---------------------------------------------------------------------------- |
---|
3997 | // this procedure is called from the interpreter |
---|
3998 | // ---------------------------------------------------------------------------- |
---|
3999 | // first = list of spectrum numbers |
---|
4000 | // second = list of spectrum numbers |
---|
4001 | // result = sum of the two lists |
---|
4002 | // ---------------------------------------------------------------------------- |
---|
4003 | |
---|
4004 | BOOLEAN spaddProc( leftv result,leftv first,leftv second ) |
---|
4005 | { |
---|
4006 | semicState state; |
---|
4007 | |
---|
4008 | // ----------------- |
---|
4009 | // check arguments |
---|
4010 | // ----------------- |
---|
4011 | |
---|
4012 | lists l1 = (lists)first->Data( ); |
---|
4013 | lists l2 = (lists)second->Data( ); |
---|
4014 | |
---|
4015 | if( (state=list_is_spectrum( l1 )) != semicOK ) |
---|
4016 | { |
---|
4017 | WerrorS( "first argument is not a spectrum:" ); |
---|
4018 | list_error( state ); |
---|
4019 | } |
---|
4020 | else if( (state=list_is_spectrum( l2 )) != semicOK ) |
---|
4021 | { |
---|
4022 | WerrorS( "second argument is not a spectrum:" ); |
---|
4023 | list_error( state ); |
---|
4024 | } |
---|
4025 | else |
---|
4026 | { |
---|
4027 | spectrum s1= spectrumFromList ( l1 ); |
---|
4028 | spectrum s2= spectrumFromList ( l2 ); |
---|
4029 | spectrum sum( s1+s2 ); |
---|
4030 | |
---|
4031 | result->rtyp = LIST_CMD; |
---|
4032 | result->data = (char*)(getList(sum)); |
---|
4033 | } |
---|
4034 | |
---|
4035 | return (state!=semicOK); |
---|
4036 | } |
---|
4037 | |
---|
4038 | // ---------------------------------------------------------------------------- |
---|
4039 | // this procedure is called from the interpreter |
---|
4040 | // ---------------------------------------------------------------------------- |
---|
4041 | // first = list of spectrum numbers |
---|
4042 | // second = integer |
---|
4043 | // result = the multiple of the first list by the second factor |
---|
4044 | // ---------------------------------------------------------------------------- |
---|
4045 | |
---|
4046 | BOOLEAN spmulProc( leftv result,leftv first,leftv second ) |
---|
4047 | { |
---|
4048 | semicState state; |
---|
4049 | |
---|
4050 | // ----------------- |
---|
4051 | // check arguments |
---|
4052 | // ----------------- |
---|
4053 | |
---|
4054 | lists l = (lists)first->Data( ); |
---|
4055 | int k = (int)(long)second->Data( ); |
---|
4056 | |
---|
4057 | if( (state=list_is_spectrum( l ))!=semicOK ) |
---|
4058 | { |
---|
4059 | WerrorS( "first argument is not a spectrum" ); |
---|
4060 | list_error( state ); |
---|
4061 | } |
---|
4062 | else if( k < 0 ) |
---|
4063 | { |
---|
4064 | WerrorS( "second argument should be positive" ); |
---|
4065 | state = semicMulNegative; |
---|
4066 | } |
---|
4067 | else |
---|
4068 | { |
---|
4069 | spectrum s= spectrumFromList( l ); |
---|
4070 | spectrum product( k*s ); |
---|
4071 | |
---|
4072 | result->rtyp = LIST_CMD; |
---|
4073 | result->data = (char*)getList(product); |
---|
4074 | } |
---|
4075 | |
---|
4076 | return (state!=semicOK); |
---|
4077 | } |
---|
4078 | |
---|
4079 | // ---------------------------------------------------------------------------- |
---|
4080 | // this procedure is called from the interpreter |
---|
4081 | // ---------------------------------------------------------------------------- |
---|
4082 | // first = list of spectrum numbers |
---|
4083 | // second = list of spectrum numbers |
---|
4084 | // result = semicontinuity index |
---|
4085 | // ---------------------------------------------------------------------------- |
---|
4086 | |
---|
4087 | BOOLEAN semicProc3 ( leftv res,leftv u,leftv v,leftv w ) |
---|
4088 | { |
---|
4089 | semicState state; |
---|
4090 | BOOLEAN qh=(((int)(long)w->Data())==1); |
---|
4091 | |
---|
4092 | // ----------------- |
---|
4093 | // check arguments |
---|
4094 | // ----------------- |
---|
4095 | |
---|
4096 | lists l1 = (lists)u->Data( ); |
---|
4097 | lists l2 = (lists)v->Data( ); |
---|
4098 | |
---|
4099 | if( (state=list_is_spectrum( l1 ))!=semicOK ) |
---|
4100 | { |
---|
4101 | WerrorS( "first argument is not a spectrum" ); |
---|
4102 | list_error( state ); |
---|
4103 | } |
---|
4104 | else if( (state=list_is_spectrum( l2 ))!=semicOK ) |
---|
4105 | { |
---|
4106 | WerrorS( "second argument is not a spectrum" ); |
---|
4107 | list_error( state ); |
---|
4108 | } |
---|
4109 | else |
---|
4110 | { |
---|
4111 | spectrum s1= spectrumFromList( l1 ); |
---|
4112 | spectrum s2= spectrumFromList( l2 ); |
---|
4113 | |
---|
4114 | res->rtyp = INT_CMD; |
---|
4115 | if (qh) |
---|
4116 | res->data = (void*)(s1.mult_spectrumh( s2 )); |
---|
4117 | else |
---|
4118 | res->data = (void*)(s1.mult_spectrum( s2 )); |
---|
4119 | } |
---|
4120 | |
---|
4121 | // ----------------- |
---|
4122 | // check status |
---|
4123 | // ----------------- |
---|
4124 | |
---|
4125 | return (state!=semicOK); |
---|
4126 | } |
---|
4127 | BOOLEAN semicProc ( leftv res,leftv u,leftv v ) |
---|
4128 | { |
---|
4129 | sleftv tmp; |
---|
4130 | memset(&tmp,0,sizeof(tmp)); |
---|
4131 | tmp.rtyp=INT_CMD; |
---|
4132 | /* tmp.data = (void *)0; -- done by memset */ |
---|
4133 | |
---|
4134 | return semicProc3(res,u,v,&tmp); |
---|
4135 | } |
---|
4136 | |
---|
4137 | #endif |
---|
4138 | |
---|
4139 | //from mpr_inout.cc |
---|
4140 | extern void nPrint(number n); |
---|
4141 | |
---|
4142 | BOOLEAN loNewtonP( leftv res, leftv arg1 ) |
---|
4143 | { |
---|
4144 | res->data= (void*)loNewtonPolytope( (ideal)arg1->Data() ); |
---|
4145 | return FALSE; |
---|
4146 | } |
---|
4147 | |
---|
4148 | BOOLEAN loSimplex( leftv res, leftv args ) |
---|
4149 | { |
---|
4150 | if ( !(rField_is_long_R(currRing)) ) |
---|
4151 | { |
---|
4152 | WerrorS("Ground field not implemented!"); |
---|
4153 | return TRUE; |
---|
4154 | } |
---|
4155 | |
---|
4156 | simplex * LP; |
---|
4157 | matrix m; |
---|
4158 | |
---|
4159 | leftv v= args; |
---|
4160 | if ( v->Typ() != MATRIX_CMD ) // 1: matrix |
---|
4161 | return TRUE; |
---|
4162 | else |
---|
4163 | m= (matrix)(v->CopyD()); |
---|
4164 | |
---|
4165 | LP = new simplex(MATROWS(m),MATCOLS(m)); |
---|
4166 | LP->mapFromMatrix(m); |
---|
4167 | |
---|
4168 | v= v->next; |
---|
4169 | if ( v->Typ() != INT_CMD ) // 2: m = number of constraints |
---|
4170 | return TRUE; |
---|
4171 | else |
---|
4172 | LP->m= (int)(long)(v->Data()); |
---|
4173 | |
---|
4174 | v= v->next; |
---|
4175 | if ( v->Typ() != INT_CMD ) // 3: n = number of variables |
---|
4176 | return TRUE; |
---|
4177 | else |
---|
4178 | LP->n= (int)(long)(v->Data()); |
---|
4179 | |
---|
4180 | v= v->next; |
---|
4181 | if ( v->Typ() != INT_CMD ) // 4: m1 = number of <= constraints |
---|
4182 | return TRUE; |
---|
4183 | else |
---|
4184 | LP->m1= (int)(long)(v->Data()); |
---|
4185 | |
---|
4186 | v= v->next; |
---|
4187 | if ( v->Typ() != INT_CMD ) // 5: m2 = number of >= constraints |
---|
4188 | return TRUE; |
---|
4189 | else |
---|
4190 | LP->m2= (int)(long)(v->Data()); |
---|
4191 | |
---|
4192 | v= v->next; |
---|
4193 | if ( v->Typ() != INT_CMD ) // 6: m3 = number of == constraints |
---|
4194 | return TRUE; |
---|
4195 | else |
---|
4196 | LP->m3= (int)(long)(v->Data()); |
---|
4197 | |
---|
4198 | #ifdef mprDEBUG_PROT |
---|
4199 | Print("m (constraints) %d\n",LP->m); |
---|
4200 | Print("n (columns) %d\n",LP->n); |
---|
4201 | Print("m1 (<=) %d\n",LP->m1); |
---|
4202 | Print("m2 (>=) %d\n",LP->m2); |
---|
4203 | Print("m3 (==) %d\n",LP->m3); |
---|
4204 | #endif |
---|
4205 | |
---|
4206 | LP->compute(); |
---|
4207 | |
---|
4208 | lists lres= (lists)omAlloc( sizeof(slists) ); |
---|
4209 | lres->Init( 6 ); |
---|
4210 | |
---|
4211 | lres->m[0].rtyp= MATRIX_CMD; // output matrix |
---|
4212 | lres->m[0].data=(void*)LP->mapToMatrix(m); |
---|
4213 | |
---|
4214 | lres->m[1].rtyp= INT_CMD; // found a solution? |
---|
4215 | lres->m[1].data=(void*)LP->icase; |
---|
4216 | |
---|
4217 | lres->m[2].rtyp= INTVEC_CMD; |
---|
4218 | lres->m[2].data=(void*)LP->posvToIV(); |
---|
4219 | |
---|
4220 | lres->m[3].rtyp= INTVEC_CMD; |
---|
4221 | lres->m[3].data=(void*)LP->zrovToIV(); |
---|
4222 | |
---|
4223 | lres->m[4].rtyp= INT_CMD; |
---|
4224 | lres->m[4].data=(void*)LP->m; |
---|
4225 | |
---|
4226 | lres->m[5].rtyp= INT_CMD; |
---|
4227 | lres->m[5].data=(void*)LP->n; |
---|
4228 | |
---|
4229 | res->data= (void*)lres; |
---|
4230 | |
---|
4231 | return FALSE; |
---|
4232 | } |
---|
4233 | |
---|
4234 | BOOLEAN nuMPResMat( leftv res, leftv arg1, leftv arg2 ) |
---|
4235 | { |
---|
4236 | ideal gls = (ideal)(arg1->Data()); |
---|
4237 | int imtype= (int)(long)arg2->Data(); |
---|
4238 | |
---|
4239 | uResultant::resMatType mtype= determineMType( imtype ); |
---|
4240 | |
---|
4241 | // check input ideal ( = polynomial system ) |
---|
4242 | if ( mprIdealCheck( gls, arg1->Name(), mtype, true ) != mprOk ) |
---|
4243 | { |
---|
4244 | return TRUE; |
---|
4245 | } |
---|
4246 | |
---|
4247 | uResultant *resMat= new uResultant( gls, mtype, false ); |
---|
4248 | if (resMat!=NULL) |
---|
4249 | { |
---|
4250 | res->rtyp = MODUL_CMD; |
---|
4251 | res->data= (void*)resMat->accessResMat()->getMatrix(); |
---|
4252 | if (!errorreported) delete resMat; |
---|
4253 | } |
---|
4254 | return errorreported; |
---|
4255 | } |
---|
4256 | |
---|
4257 | BOOLEAN nuLagSolve( leftv res, leftv arg1, leftv arg2, leftv arg3 ) |
---|
4258 | { |
---|
4259 | |
---|
4260 | poly gls; |
---|
4261 | gls= (poly)(arg1->Data()); |
---|
4262 | int howclean= (int)(long)arg3->Data(); |
---|
4263 | |
---|
4264 | if ( !(rField_is_R(currRing) || |
---|
4265 | rField_is_Q(currRing) || |
---|
4266 | rField_is_long_R(currRing) || |
---|
4267 | rField_is_long_C(currRing)) ) |
---|
4268 | { |
---|
4269 | WerrorS("Ground field not implemented!"); |
---|
4270 | return TRUE; |
---|
4271 | } |
---|
4272 | |
---|
4273 | if ( !(rField_is_R(currRing) || rField_is_long_R(currRing) || \ |
---|
4274 | rField_is_long_C(currRing)) ) |
---|
4275 | { |
---|
4276 | unsigned long int ii = (unsigned long int)arg2->Data(); |
---|
4277 | setGMPFloatDigits( ii, ii ); |
---|
4278 | } |
---|
4279 | |
---|
4280 | if ( gls == NULL || pIsConstant( gls ) ) |
---|
4281 | { |
---|
4282 | WerrorS("Input polynomial is constant!"); |
---|
4283 | return TRUE; |
---|
4284 | } |
---|
4285 | |
---|
4286 | int ldummy; |
---|
4287 | int deg= currRing->pLDeg( gls, &ldummy, currRing ); |
---|
4288 | // int deg= pDeg( gls ); |
---|
4289 | // int len= pLength( gls ); |
---|
4290 | int i,vpos=0; |
---|
4291 | poly piter; |
---|
4292 | lists elist; |
---|
4293 | lists rlist; |
---|
4294 | |
---|
4295 | elist= (lists)omAlloc( sizeof(slists) ); |
---|
4296 | elist->Init( 0 ); |
---|
4297 | |
---|
4298 | if ( rVar(currRing) > 1 ) |
---|
4299 | { |
---|
4300 | piter= gls; |
---|
4301 | for ( i= 1; i <= rVar(currRing); i++ ) |
---|
4302 | if ( pGetExp( piter, i ) ) |
---|
4303 | { |
---|
4304 | vpos= i; |
---|
4305 | break; |
---|
4306 | } |
---|
4307 | while ( piter ) |
---|
4308 | { |
---|
4309 | for ( i= 1; i <= rVar(currRing); i++ ) |
---|
4310 | if ( (vpos != i) && (pGetExp( piter, i ) != 0) ) |
---|
4311 | { |
---|
4312 | WerrorS("The input polynomial must be univariate!"); |
---|
4313 | return TRUE; |
---|
4314 | } |
---|
4315 | pIter( piter ); |
---|
4316 | } |
---|
4317 | } |
---|
4318 | |
---|
4319 | rootContainer * roots= new rootContainer(); |
---|
4320 | number * pcoeffs= (number *)omAlloc( (deg+1) * sizeof( number ) ); |
---|
4321 | piter= gls; |
---|
4322 | for ( i= deg; i >= 0; i-- ) |
---|
4323 | { |
---|
4324 | //if ( piter ) Print("deg %d, pDeg(piter) %d\n",i,pTotaldegree(piter)); |
---|
4325 | if ( piter && pTotaldegree(piter) == i ) |
---|
4326 | { |
---|
4327 | pcoeffs[i]= nCopy( pGetCoeff( piter ) ); |
---|
4328 | //nPrint( pcoeffs[i] );PrintS(" "); |
---|
4329 | pIter( piter ); |
---|
4330 | } |
---|
4331 | else |
---|
4332 | { |
---|
4333 | pcoeffs[i]= nInit(0); |
---|
4334 | } |
---|
4335 | } |
---|
4336 | |
---|
4337 | #ifdef mprDEBUG_PROT |
---|
4338 | for (i=deg; i >= 0; i--) |
---|
4339 | { |
---|
4340 | nPrint( pcoeffs[i] );PrintS(" "); |
---|
4341 | } |
---|
4342 | PrintLn(); |
---|
4343 | #endif |
---|
4344 | |
---|
4345 | roots->fillContainer( pcoeffs, NULL, 1, deg, rootContainer::onepoly, 1 ); |
---|
4346 | roots->solver( howclean ); |
---|
4347 | |
---|
4348 | int elem= roots->getAnzRoots(); |
---|
4349 | char *dummy; |
---|
4350 | int j; |
---|
4351 | |
---|
4352 | rlist= (lists)omAlloc( sizeof(slists) ); |
---|
4353 | rlist->Init( elem ); |
---|
4354 | |
---|
4355 | if (rField_is_long_C(currRing)) |
---|
4356 | { |
---|
4357 | for ( j= 0; j < elem; j++ ) |
---|
4358 | { |
---|
4359 | rlist->m[j].rtyp=NUMBER_CMD; |
---|
4360 | rlist->m[j].data=(void *)nCopy((number)(roots->getRoot(j))); |
---|
4361 | //rlist->m[j].data=(void *)(number)(roots->getRoot(j)); |
---|
4362 | } |
---|
4363 | } |
---|
4364 | else |
---|
4365 | { |
---|
4366 | for ( j= 0; j < elem; j++ ) |
---|
4367 | { |
---|
4368 | dummy = complexToStr( (*roots)[j], gmp_output_digits, currRing->cf ); |
---|
4369 | rlist->m[j].rtyp=STRING_CMD; |
---|
4370 | rlist->m[j].data=(void *)dummy; |
---|
4371 | } |
---|
4372 | } |
---|
4373 | |
---|
4374 | elist->Clean(); |
---|
4375 | //omFreeSize( (ADDRESS) elist, sizeof(slists) ); |
---|
4376 | |
---|
4377 | // this is (via fillContainer) the same data as in root |
---|
4378 | //for ( i= deg; i >= 0; i-- ) nDelete( &pcoeffs[i] ); |
---|
4379 | //omFreeSize( (ADDRESS) pcoeffs, (deg+1) * sizeof( number ) ); |
---|
4380 | |
---|
4381 | delete roots; |
---|
4382 | |
---|
4383 | res->rtyp= LIST_CMD; |
---|
4384 | res->data= (void*)rlist; |
---|
4385 | |
---|
4386 | return FALSE; |
---|
4387 | } |
---|
4388 | |
---|
4389 | BOOLEAN nuVanderSys( leftv res, leftv arg1, leftv arg2, leftv arg3) |
---|
4390 | { |
---|
4391 | int i; |
---|
4392 | ideal p,w; |
---|
4393 | p= (ideal)arg1->Data(); |
---|
4394 | w= (ideal)arg2->Data(); |
---|
4395 | |
---|
4396 | // w[0] = f(p^0) |
---|
4397 | // w[1] = f(p^1) |
---|
4398 | // ... |
---|
4399 | // p can be a vector of numbers (multivariate polynom) |
---|
4400 | // or one number (univariate polynom) |
---|
4401 | // tdg = deg(f) |
---|
4402 | |
---|
4403 | int n= IDELEMS( p ); |
---|
4404 | int m= IDELEMS( w ); |
---|
4405 | int tdg= (int)(long)arg3->Data(); |
---|
4406 | |
---|
4407 | res->data= (void*)NULL; |
---|
4408 | |
---|
4409 | // check the input |
---|
4410 | if ( tdg < 1 ) |
---|
4411 | { |
---|
4412 | WerrorS("Last input parameter must be > 0!"); |
---|
4413 | return TRUE; |
---|
4414 | } |
---|
4415 | if ( n != rVar(currRing) ) |
---|
4416 | { |
---|
4417 | Werror("Size of first input ideal must be equal to %d!",rVar(currRing)); |
---|
4418 | return TRUE; |
---|
4419 | } |
---|
4420 | if ( m != (int)pow((double)tdg+1,(double)n) ) |
---|
4421 | { |
---|
4422 | Werror("Size of second input ideal must be equal to %d!", |
---|
4423 | (int)pow((double)tdg+1,(double)n)); |
---|
4424 | return TRUE; |
---|
4425 | } |
---|
4426 | if ( !(rField_is_Q(currRing) /* || |
---|
4427 | rField_is_R() || rField_is_long_R() || |
---|
4428 | rField_is_long_C()*/ ) ) |
---|
4429 | { |
---|
4430 | WerrorS("Ground field not implemented!"); |
---|
4431 | return TRUE; |
---|
4432 | } |
---|
4433 | |
---|
4434 | number tmp; |
---|
4435 | number *pevpoint= (number *)omAlloc( n * sizeof( number ) ); |
---|
4436 | for ( i= 0; i < n; i++ ) |
---|
4437 | { |
---|
4438 | pevpoint[i]=nInit(0); |
---|
4439 | if ( (p->m)[i] ) |
---|
4440 | { |
---|
4441 | tmp = pGetCoeff( (p->m)[i] ); |
---|
4442 | if ( nIsZero(tmp) || nIsOne(tmp) || nIsMOne(tmp) ) |
---|
4443 | { |
---|
4444 | omFreeSize( (ADDRESS)pevpoint, n * sizeof( number ) ); |
---|
4445 | WerrorS("Elements of first input ideal must not be equal to -1, 0, 1!"); |
---|
4446 | return TRUE; |
---|
4447 | } |
---|
4448 | } else tmp= NULL; |
---|
4449 | if ( !nIsZero(tmp) ) |
---|
4450 | { |
---|
4451 | if ( !pIsConstant((p->m)[i])) |
---|
4452 | { |
---|
4453 | omFreeSize( (ADDRESS)pevpoint, n * sizeof( number ) ); |
---|
4454 | WerrorS("Elements of first input ideal must be numbers!"); |
---|
4455 | return TRUE; |
---|
4456 | } |
---|
4457 | pevpoint[i]= nCopy( tmp ); |
---|
4458 | } |
---|
4459 | } |
---|
4460 | |
---|
4461 | number *wresults= (number *)omAlloc( m * sizeof( number ) ); |
---|
4462 | for ( i= 0; i < m; i++ ) |
---|
4463 | { |
---|
4464 | wresults[i]= nInit(0); |
---|
4465 | if ( (w->m)[i] && !nIsZero(pGetCoeff((w->m)[i])) ) |
---|
4466 | { |
---|
4467 | if ( !pIsConstant((w->m)[i])) |
---|
4468 | { |
---|
4469 | omFreeSize( (ADDRESS)pevpoint, n * sizeof( number ) ); |
---|
4470 | omFreeSize( (ADDRESS)wresults, m * sizeof( number ) ); |
---|
4471 | WerrorS("Elements of second input ideal must be numbers!"); |
---|
4472 | return TRUE; |
---|
4473 | } |
---|
4474 | wresults[i]= nCopy(pGetCoeff((w->m)[i])); |
---|
4475 | } |
---|
4476 | } |
---|
4477 | |
---|
4478 | vandermonde vm( m, n, tdg, pevpoint, FALSE ); |
---|
4479 | number *ncpoly= vm.interpolateDense( wresults ); |
---|
4480 | // do not free ncpoly[]!! |
---|
4481 | poly rpoly= vm.numvec2poly( ncpoly ); |
---|
4482 | |
---|
4483 | omFreeSize( (ADDRESS)pevpoint, n * sizeof( number ) ); |
---|
4484 | omFreeSize( (ADDRESS)wresults, m * sizeof( number ) ); |
---|
4485 | |
---|
4486 | res->data= (void*)rpoly; |
---|
4487 | return FALSE; |
---|
4488 | } |
---|
4489 | |
---|
4490 | BOOLEAN nuUResSolve( leftv res, leftv args ) |
---|
4491 | { |
---|
4492 | leftv v= args; |
---|
4493 | |
---|
4494 | ideal gls; |
---|
4495 | int imtype; |
---|
4496 | int howclean; |
---|
4497 | |
---|
4498 | // get ideal |
---|
4499 | if ( v->Typ() != IDEAL_CMD ) |
---|
4500 | return TRUE; |
---|
4501 | else gls= (ideal)(v->Data()); |
---|
4502 | v= v->next; |
---|
4503 | |
---|
4504 | // get resultant matrix type to use (0,1) |
---|
4505 | if ( v->Typ() != INT_CMD ) |
---|
4506 | return TRUE; |
---|
4507 | else imtype= (int)(long)v->Data(); |
---|
4508 | v= v->next; |
---|
4509 | |
---|
4510 | if (imtype==0) |
---|
4511 | { |
---|
4512 | ideal test_id=idInit(1,1); |
---|
4513 | int j; |
---|
4514 | for(j=IDELEMS(gls)-1;j>=0;j--) |
---|
4515 | { |
---|
4516 | if (gls->m[j]!=NULL) |
---|
4517 | { |
---|
4518 | test_id->m[0]=gls->m[j]; |
---|
4519 | intvec *dummy_w=id_QHomWeight(test_id, currRing); |
---|
4520 | if (dummy_w!=NULL) |
---|
4521 | { |
---|
4522 | WerrorS("Newton polytope not of expected dimension"); |
---|
4523 | delete dummy_w; |
---|
4524 | return TRUE; |
---|
4525 | } |
---|
4526 | } |
---|
4527 | } |
---|
4528 | } |
---|
4529 | |
---|
4530 | // get and set precision in digits ( > 0 ) |
---|
4531 | if ( v->Typ() != INT_CMD ) |
---|
4532 | return TRUE; |
---|
4533 | else if ( !(rField_is_R(currRing) || rField_is_long_R(currRing) || \ |
---|
4534 | rField_is_long_C(currRing)) ) |
---|
4535 | { |
---|
4536 | unsigned long int ii=(unsigned long int)v->Data(); |
---|
4537 | setGMPFloatDigits( ii, ii ); |
---|
4538 | } |
---|
4539 | v= v->next; |
---|
4540 | |
---|
4541 | // get interpolation steps (0,1,2) |
---|
4542 | if ( v->Typ() != INT_CMD ) |
---|
4543 | return TRUE; |
---|
4544 | else howclean= (int)(long)v->Data(); |
---|
4545 | |
---|
4546 | uResultant::resMatType mtype= determineMType( imtype ); |
---|
4547 | int i,count; |
---|
4548 | lists listofroots= NULL; |
---|
4549 | number smv= NULL; |
---|
4550 | BOOLEAN interpolate_det= (mtype==uResultant::denseResMat)?TRUE:FALSE; |
---|
4551 | |
---|
4552 | //emptylist= (lists)omAlloc( sizeof(slists) ); |
---|
4553 | //emptylist->Init( 0 ); |
---|
4554 | |
---|
4555 | //res->rtyp = LIST_CMD; |
---|
4556 | //res->data= (void *)emptylist; |
---|
4557 | |
---|
4558 | // check input ideal ( = polynomial system ) |
---|
4559 | if ( mprIdealCheck( gls, args->Name(), mtype ) != mprOk ) |
---|
4560 | { |
---|
4561 | return TRUE; |
---|
4562 | } |
---|
4563 | |
---|
4564 | uResultant * ures; |
---|
4565 | rootContainer ** iproots; |
---|
4566 | rootContainer ** muiproots; |
---|
4567 | rootArranger * arranger; |
---|
4568 | |
---|
4569 | // main task 1: setup of resultant matrix |
---|
4570 | ures= new uResultant( gls, mtype ); |
---|
4571 | if ( ures->accessResMat()->initState() != resMatrixBase::ready ) |
---|
4572 | { |
---|
4573 | WerrorS("Error occurred during matrix setup!"); |
---|
4574 | return TRUE; |
---|
4575 | } |
---|
4576 | |
---|
4577 | // if dense resultant, check if minor nonsingular |
---|
4578 | if ( mtype == uResultant::denseResMat ) |
---|
4579 | { |
---|
4580 | smv= ures->accessResMat()->getSubDet(); |
---|
4581 | #ifdef mprDEBUG_PROT |
---|
4582 | PrintS("// Determinant of submatrix: ");nPrint(smv);PrintLn(); |
---|
4583 | #endif |
---|
4584 | if ( nIsZero(smv) ) |
---|
4585 | { |
---|
4586 | WerrorS("Unsuitable input ideal: Minor of resultant matrix is singular!"); |
---|
4587 | return TRUE; |
---|
4588 | } |
---|
4589 | } |
---|
4590 | |
---|
4591 | // main task 2: Interpolate specialized resultant polynomials |
---|
4592 | if ( interpolate_det ) |
---|
4593 | iproots= ures->interpolateDenseSP( false, smv ); |
---|
4594 | else |
---|
4595 | iproots= ures->specializeInU( false, smv ); |
---|
4596 | |
---|
4597 | // main task 3: Interpolate specialized resultant polynomials |
---|
4598 | if ( interpolate_det ) |
---|
4599 | muiproots= ures->interpolateDenseSP( true, smv ); |
---|
4600 | else |
---|
4601 | muiproots= ures->specializeInU( true, smv ); |
---|
4602 | |
---|
4603 | #ifdef mprDEBUG_PROT |
---|
4604 | int c= iproots[0]->getAnzElems(); |
---|
4605 | for (i=0; i < c; i++) pWrite(iproots[i]->getPoly()); |
---|
4606 | c= muiproots[0]->getAnzElems(); |
---|
4607 | for (i=0; i < c; i++) pWrite(muiproots[i]->getPoly()); |
---|
4608 | #endif |
---|
4609 | |
---|
4610 | // main task 4: Compute roots of specialized polys and match them up |
---|
4611 | arranger= new rootArranger( iproots, muiproots, howclean ); |
---|
4612 | arranger->solve_all(); |
---|
4613 | |
---|
4614 | // get list of roots |
---|
4615 | if ( arranger->success() ) |
---|
4616 | { |
---|
4617 | arranger->arrange(); |
---|
4618 | listofroots= listOfRoots(arranger, gmp_output_digits ); |
---|
4619 | } |
---|
4620 | else |
---|
4621 | { |
---|
4622 | WerrorS("Solver was unable to find any roots!"); |
---|
4623 | return TRUE; |
---|
4624 | } |
---|
4625 | |
---|
4626 | // free everything |
---|
4627 | count= iproots[0]->getAnzElems(); |
---|
4628 | for (i=0; i < count; i++) delete iproots[i]; |
---|
4629 | omFreeSize( (ADDRESS) iproots, count * sizeof(rootContainer*) ); |
---|
4630 | count= muiproots[0]->getAnzElems(); |
---|
4631 | for (i=0; i < count; i++) delete muiproots[i]; |
---|
4632 | omFreeSize( (ADDRESS) muiproots, count * sizeof(rootContainer*) ); |
---|
4633 | |
---|
4634 | delete ures; |
---|
4635 | delete arranger; |
---|
4636 | nDelete( &smv ); |
---|
4637 | |
---|
4638 | res->data= (void *)listofroots; |
---|
4639 | |
---|
4640 | //emptylist->Clean(); |
---|
4641 | // omFreeSize( (ADDRESS) emptylist, sizeof(slists) ); |
---|
4642 | |
---|
4643 | return FALSE; |
---|
4644 | } |
---|
4645 | |
---|
4646 | // from mpr_numeric.cc |
---|
4647 | lists listOfRoots( rootArranger* self, const unsigned int oprec ) |
---|
4648 | { |
---|
4649 | int i,j; |
---|
4650 | int count= self->roots[0]->getAnzRoots(); // number of roots |
---|
4651 | int elem= self->roots[0]->getAnzElems(); // number of koordinates per root |
---|
4652 | |
---|
4653 | lists listofroots= (lists)omAlloc( sizeof(slists) ); // must be done this way! |
---|
4654 | |
---|
4655 | if ( self->found_roots ) |
---|
4656 | { |
---|
4657 | listofroots->Init( count ); |
---|
4658 | |
---|
4659 | for (i=0; i < count; i++) |
---|
4660 | { |
---|
4661 | lists onepoint= (lists)omAlloc(sizeof(slists)); // must be done this way! |
---|
4662 | onepoint->Init(elem); |
---|
4663 | for ( j= 0; j < elem; j++ ) |
---|
4664 | { |
---|
4665 | if ( !rField_is_long_C(currRing) ) |
---|
4666 | { |
---|
4667 | onepoint->m[j].rtyp=STRING_CMD; |
---|
4668 | onepoint->m[j].data=(void *)complexToStr((*self->roots[j])[i],oprec, currRing->cf); |
---|
4669 | } |
---|
4670 | else |
---|
4671 | { |
---|
4672 | onepoint->m[j].rtyp=NUMBER_CMD; |
---|
4673 | onepoint->m[j].data=(void *)n_Copy((number)(self->roots[j]->getRoot(i)), currRing->cf); |
---|
4674 | } |
---|
4675 | onepoint->m[j].next= NULL; |
---|
4676 | onepoint->m[j].name= NULL; |
---|
4677 | } |
---|
4678 | listofroots->m[i].rtyp=LIST_CMD; |
---|
4679 | listofroots->m[i].data=(void *)onepoint; |
---|
4680 | listofroots->m[j].next= NULL; |
---|
4681 | listofroots->m[j].name= NULL; |
---|
4682 | } |
---|
4683 | |
---|
4684 | } |
---|
4685 | else |
---|
4686 | { |
---|
4687 | listofroots->Init( 0 ); |
---|
4688 | } |
---|
4689 | |
---|
4690 | return listofroots; |
---|
4691 | } |
---|
4692 | |
---|
4693 | // from ring.cc |
---|
4694 | void rSetHdl(idhdl h) |
---|
4695 | { |
---|
4696 | ring rg = NULL; |
---|
4697 | if (h!=NULL) |
---|
4698 | { |
---|
4699 | // Print(" new ring:%s (l:%d)\n",IDID(h),IDLEV(h)); |
---|
4700 | rg = IDRING(h); |
---|
4701 | if (rg==NULL) return; //id <>NULL, ring==NULL |
---|
4702 | omCheckAddrSize((ADDRESS)h,sizeof(idrec)); |
---|
4703 | if (IDID(h)) // OB: ???? |
---|
4704 | omCheckAddr((ADDRESS)IDID(h)); |
---|
4705 | rTest(rg); |
---|
4706 | } |
---|
4707 | |
---|
4708 | // clean up history |
---|
4709 | if (sLastPrinted.RingDependend()) |
---|
4710 | { |
---|
4711 | sLastPrinted.CleanUp(); |
---|
4712 | memset(&sLastPrinted,0,sizeof(sleftv)); |
---|
4713 | } |
---|
4714 | |
---|
4715 | // test for valid "currRing": |
---|
4716 | if ((rg!=NULL) && (rg->idroot==NULL)) |
---|
4717 | { |
---|
4718 | ring old=rg; |
---|
4719 | rg=rAssure_HasComp(rg); |
---|
4720 | if (old!=rg) |
---|
4721 | { |
---|
4722 | rKill(old); |
---|
4723 | IDRING(h)=rg; |
---|
4724 | } |
---|
4725 | } |
---|
4726 | /*------------ change the global ring -----------------------*/ |
---|
4727 | rChangeCurrRing(rg); |
---|
4728 | currRingHdl = h; |
---|
4729 | } |
---|
4730 | |
---|
4731 | BOOLEAN rSleftvOrdering2Ordering(sleftv *ord, ring R) |
---|
4732 | { |
---|
4733 | int last = 0, o=0, n = 1, i=0, typ = 1, j; |
---|
4734 | sleftv *sl = ord; |
---|
4735 | |
---|
4736 | // determine nBlocks |
---|
4737 | while (sl!=NULL) |
---|
4738 | { |
---|
4739 | intvec *iv = (intvec *)(sl->data); |
---|
4740 | if (((*iv)[1]==ringorder_c)||((*iv)[1]==ringorder_C)) |
---|
4741 | i++; |
---|
4742 | else if ((*iv)[1]==ringorder_L) |
---|
4743 | { |
---|
4744 | R->bitmask=(*iv)[2]; |
---|
4745 | n--; |
---|
4746 | } |
---|
4747 | else if (((*iv)[1]!=ringorder_a) |
---|
4748 | && ((*iv)[1]!=ringorder_a64) |
---|
4749 | && ((*iv)[1]!=ringorder_am)) |
---|
4750 | o++; |
---|
4751 | n++; |
---|
4752 | sl=sl->next; |
---|
4753 | } |
---|
4754 | // check whether at least one real ordering |
---|
4755 | if (o==0) |
---|
4756 | { |
---|
4757 | WerrorS("invalid combination of orderings"); |
---|
4758 | return TRUE; |
---|
4759 | } |
---|
4760 | // if no c/C ordering is given, increment n |
---|
4761 | if (i==0) n++; |
---|
4762 | else if (i != 1) |
---|
4763 | { |
---|
4764 | // throw error if more than one is given |
---|
4765 | WerrorS("more than one ordering c/C specified"); |
---|
4766 | return TRUE; |
---|
4767 | } |
---|
4768 | |
---|
4769 | // initialize fields of R |
---|
4770 | R->order=(int *)omAlloc0(n*sizeof(int)); |
---|
4771 | R->block0=(int *)omAlloc0(n*sizeof(int)); |
---|
4772 | R->block1=(int *)omAlloc0(n*sizeof(int)); |
---|
4773 | R->wvhdl=(int**)omAlloc0(n*sizeof(int_ptr)); |
---|
4774 | |
---|
4775 | int *weights=(int*)omAlloc0((R->N+1)*sizeof(int)); |
---|
4776 | |
---|
4777 | // init order, so that rBlocks works correctly |
---|
4778 | for (j=0; j < n-1; j++) |
---|
4779 | R->order[j] = (int) ringorder_unspec; |
---|
4780 | // set last _C order, if no c/C order was given |
---|
4781 | if (i == 0) R->order[n-2] = ringorder_C; |
---|
4782 | |
---|
4783 | /* init orders */ |
---|
4784 | sl=ord; |
---|
4785 | n=-1; |
---|
4786 | while (sl!=NULL) |
---|
4787 | { |
---|
4788 | intvec *iv; |
---|
4789 | iv = (intvec *)(sl->data); |
---|
4790 | if ((*iv)[1]!=ringorder_L) |
---|
4791 | { |
---|
4792 | n++; |
---|
4793 | |
---|
4794 | /* the format of an ordering: |
---|
4795 | * iv[0]: factor |
---|
4796 | * iv[1]: ordering |
---|
4797 | * iv[2..end]: weights |
---|
4798 | */ |
---|
4799 | R->order[n] = (*iv)[1]; |
---|
4800 | typ=1; |
---|
4801 | switch ((*iv)[1]) |
---|
4802 | { |
---|
4803 | case ringorder_ws: |
---|
4804 | case ringorder_Ws: |
---|
4805 | typ=-1; |
---|
4806 | case ringorder_wp: |
---|
4807 | case ringorder_Wp: |
---|
4808 | R->wvhdl[n]=(int*)omAlloc((iv->length()-1)*sizeof(int)); |
---|
4809 | R->block0[n] = last+1; |
---|
4810 | for (i=2; i<iv->length(); i++) |
---|
4811 | { |
---|
4812 | R->wvhdl[n][i-2] = (*iv)[i]; |
---|
4813 | last++; |
---|
4814 | if (weights[last]==0) weights[last]=(*iv)[i]*typ; |
---|
4815 | } |
---|
4816 | R->block1[n] = last; |
---|
4817 | break; |
---|
4818 | case ringorder_ls: |
---|
4819 | case ringorder_ds: |
---|
4820 | case ringorder_Ds: |
---|
4821 | case ringorder_rs: |
---|
4822 | typ=-1; |
---|
4823 | case ringorder_lp: |
---|
4824 | case ringorder_dp: |
---|
4825 | case ringorder_Dp: |
---|
4826 | case ringorder_rp: |
---|
4827 | R->block0[n] = last+1; |
---|
4828 | if (iv->length() == 3) last+=(*iv)[2]; |
---|
4829 | else last += (*iv)[0]; |
---|
4830 | R->block1[n] = last; |
---|
4831 | //if ((R->block0[n]>R->block1[n]) |
---|
4832 | //|| (R->block1[n]>rVar(R))) |
---|
4833 | //{ |
---|
4834 | // R->block1[n]=rVar(R); |
---|
4835 | // //WerrorS("ordering larger than number of variables"); |
---|
4836 | // break; |
---|
4837 | //} |
---|
4838 | if (rCheckIV(iv)) return TRUE; |
---|
4839 | for(i=si_min(rVar(R),R->block1[n]);i>=R->block0[n];i--) |
---|
4840 | { |
---|
4841 | if (weights[i]==0) weights[i]=typ; |
---|
4842 | } |
---|
4843 | break; |
---|
4844 | |
---|
4845 | case ringorder_s: // no 'rank' params! |
---|
4846 | { |
---|
4847 | |
---|
4848 | if(iv->length() > 3) |
---|
4849 | return TRUE; |
---|
4850 | |
---|
4851 | if(iv->length() == 3) |
---|
4852 | { |
---|
4853 | const int s = (*iv)[2]; |
---|
4854 | R->block0[n] = s; |
---|
4855 | R->block1[n] = s; |
---|
4856 | } |
---|
4857 | break; |
---|
4858 | } |
---|
4859 | case ringorder_IS: |
---|
4860 | { |
---|
4861 | if(iv->length() != 3) return TRUE; |
---|
4862 | |
---|
4863 | const int s = (*iv)[2]; |
---|
4864 | |
---|
4865 | if( 1 < s || s < -1 ) return TRUE; |
---|
4866 | |
---|
4867 | R->block0[n] = s; |
---|
4868 | R->block1[n] = s; |
---|
4869 | break; |
---|
4870 | } |
---|
4871 | case ringorder_S: |
---|
4872 | case ringorder_c: |
---|
4873 | case ringorder_C: |
---|
4874 | { |
---|
4875 | if (rCheckIV(iv)) return TRUE; |
---|
4876 | break; |
---|
4877 | } |
---|
4878 | case ringorder_aa: |
---|
4879 | case ringorder_a: |
---|
4880 | { |
---|
4881 | R->block0[n] = last+1; |
---|
4882 | R->block1[n] = si_min(last+iv->length()-2 , rVar(R)); |
---|
4883 | R->wvhdl[n] = (int*)omAlloc((iv->length()-1)*sizeof(int)); |
---|
4884 | for (i=2; i<iv->length(); i++) |
---|
4885 | { |
---|
4886 | R->wvhdl[n][i-2]=(*iv)[i]; |
---|
4887 | last++; |
---|
4888 | if (weights[last]==0) weights[last]=(*iv)[i]*typ; |
---|
4889 | } |
---|
4890 | last=R->block0[n]-1; |
---|
4891 | break; |
---|
4892 | } |
---|
4893 | case ringorder_am: |
---|
4894 | { |
---|
4895 | R->block0[n] = last+1; |
---|
4896 | R->block1[n] = si_min(last+iv->length()-2 , rVar(R)); |
---|
4897 | R->wvhdl[n] = (int*)omAlloc(iv->length()*sizeof(int)); |
---|
4898 | if (R->block1[n]- R->block0[n]+2>=iv->length()) |
---|
4899 | WarnS("missing module weights"); |
---|
4900 | for (i=2; i<=(R->block1[n]-R->block0[n]+2); i++) |
---|
4901 | { |
---|
4902 | R->wvhdl[n][i-2]=(*iv)[i]; |
---|
4903 | last++; |
---|
4904 | if (weights[last]==0) weights[last]=(*iv)[i]*typ; |
---|
4905 | } |
---|
4906 | R->wvhdl[n][i-2]=iv->length() -3 -(R->block1[n]- R->block0[n]); |
---|
4907 | for (; i<iv->length(); i++) |
---|
4908 | { |
---|
4909 | R->wvhdl[n][i-1]=(*iv)[i]; |
---|
4910 | } |
---|
4911 | last=R->block0[n]-1; |
---|
4912 | break; |
---|
4913 | } |
---|
4914 | case ringorder_a64: |
---|
4915 | { |
---|
4916 | R->block0[n] = last+1; |
---|
4917 | R->block1[n] = si_min(last+iv->length()-2 , rVar(R)); |
---|
4918 | R->wvhdl[n] = (int*)omAlloc((iv->length()-1)*sizeof(int64)); |
---|
4919 | int64 *w=(int64 *)R->wvhdl[n]; |
---|
4920 | for (i=2; i<iv->length(); i++) |
---|
4921 | { |
---|
4922 | w[i-2]=(*iv)[i]; |
---|
4923 | last++; |
---|
4924 | if (weights[last]==0) weights[last]=(*iv)[i]*typ; |
---|
4925 | } |
---|
4926 | last=R->block0[n]-1; |
---|
4927 | break; |
---|
4928 | } |
---|
4929 | case ringorder_M: |
---|
4930 | { |
---|
4931 | int Mtyp=rTypeOfMatrixOrder(iv); |
---|
4932 | if (Mtyp==0) return TRUE; |
---|
4933 | if (Mtyp==-1) typ = -1; |
---|
4934 | |
---|
4935 | R->wvhdl[n] =( int *)omAlloc((iv->length()-1)*sizeof(int)); |
---|
4936 | for (i=2; i<iv->length();i++) |
---|
4937 | R->wvhdl[n][i-2]=(*iv)[i]; |
---|
4938 | |
---|
4939 | R->block0[n] = last+1; |
---|
4940 | last += (int)sqrt((double)(iv->length()-2)); |
---|
4941 | R->block1[n] = last; |
---|
4942 | for(i=si_min(rVar(R),R->block1[n]);i>=R->block0[n];i--) |
---|
4943 | { |
---|
4944 | if (weights[i]==0) weights[i]=typ; |
---|
4945 | } |
---|
4946 | break; |
---|
4947 | } |
---|
4948 | |
---|
4949 | case ringorder_no: |
---|
4950 | R->order[n] = ringorder_unspec; |
---|
4951 | return TRUE; |
---|
4952 | |
---|
4953 | default: |
---|
4954 | Werror("Internal Error: Unknown ordering %d", (*iv)[1]); |
---|
4955 | R->order[n] = ringorder_unspec; |
---|
4956 | return TRUE; |
---|
4957 | } |
---|
4958 | } |
---|
4959 | sl=sl->next; |
---|
4960 | } |
---|
4961 | |
---|
4962 | // check for complete coverage |
---|
4963 | while ( n >= 0 && ( |
---|
4964 | (R->order[n]==ringorder_c) |
---|
4965 | || (R->order[n]==ringorder_C) |
---|
4966 | || (R->order[n]==ringorder_s) |
---|
4967 | || (R->order[n]==ringorder_S) |
---|
4968 | || (R->order[n]==ringorder_IS) |
---|
4969 | )) n--; |
---|
4970 | |
---|
4971 | assume( n >= 0 ); |
---|
4972 | |
---|
4973 | if (R->block1[n] != R->N) |
---|
4974 | { |
---|
4975 | if (((R->order[n]==ringorder_dp) || |
---|
4976 | (R->order[n]==ringorder_ds) || |
---|
4977 | (R->order[n]==ringorder_Dp) || |
---|
4978 | (R->order[n]==ringorder_Ds) || |
---|
4979 | (R->order[n]==ringorder_rp) || |
---|
4980 | (R->order[n]==ringorder_rs) || |
---|
4981 | (R->order[n]==ringorder_lp) || |
---|
4982 | (R->order[n]==ringorder_ls)) |
---|
4983 | && |
---|
4984 | R->block0[n] <= R->N) |
---|
4985 | { |
---|
4986 | R->block1[n] = R->N; |
---|
4987 | } |
---|
4988 | else |
---|
4989 | { |
---|
4990 | Werror("mismatch of number of vars (%d) and ordering (%d vars)", |
---|
4991 | R->N,R->block1[n]); |
---|
4992 | return TRUE; |
---|
4993 | } |
---|
4994 | } |
---|
4995 | // find OrdSgn: |
---|
4996 | R->OrdSgn = 1; |
---|
4997 | for(i=1;i<=R->N;i++) |
---|
4998 | { if (weights[i]<0) { R->OrdSgn=-1;break; }} |
---|
4999 | omFree(weights); |
---|
5000 | return FALSE; |
---|
5001 | } |
---|
5002 | |
---|
5003 | BOOLEAN rSleftvList2StringArray(sleftv* sl, char** p) |
---|
5004 | { |
---|
5005 | |
---|
5006 | while(sl!=NULL) |
---|
5007 | { |
---|
5008 | if (sl->Name() == sNoName) |
---|
5009 | { |
---|
5010 | if (sl->Typ()==POLY_CMD) |
---|
5011 | { |
---|
5012 | sleftv s_sl; |
---|
5013 | iiConvert(POLY_CMD,ANY_TYPE,-1,sl,&s_sl); |
---|
5014 | if (s_sl.Name() != sNoName) |
---|
5015 | *p = omStrDup(s_sl.Name()); |
---|
5016 | else |
---|
5017 | *p = NULL; |
---|
5018 | sl->next = s_sl.next; |
---|
5019 | s_sl.next = NULL; |
---|
5020 | s_sl.CleanUp(); |
---|
5021 | if (*p == NULL) return TRUE; |
---|
5022 | } |
---|
5023 | else |
---|
5024 | return TRUE; |
---|
5025 | } |
---|
5026 | else |
---|
5027 | *p = omStrDup(sl->Name()); |
---|
5028 | p++; |
---|
5029 | sl=sl->next; |
---|
5030 | } |
---|
5031 | return FALSE; |
---|
5032 | } |
---|
5033 | |
---|
5034 | const short MAX_SHORT = 32767; // (1 << (sizeof(short)*8)) - 1; |
---|
5035 | |
---|
5036 | //////////////////// |
---|
5037 | // |
---|
5038 | // rInit itself: |
---|
5039 | // |
---|
5040 | // INPUT: s: name, pn: ch & parameter (names), rv: variable (names) |
---|
5041 | // ord: ordering |
---|
5042 | // RETURN: currRingHdl on success |
---|
5043 | // NULL on error |
---|
5044 | // NOTE: * makes new ring to current ring, on success |
---|
5045 | // * considers input sleftv's as read-only |
---|
5046 | //idhdl rInit(char *s, sleftv* pn, sleftv* rv, sleftv* ord) |
---|
5047 | ring rInit(sleftv* pn, sleftv* rv, sleftv* ord) |
---|
5048 | { |
---|
5049 | #ifdef HAVE_RINGS |
---|
5050 | //unsigned int ringtype = 0; |
---|
5051 | int_number modBase = NULL; |
---|
5052 | unsigned int modExponent = 1; |
---|
5053 | #endif |
---|
5054 | int float_len=0; |
---|
5055 | int float_len2=0; |
---|
5056 | ring R = NULL; |
---|
5057 | //BOOLEAN ffChar=FALSE; |
---|
5058 | |
---|
5059 | /* ch -------------------------------------------------------*/ |
---|
5060 | // get ch of ground field |
---|
5061 | |
---|
5062 | // allocated ring |
---|
5063 | R = (ring) omAlloc0Bin(sip_sring_bin); |
---|
5064 | |
---|
5065 | coeffs cf = NULL; |
---|
5066 | |
---|
5067 | assume( pn != NULL ); |
---|
5068 | const int P = pn->listLength(); |
---|
5069 | |
---|
5070 | if (pn->Typ()==INT_CMD) |
---|
5071 | { |
---|
5072 | int ch = (int)(long)pn->Data(); |
---|
5073 | |
---|
5074 | /* parameter? -------------------------------------------------------*/ |
---|
5075 | pn = pn->next; |
---|
5076 | |
---|
5077 | if (pn == NULL) // no params!? |
---|
5078 | { |
---|
5079 | if (ch!=0) |
---|
5080 | { |
---|
5081 | if (ch<2) |
---|
5082 | { |
---|
5083 | Warn("%d is invalid characteristic of ground field. 32003 is used.", ch); |
---|
5084 | ch=32003; |
---|
5085 | } |
---|
5086 | ch=IsPrime(ch); |
---|
5087 | cf = nInitChar(n_Zp, (void*)(long)ch); |
---|
5088 | } |
---|
5089 | else |
---|
5090 | cf = nInitChar(n_Q, (void*)(long)ch); |
---|
5091 | } |
---|
5092 | else |
---|
5093 | { |
---|
5094 | const int pars = pn->listLength(); |
---|
5095 | |
---|
5096 | assume( pars > 0 ); |
---|
5097 | |
---|
5098 | // predefined finite field: (p^k, a) |
---|
5099 | if ((ch!=0) && (ch!=IsPrime(ch)) && (pars == 1)) |
---|
5100 | { |
---|
5101 | GFInfo param; |
---|
5102 | |
---|
5103 | param.GFChar = ch; |
---|
5104 | param.GFDegree = 1; |
---|
5105 | param.GFPar_name = pn->name; |
---|
5106 | |
---|
5107 | cf = nInitChar(n_GF, ¶m); |
---|
5108 | } |
---|
5109 | else // (0/p, a, b, ..., z) |
---|
5110 | { |
---|
5111 | if ((ch!=0) && (ch!=IsPrime(ch))) |
---|
5112 | { |
---|
5113 | WerrorS("too many parameters"); |
---|
5114 | goto rInitError; |
---|
5115 | } |
---|
5116 | |
---|
5117 | char ** names = (char**)omAlloc0(pars * sizeof(char_ptr)); |
---|
5118 | |
---|
5119 | if (rSleftvList2StringArray(pn, names)) |
---|
5120 | { |
---|
5121 | WerrorS("parameter expected"); |
---|
5122 | goto rInitError; |
---|
5123 | } |
---|
5124 | |
---|
5125 | TransExtInfo extParam; |
---|
5126 | |
---|
5127 | extParam.r = rDefault( ch, pars, names); // Q/Zp [ p_1, ... p_pars ] |
---|
5128 | |
---|
5129 | cf = nInitChar(n_transExt, &extParam); |
---|
5130 | } |
---|
5131 | } |
---|
5132 | |
---|
5133 | // if (cf==NULL) goto rInitError; |
---|
5134 | assume( cf != NULL ); |
---|
5135 | } |
---|
5136 | else if ((pn->name != NULL) |
---|
5137 | && ((strcmp(pn->name,"real")==0) || (strcmp(pn->name,"complex")==0))) |
---|
5138 | { |
---|
5139 | BOOLEAN complex_flag=(strcmp(pn->name,"complex")==0); |
---|
5140 | if ((pn->next!=NULL) && (pn->next->Typ()==INT_CMD)) |
---|
5141 | { |
---|
5142 | float_len=(int)(long)pn->next->Data(); |
---|
5143 | float_len2=float_len; |
---|
5144 | pn=pn->next; |
---|
5145 | if ((pn->next!=NULL) && (pn->next->Typ()==INT_CMD)) |
---|
5146 | { |
---|
5147 | float_len2=(int)(long)pn->next->Data(); |
---|
5148 | pn=pn->next; |
---|
5149 | } |
---|
5150 | } |
---|
5151 | assume( float_len <= float_len2 ); |
---|
5152 | |
---|
5153 | if (!complex_flag) |
---|
5154 | complex_flag= pn->next != NULL; |
---|
5155 | if( !complex_flag && (float_len2 <= (short)SHORT_REAL_LENGTH)) |
---|
5156 | cf=nInitChar(n_R, NULL); |
---|
5157 | else // longR or longC? |
---|
5158 | { |
---|
5159 | LongComplexInfo param; |
---|
5160 | |
---|
5161 | param.float_len = si_min (float_len, 32767); |
---|
5162 | param.float_len2 = si_min (float_len2, 32767); |
---|
5163 | |
---|
5164 | // set the parameter name |
---|
5165 | if (complex_flag) |
---|
5166 | { |
---|
5167 | if (param.float_len < SHORT_REAL_LENGTH) |
---|
5168 | { |
---|
5169 | param.float_len= SHORT_REAL_LENGTH; |
---|
5170 | param.float_len2= SHORT_REAL_LENGTH; |
---|
5171 | } |
---|
5172 | if (pn->next == NULL) |
---|
5173 | param.par_name=(const char*)"i"; //default to i |
---|
5174 | else |
---|
5175 | param.par_name = (const char*)pn->next->name; |
---|
5176 | } |
---|
5177 | |
---|
5178 | cf = nInitChar(complex_flag ? n_long_C: n_long_R, (void*)¶m); |
---|
5179 | } |
---|
5180 | assume( cf != NULL ); |
---|
5181 | } |
---|
5182 | #ifdef HAVE_RINGS |
---|
5183 | else if ((pn->name != NULL) && (strcmp(pn->name, "integer") == 0)) |
---|
5184 | { |
---|
5185 | modBase = (int_number) omAlloc(sizeof(mpz_t)); |
---|
5186 | mpz_init_set_si(modBase, 0); |
---|
5187 | if ((pn->next!=NULL) && (pn->next->Typ()==INT_CMD)) |
---|
5188 | { |
---|
5189 | mpz_set_ui(modBase, (int)(long) pn->next->Data()); |
---|
5190 | pn=pn->next; |
---|
5191 | if ((pn->next!=NULL) && (pn->next->Typ()==INT_CMD)) |
---|
5192 | { |
---|
5193 | modExponent = (long) pn->next->Data(); |
---|
5194 | pn=pn->next; |
---|
5195 | } |
---|
5196 | while ((pn->next!=NULL) && (pn->next->Typ()==INT_CMD)) |
---|
5197 | { |
---|
5198 | mpz_mul_ui(modBase, modBase, (int)(long) pn->next->Data()); |
---|
5199 | pn=pn->next; |
---|
5200 | } |
---|
5201 | } |
---|
5202 | else |
---|
5203 | cf=nInitChar(n_Z,NULL); |
---|
5204 | |
---|
5205 | if ((mpz_cmp_ui(modBase, 1) == 0) && (mpz_cmp_ui(modBase, 0) < 0)) |
---|
5206 | { |
---|
5207 | Werror("Wrong ground ring specification (module is 1)"); |
---|
5208 | goto rInitError; |
---|
5209 | } |
---|
5210 | if (modExponent < 1) |
---|
5211 | { |
---|
5212 | Werror("Wrong ground ring specification (exponent smaller than 1"); |
---|
5213 | goto rInitError; |
---|
5214 | } |
---|
5215 | // module is 0 ---> integers ringtype = 4; |
---|
5216 | // we have an exponent |
---|
5217 | if (modExponent > 1 && cf == NULL) |
---|
5218 | { |
---|
5219 | if ((mpz_cmp_ui(modBase, 2) == 0) && (modExponent <= 8*sizeof(NATNUMBER))) |
---|
5220 | { |
---|
5221 | /* this branch should be active for modExponent = 2..32 resp. 2..64, |
---|
5222 | depending on the size of a long on the respective platform */ |
---|
5223 | //ringtype = 1; // Use Z/2^ch |
---|
5224 | cf=nInitChar(n_Z2m,(void*)(long)modExponent); |
---|
5225 | omFreeSize (modBase, sizeof (mpz_t)); |
---|
5226 | } |
---|
5227 | else |
---|
5228 | { |
---|
5229 | //ringtype = 3; |
---|
5230 | ZnmInfo info; |
---|
5231 | info.base= modBase; |
---|
5232 | info.exp= modExponent; |
---|
5233 | cf=nInitChar(n_Znm,(void*) &info); //exponent is missing |
---|
5234 | } |
---|
5235 | } |
---|
5236 | // just a module m > 1 |
---|
5237 | else if (cf == NULL) |
---|
5238 | { |
---|
5239 | //ringtype = 2; |
---|
5240 | ZnmInfo info; |
---|
5241 | info.base= modBase; |
---|
5242 | info.exp= modExponent; |
---|
5243 | cf=nInitChar(n_Zn,(void*) &info); |
---|
5244 | } |
---|
5245 | assume( cf != NULL ); |
---|
5246 | } |
---|
5247 | #endif |
---|
5248 | // ring NEW = OLD, (), (); where OLD is a polynomial ring... |
---|
5249 | else if ((pn->Typ()==RING_CMD) && (P == 1)) |
---|
5250 | { |
---|
5251 | TransExtInfo extParam; |
---|
5252 | extParam.r = (ring)pn->Data(); |
---|
5253 | cf = nInitChar(n_transExt, &extParam); |
---|
5254 | } |
---|
5255 | else if ((pn->Typ()==QRING_CMD) && (P == 1)) // same for qrings - which should be fields!? |
---|
5256 | { |
---|
5257 | AlgExtInfo extParam; |
---|
5258 | extParam.r = (ring)pn->Data(); |
---|
5259 | |
---|
5260 | cf = nInitChar(n_algExt, &extParam); // Q[a]/<minideal> |
---|
5261 | } |
---|
5262 | else |
---|
5263 | { |
---|
5264 | Werror("Wrong or unknown ground field specification"); |
---|
5265 | #ifndef NDEBUG |
---|
5266 | sleftv* p = pn; |
---|
5267 | while (p != NULL) |
---|
5268 | { |
---|
5269 | Print( "pn[%p]: type: %d [%s]: %p, name: %s", (void*)p, p->Typ(), Tok2Cmdname(p->Typ()), p->Data(), (p->name == NULL? "NULL" : p->name) ); |
---|
5270 | PrintLn(); |
---|
5271 | p = p->next; |
---|
5272 | } |
---|
5273 | #endif |
---|
5274 | goto rInitError; |
---|
5275 | } |
---|
5276 | // pn=pn->next; |
---|
5277 | |
---|
5278 | /*every entry in the new ring is initialized to 0*/ |
---|
5279 | |
---|
5280 | /* characteristic -----------------------------------------------*/ |
---|
5281 | /* input: 0 ch=0 : Q parameter=NULL ffChar=FALSE float_len |
---|
5282 | * 0 1 : Q(a,...) *names FALSE |
---|
5283 | * 0 -1 : R NULL FALSE 0 |
---|
5284 | * 0 -1 : R NULL FALSE prec. >6 |
---|
5285 | * 0 -1 : C *names FALSE prec. 0..? |
---|
5286 | * p p : Fp NULL FALSE |
---|
5287 | * p -p : Fp(a) *names FALSE |
---|
5288 | * q q : GF(q=p^n) *names TRUE |
---|
5289 | */ |
---|
5290 | if (cf==NULL) |
---|
5291 | { |
---|
5292 | const int ch=32003; |
---|
5293 | Warn("Invalid ground field specification: using the default field: Z_{%d}", ch); |
---|
5294 | cf=nInitChar(n_Zp, (void*)(long)ch); |
---|
5295 | } |
---|
5296 | |
---|
5297 | assume( R != NULL ); |
---|
5298 | |
---|
5299 | R->cf = cf; |
---|
5300 | |
---|
5301 | /* names and number of variables-------------------------------------*/ |
---|
5302 | { |
---|
5303 | int l=rv->listLength(); |
---|
5304 | |
---|
5305 | if (l>MAX_SHORT) |
---|
5306 | { |
---|
5307 | Werror("too many ring variables(%d), max is %d",l,MAX_SHORT); |
---|
5308 | goto rInitError; |
---|
5309 | } |
---|
5310 | R->N = l; /*rv->listLength();*/ |
---|
5311 | } |
---|
5312 | R->names = (char **)omAlloc0(R->N * sizeof(char_ptr)); |
---|
5313 | if (rSleftvList2StringArray(rv, R->names)) |
---|
5314 | { |
---|
5315 | WerrorS("name of ring variable expected"); |
---|
5316 | goto rInitError; |
---|
5317 | } |
---|
5318 | |
---|
5319 | /* check names and parameters for conflicts ------------------------- */ |
---|
5320 | rRenameVars(R); // conflicting variables will be renamed |
---|
5321 | /* ordering -------------------------------------------------------------*/ |
---|
5322 | if (rSleftvOrdering2Ordering(ord, R)) |
---|
5323 | goto rInitError; |
---|
5324 | |
---|
5325 | // Complete the initialization |
---|
5326 | if (rComplete(R,1)) |
---|
5327 | goto rInitError; |
---|
5328 | |
---|
5329 | #ifdef HABE_RINGS |
---|
5330 | // currently, coefficients which are ring elements require a global ordering: |
---|
5331 | if (rField_is_Ring(R) && (R->OrdSgn==-1)) |
---|
5332 | { |
---|
5333 | WerrorS("global ordering required for these coefficients"); |
---|
5334 | goto rInitError; |
---|
5335 | } |
---|
5336 | #endif |
---|
5337 | |
---|
5338 | rTest(R); |
---|
5339 | |
---|
5340 | // try to enter the ring into the name list |
---|
5341 | // need to clean up sleftv here, before this ring can be set to |
---|
5342 | // new currRing or currRing can be killed beacuse new ring has |
---|
5343 | // same name |
---|
5344 | if (pn != NULL) pn->CleanUp(); |
---|
5345 | if (rv != NULL) rv->CleanUp(); |
---|
5346 | if (ord != NULL) ord->CleanUp(); |
---|
5347 | //if ((tmp = enterid(s, myynest, RING_CMD, &IDROOT))==NULL) |
---|
5348 | // goto rInitError; |
---|
5349 | |
---|
5350 | //memcpy(IDRING(tmp),R,sizeof(*R)); |
---|
5351 | // set current ring |
---|
5352 | //omFreeBin(R, ip_sring_bin); |
---|
5353 | //return tmp; |
---|
5354 | return R; |
---|
5355 | |
---|
5356 | // error case: |
---|
5357 | rInitError: |
---|
5358 | if ((R != NULL)&&(R->cf!=NULL)) rDelete(R); |
---|
5359 | if (pn != NULL) pn->CleanUp(); |
---|
5360 | if (rv != NULL) rv->CleanUp(); |
---|
5361 | if (ord != NULL) ord->CleanUp(); |
---|
5362 | return NULL; |
---|
5363 | } |
---|
5364 | |
---|
5365 | ring rSubring(ring org_ring, sleftv* rv) |
---|
5366 | { |
---|
5367 | ring R = rCopy0(org_ring); |
---|
5368 | int *perm=(int *)omAlloc0((org_ring->N+1)*sizeof(int)); |
---|
5369 | int n = rBlocks(org_ring), i=0, j; |
---|
5370 | |
---|
5371 | /* names and number of variables-------------------------------------*/ |
---|
5372 | { |
---|
5373 | int l=rv->listLength(); |
---|
5374 | if (l>MAX_SHORT) |
---|
5375 | { |
---|
5376 | Werror("too many ring variables(%d), max is %d",l,MAX_SHORT); |
---|
5377 | goto rInitError; |
---|
5378 | } |
---|
5379 | R->N = l; /*rv->listLength();*/ |
---|
5380 | } |
---|
5381 | omFree(R->names); |
---|
5382 | R->names = (char **)omAlloc0(R->N * sizeof(char_ptr)); |
---|
5383 | if (rSleftvList2StringArray(rv, R->names)) |
---|
5384 | { |
---|
5385 | WerrorS("name of ring variable expected"); |
---|
5386 | goto rInitError; |
---|
5387 | } |
---|
5388 | |
---|
5389 | /* check names for subring in org_ring ------------------------- */ |
---|
5390 | { |
---|
5391 | i=0; |
---|
5392 | |
---|
5393 | for(j=0;j<R->N;j++) |
---|
5394 | { |
---|
5395 | for(;i<org_ring->N;i++) |
---|
5396 | { |
---|
5397 | if (strcmp(org_ring->names[i],R->names[j])==0) |
---|
5398 | { |
---|
5399 | perm[i+1]=j+1; |
---|
5400 | break; |
---|
5401 | } |
---|
5402 | } |
---|
5403 | if (i>org_ring->N) |
---|
5404 | { |
---|
5405 | Werror("variable %d (%s) not in basering",j+1,R->names[j]); |
---|
5406 | break; |
---|
5407 | } |
---|
5408 | } |
---|
5409 | } |
---|
5410 | //Print("perm="); |
---|
5411 | //for(i=1;i<org_ring->N;i++) Print("v%d -> v%d\n",i,perm[i]); |
---|
5412 | /* ordering -------------------------------------------------------------*/ |
---|
5413 | |
---|
5414 | for(i=0;i<n;i++) |
---|
5415 | { |
---|
5416 | int min_var=-1; |
---|
5417 | int max_var=-1; |
---|
5418 | for(j=R->block0[i];j<=R->block1[i];j++) |
---|
5419 | { |
---|
5420 | if (perm[j]>0) |
---|
5421 | { |
---|
5422 | if (min_var==-1) min_var=perm[j]; |
---|
5423 | max_var=perm[j]; |
---|
5424 | } |
---|
5425 | } |
---|
5426 | if (min_var!=-1) |
---|
5427 | { |
---|
5428 | //Print("block %d: old %d..%d, now:%d..%d\n", |
---|
5429 | // i,R->block0[i],R->block1[i],min_var,max_var); |
---|
5430 | R->block0[i]=min_var; |
---|
5431 | R->block1[i]=max_var; |
---|
5432 | if (R->wvhdl[i]!=NULL) |
---|
5433 | { |
---|
5434 | omFree(R->wvhdl[i]); |
---|
5435 | R->wvhdl[i]=(int*)omAlloc0((max_var-min_var+1)*sizeof(int)); |
---|
5436 | for(j=org_ring->block0[i];j<=org_ring->block1[i];j++) |
---|
5437 | { |
---|
5438 | if (perm[j]>0) |
---|
5439 | { |
---|
5440 | R->wvhdl[i][perm[j]-R->block0[i]]= |
---|
5441 | org_ring->wvhdl[i][j-org_ring->block0[i]]; |
---|
5442 | //Print("w%d=%d (orig_w%d)\n",perm[j],R->wvhdl[i][perm[j]-R->block0[i]],j); |
---|
5443 | } |
---|
5444 | } |
---|
5445 | } |
---|
5446 | } |
---|
5447 | else |
---|
5448 | { |
---|
5449 | if(R->block0[i]>0) |
---|
5450 | { |
---|
5451 | //Print("skip block %d\n",i); |
---|
5452 | R->order[i]=ringorder_unspec; |
---|
5453 | if (R->wvhdl[i] !=NULL) omFree(R->wvhdl[i]); |
---|
5454 | R->wvhdl[i]=NULL; |
---|
5455 | } |
---|
5456 | //else Print("keep block %d\n",i); |
---|
5457 | } |
---|
5458 | } |
---|
5459 | i=n-1; |
---|
5460 | while(i>0) |
---|
5461 | { |
---|
5462 | // removed unneded blocks |
---|
5463 | if(R->order[i-1]==ringorder_unspec) |
---|
5464 | { |
---|
5465 | for(j=i;j<=n;j++) |
---|
5466 | { |
---|
5467 | R->order[j-1]=R->order[j]; |
---|
5468 | R->block0[j-1]=R->block0[j]; |
---|
5469 | R->block1[j-1]=R->block1[j]; |
---|
5470 | if (R->wvhdl[j-1] !=NULL) omFree(R->wvhdl[j-1]); |
---|
5471 | R->wvhdl[j-1]=R->wvhdl[j]; |
---|
5472 | } |
---|
5473 | R->order[n]=ringorder_unspec; |
---|
5474 | n--; |
---|
5475 | } |
---|
5476 | i--; |
---|
5477 | } |
---|
5478 | n=rBlocks(org_ring)-1; |
---|
5479 | while (R->order[n]==0) n--; |
---|
5480 | while (R->order[n]==ringorder_unspec) n--; |
---|
5481 | if ((R->order[n]==ringorder_c) || (R->order[n]==ringorder_C)) n--; |
---|
5482 | if (R->block1[n] != R->N) |
---|
5483 | { |
---|
5484 | if (((R->order[n]==ringorder_dp) || |
---|
5485 | (R->order[n]==ringorder_ds) || |
---|
5486 | (R->order[n]==ringorder_Dp) || |
---|
5487 | (R->order[n]==ringorder_Ds) || |
---|
5488 | (R->order[n]==ringorder_rp) || |
---|
5489 | (R->order[n]==ringorder_rs) || |
---|
5490 | (R->order[n]==ringorder_lp) || |
---|
5491 | (R->order[n]==ringorder_ls)) |
---|
5492 | && |
---|
5493 | R->block0[n] <= R->N) |
---|
5494 | { |
---|
5495 | R->block1[n] = R->N; |
---|
5496 | } |
---|
5497 | else |
---|
5498 | { |
---|
5499 | Werror("mismatch of number of vars (%d) and ordering (%d vars) in block %d", |
---|
5500 | R->N,R->block1[n],n); |
---|
5501 | return NULL; |
---|
5502 | } |
---|
5503 | } |
---|
5504 | omFree(perm); |
---|
5505 | // find OrdSgn: |
---|
5506 | R->OrdSgn = org_ring->OrdSgn; // IMPROVE! |
---|
5507 | //for(i=1;i<=R->N;i++) |
---|
5508 | //{ if (weights[i]<0) { R->OrdSgn=-1;break; }} |
---|
5509 | //omFree(weights); |
---|
5510 | // Complete the initialization |
---|
5511 | if (rComplete(R,1)) |
---|
5512 | goto rInitError; |
---|
5513 | |
---|
5514 | rTest(R); |
---|
5515 | |
---|
5516 | if (rv != NULL) rv->CleanUp(); |
---|
5517 | |
---|
5518 | return R; |
---|
5519 | |
---|
5520 | // error case: |
---|
5521 | rInitError: |
---|
5522 | if (R != NULL) rDelete(R); |
---|
5523 | if (rv != NULL) rv->CleanUp(); |
---|
5524 | return NULL; |
---|
5525 | } |
---|
5526 | |
---|
5527 | void rKill(ring r) |
---|
5528 | { |
---|
5529 | if ((r->ref<=0)&&(r->order!=NULL)) |
---|
5530 | { |
---|
5531 | #ifdef RDEBUG |
---|
5532 | if (traceit &TRACE_SHOW_RINGS) Print("kill ring %lx\n",(long)r); |
---|
5533 | #endif |
---|
5534 | if (r->qideal!=NULL) |
---|
5535 | { |
---|
5536 | id_Delete(&r->qideal, r); |
---|
5537 | r->qideal = NULL; |
---|
5538 | } |
---|
5539 | int j; |
---|
5540 | #ifdef USE_IILOCALRING |
---|
5541 | for (j=0;j<iiRETURNEXPR_len;j++) |
---|
5542 | { |
---|
5543 | if (iiLocalRing[j]==r) |
---|
5544 | { |
---|
5545 | if (j<myynest) Warn("killing the basering for level %d",j); |
---|
5546 | iiLocalRing[j]=NULL; |
---|
5547 | } |
---|
5548 | } |
---|
5549 | #else /* USE_IILOCALRING */ |
---|
5550 | //#endif /* USE_IILOCALRING */ |
---|
5551 | { |
---|
5552 | proclevel * nshdl = procstack; |
---|
5553 | int lev=myynest-1; |
---|
5554 | |
---|
5555 | for(; nshdl != NULL; nshdl = nshdl->next) |
---|
5556 | { |
---|
5557 | if (nshdl->cRing==r) |
---|
5558 | { |
---|
5559 | Warn("killing the basering for level %d",lev); |
---|
5560 | nshdl->cRing=NULL; |
---|
5561 | nshdl->cRingHdl=NULL; |
---|
5562 | } |
---|
5563 | } |
---|
5564 | } |
---|
5565 | #endif /* USE_IILOCALRING */ |
---|
5566 | // any variables depending on r ? |
---|
5567 | while (r->idroot!=NULL) |
---|
5568 | { |
---|
5569 | killhdl2(r->idroot,&(r->idroot),r); |
---|
5570 | } |
---|
5571 | if (r==currRing) |
---|
5572 | { |
---|
5573 | // all dependend stuff is done, clean global vars: |
---|
5574 | if (r->qideal!=NULL) |
---|
5575 | { |
---|
5576 | currQuotient=NULL; |
---|
5577 | } |
---|
5578 | if ((currRing->ppNoether)!=NULL) pDelete(&(currRing->ppNoether)); |
---|
5579 | if (sLastPrinted.RingDependend()) |
---|
5580 | { |
---|
5581 | sLastPrinted.CleanUp(); |
---|
5582 | } |
---|
5583 | if ((myynest>0) && (iiRETURNEXPR.RingDependend())) |
---|
5584 | { |
---|
5585 | WerrorS("return value depends on local ring variable (export missing ?)"); |
---|
5586 | iiRETURNEXPR.CleanUp(); |
---|
5587 | } |
---|
5588 | currRing=NULL; |
---|
5589 | currRingHdl=NULL; |
---|
5590 | } |
---|
5591 | |
---|
5592 | /* nKillChar(r); will be called from inside of rDelete */ |
---|
5593 | rDelete(r); |
---|
5594 | return; |
---|
5595 | } |
---|
5596 | r->ref--; |
---|
5597 | } |
---|
5598 | |
---|
5599 | void rKill(idhdl h) |
---|
5600 | { |
---|
5601 | ring r = IDRING(h); |
---|
5602 | int ref=0; |
---|
5603 | if (r!=NULL) |
---|
5604 | { |
---|
5605 | ref=r->ref; |
---|
5606 | rKill(r); |
---|
5607 | } |
---|
5608 | if (h==currRingHdl) |
---|
5609 | { |
---|
5610 | if (ref<=0) { currRing=NULL; currRingHdl=NULL;} |
---|
5611 | else |
---|
5612 | { |
---|
5613 | currRingHdl=rFindHdl(r,currRingHdl,NULL); |
---|
5614 | } |
---|
5615 | } |
---|
5616 | } |
---|
5617 | |
---|
5618 | idhdl rSimpleFindHdl(ring r, idhdl root, idhdl n) |
---|
5619 | { |
---|
5620 | //idhdl next_best=NULL; |
---|
5621 | idhdl h=root; |
---|
5622 | while (h!=NULL) |
---|
5623 | { |
---|
5624 | if (((IDTYP(h)==RING_CMD)||(IDTYP(h)==QRING_CMD)) |
---|
5625 | && (h!=n) |
---|
5626 | && (IDRING(h)==r) |
---|
5627 | ) |
---|
5628 | { |
---|
5629 | // if (IDLEV(h)==myynest) |
---|
5630 | // return h; |
---|
5631 | // if ((IDLEV(h)==0) || (next_best==NULL)) |
---|
5632 | // next_best=h; |
---|
5633 | // else if (IDLEV(next_best)<IDLEV(h)) |
---|
5634 | // next_best=h; |
---|
5635 | return h; |
---|
5636 | } |
---|
5637 | h=IDNEXT(h); |
---|
5638 | } |
---|
5639 | //return next_best; |
---|
5640 | return NULL; |
---|
5641 | } |
---|
5642 | |
---|
5643 | extern BOOLEAN jjPROC(leftv res, leftv u, leftv v); |
---|
5644 | ideal kGroebner(ideal F, ideal Q) |
---|
5645 | { |
---|
5646 | //test|=Sy_bit(OPT_PROT); |
---|
5647 | idhdl save_ringhdl=currRingHdl; |
---|
5648 | ideal resid; |
---|
5649 | idhdl new_ring=NULL; |
---|
5650 | if ((currRingHdl==NULL) || (IDRING(currRingHdl)!=currRing)) |
---|
5651 | { |
---|
5652 | currRingHdl=enterid(omStrDup(" GROEBNERring"),0,RING_CMD,&IDROOT,FALSE); |
---|
5653 | new_ring=currRingHdl; |
---|
5654 | IDRING(currRingHdl)=currRing; |
---|
5655 | } |
---|
5656 | sleftv v; memset(&v,0,sizeof(v)); v.rtyp=IDEAL_CMD; v.data=(char *) F; |
---|
5657 | idhdl h=ggetid("groebner"); |
---|
5658 | sleftv u; memset(&u,0,sizeof(u)); u.rtyp=IDHDL; u.data=(char *) h; |
---|
5659 | u.name=IDID(h); |
---|
5660 | |
---|
5661 | sleftv res; memset(&res,0,sizeof(res)); |
---|
5662 | if(jjPROC(&res,&u,&v)) |
---|
5663 | { |
---|
5664 | resid=kStd(F,Q,testHomog,NULL); |
---|
5665 | } |
---|
5666 | else |
---|
5667 | { |
---|
5668 | //printf("typ:%d\n",res.rtyp); |
---|
5669 | resid=(ideal)(res.data); |
---|
5670 | } |
---|
5671 | // cleanup GROEBNERring, save_ringhdl, u,v,(res ) |
---|
5672 | if (new_ring!=NULL) |
---|
5673 | { |
---|
5674 | idhdl h=IDROOT; |
---|
5675 | if (h==new_ring) IDROOT=h->next; |
---|
5676 | else |
---|
5677 | { |
---|
5678 | while ((h!=NULL) &&(h->next!=new_ring)) h=h->next; |
---|
5679 | if (h!=NULL) h->next=h->next->next; |
---|
5680 | } |
---|
5681 | if (h!=NULL) omFreeSize(h,sizeof(*h)); |
---|
5682 | } |
---|
5683 | currRingHdl=save_ringhdl; |
---|
5684 | u.CleanUp(); |
---|
5685 | v.CleanUp(); |
---|
5686 | return resid; |
---|
5687 | } |
---|
5688 | |
---|
5689 | static void jjINT_S_TO_ID(int n,int *e, leftv res) |
---|
5690 | { |
---|
5691 | if (n==0) n=1; |
---|
5692 | ideal l=idInit(n,1); |
---|
5693 | int i; |
---|
5694 | poly p; |
---|
5695 | for(i=rVar(currRing);i>0;i--) |
---|
5696 | { |
---|
5697 | if (e[i]>0) |
---|
5698 | { |
---|
5699 | n--; |
---|
5700 | p=pOne(); |
---|
5701 | pSetExp(p,i,1); |
---|
5702 | pSetm(p); |
---|
5703 | l->m[n]=p; |
---|
5704 | if (n==0) break; |
---|
5705 | } |
---|
5706 | } |
---|
5707 | res->data=(char*)l; |
---|
5708 | setFlag(res,FLAG_STD); |
---|
5709 | omFreeSize((ADDRESS)e,(rVar(currRing)+1)*sizeof(int)); |
---|
5710 | } |
---|
5711 | BOOLEAN jjVARIABLES_P(leftv res, leftv u) |
---|
5712 | { |
---|
5713 | int *e=(int *)omAlloc0((rVar(currRing)+1)*sizeof(int)); |
---|
5714 | int n=pGetVariables((poly)u->Data(),e); |
---|
5715 | jjINT_S_TO_ID(n,e,res); |
---|
5716 | return FALSE; |
---|
5717 | } |
---|
5718 | |
---|
5719 | BOOLEAN jjVARIABLES_ID(leftv res, leftv u) |
---|
5720 | { |
---|
5721 | int *e=(int *)omAlloc0((rVar(currRing)+1)*sizeof(int)); |
---|
5722 | ideal I=(ideal)u->Data(); |
---|
5723 | int i; |
---|
5724 | int n=0; |
---|
5725 | for(i=I->nrows*I->ncols-1;i>=0;i--) |
---|
5726 | { |
---|
5727 | int n0=pGetVariables(I->m[i],e); |
---|
5728 | if (n0>n) n=n0; |
---|
5729 | } |
---|
5730 | jjINT_S_TO_ID(n,e,res); |
---|
5731 | return FALSE; |
---|
5732 | } |
---|
5733 | |
---|
5734 | void paPrint(const char *n,package p) |
---|
5735 | { |
---|
5736 | Print("%s (",n); |
---|
5737 | switch (p->language) |
---|
5738 | { |
---|
5739 | case LANG_SINGULAR: PrintS("S"); break; |
---|
5740 | case LANG_C: PrintS("C"); break; |
---|
5741 | case LANG_TOP: PrintS("T"); break; |
---|
5742 | case LANG_NONE: PrintS("N"); break; |
---|
5743 | default: PrintS("U"); |
---|
5744 | } |
---|
5745 | if(p->libname!=NULL) |
---|
5746 | Print(",%s", p->libname); |
---|
5747 | PrintS(")"); |
---|
5748 | } |
---|