1 | /**************************************** |
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2 | * Computer Algebra System SINGULAR * |
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3 | ****************************************/ |
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4 | /* $Id$ */ |
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5 | /* |
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6 | * ABSTRACT: |
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7 | */ |
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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 <polys/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 <numeric/mpr_base.h> |
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60 | #include <numeric/mpr_numeric.h> |
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61 | |
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62 | #include <math.h> |
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63 | |
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64 | // define this if you want to use the fast_map routine for mapping ideals |
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65 | #define FAST_MAP |
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66 | |
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67 | #ifdef FAST_MAP |
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68 | #include <kernel/fast_maps.h> |
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69 | #endif |
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70 | |
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71 | leftv iiCurrArgs=NULL; |
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72 | idhdl iiCurrProc=NULL; |
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73 | const char *lastreserved=NULL; |
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74 | |
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75 | static BOOLEAN iiNoKeepRing=TRUE; |
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76 | |
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77 | /*0 implementation*/ |
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78 | |
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79 | const char * iiTwoOps(int t) |
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80 | { |
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81 | if (t<127) |
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82 | { |
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83 | static char ch[2]; |
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84 | switch (t) |
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85 | { |
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86 | case '&': |
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87 | return "and"; |
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88 | case '|': |
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89 | return "or"; |
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90 | default: |
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91 | ch[0]=t; |
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92 | ch[1]='\0'; |
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93 | return ch; |
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94 | } |
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95 | } |
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96 | switch (t) |
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97 | { |
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98 | case COLONCOLON: return "::"; |
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99 | case DOTDOT: return ".."; |
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100 | //case PLUSEQUAL: return "+="; |
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101 | //case MINUSEQUAL: return "-="; |
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102 | case MINUSMINUS: return "--"; |
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103 | case PLUSPLUS: return "++"; |
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104 | case EQUAL_EQUAL: return "=="; |
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105 | case LE: return "<="; |
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106 | case GE: return ">="; |
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107 | case NOTEQUAL: return "<>"; |
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108 | default: return Tok2Cmdname(t); |
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109 | } |
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110 | } |
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111 | |
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112 | static void list1(const char* s, idhdl h,BOOLEAN c, BOOLEAN fullname) |
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113 | { |
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114 | char buffer[22]; |
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115 | int l; |
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116 | char buf2[128]; |
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117 | |
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118 | if(fullname) sprintf(buf2, "%s::%s", "", IDID(h)); |
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119 | else sprintf(buf2, "%s", IDID(h)); |
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120 | |
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121 | Print("%s%-20.20s [%d] ",s,buf2,IDLEV(h)); |
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122 | if (h == currRingHdl) PrintS("*"); |
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123 | PrintS(Tok2Cmdname((int)IDTYP(h))); |
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124 | |
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125 | ipListFlag(h); |
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126 | switch(IDTYP(h)) |
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127 | { |
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128 | case INT_CMD: Print(" %d",IDINT(h)); break; |
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129 | case INTVEC_CMD:Print(" (%d)",IDINTVEC(h)->length()); break; |
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130 | case INTMAT_CMD:Print(" %d x %d",IDINTVEC(h)->rows(),IDINTVEC(h)->cols()); |
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131 | break; |
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132 | case POLY_CMD: |
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133 | case VECTOR_CMD:if (c) |
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134 | { |
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135 | PrintS(" ");wrp(IDPOLY(h)); |
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136 | if(IDPOLY(h) != NULL) |
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137 | { |
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138 | Print(", %d monomial(s)",pLength(IDPOLY(h))); |
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139 | } |
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140 | } |
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141 | break; |
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142 | case MODUL_CMD: Print(", rk %d", (int)(IDIDEAL(h)->rank)); |
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143 | case IDEAL_CMD: Print(", %u generator(s)", |
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144 | IDELEMS(IDIDEAL(h))); break; |
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145 | case MAP_CMD: |
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146 | Print(" from %s",IDMAP(h)->preimage); break; |
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147 | case MATRIX_CMD:Print(" %u x %u" |
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148 | ,MATROWS(IDMATRIX(h)) |
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149 | ,MATCOLS(IDMATRIX(h)) |
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150 | ); |
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151 | break; |
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152 | case PACKAGE_CMD: |
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153 | PrintS(" ("); |
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154 | switch (IDPACKAGE(h)->language) |
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155 | { |
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156 | case LANG_SINGULAR: PrintS("S"); break; |
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157 | case LANG_C: PrintS("C"); break; |
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158 | case LANG_TOP: PrintS("T"); break; |
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159 | case LANG_NONE: PrintS("N"); break; |
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160 | default: PrintS("U"); |
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161 | } |
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162 | if(IDPACKAGE(h)->libname!=NULL) |
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163 | Print(",%s", IDPACKAGE(h)->libname); |
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164 | PrintS(")"); |
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165 | break; |
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166 | case PROC_CMD: if(strlen(IDPROC(h)->libname)>0) |
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167 | Print(" from %s",IDPROC(h)->libname); |
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168 | if(IDPROC(h)->is_static) |
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169 | PrintS(" (static)"); |
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170 | break; |
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171 | case STRING_CMD: |
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172 | { |
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173 | char *s; |
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174 | l=strlen(IDSTRING(h)); |
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175 | memset(buffer,0,22); |
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176 | strncpy(buffer,IDSTRING(h),si_min(l,20)); |
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177 | if ((s=strchr(buffer,'\n'))!=NULL) |
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178 | { |
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179 | *s='\0'; |
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180 | } |
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181 | PrintS(" "); |
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182 | PrintS(buffer); |
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183 | if((s!=NULL) ||(l>20)) |
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184 | { |
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185 | Print("..., %d char(s)",l); |
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186 | } |
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187 | break; |
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188 | } |
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189 | case LIST_CMD: Print(", size: %d",IDLIST(h)->nr+1); |
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190 | break; |
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191 | case QRING_CMD: |
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192 | case RING_CMD: |
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193 | if ((IDRING(h)==currRing) && (currRingHdl!=h)) |
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194 | PrintS("(*)"); /* this is an alias to currRing */ |
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195 | #ifdef RDEBUG |
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196 | if (traceit &TRACE_SHOW_RINGS) |
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197 | Print(" <%lx>",(long)(IDRING(h))); |
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198 | #endif |
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199 | break; |
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200 | /*default: break;*/ |
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201 | } |
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202 | PrintLn(); |
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203 | } |
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204 | |
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205 | void type_cmd(leftv v) |
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206 | { |
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207 | BOOLEAN oldShortOut = FALSE; |
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208 | |
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209 | if (currRing != NULL) |
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210 | { |
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211 | oldShortOut = currRing->ShortOut; |
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212 | currRing->ShortOut = 1; |
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213 | } |
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214 | int t=v->Typ(); |
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215 | Print("// %s %s ",v->Name(),Tok2Cmdname(t)); |
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216 | switch (t) |
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217 | { |
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218 | case MAP_CMD:Print(" from %s\n",((map)(v->Data()))->preimage); break; |
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219 | case INTMAT_CMD: Print(" %d x %d\n",((intvec*)(v->Data()))->rows(), |
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220 | ((intvec*)(v->Data()))->cols()); break; |
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221 | case MATRIX_CMD:Print(" %u x %u\n" , |
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222 | MATROWS((matrix)(v->Data())), |
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223 | MATCOLS((matrix)(v->Data())));break; |
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224 | case MODUL_CMD: Print(", rk %d\n", (int)(((ideal)(v->Data()))->rank));break; |
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225 | case LIST_CMD: Print(", size %d\n",((lists)(v->Data()))->nr+1); break; |
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226 | |
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227 | case PROC_CMD: |
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228 | case RING_CMD: |
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229 | case IDEAL_CMD: |
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230 | case QRING_CMD: PrintLn(); break; |
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231 | |
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232 | //case INT_CMD: |
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233 | //case STRING_CMD: |
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234 | //case INTVEC_CMD: |
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235 | //case POLY_CMD: |
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236 | //case VECTOR_CMD: |
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237 | //case PACKAGE_CMD: |
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238 | |
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239 | default: |
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240 | break; |
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241 | } |
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242 | v->Print(); |
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243 | if (currRing != NULL) |
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244 | currRing->ShortOut = oldShortOut; |
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245 | } |
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246 | |
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247 | static void killlocals0(int v, idhdl * localhdl, const ring r) |
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248 | { |
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249 | idhdl h = *localhdl; |
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250 | while (h!=NULL) |
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251 | { |
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252 | int vv; |
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253 | //Print("consider %s, lev: %d:",IDID(h),IDLEV(h)); |
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254 | if ((vv=IDLEV(h))>0) |
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255 | { |
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256 | if (vv < v) |
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257 | { |
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258 | if (iiNoKeepRing) |
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259 | { |
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260 | //PrintS(" break\n"); |
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261 | return; |
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262 | } |
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263 | h = IDNEXT(h); |
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264 | //PrintLn(); |
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265 | } |
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266 | else //if (vv >= v) |
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267 | { |
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268 | idhdl nexth = IDNEXT(h); |
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269 | killhdl2(h,localhdl,r); |
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270 | h = nexth; |
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271 | //PrintS("kill\n"); |
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272 | } |
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273 | } |
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274 | else |
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275 | { |
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276 | h = IDNEXT(h); |
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277 | //PrintLn(); |
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278 | } |
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279 | } |
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280 | } |
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281 | void killlocals_list(lists l,int v) |
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282 | { |
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283 | int i; |
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284 | for(i=l->nr; i>=0; i--) |
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285 | { |
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286 | if (l->m[i].rtyp == LIST_CMD) |
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287 | killlocals_list((lists)l->m[i].data,v); |
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288 | else if ((l->m[i].rtyp == RING_CMD) || (l->m[i].rtyp == QRING_CMD)) |
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289 | killlocals0(v,&(((ring)(l->m[i].data))->idroot),currRing); |
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290 | } |
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291 | } |
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292 | void killlocals_rec(idhdl *root,int v, ring r) |
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293 | { |
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294 | idhdl h=*root; |
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295 | while (h!=NULL) |
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296 | { |
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297 | if (IDLEV(h)>=v) |
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298 | { |
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299 | // Print("kill %s, lev %d for lev %d\n",IDID(h),IDLEV(h),v); |
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300 | idhdl n=IDNEXT(h); |
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301 | killhdl2(h,root,r); |
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302 | h=n; |
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303 | } |
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304 | else if (IDTYP(h)==PACKAGE_CMD) |
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305 | { |
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306 | // Print("into pack %s, lev %d for lev %d\n",IDID(h),IDLEV(h),v); |
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307 | if (IDPACKAGE(h)!=basePack) |
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308 | killlocals_rec(&(IDRING(h)->idroot),v,r); |
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309 | h=IDNEXT(h); |
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310 | } |
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311 | else if ((IDTYP(h)==RING_CMD) |
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312 | ||(IDTYP(h)==QRING_CMD)) |
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313 | { |
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314 | if ((IDRING(h)!=NULL) && (IDRING(h)->idroot!=NULL)) |
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315 | // we have to test IDRING(h)!=NULL: qring Q=groebner(...): killlocals |
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316 | { |
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317 | // Print("into ring %s, lev %d for lev %d\n",IDID(h),IDLEV(h),v); |
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318 | killlocals_rec(&(IDRING(h)->idroot),v,IDRING(h)); |
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319 | } |
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320 | h=IDNEXT(h); |
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321 | } |
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322 | else |
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323 | { |
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324 | // Print("skip %s lev %d for lev %d\n",IDID(h),IDLEV(h),v); |
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325 | h=IDNEXT(h); |
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326 | } |
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327 | } |
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328 | } |
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329 | BOOLEAN killlocals_list(int v, lists L) |
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330 | { |
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331 | if (L==NULL) return FALSE; |
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332 | BOOLEAN changed=FALSE; |
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333 | int n=L->nr; |
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334 | for(;n>=0;n--) |
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335 | { |
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336 | leftv h=&(L->m[n]); |
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337 | void *d=h->data; |
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338 | if (((h->rtyp==RING_CMD) || (h->rtyp==QRING_CMD)) |
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339 | && (((ring)d)->idroot!=NULL)) |
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340 | { |
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341 | if (d!=currRing) {changed=TRUE;rChangeCurrRing((ring)d);} |
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342 | killlocals0(v,&(((ring)h->data)->idroot),(ring)h->data); |
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343 | } |
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344 | else if (h->rtyp==LIST_CMD) |
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345 | changed|=killlocals_list(v,(lists)d); |
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346 | } |
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347 | return changed; |
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348 | } |
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349 | void killlocals(int v) |
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350 | { |
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351 | BOOLEAN changed=FALSE; |
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352 | idhdl sh=currRingHdl; |
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353 | ring cr=currRing; |
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354 | if (sh!=NULL) changed=((IDLEV(sh)<v) || (IDRING(sh)->ref>0)); |
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355 | //if (changed) Print("currRing=%s(%x), lev=%d,ref=%d\n",IDID(sh),IDRING(sh),IDLEV(sh),IDRING(sh)->ref); |
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356 | |
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357 | killlocals_rec(&(basePack->idroot),v,currRing); |
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358 | |
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359 | if (iiRETURNEXPR_len > myynest) |
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360 | { |
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361 | int t=iiRETURNEXPR[myynest].Typ(); |
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362 | if ((/*iiRETURNEXPR[myynest].Typ()*/ t==RING_CMD) |
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363 | || (/*iiRETURNEXPR[myynest].Typ()*/ t==QRING_CMD)) |
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364 | { |
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365 | leftv h=&iiRETURNEXPR[myynest]; |
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366 | if (((ring)h->data)->idroot!=NULL) |
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367 | killlocals0(v,&(((ring)h->data)->idroot),(ring)h->data); |
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368 | } |
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369 | else if (/*iiRETURNEXPR[myynest].Typ()*/ t==LIST_CMD) |
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370 | { |
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371 | leftv h=&iiRETURNEXPR[myynest]; |
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372 | changed |=killlocals_list(v,(lists)h->data); |
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373 | } |
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374 | } |
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375 | if (changed) |
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376 | { |
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377 | currRingHdl=rFindHdl(cr,NULL,NULL); |
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378 | if (currRingHdl==NULL) |
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379 | currRing=NULL; |
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380 | else |
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381 | rChangeCurrRing(cr); |
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382 | } |
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383 | |
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384 | if (myynest<=1) iiNoKeepRing=TRUE; |
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385 | //Print("end killlocals >= %d\n",v); |
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386 | //listall(); |
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387 | } |
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388 | |
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389 | void list_cmd(int typ, const char* what, const char *prefix,BOOLEAN iterate, BOOLEAN fullname) |
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390 | { |
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391 | idhdl h,start; |
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392 | BOOLEAN all = typ<0; |
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393 | BOOLEAN really_all=FALSE; |
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394 | BOOLEAN do_packages=FALSE; |
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395 | |
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396 | if ( typ == -1 ) do_packages=TRUE; |
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397 | if ( typ==0 ) |
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398 | { |
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399 | if (strcmp(what,"all")==0) |
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400 | { |
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401 | really_all=TRUE; |
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402 | h=basePack->idroot; |
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403 | } |
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404 | else |
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405 | { |
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406 | h = ggetid(what); |
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407 | if (h!=NULL) |
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408 | { |
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409 | if (iterate) list1(prefix,h,TRUE,fullname); |
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410 | if (IDTYP(h)==ALIAS_CMD) PrintS("A"); |
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411 | if ((IDTYP(h)==RING_CMD) |
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412 | || (IDTYP(h)==QRING_CMD) |
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413 | //|| (IDTYP(h)==PACKE_CMD) |
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414 | ) |
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415 | { |
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416 | h=IDRING(h)->idroot; |
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417 | } |
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418 | else if((IDTYP(h)==PACKAGE_CMD) || (IDTYP(h)==POINTER_CMD)) |
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419 | { |
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420 | //Print("list_cmd:package or pointer\n"); |
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421 | all=TRUE;typ=PROC_CMD;fullname=TRUE;really_all=TRUE; |
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422 | h=IDPACKAGE(h)->idroot; |
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423 | } |
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424 | else |
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425 | return; |
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426 | } |
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427 | else |
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428 | { |
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429 | Werror("%s is undefined",what); |
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430 | return; |
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431 | } |
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432 | } |
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433 | all=TRUE; |
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434 | } |
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435 | else if (RingDependend(typ)) |
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436 | { |
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437 | h = currRing->idroot; |
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438 | } |
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439 | else |
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440 | h = IDROOT; |
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441 | start=h; |
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442 | while (h!=NULL) |
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443 | { |
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444 | if ((all && (IDTYP(h)!=PROC_CMD) &&(IDTYP(h)!=PACKAGE_CMD)) |
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445 | || (typ == IDTYP(h)) |
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446 | || ((IDTYP(h)==QRING_CMD) && (typ==RING_CMD))) |
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447 | { |
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448 | list1(prefix,h,start==currRingHdl, fullname); |
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449 | if (((IDTYP(h)==RING_CMD)||(IDTYP(h)==QRING_CMD)) |
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450 | && (really_all || (all && (h==currRingHdl))) |
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451 | && ((IDLEV(h)==0)||(IDLEV(h)==myynest))) |
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452 | { |
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453 | list_cmd(0,IDID(h),"// ",FALSE); |
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454 | } |
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455 | if (IDTYP(h)==PACKAGE_CMD && really_all) |
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456 | { |
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457 | package save_p=currPack; |
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458 | currPack=IDPACKAGE(h); |
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459 | list_cmd(0,IDID(h),"// ",FALSE); |
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460 | currPack=save_p; |
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461 | } |
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462 | } |
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463 | h = IDNEXT(h); |
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464 | } |
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465 | } |
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466 | |
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467 | void test_cmd(int i) |
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468 | { |
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469 | int ii; |
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470 | |
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471 | if (i<0) |
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472 | { |
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473 | ii= -i; |
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474 | if (ii < 32) |
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475 | { |
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476 | test &= ~Sy_bit(ii); |
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477 | } |
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478 | else if (ii < 64) |
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479 | { |
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480 | verbose &= ~Sy_bit(ii-32); |
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481 | } |
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482 | else |
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483 | WerrorS("out of bounds\n"); |
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484 | } |
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485 | else if (i<32) |
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486 | { |
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487 | ii=i; |
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488 | if (Sy_bit(ii) & kOptions) |
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489 | { |
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490 | Warn("Gerhard, use the option command"); |
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491 | test |= Sy_bit(ii); |
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492 | } |
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493 | else if (Sy_bit(ii) & validOpts) |
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494 | test |= Sy_bit(ii); |
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495 | } |
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496 | else if (i<64) |
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497 | { |
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498 | ii=i-32; |
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499 | verbose |= Sy_bit(ii); |
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500 | } |
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501 | else |
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502 | WerrorS("out of bounds\n"); |
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503 | } |
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504 | |
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505 | int exprlist_length(leftv v) |
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506 | { |
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507 | int rc = 0; |
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508 | while (v!=NULL) |
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509 | { |
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510 | switch (v->Typ()) |
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511 | { |
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512 | case INT_CMD: |
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513 | case POLY_CMD: |
---|
514 | case VECTOR_CMD: |
---|
515 | case NUMBER_CMD: |
---|
516 | rc++; |
---|
517 | break; |
---|
518 | case INTVEC_CMD: |
---|
519 | case INTMAT_CMD: |
---|
520 | rc += ((intvec *)(v->Data()))->length(); |
---|
521 | break; |
---|
522 | case MATRIX_CMD: |
---|
523 | case IDEAL_CMD: |
---|
524 | case MODUL_CMD: |
---|
525 | { |
---|
526 | matrix mm = (matrix)(v->Data()); |
---|
527 | rc += mm->rows() * mm->cols(); |
---|
528 | } |
---|
529 | break; |
---|
530 | case LIST_CMD: |
---|
531 | rc+=((lists)v->Data())->nr+1; |
---|
532 | break; |
---|
533 | default: |
---|
534 | rc++; |
---|
535 | } |
---|
536 | v = v->next; |
---|
537 | } |
---|
538 | return rc; |
---|
539 | } |
---|
540 | |
---|
541 | int iiIsPrime0(unsigned p) /* brute force !!!! */ |
---|
542 | { |
---|
543 | unsigned i,j=0 /*only to avoid compiler warnings*/; |
---|
544 | #ifdef HAVE_FACTORY |
---|
545 | if (p<=32749) // max. small prime in factory |
---|
546 | { |
---|
547 | int a=0; |
---|
548 | int e=cf_getNumSmallPrimes()-1; |
---|
549 | i=e/2; |
---|
550 | do |
---|
551 | { |
---|
552 | j=cf_getSmallPrime(i); |
---|
553 | if (p==j) return p; |
---|
554 | if (p<j) e=i-1; |
---|
555 | else a=i+1; |
---|
556 | i=a+(e-a)/2; |
---|
557 | } while ( a<= e); |
---|
558 | if (p>j) return j; |
---|
559 | else return cf_getSmallPrime(i-1); |
---|
560 | } |
---|
561 | #endif |
---|
562 | #ifdef HAVE_FACTORY |
---|
563 | unsigned end_i=cf_getNumSmallPrimes()-1; |
---|
564 | #else |
---|
565 | unsigned end_i=p/2; |
---|
566 | #endif |
---|
567 | unsigned end_p=(unsigned)sqrt((double)p); |
---|
568 | restart: |
---|
569 | for (i=0; i<end_i; i++) |
---|
570 | { |
---|
571 | #ifdef HAVE_FACTORY |
---|
572 | j=cf_getSmallPrime(i); |
---|
573 | #else |
---|
574 | if (i==0) j=2; |
---|
575 | else j=2*i-1; |
---|
576 | #endif |
---|
577 | if ((p%j) == 0) |
---|
578 | { |
---|
579 | #ifdef HAVE_FACTORY |
---|
580 | if (p<=32751) return iiIsPrime0(p-2); |
---|
581 | #endif |
---|
582 | p-=2; |
---|
583 | goto restart; |
---|
584 | } |
---|
585 | if (j > end_p) return p; |
---|
586 | } |
---|
587 | #ifdef HAVE_FACTORY |
---|
588 | if (i>=end_i) |
---|
589 | { |
---|
590 | while(j<=end_p) |
---|
591 | { |
---|
592 | j+=2; |
---|
593 | if ((p%j) == 0) |
---|
594 | { |
---|
595 | if (p<=32751) return iiIsPrime0(p-2); |
---|
596 | p-=2; |
---|
597 | goto restart; |
---|
598 | } |
---|
599 | } |
---|
600 | } |
---|
601 | #endif |
---|
602 | return p; |
---|
603 | } |
---|
604 | int IsPrime(int p) /* brute force !!!! */ |
---|
605 | { |
---|
606 | int i,j; |
---|
607 | if (p == 0) return 0; |
---|
608 | else if (p == 1) return 1/*1*/; |
---|
609 | else if ((p == 2)||(p==3)) return p; |
---|
610 | else if (p < 0) return 2; //(iiIsPrime0((unsigned)(-p))); |
---|
611 | else if ((p & 1)==0) return iiIsPrime0((unsigned)(p-1)); |
---|
612 | return iiIsPrime0((unsigned)(p)); |
---|
613 | } |
---|
614 | |
---|
615 | BOOLEAN iiWRITE(leftv res,leftv v) |
---|
616 | { |
---|
617 | sleftv vf; |
---|
618 | if (iiConvert(v->Typ(),LINK_CMD,iiTestConvert(v->Typ(),LINK_CMD),v,&vf)) |
---|
619 | { |
---|
620 | WerrorS("link expected"); |
---|
621 | return TRUE; |
---|
622 | } |
---|
623 | si_link l=(si_link)vf.Data(); |
---|
624 | if (vf.next == NULL) |
---|
625 | { |
---|
626 | WerrorS("write: need at least two arguments"); |
---|
627 | return TRUE; |
---|
628 | } |
---|
629 | |
---|
630 | BOOLEAN b=slWrite(l,vf.next); /* iiConvert preserves next */ |
---|
631 | if (b) |
---|
632 | { |
---|
633 | const char *s; |
---|
634 | if ((l!=NULL)&&(l->name!=NULL)) s=l->name; |
---|
635 | else s=sNoName; |
---|
636 | Werror("cannot write to %s",s); |
---|
637 | } |
---|
638 | vf.CleanUp(); |
---|
639 | return b; |
---|
640 | } |
---|
641 | |
---|
642 | leftv iiMap(map theMap, const char * what) |
---|
643 | { |
---|
644 | idhdl w,r; |
---|
645 | leftv v; |
---|
646 | int i; |
---|
647 | nMapFunc nMap; |
---|
648 | |
---|
649 | r=IDROOT->get(theMap->preimage,myynest); |
---|
650 | if ((currPack!=basePack) |
---|
651 | &&((r==NULL) || ((r->typ != RING_CMD) && (r->typ != QRING_CMD)))) |
---|
652 | r=basePack->idroot->get(theMap->preimage,myynest); |
---|
653 | if ((r==NULL) && (currRingHdl!=NULL) |
---|
654 | && (strcmp(theMap->preimage,IDID(currRingHdl))==0)) |
---|
655 | { |
---|
656 | r=currRingHdl; |
---|
657 | } |
---|
658 | if ((r!=NULL) && ((r->typ == RING_CMD) || (r->typ== QRING_CMD))) |
---|
659 | { |
---|
660 | //if ((nMap=nSetMap(rInternalChar(IDRING(r)), |
---|
661 | // IDRING(r)->parameter, |
---|
662 | // rPar(IDRING(r)), |
---|
663 | // IDRING(r)->minpoly))) |
---|
664 | if ((nMap=n_SetMap(IDRING(r)->cf, currRing->cf))==NULL) |
---|
665 | { |
---|
666 | ////////// WTF? |
---|
667 | // if (rEqual(IDRING(r),currRing)) |
---|
668 | // { |
---|
669 | // nMap = n_SetMap(currRing->cf, currRing->cf); |
---|
670 | // } |
---|
671 | // else |
---|
672 | // { |
---|
673 | Werror("can not map from ground field of %s to current ground field", |
---|
674 | theMap->preimage); |
---|
675 | return NULL; |
---|
676 | // } |
---|
677 | } |
---|
678 | if (IDELEMS(theMap)<IDRING(r)->N) |
---|
679 | { |
---|
680 | theMap->m=(polyset)omReallocSize((ADDRESS)theMap->m, |
---|
681 | IDELEMS(theMap)*sizeof(poly), |
---|
682 | (IDRING(r)->N)*sizeof(poly)); |
---|
683 | for(i=IDELEMS(theMap);i<IDRING(r)->N;i++) |
---|
684 | theMap->m[i]=NULL; |
---|
685 | IDELEMS(theMap)=IDRING(r)->N; |
---|
686 | } |
---|
687 | if (what==NULL) |
---|
688 | { |
---|
689 | WerrorS("argument of a map must have a name"); |
---|
690 | } |
---|
691 | else if ((w=IDRING(r)->idroot->get(what,myynest))!=NULL) |
---|
692 | { |
---|
693 | char *save_r=NULL; |
---|
694 | v=(leftv)omAlloc0Bin(sleftv_bin); |
---|
695 | sleftv tmpW; |
---|
696 | memset(&tmpW,0,sizeof(sleftv)); |
---|
697 | tmpW.rtyp=IDTYP(w); |
---|
698 | if (tmpW.rtyp==MAP_CMD) |
---|
699 | { |
---|
700 | tmpW.rtyp=IDEAL_CMD; |
---|
701 | save_r=IDMAP(w)->preimage; |
---|
702 | IDMAP(w)->preimage=0; |
---|
703 | } |
---|
704 | tmpW.data=IDDATA(w); |
---|
705 | #if 0 |
---|
706 | if (((tmpW.rtyp==IDEAL_CMD)||(tmpW.rtyp==MODUL_CMD)) && idIs0(IDIDEAL(w))) |
---|
707 | { |
---|
708 | v->rtyp=tmpW.rtyp; |
---|
709 | v->data=idInit(IDELEMS(IDIDEAL(w)),IDIDEAL(w)->rank); |
---|
710 | } |
---|
711 | else |
---|
712 | #endif |
---|
713 | { |
---|
714 | #ifdef FAST_MAP |
---|
715 | if ((tmpW.rtyp==IDEAL_CMD) && (nMap==nCopy) |
---|
716 | #ifdef HAVE_PLURAL |
---|
717 | && (!rIsPluralRing(currRing)) |
---|
718 | #endif |
---|
719 | ) |
---|
720 | { |
---|
721 | v->rtyp=IDEAL_CMD; |
---|
722 | v->data=fast_map(IDIDEAL(w), IDRING(r), (ideal)theMap, currRing); |
---|
723 | } |
---|
724 | else |
---|
725 | #endif |
---|
726 | if (maApplyFetch(MAP_CMD,theMap,v,&tmpW,IDRING(r),NULL,NULL,0,nMap)) |
---|
727 | { |
---|
728 | Werror("cannot map %s(%d)",Tok2Cmdname(w->typ),w->typ); |
---|
729 | omFreeBin((ADDRESS)v, sleftv_bin); |
---|
730 | if (save_r!=NULL) IDMAP(w)->preimage=save_r; |
---|
731 | return NULL; |
---|
732 | } |
---|
733 | } |
---|
734 | if (save_r!=NULL) |
---|
735 | { |
---|
736 | IDMAP(w)->preimage=save_r; |
---|
737 | IDMAP((idhdl)v)->preimage=omStrDup(save_r); |
---|
738 | v->rtyp=MAP_CMD; |
---|
739 | } |
---|
740 | return v; |
---|
741 | } |
---|
742 | else |
---|
743 | { |
---|
744 | Werror("%s undefined in %s",what,theMap->preimage); |
---|
745 | } |
---|
746 | } |
---|
747 | else |
---|
748 | { |
---|
749 | Werror("cannot find preimage %s",theMap->preimage); |
---|
750 | } |
---|
751 | return NULL; |
---|
752 | } |
---|
753 | |
---|
754 | #ifdef OLD_RES |
---|
755 | void iiMakeResolv(resolvente r, int length, int rlen, char * name, int typ0, |
---|
756 | intvec ** weights) |
---|
757 | { |
---|
758 | lists L=liMakeResolv(r,length,rlen,typ0,weights); |
---|
759 | int i=0; |
---|
760 | idhdl h; |
---|
761 | char * s=(char *)omAlloc(strlen(name)+5); |
---|
762 | |
---|
763 | while (i<=L->nr) |
---|
764 | { |
---|
765 | sprintf(s,"%s(%d)",name,i+1); |
---|
766 | if (i==0) |
---|
767 | h=enterid(s,myynest,typ0,&(currRing->idroot), FALSE); |
---|
768 | else |
---|
769 | h=enterid(s,myynest,MODUL_CMD,&(currRing->idroot), FALSE); |
---|
770 | if (h!=NULL) |
---|
771 | { |
---|
772 | h->data.uideal=(ideal)L->m[i].data; |
---|
773 | h->attribute=L->m[i].attribute; |
---|
774 | if (BVERBOSE(V_DEF_RES)) |
---|
775 | Print("//defining: %s as %d-th syzygy module\n",s,i+1); |
---|
776 | } |
---|
777 | else |
---|
778 | { |
---|
779 | idDelete((ideal *)&(L->m[i].data)); |
---|
780 | Warn("cannot define %s",s); |
---|
781 | } |
---|
782 | //L->m[i].data=NULL; |
---|
783 | //L->m[i].rtyp=0; |
---|
784 | //L->m[i].attribute=NULL; |
---|
785 | i++; |
---|
786 | } |
---|
787 | omFreeSize((ADDRESS)L->m,(L->nr+1)*sizeof(sleftv)); |
---|
788 | omFreeBin((ADDRESS)L, slists_bin); |
---|
789 | omFreeSize((ADDRESS)s,strlen(name)+5); |
---|
790 | } |
---|
791 | #endif |
---|
792 | |
---|
793 | //resolvente iiFindRes(char * name, int * len, int *typ0) |
---|
794 | //{ |
---|
795 | // char *s=(char *)omAlloc(strlen(name)+5); |
---|
796 | // int i=-1; |
---|
797 | // resolvente r; |
---|
798 | // idhdl h; |
---|
799 | // |
---|
800 | // do |
---|
801 | // { |
---|
802 | // i++; |
---|
803 | // sprintf(s,"%s(%d)",name,i+1); |
---|
804 | // h=currRing->idroot->get(s,myynest); |
---|
805 | // } while (h!=NULL); |
---|
806 | // *len=i-1; |
---|
807 | // if (*len<=0) |
---|
808 | // { |
---|
809 | // Werror("no objects %s(1),.. found",name); |
---|
810 | // omFreeSize((ADDRESS)s,strlen(name)+5); |
---|
811 | // return NULL; |
---|
812 | // } |
---|
813 | // r=(ideal *)omAlloc(/*(len+1)*/ i*sizeof(ideal)); |
---|
814 | // memset(r,0,(*len)*sizeof(ideal)); |
---|
815 | // i=-1; |
---|
816 | // *typ0=MODUL_CMD; |
---|
817 | // while (i<(*len)) |
---|
818 | // { |
---|
819 | // i++; |
---|
820 | // sprintf(s,"%s(%d)",name,i+1); |
---|
821 | // h=currRing->idroot->get(s,myynest); |
---|
822 | // if (h->typ != MODUL_CMD) |
---|
823 | // { |
---|
824 | // if ((i!=0) || (h->typ!=IDEAL_CMD)) |
---|
825 | // { |
---|
826 | // Werror("%s is not of type module",s); |
---|
827 | // omFreeSize((ADDRESS)r,(*len)*sizeof(ideal)); |
---|
828 | // omFreeSize((ADDRESS)s,strlen(name)+5); |
---|
829 | // return NULL; |
---|
830 | // } |
---|
831 | // *typ0=IDEAL_CMD; |
---|
832 | // } |
---|
833 | // if ((i>0) && (idIs0(r[i-1]))) |
---|
834 | // { |
---|
835 | // *len=i-1; |
---|
836 | // break; |
---|
837 | // } |
---|
838 | // r[i]=IDIDEAL(h); |
---|
839 | // } |
---|
840 | // omFreeSize((ADDRESS)s,strlen(name)+5); |
---|
841 | // return r; |
---|
842 | //} |
---|
843 | |
---|
844 | static resolvente iiCopyRes(resolvente r, int l) |
---|
845 | { |
---|
846 | int i; |
---|
847 | resolvente res=(ideal *)omAlloc0((l+1)*sizeof(ideal)); |
---|
848 | |
---|
849 | for (i=0; i<l; i++) |
---|
850 | res[i]=idCopy(r[i]); |
---|
851 | return res; |
---|
852 | } |
---|
853 | |
---|
854 | BOOLEAN jjMINRES(leftv res, leftv v) |
---|
855 | { |
---|
856 | int len=0; |
---|
857 | int typ0; |
---|
858 | lists L=(lists)v->Data(); |
---|
859 | intvec *weights=(intvec*)atGet(v,"isHomog",INTVEC_CMD); |
---|
860 | int add_row_shift = 0; |
---|
861 | if (weights==NULL) |
---|
862 | weights=(intvec*)atGet(&(L->m[0]),"isHomog",INTVEC_CMD); |
---|
863 | if (weights!=NULL) add_row_shift=weights->min_in(); |
---|
864 | resolvente rr=liFindRes(L,&len,&typ0); |
---|
865 | if (rr==NULL) return TRUE; |
---|
866 | resolvente r=iiCopyRes(rr,len); |
---|
867 | |
---|
868 | syMinimizeResolvente(r,len,0); |
---|
869 | omFreeSize((ADDRESS)rr,len*sizeof(ideal)); |
---|
870 | len++; |
---|
871 | res->data=(char *)liMakeResolv(r,len,-1,typ0,NULL,add_row_shift); |
---|
872 | return FALSE; |
---|
873 | } |
---|
874 | |
---|
875 | BOOLEAN jjBETTI(leftv res, leftv u) |
---|
876 | { |
---|
877 | sleftv tmp; |
---|
878 | memset(&tmp,0,sizeof(tmp)); |
---|
879 | tmp.rtyp=INT_CMD; |
---|
880 | tmp.data=(void *)1; |
---|
881 | if ((u->Typ()==IDEAL_CMD) |
---|
882 | || (u->Typ()==MODUL_CMD)) |
---|
883 | return jjBETTI2_ID(res,u,&tmp); |
---|
884 | else |
---|
885 | return jjBETTI2(res,u,&tmp); |
---|
886 | } |
---|
887 | |
---|
888 | BOOLEAN jjBETTI2_ID(leftv res, leftv u, leftv v) |
---|
889 | { |
---|
890 | lists l=(lists) omAllocBin(slists_bin); |
---|
891 | l->Init(1); |
---|
892 | l->m[0].rtyp=u->Typ(); |
---|
893 | l->m[0].data=u->Data(); |
---|
894 | attr *a=u->Attribute(); |
---|
895 | if (a!=NULL) |
---|
896 | l->m[0].attribute=*a; |
---|
897 | sleftv tmp2; |
---|
898 | memset(&tmp2,0,sizeof(tmp2)); |
---|
899 | tmp2.rtyp=LIST_CMD; |
---|
900 | tmp2.data=(void *)l; |
---|
901 | BOOLEAN r=jjBETTI2(res,&tmp2,v); |
---|
902 | l->m[0].data=NULL; |
---|
903 | l->m[0].attribute=NULL; |
---|
904 | l->m[0].rtyp=DEF_CMD; |
---|
905 | l->Clean(); |
---|
906 | return r; |
---|
907 | } |
---|
908 | |
---|
909 | BOOLEAN jjBETTI2(leftv res, leftv u, leftv v) |
---|
910 | { |
---|
911 | resolvente r; |
---|
912 | int len; |
---|
913 | int reg,typ0; |
---|
914 | lists l=(lists)u->Data(); |
---|
915 | |
---|
916 | intvec *weights=NULL; |
---|
917 | int add_row_shift=0; |
---|
918 | intvec *ww=(intvec *)atGet(&(l->m[0]),"isHomog",INTVEC_CMD); |
---|
919 | if (ww!=NULL) |
---|
920 | { |
---|
921 | weights=ivCopy(ww); |
---|
922 | add_row_shift = ww->min_in(); |
---|
923 | (*weights) -= add_row_shift; |
---|
924 | } |
---|
925 | //Print("attr:%x\n",weights); |
---|
926 | |
---|
927 | r=liFindRes(l,&len,&typ0); |
---|
928 | if (r==NULL) return TRUE; |
---|
929 | res->data=(char *)syBetti(r,len,®,weights,(int)(long)v->Data()); |
---|
930 | omFreeSize((ADDRESS)r,(len)*sizeof(ideal)); |
---|
931 | atSet(res,omStrDup("rowShift"),(void*)add_row_shift,INT_CMD); |
---|
932 | if (weights!=NULL) delete weights; |
---|
933 | return FALSE; |
---|
934 | } |
---|
935 | |
---|
936 | int iiRegularity(lists L) |
---|
937 | { |
---|
938 | int len,reg,typ0; |
---|
939 | |
---|
940 | resolvente r=liFindRes(L,&len,&typ0); |
---|
941 | |
---|
942 | if (r==NULL) |
---|
943 | return -2; |
---|
944 | intvec *weights=NULL; |
---|
945 | int add_row_shift=0; |
---|
946 | intvec *ww=(intvec *)atGet(&(L->m[0]),"isHomog",INTVEC_CMD); |
---|
947 | if (ww!=NULL) |
---|
948 | { |
---|
949 | weights=ivCopy(ww); |
---|
950 | add_row_shift = ww->min_in(); |
---|
951 | (*weights) -= add_row_shift; |
---|
952 | } |
---|
953 | //Print("attr:%x\n",weights); |
---|
954 | |
---|
955 | intvec *dummy=syBetti(r,len,®,weights); |
---|
956 | if (weights!=NULL) delete weights; |
---|
957 | delete dummy; |
---|
958 | omFreeSize((ADDRESS)r,len*sizeof(ideal)); |
---|
959 | return reg+1+add_row_shift; |
---|
960 | } |
---|
961 | |
---|
962 | BOOLEAN iiDebugMarker=TRUE; |
---|
963 | #define BREAK_LINE_LENGTH 80 |
---|
964 | void iiDebug() |
---|
965 | { |
---|
966 | Print("\n-- break point in %s --\n",VoiceName()); |
---|
967 | if (iiDebugMarker) VoiceBackTrack(); |
---|
968 | char * s; |
---|
969 | iiDebugMarker=FALSE; |
---|
970 | s = (char *)omAlloc(BREAK_LINE_LENGTH+4); |
---|
971 | loop |
---|
972 | { |
---|
973 | memset(s,0,80); |
---|
974 | fe_fgets_stdin("",s,BREAK_LINE_LENGTH); |
---|
975 | if (s[BREAK_LINE_LENGTH-1]!='\0') |
---|
976 | { |
---|
977 | Print("line too long, max is %d chars\n",BREAK_LINE_LENGTH); |
---|
978 | } |
---|
979 | else |
---|
980 | break; |
---|
981 | } |
---|
982 | if (*s=='\n') |
---|
983 | { |
---|
984 | iiDebugMarker=TRUE; |
---|
985 | } |
---|
986 | #if MDEBUG |
---|
987 | else if(strncmp(s,"cont;",5)==0) |
---|
988 | { |
---|
989 | iiDebugMarker=TRUE; |
---|
990 | } |
---|
991 | #endif /* MDEBUG */ |
---|
992 | else |
---|
993 | { |
---|
994 | strcat( s, "\n;~\n"); |
---|
995 | newBuffer(s,BT_execute); |
---|
996 | } |
---|
997 | } |
---|
998 | |
---|
999 | lists scIndIndset(ideal S, BOOLEAN all, ideal Q) |
---|
1000 | { |
---|
1001 | int i; |
---|
1002 | indset save; |
---|
1003 | lists res=(lists)omAlloc0Bin(slists_bin); |
---|
1004 | |
---|
1005 | hexist = hInit(S, Q, &hNexist); |
---|
1006 | if (hNexist == 0) |
---|
1007 | { |
---|
1008 | intvec *iv=new intvec(rVar(currRing)); |
---|
1009 | for(i=0; i<rVar(currRing); i++) (*iv)[i]=1; |
---|
1010 | res->Init(1); |
---|
1011 | res->m[0].rtyp=INTVEC_CMD; |
---|
1012 | res->m[0].data=(intvec*)iv; |
---|
1013 | return res; |
---|
1014 | } |
---|
1015 | else if (hisModule!=0) |
---|
1016 | { |
---|
1017 | res->Init(0); |
---|
1018 | return res; |
---|
1019 | } |
---|
1020 | save = ISet = (indset)omAlloc0Bin(indlist_bin); |
---|
1021 | hMu = 0; |
---|
1022 | hwork = (scfmon)omAlloc(hNexist * sizeof(scmon)); |
---|
1023 | hvar = (varset)omAlloc((rVar(currRing) + 1) * sizeof(int)); |
---|
1024 | hpure = (scmon)omAlloc((1 + (rVar(currRing) * rVar(currRing))) * sizeof(long)); |
---|
1025 | hrad = hexist; |
---|
1026 | hNrad = hNexist; |
---|
1027 | radmem = hCreate(rVar(currRing) - 1); |
---|
1028 | hCo = rVar(currRing) + 1; |
---|
1029 | hNvar = rVar(currRing); |
---|
1030 | hRadical(hrad, &hNrad, hNvar); |
---|
1031 | hSupp(hrad, hNrad, hvar, &hNvar); |
---|
1032 | if (hNvar) |
---|
1033 | { |
---|
1034 | hCo = hNvar; |
---|
1035 | memset(hpure, 0, (rVar(currRing) + 1) * sizeof(long)); |
---|
1036 | hPure(hrad, 0, &hNrad, hvar, hNvar, hpure, &hNpure); |
---|
1037 | hLexR(hrad, hNrad, hvar, hNvar); |
---|
1038 | hDimSolve(hpure, hNpure, hrad, hNrad, hvar, hNvar); |
---|
1039 | } |
---|
1040 | if (hCo && (hCo < rVar(currRing))) |
---|
1041 | { |
---|
1042 | hIndMult(hpure, hNpure, hrad, hNrad, hvar, hNvar); |
---|
1043 | } |
---|
1044 | if (hMu!=0) |
---|
1045 | { |
---|
1046 | ISet = save; |
---|
1047 | hMu2 = 0; |
---|
1048 | if (all && (hCo+1 < rVar(currRing))) |
---|
1049 | { |
---|
1050 | JSet = (indset)omAlloc0Bin(indlist_bin); |
---|
1051 | hIndAllMult(hpure, hNpure, hrad, hNrad, hvar, hNvar); |
---|
1052 | i=hMu+hMu2; |
---|
1053 | res->Init(i); |
---|
1054 | if (hMu2 == 0) |
---|
1055 | { |
---|
1056 | omFreeBin((ADDRESS)JSet, indlist_bin); |
---|
1057 | } |
---|
1058 | } |
---|
1059 | else |
---|
1060 | { |
---|
1061 | res->Init(hMu); |
---|
1062 | } |
---|
1063 | for (i=0;i<hMu;i++) |
---|
1064 | { |
---|
1065 | res->m[i].data = (void *)save->set; |
---|
1066 | res->m[i].rtyp = INTVEC_CMD; |
---|
1067 | ISet = save; |
---|
1068 | save = save->nx; |
---|
1069 | omFreeBin((ADDRESS)ISet, indlist_bin); |
---|
1070 | } |
---|
1071 | omFreeBin((ADDRESS)save, indlist_bin); |
---|
1072 | if (hMu2 != 0) |
---|
1073 | { |
---|
1074 | save = JSet; |
---|
1075 | for (i=hMu;i<hMu+hMu2;i++) |
---|
1076 | { |
---|
1077 | res->m[i].data = (void *)save->set; |
---|
1078 | res->m[i].rtyp = INTVEC_CMD; |
---|
1079 | JSet = save; |
---|
1080 | save = save->nx; |
---|
1081 | omFreeBin((ADDRESS)JSet, indlist_bin); |
---|
1082 | } |
---|
1083 | omFreeBin((ADDRESS)save, indlist_bin); |
---|
1084 | } |
---|
1085 | } |
---|
1086 | else |
---|
1087 | { |
---|
1088 | res->Init(0); |
---|
1089 | omFreeBin((ADDRESS)ISet, indlist_bin); |
---|
1090 | } |
---|
1091 | hKill(radmem, rVar(currRing) - 1); |
---|
1092 | omFreeSize((ADDRESS)hpure, (1 + (rVar(currRing) * rVar(currRing))) * sizeof(long)); |
---|
1093 | omFreeSize((ADDRESS)hvar, (rVar(currRing) + 1) * sizeof(int)); |
---|
1094 | omFreeSize((ADDRESS)hwork, hNexist * sizeof(scmon)); |
---|
1095 | hDelete(hexist, hNexist); |
---|
1096 | return res; |
---|
1097 | } |
---|
1098 | |
---|
1099 | int iiDeclCommand(leftv sy, leftv name, int lev,int t, idhdl* root,BOOLEAN isring, BOOLEAN init_b) |
---|
1100 | { |
---|
1101 | BOOLEAN res=FALSE; |
---|
1102 | const char *id = name->name; |
---|
1103 | |
---|
1104 | memset(sy,0,sizeof(sleftv)); |
---|
1105 | if ((name->name==NULL)||(isdigit(name->name[0]))) |
---|
1106 | { |
---|
1107 | WerrorS("object to declare is not a name"); |
---|
1108 | res=TRUE; |
---|
1109 | } |
---|
1110 | else |
---|
1111 | { |
---|
1112 | //if (name->rtyp!=0) |
---|
1113 | //{ |
---|
1114 | // Warn("`%s` is already in use",name->name); |
---|
1115 | //} |
---|
1116 | { |
---|
1117 | sy->data = (char *)enterid(id,lev,t,root,init_b); |
---|
1118 | } |
---|
1119 | if (sy->data!=NULL) |
---|
1120 | { |
---|
1121 | sy->rtyp=IDHDL; |
---|
1122 | currid=sy->name=IDID((idhdl)sy->data); |
---|
1123 | // name->name=NULL; /* used in enterid */ |
---|
1124 | //sy->e = NULL; |
---|
1125 | if (name->next!=NULL) |
---|
1126 | { |
---|
1127 | sy->next=(leftv)omAllocBin(sleftv_bin); |
---|
1128 | res=iiDeclCommand(sy->next,name->next,lev,t,root, isring); |
---|
1129 | } |
---|
1130 | } |
---|
1131 | else res=TRUE; |
---|
1132 | } |
---|
1133 | name->CleanUp(); |
---|
1134 | return res; |
---|
1135 | } |
---|
1136 | |
---|
1137 | BOOLEAN iiDefaultParameter(leftv p) |
---|
1138 | { |
---|
1139 | attr at=NULL; |
---|
1140 | if (iiCurrProc!=NULL) |
---|
1141 | at=iiCurrProc->attribute->get("default_arg"); |
---|
1142 | if (at==NULL) |
---|
1143 | return FALSE; |
---|
1144 | sleftv tmp; |
---|
1145 | memset(&tmp,0,sizeof(sleftv)); |
---|
1146 | tmp.rtyp=at->atyp; |
---|
1147 | tmp.data=at->CopyA(); |
---|
1148 | return iiAssign(p,&tmp); |
---|
1149 | } |
---|
1150 | BOOLEAN iiParameter(leftv p) |
---|
1151 | { |
---|
1152 | if (iiCurrArgs==NULL) |
---|
1153 | { |
---|
1154 | if (strcmp(p->name,"#")==0) |
---|
1155 | return iiDefaultParameter(p); |
---|
1156 | Werror("not enough arguments for proc %s",VoiceName()); |
---|
1157 | p->CleanUp(); |
---|
1158 | return TRUE; |
---|
1159 | } |
---|
1160 | leftv h=iiCurrArgs; |
---|
1161 | if (strcmp(p->name,"#")==0) |
---|
1162 | { |
---|
1163 | iiCurrArgs=NULL; |
---|
1164 | } |
---|
1165 | else |
---|
1166 | { |
---|
1167 | iiCurrArgs=h->next; |
---|
1168 | h->next=NULL; |
---|
1169 | } |
---|
1170 | BOOLEAN res=iiAssign(p,h); |
---|
1171 | h->CleanUp(); |
---|
1172 | omFreeBin((ADDRESS)h, sleftv_bin); |
---|
1173 | return res; |
---|
1174 | } |
---|
1175 | BOOLEAN iiAlias(leftv p) |
---|
1176 | { |
---|
1177 | if (iiCurrArgs==NULL) |
---|
1178 | { |
---|
1179 | Werror("not enough arguments for proc %s",VoiceName()); |
---|
1180 | p->CleanUp(); |
---|
1181 | return TRUE; |
---|
1182 | } |
---|
1183 | leftv h=iiCurrArgs; |
---|
1184 | iiCurrArgs=h->next; |
---|
1185 | h->next=NULL; |
---|
1186 | if (h->rtyp!=IDHDL) |
---|
1187 | { |
---|
1188 | WerrorS("identifier required"); |
---|
1189 | return TRUE; |
---|
1190 | } |
---|
1191 | if (h->Typ()!=p->Typ()) |
---|
1192 | { |
---|
1193 | WerrorS("type mismatch"); |
---|
1194 | return TRUE; |
---|
1195 | } |
---|
1196 | idhdl pp=(idhdl)p->data; |
---|
1197 | switch(pp->typ) |
---|
1198 | { |
---|
1199 | case INT_CMD: |
---|
1200 | break; |
---|
1201 | case INTVEC_CMD: |
---|
1202 | case INTMAT_CMD: |
---|
1203 | delete IDINTVEC(pp); |
---|
1204 | break; |
---|
1205 | case NUMBER_CMD: |
---|
1206 | nDelete(&IDNUMBER(pp)); |
---|
1207 | break; |
---|
1208 | case BIGINT_CMD: |
---|
1209 | n_Delete(&IDNUMBER(pp),currRing->cf); |
---|
1210 | break; |
---|
1211 | case MAP_CMD: |
---|
1212 | { |
---|
1213 | map im = IDMAP(pp); |
---|
1214 | omFree((ADDRESS)im->preimage); |
---|
1215 | } |
---|
1216 | // continue as ideal: |
---|
1217 | case IDEAL_CMD: |
---|
1218 | case MODUL_CMD: |
---|
1219 | case MATRIX_CMD: |
---|
1220 | idDelete(&IDIDEAL(pp)); |
---|
1221 | break; |
---|
1222 | case PROC_CMD: |
---|
1223 | case RESOLUTION_CMD: |
---|
1224 | case STRING_CMD: |
---|
1225 | omFree((ADDRESS)IDSTRING(pp)); |
---|
1226 | break; |
---|
1227 | case LIST_CMD: |
---|
1228 | IDLIST(pp)->Clean(); |
---|
1229 | break; |
---|
1230 | case LINK_CMD: |
---|
1231 | omFreeBin(IDLINK(pp),sip_link_bin); |
---|
1232 | break; |
---|
1233 | // case ring: cannot happen |
---|
1234 | default: |
---|
1235 | Werror("unknown type %d",p->Typ()); |
---|
1236 | return TRUE; |
---|
1237 | } |
---|
1238 | pp->typ=ALIAS_CMD; |
---|
1239 | IDDATA(pp)=(char*)h->data; |
---|
1240 | h->CleanUp(); |
---|
1241 | omFreeBin((ADDRESS)h, sleftv_bin); |
---|
1242 | return FALSE; |
---|
1243 | } |
---|
1244 | |
---|
1245 | static BOOLEAN iiInternalExport (leftv v, int toLev) |
---|
1246 | { |
---|
1247 | idhdl h=(idhdl)v->data; |
---|
1248 | //Print("iiInternalExport('%s',%d)%s\n", v->name, toLev,""); |
---|
1249 | if (IDLEV(h)==0) Warn("`%s` is already global",IDID(h)); |
---|
1250 | else |
---|
1251 | { |
---|
1252 | h=IDROOT->get(v->name,toLev); |
---|
1253 | idhdl *root=&IDROOT; |
---|
1254 | if ((h==NULL)&&(currRing!=NULL)) |
---|
1255 | { |
---|
1256 | h=currRing->idroot->get(v->name,toLev); |
---|
1257 | root=&currRing->idroot; |
---|
1258 | } |
---|
1259 | BOOLEAN keepring=FALSE; |
---|
1260 | if ((h!=NULL)&&(IDLEV(h)==toLev)) |
---|
1261 | { |
---|
1262 | if (IDTYP(h)==v->Typ()) |
---|
1263 | { |
---|
1264 | if (((IDTYP(h)==RING_CMD)||(IDTYP(h)==QRING_CMD)) |
---|
1265 | && (v->Data()==IDDATA(h))) |
---|
1266 | { |
---|
1267 | IDRING(h)->ref++; |
---|
1268 | keepring=TRUE; |
---|
1269 | IDLEV(h)=toLev; |
---|
1270 | //WarnS("keepring"); |
---|
1271 | return FALSE; |
---|
1272 | } |
---|
1273 | if (BVERBOSE(V_REDEFINE)) |
---|
1274 | { |
---|
1275 | Warn("redefining %s",IDID(h)); |
---|
1276 | } |
---|
1277 | #ifdef USE_IILOCALRING |
---|
1278 | if (iiLocalRing[0]==IDRING(h) && (!keepring)) iiLocalRing[0]=NULL; |
---|
1279 | #else |
---|
1280 | proclevel *p=procstack; |
---|
1281 | while (p->next!=NULL) p=p->next; |
---|
1282 | if ((p->cRing==IDRING(h)) && (!keepring)) |
---|
1283 | { |
---|
1284 | p->cRing=NULL; |
---|
1285 | p->cRingHdl=NULL; |
---|
1286 | } |
---|
1287 | #endif |
---|
1288 | killhdl2(h,root,currRing); |
---|
1289 | } |
---|
1290 | else |
---|
1291 | { |
---|
1292 | return TRUE; |
---|
1293 | } |
---|
1294 | } |
---|
1295 | h=(idhdl)v->data; |
---|
1296 | IDLEV(h)=toLev; |
---|
1297 | if (keepring) IDRING(h)->ref--; |
---|
1298 | iiNoKeepRing=FALSE; |
---|
1299 | //Print("export %s\n",IDID(h)); |
---|
1300 | } |
---|
1301 | return FALSE; |
---|
1302 | } |
---|
1303 | |
---|
1304 | BOOLEAN iiInternalExport (leftv v, int toLev, idhdl roothdl) |
---|
1305 | { |
---|
1306 | idhdl h=(idhdl)v->data; |
---|
1307 | if(h==NULL) |
---|
1308 | { |
---|
1309 | Warn("'%s': no such identifier\n", v->name); |
---|
1310 | return FALSE; |
---|
1311 | } |
---|
1312 | package frompack=v->req_packhdl; |
---|
1313 | if (frompack==NULL) frompack=currPack; |
---|
1314 | package rootpack = IDPACKAGE(roothdl); |
---|
1315 | // Print("iiInternalExport('%s',%d,%s->%s) typ:%d\n", v->name, toLev, IDID(currPackHdl),IDID(roothdl),v->Typ()); |
---|
1316 | if ((RingDependend(IDTYP(h))) |
---|
1317 | || ((IDTYP(h)==LIST_CMD) |
---|
1318 | && (lRingDependend(IDLIST(h))) |
---|
1319 | ) |
---|
1320 | ) |
---|
1321 | { |
---|
1322 | //Print("// ==> Ringdependent set nesting to 0\n"); |
---|
1323 | return (iiInternalExport(v, toLev)); |
---|
1324 | } |
---|
1325 | else |
---|
1326 | { |
---|
1327 | IDLEV(h)=toLev; |
---|
1328 | v->req_packhdl=rootpack; |
---|
1329 | if (h==frompack->idroot) |
---|
1330 | { |
---|
1331 | frompack->idroot=h->next; |
---|
1332 | } |
---|
1333 | else |
---|
1334 | { |
---|
1335 | idhdl hh=frompack->idroot; |
---|
1336 | while ((hh!=NULL) && (hh->next!=h)) |
---|
1337 | hh=hh->next; |
---|
1338 | if ((hh!=NULL) && (hh->next==h)) |
---|
1339 | hh->next=h->next; |
---|
1340 | else |
---|
1341 | { |
---|
1342 | Werror("`%s` not found",v->Name()); |
---|
1343 | return TRUE; |
---|
1344 | } |
---|
1345 | } |
---|
1346 | h->next=rootpack->idroot; |
---|
1347 | rootpack->idroot=h; |
---|
1348 | } |
---|
1349 | return FALSE; |
---|
1350 | } |
---|
1351 | |
---|
1352 | BOOLEAN iiExport (leftv v, int toLev) |
---|
1353 | { |
---|
1354 | #ifndef NDEBUG |
---|
1355 | checkall(); |
---|
1356 | #endif |
---|
1357 | BOOLEAN nok=FALSE; |
---|
1358 | leftv r=v; |
---|
1359 | while (v!=NULL) |
---|
1360 | { |
---|
1361 | if ((v->name==NULL)||(v->rtyp==0)||(v->e!=NULL)) |
---|
1362 | { |
---|
1363 | WerrorS("cannot export"); |
---|
1364 | nok=TRUE; |
---|
1365 | } |
---|
1366 | else |
---|
1367 | { |
---|
1368 | if(iiInternalExport(v, toLev)) |
---|
1369 | { |
---|
1370 | r->CleanUp(); |
---|
1371 | return TRUE; |
---|
1372 | } |
---|
1373 | } |
---|
1374 | v=v->next; |
---|
1375 | } |
---|
1376 | r->CleanUp(); |
---|
1377 | #ifndef NDEBUG |
---|
1378 | checkall(); |
---|
1379 | #endif |
---|
1380 | return nok; |
---|
1381 | } |
---|
1382 | |
---|
1383 | /*assume root!=idroot*/ |
---|
1384 | BOOLEAN iiExport (leftv v, int toLev, idhdl root) |
---|
1385 | { |
---|
1386 | #ifndef NDEBUG |
---|
1387 | checkall(); |
---|
1388 | #endif |
---|
1389 | // Print("iiExport1: pack=%s\n",IDID(root)); |
---|
1390 | package pack=IDPACKAGE(root); |
---|
1391 | BOOLEAN nok=FALSE; |
---|
1392 | leftv rv=v; |
---|
1393 | while (v!=NULL) |
---|
1394 | { |
---|
1395 | if ((v->name==NULL)||(v->rtyp==0)||(v->e!=NULL) |
---|
1396 | ) |
---|
1397 | { |
---|
1398 | WerrorS("cannot export"); |
---|
1399 | nok=TRUE; |
---|
1400 | } |
---|
1401 | else |
---|
1402 | { |
---|
1403 | idhdl old=pack->idroot->get( v->name,toLev); |
---|
1404 | if (old!=NULL) |
---|
1405 | { |
---|
1406 | if ((pack==currPack) && (old==(idhdl)v->data)) |
---|
1407 | { |
---|
1408 | Warn("`%s` is already global",IDID(old)); |
---|
1409 | break; |
---|
1410 | } |
---|
1411 | else if (IDTYP(old)==v->Typ()) |
---|
1412 | { |
---|
1413 | if (BVERBOSE(V_REDEFINE)) |
---|
1414 | { |
---|
1415 | Warn("redefining %s",IDID(old)); |
---|
1416 | } |
---|
1417 | v->name=omStrDup(v->name); |
---|
1418 | killhdl2(old,&(pack->idroot),currRing); |
---|
1419 | } |
---|
1420 | else |
---|
1421 | { |
---|
1422 | rv->CleanUp(); |
---|
1423 | return TRUE; |
---|
1424 | } |
---|
1425 | } |
---|
1426 | //Print("iiExport: pack=%s\n",IDID(root)); |
---|
1427 | if(iiInternalExport(v, toLev, root)) |
---|
1428 | { |
---|
1429 | rv->CleanUp(); |
---|
1430 | return TRUE; |
---|
1431 | } |
---|
1432 | } |
---|
1433 | v=v->next; |
---|
1434 | } |
---|
1435 | rv->CleanUp(); |
---|
1436 | #ifndef NDEBUG |
---|
1437 | checkall(); |
---|
1438 | #endif |
---|
1439 | return nok; |
---|
1440 | } |
---|
1441 | |
---|
1442 | BOOLEAN iiCheckRing(int i) |
---|
1443 | { |
---|
1444 | if (currRingHdl==NULL) |
---|
1445 | { |
---|
1446 | #ifdef SIQ |
---|
1447 | if (siq<=0) |
---|
1448 | { |
---|
1449 | #endif |
---|
1450 | if (RingDependend(i)) |
---|
1451 | { |
---|
1452 | WerrorS("no ring active"); |
---|
1453 | return TRUE; |
---|
1454 | } |
---|
1455 | #ifdef SIQ |
---|
1456 | } |
---|
1457 | #endif |
---|
1458 | } |
---|
1459 | return FALSE; |
---|
1460 | } |
---|
1461 | |
---|
1462 | poly iiHighCorner(ideal I, int ak) |
---|
1463 | { |
---|
1464 | int i; |
---|
1465 | if(!idIsZeroDim(I)) return NULL; // not zero-dim. |
---|
1466 | poly po=NULL; |
---|
1467 | if (rHasLocalOrMixedOrdering_currRing()) |
---|
1468 | { |
---|
1469 | scComputeHC(I,currQuotient,ak,po); |
---|
1470 | if (po!=NULL) |
---|
1471 | { |
---|
1472 | pGetCoeff(po)=nInit(1); |
---|
1473 | for (i=rVar(currRing); i>0; i--) |
---|
1474 | { |
---|
1475 | if (pGetExp(po, i) > 0) pDecrExp(po,i); |
---|
1476 | } |
---|
1477 | pSetComp(po,ak); |
---|
1478 | pSetm(po); |
---|
1479 | } |
---|
1480 | } |
---|
1481 | else |
---|
1482 | po=pOne(); |
---|
1483 | return po; |
---|
1484 | } |
---|
1485 | |
---|
1486 | void iiCheckPack(package &p) |
---|
1487 | { |
---|
1488 | if (p==basePack) return; |
---|
1489 | |
---|
1490 | idhdl t=basePack->idroot; |
---|
1491 | |
---|
1492 | while ((t!=NULL) && (IDTYP(t)!=PACKAGE_CMD) && (IDPACKAGE(t)!=p)) t=t->next; |
---|
1493 | |
---|
1494 | if (t==NULL) |
---|
1495 | { |
---|
1496 | WarnS("package not found\n"); |
---|
1497 | p=basePack; |
---|
1498 | } |
---|
1499 | return; |
---|
1500 | } |
---|
1501 | |
---|
1502 | idhdl rDefault(const char *s) |
---|
1503 | { |
---|
1504 | idhdl tmp=NULL; |
---|
1505 | |
---|
1506 | if (s!=NULL) tmp = enterid(s, myynest, RING_CMD, &IDROOT); |
---|
1507 | if (tmp==NULL) return NULL; |
---|
1508 | |
---|
1509 | if (ppNoether!=NULL) pDelete(&ppNoether); |
---|
1510 | if (sLastPrinted.RingDependend()) |
---|
1511 | { |
---|
1512 | sLastPrinted.CleanUp(); |
---|
1513 | memset(&sLastPrinted,0,sizeof(sleftv)); |
---|
1514 | } |
---|
1515 | |
---|
1516 | ring r = IDRING(tmp); |
---|
1517 | |
---|
1518 | r->cf->ch = 32003; |
---|
1519 | r->N = 3; |
---|
1520 | /*r->P = 0; Alloc0 in idhdl::set, ipid.cc*/ |
---|
1521 | /*names*/ |
---|
1522 | r->names = (char **) omAlloc0(3 * sizeof(char_ptr)); |
---|
1523 | r->names[0] = omStrDup("x"); |
---|
1524 | r->names[1] = omStrDup("y"); |
---|
1525 | r->names[2] = omStrDup("z"); |
---|
1526 | /*weights: entries for 3 blocks: NULL*/ |
---|
1527 | r->wvhdl = (int **)omAlloc0(3 * sizeof(int_ptr)); |
---|
1528 | /*order: dp,C,0*/ |
---|
1529 | r->order = (int *) omAlloc(3 * sizeof(int *)); |
---|
1530 | r->block0 = (int *)omAlloc0(3 * sizeof(int *)); |
---|
1531 | r->block1 = (int *)omAlloc0(3 * sizeof(int *)); |
---|
1532 | /* ringorder dp for the first block: var 1..3 */ |
---|
1533 | r->order[0] = ringorder_dp; |
---|
1534 | r->block0[0] = 1; |
---|
1535 | r->block1[0] = 3; |
---|
1536 | /* ringorder C for the second block: no vars */ |
---|
1537 | r->order[1] = ringorder_C; |
---|
1538 | /* the last block: everything is 0 */ |
---|
1539 | r->order[2] = 0; |
---|
1540 | /*polynomial ring*/ |
---|
1541 | r->OrdSgn = 1; |
---|
1542 | |
---|
1543 | /* complete ring intializations */ |
---|
1544 | rComplete(r); |
---|
1545 | rSetHdl(tmp); |
---|
1546 | return currRingHdl; |
---|
1547 | } |
---|
1548 | |
---|
1549 | idhdl rFindHdl(ring r, idhdl n, idhdl w) |
---|
1550 | { |
---|
1551 | idhdl h=rSimpleFindHdl(r,IDROOT,n); |
---|
1552 | if (h!=NULL) return h; |
---|
1553 | if (IDROOT!=basePack->idroot) h=rSimpleFindHdl(r,basePack->idroot,n); |
---|
1554 | if (h!=NULL) return h; |
---|
1555 | proclevel *p=procstack; |
---|
1556 | while(p!=NULL) |
---|
1557 | { |
---|
1558 | if ((p->cPack!=basePack) |
---|
1559 | && (p->cPack!=currPack)) |
---|
1560 | h=rSimpleFindHdl(r,p->cPack->idroot,n); |
---|
1561 | if (h!=NULL) return h; |
---|
1562 | p=p->next; |
---|
1563 | } |
---|
1564 | idhdl tmp=basePack->idroot; |
---|
1565 | while (tmp!=NULL) |
---|
1566 | { |
---|
1567 | if (IDTYP(tmp)==PACKAGE_CMD) |
---|
1568 | h=rSimpleFindHdl(r,IDPACKAGE(tmp)->idroot,n); |
---|
1569 | if (h!=NULL) return h; |
---|
1570 | tmp=IDNEXT(tmp); |
---|
1571 | } |
---|
1572 | return NULL; |
---|
1573 | } |
---|
1574 | |
---|
1575 | void rDecomposeCF(leftv h,const ring r,const ring R) |
---|
1576 | { |
---|
1577 | lists L=(lists)omAlloc0Bin(slists_bin); |
---|
1578 | L->Init(4); |
---|
1579 | h->rtyp=LIST_CMD; |
---|
1580 | h->data=(void *)L; |
---|
1581 | // 0: char/ cf - ring |
---|
1582 | // 1: list (var) |
---|
1583 | // 2: list (ord) |
---|
1584 | // 3: qideal |
---|
1585 | // ---------------------------------------- |
---|
1586 | // 0: char/ cf - ring |
---|
1587 | L->m[0].rtyp=INT_CMD; |
---|
1588 | L->m[0].data=(void *)r->cf->ch; |
---|
1589 | // ---------------------------------------- |
---|
1590 | // 1: list (var) |
---|
1591 | lists LL=(lists)omAlloc0Bin(slists_bin); |
---|
1592 | LL->Init(r->N); |
---|
1593 | int i; |
---|
1594 | for(i=0; i<r->N; i++) |
---|
1595 | { |
---|
1596 | LL->m[i].rtyp=STRING_CMD; |
---|
1597 | LL->m[i].data=(void *)omStrDup(r->names[i]); |
---|
1598 | } |
---|
1599 | L->m[1].rtyp=LIST_CMD; |
---|
1600 | L->m[1].data=(void *)LL; |
---|
1601 | // ---------------------------------------- |
---|
1602 | // 2: list (ord) |
---|
1603 | LL=(lists)omAlloc0Bin(slists_bin); |
---|
1604 | i=rBlocks(r)-1; |
---|
1605 | LL->Init(i); |
---|
1606 | i--; |
---|
1607 | lists LLL; |
---|
1608 | for(; i>=0; i--) |
---|
1609 | { |
---|
1610 | intvec *iv; |
---|
1611 | int j; |
---|
1612 | LL->m[i].rtyp=LIST_CMD; |
---|
1613 | LLL=(lists)omAlloc0Bin(slists_bin); |
---|
1614 | LLL->Init(2); |
---|
1615 | LLL->m[0].rtyp=STRING_CMD; |
---|
1616 | LLL->m[0].data=(void *)omStrDup(rSimpleOrdStr(r->order[i])); |
---|
1617 | if (r->block1[i]-r->block0[i] >=0 ) |
---|
1618 | { |
---|
1619 | j=r->block1[i]-r->block0[i]; |
---|
1620 | if(r->order[i]==ringorder_M) j=(j+1)*(j+1)-1; |
---|
1621 | iv=new intvec(j+1); |
---|
1622 | if ((r->wvhdl!=NULL) && (r->wvhdl[i]!=NULL)) |
---|
1623 | { |
---|
1624 | for(;j>=0; j--) (*iv)[j]=r->wvhdl[i][j]; |
---|
1625 | } |
---|
1626 | else switch (r->order[i]) |
---|
1627 | { |
---|
1628 | case ringorder_dp: |
---|
1629 | case ringorder_Dp: |
---|
1630 | case ringorder_ds: |
---|
1631 | case ringorder_Ds: |
---|
1632 | case ringorder_lp: |
---|
1633 | for(;j>=0; j--) (*iv)[j]=1; |
---|
1634 | break; |
---|
1635 | default: /* do nothing */; |
---|
1636 | } |
---|
1637 | } |
---|
1638 | else |
---|
1639 | { |
---|
1640 | iv=new intvec(1); |
---|
1641 | } |
---|
1642 | LLL->m[1].rtyp=INTVEC_CMD; |
---|
1643 | LLL->m[1].data=(void *)iv; |
---|
1644 | LL->m[i].data=(void *)LLL; |
---|
1645 | } |
---|
1646 | L->m[2].rtyp=LIST_CMD; |
---|
1647 | L->m[2].data=(void *)LL; |
---|
1648 | // ---------------------------------------- |
---|
1649 | // 3: qideal |
---|
1650 | L->m[3].rtyp=IDEAL_CMD; |
---|
1651 | if (R->minpoly==NULL) |
---|
1652 | L->m[3].data=(void *)idInit(1,1); |
---|
1653 | else |
---|
1654 | { |
---|
1655 | ideal I=idInit(1,1); |
---|
1656 | L->m[3].data=(void *)I; |
---|
1657 | I->m[0]=pNSet(R->minpoly); |
---|
1658 | } |
---|
1659 | // ---------------------------------------- |
---|
1660 | } |
---|
1661 | void rDecomposeC(leftv h,const ring R) |
---|
1662 | /* field is R or C */ |
---|
1663 | { |
---|
1664 | lists L=(lists)omAlloc0Bin(slists_bin); |
---|
1665 | if (rField_is_long_C(R)) L->Init(3); |
---|
1666 | else L->Init(2); |
---|
1667 | h->rtyp=LIST_CMD; |
---|
1668 | h->data=(void *)L; |
---|
1669 | // 0: char/ cf - ring |
---|
1670 | // 1: list (var) |
---|
1671 | // 2: list (ord) |
---|
1672 | // ---------------------------------------- |
---|
1673 | // 0: char/ cf - ring |
---|
1674 | L->m[0].rtyp=INT_CMD; |
---|
1675 | L->m[0].data=(void *)0; |
---|
1676 | // ---------------------------------------- |
---|
1677 | // 1: |
---|
1678 | lists LL=(lists)omAlloc0Bin(slists_bin); |
---|
1679 | LL->Init(2); |
---|
1680 | LL->m[0].rtyp=INT_CMD; |
---|
1681 | LL->m[0].data=(void *)si_max(R->float_len,SHORT_REAL_LENGTH/2); |
---|
1682 | LL->m[1].rtyp=INT_CMD; |
---|
1683 | LL->m[1].data=(void *)si_max(R->float_len2,SHORT_REAL_LENGTH); |
---|
1684 | L->m[1].rtyp=LIST_CMD; |
---|
1685 | L->m[1].data=(void *)LL; |
---|
1686 | // ---------------------------------------- |
---|
1687 | // 2: list (par) |
---|
1688 | if (rField_is_long_C(R)) |
---|
1689 | { |
---|
1690 | L->m[2].rtyp=STRING_CMD; |
---|
1691 | L->m[2].data=(void *)omStrDup(rParameter(R)[0]); |
---|
1692 | } |
---|
1693 | // ---------------------------------------- |
---|
1694 | } |
---|
1695 | |
---|
1696 | #ifdef HAVE_RINGS |
---|
1697 | void rDecomposeRing(leftv h,const ring R) |
---|
1698 | /* field is R or C */ |
---|
1699 | { |
---|
1700 | lists L=(lists)omAlloc0Bin(slists_bin); |
---|
1701 | if (rField_is_Ring_Z(R)) L->Init(1); |
---|
1702 | else L->Init(2); |
---|
1703 | h->rtyp=LIST_CMD; |
---|
1704 | h->data=(void *)L; |
---|
1705 | // 0: char/ cf - ring |
---|
1706 | // 1: list (module) |
---|
1707 | // ---------------------------------------- |
---|
1708 | // 0: char/ cf - ring |
---|
1709 | L->m[0].rtyp=STRING_CMD; |
---|
1710 | L->m[0].data=(void *)omStrDup("integer"); |
---|
1711 | // ---------------------------------------- |
---|
1712 | // 1: module |
---|
1713 | if (rField_is_Ring_Z(R)) return; |
---|
1714 | lists LL=(lists)omAlloc0Bin(slists_bin); |
---|
1715 | LL->Init(2); |
---|
1716 | LL->m[0].rtyp=BIGINT_CMD; |
---|
1717 | LL->m[0].data=nlMapGMP((number) R->cf->modBase, R->cf, R->cf); |
---|
1718 | LL->m[1].rtyp=INT_CMD; |
---|
1719 | LL->m[1].data=(void *) R->cf->modExponent; |
---|
1720 | L->m[1].rtyp=LIST_CMD; |
---|
1721 | L->m[1].data=(void *)LL; |
---|
1722 | } |
---|
1723 | #endif |
---|
1724 | |
---|
1725 | |
---|
1726 | lists rDecompose(const ring r) |
---|
1727 | { |
---|
1728 | // sanity check: require currRing==r for rings with polynomial data |
---|
1729 | if ((r!=currRing) |
---|
1730 | && ((r->minpoly!=NULL) || (r->qideal!=NULL) || (r->minideal!=NULL) |
---|
1731 | #ifdef HAVE_PLURAL |
---|
1732 | || (rIsPluralRing(r)) |
---|
1733 | #endif |
---|
1734 | )) |
---|
1735 | { |
---|
1736 | WerrorS("ring with polynomial data must be the base ring or compatible"); |
---|
1737 | return NULL; |
---|
1738 | } |
---|
1739 | // 0: char/ cf - ring |
---|
1740 | // 1: list (var) |
---|
1741 | // 2: list (ord) |
---|
1742 | // 3: qideal |
---|
1743 | // possibly: |
---|
1744 | // 4: C |
---|
1745 | // 5: D |
---|
1746 | lists L=(lists)omAlloc0Bin(slists_bin); |
---|
1747 | if (rIsPluralRing(r)) |
---|
1748 | L->Init(6); |
---|
1749 | else |
---|
1750 | L->Init(4); |
---|
1751 | // ---------------------------------------- |
---|
1752 | // 0: char/ cf - ring |
---|
1753 | #if 1 /* TODO */ |
---|
1754 | if (rField_is_numeric(r)) |
---|
1755 | { |
---|
1756 | rDecomposeC(&(L->m[0]),r); |
---|
1757 | } |
---|
1758 | #ifdef HAVE_RINGS |
---|
1759 | else if (rField_is_Ring(r)) |
---|
1760 | { |
---|
1761 | rDecomposeRing(&(L->m[0]),r); |
---|
1762 | } |
---|
1763 | #endif |
---|
1764 | else if (rIsExtension(r)) |
---|
1765 | { |
---|
1766 | if (nCoeff_is_algExt(r->cf)) |
---|
1767 | rDecomposeCF(&(L->m[0]),r->cf->extRing,r); |
---|
1768 | else |
---|
1769 | { |
---|
1770 | lists Lc=(lists)omAlloc0Bin(slists_bin); |
---|
1771 | Lc->Init(4); |
---|
1772 | // char: |
---|
1773 | Lc->m[0].rtyp=INT_CMD; |
---|
1774 | Lc->m[0].data=(void*)r->cf->ch; |
---|
1775 | // var: |
---|
1776 | lists Lv=(lists)omAlloc0Bin(slists_bin); |
---|
1777 | Lv->Init(1); |
---|
1778 | Lv->m[0].rtyp=STRING_CMD; |
---|
1779 | Lv->m[0].data=(void *)omStrDup(rParameter(r)[0]); |
---|
1780 | Lc->m[1].rtyp=LIST_CMD; |
---|
1781 | Lc->m[1].data=(void*)Lv; |
---|
1782 | // ord: |
---|
1783 | lists Lo=(lists)omAlloc0Bin(slists_bin); |
---|
1784 | Lo->Init(1); |
---|
1785 | lists Loo=(lists)omAlloc0Bin(slists_bin); |
---|
1786 | Loo->Init(2); |
---|
1787 | Loo->m[0].rtyp=STRING_CMD; |
---|
1788 | Loo->m[0].data=(void *)omStrDup(rSimpleOrdStr(ringorder_lp)); |
---|
1789 | intvec *iv=new intvec(1); (*iv)[0]=1; |
---|
1790 | Loo->m[1].rtyp=INTVEC_CMD; |
---|
1791 | Loo->m[1].data=(void *)iv; |
---|
1792 | Lo->m[0].rtyp=LIST_CMD; |
---|
1793 | Lo->m[0].data=(void*)Loo; |
---|
1794 | |
---|
1795 | Lc->m[2].rtyp=LIST_CMD; |
---|
1796 | Lc->m[2].data=(void*)Lo; |
---|
1797 | // q-ideal: |
---|
1798 | Lc->m[3].rtyp=IDEAL_CMD; |
---|
1799 | Lc->m[3].data=(void *)idInit(1,1); |
---|
1800 | // ---------------------- |
---|
1801 | L->m[0].rtyp=LIST_CMD; |
---|
1802 | L->m[0].data=(void*)Lc; |
---|
1803 | } |
---|
1804 | if (L->m[0].rtyp==0) |
---|
1805 | { |
---|
1806 | //omFreeBin(slists_bin,(void *)L); |
---|
1807 | return NULL; |
---|
1808 | } |
---|
1809 | } |
---|
1810 | else |
---|
1811 | #endif |
---|
1812 | { |
---|
1813 | L->m[0].rtyp=INT_CMD; |
---|
1814 | L->m[0].data=(void *)r->cf->ch; |
---|
1815 | } |
---|
1816 | // ---------------------------------------- |
---|
1817 | // 1: list (var) |
---|
1818 | lists LL=(lists)omAlloc0Bin(slists_bin); |
---|
1819 | LL->Init(r->N); |
---|
1820 | int i; |
---|
1821 | for(i=0; i<r->N; i++) |
---|
1822 | { |
---|
1823 | LL->m[i].rtyp=STRING_CMD; |
---|
1824 | LL->m[i].data=(void *)omStrDup(r->names[i]); |
---|
1825 | } |
---|
1826 | L->m[1].rtyp=LIST_CMD; |
---|
1827 | L->m[1].data=(void *)LL; |
---|
1828 | // ---------------------------------------- |
---|
1829 | // 2: list (ord) |
---|
1830 | LL=(lists)omAlloc0Bin(slists_bin); |
---|
1831 | i=rBlocks(r)-1; |
---|
1832 | LL->Init(i); |
---|
1833 | i--; |
---|
1834 | lists LLL; |
---|
1835 | for(; i>=0; i--) |
---|
1836 | { |
---|
1837 | intvec *iv; |
---|
1838 | int j; |
---|
1839 | LL->m[i].rtyp=LIST_CMD; |
---|
1840 | LLL=(lists)omAlloc0Bin(slists_bin); |
---|
1841 | LLL->Init(2); |
---|
1842 | LLL->m[0].rtyp=STRING_CMD; |
---|
1843 | LLL->m[0].data=(void *)omStrDup(rSimpleOrdStr(r->order[i])); |
---|
1844 | |
---|
1845 | if(r->order[i] == ringorder_IS) // || r->order[i] == ringorder_s || r->order[i] == ringorder_S) |
---|
1846 | { |
---|
1847 | assume( r->block0[i] == r->block1[i] ); |
---|
1848 | const int s = r->block0[i]; |
---|
1849 | assume( -2 < s && s < 2); |
---|
1850 | |
---|
1851 | iv=new intvec(1); |
---|
1852 | (*iv)[0] = s; |
---|
1853 | } else |
---|
1854 | if (r->block1[i]-r->block0[i] >=0 ) |
---|
1855 | { |
---|
1856 | j=r->block1[i]-r->block0[i]; |
---|
1857 | if (r->order[i]==ringorder_M) j=(j+1)*(j+1)-1; |
---|
1858 | iv=new intvec(j+1); |
---|
1859 | if ((r->wvhdl!=NULL) && (r->wvhdl[i]!=NULL)) |
---|
1860 | { |
---|
1861 | for(;j>=0; j--) (*iv)[j]=r->wvhdl[i][j]; |
---|
1862 | } |
---|
1863 | else switch (r->order[i]) |
---|
1864 | { |
---|
1865 | case ringorder_dp: |
---|
1866 | case ringorder_Dp: |
---|
1867 | case ringorder_ds: |
---|
1868 | case ringorder_Ds: |
---|
1869 | case ringorder_lp: |
---|
1870 | for(;j>=0; j--) (*iv)[j]=1; |
---|
1871 | break; |
---|
1872 | default: /* do nothing */; |
---|
1873 | } |
---|
1874 | } |
---|
1875 | else |
---|
1876 | { |
---|
1877 | iv=new intvec(1); |
---|
1878 | } |
---|
1879 | LLL->m[1].rtyp=INTVEC_CMD; |
---|
1880 | LLL->m[1].data=(void *)iv; |
---|
1881 | LL->m[i].data=(void *)LLL; |
---|
1882 | } |
---|
1883 | L->m[2].rtyp=LIST_CMD; |
---|
1884 | L->m[2].data=(void *)LL; |
---|
1885 | // ---------------------------------------- |
---|
1886 | // 3: qideal |
---|
1887 | L->m[3].rtyp=IDEAL_CMD; |
---|
1888 | if (r->qideal==NULL) |
---|
1889 | L->m[3].data=(void *)idInit(1,1); |
---|
1890 | else |
---|
1891 | L->m[3].data=(void *)idCopy(r->qideal); |
---|
1892 | // ---------------------------------------- |
---|
1893 | #ifdef HAVE_PLURAL // NC! in rDecompose |
---|
1894 | if (rIsPluralRing(r)) |
---|
1895 | { |
---|
1896 | L->m[4].rtyp=MATRIX_CMD; |
---|
1897 | L->m[4].data=(void *)mp_Copy(r->GetNC()->C, r, r); |
---|
1898 | L->m[5].rtyp=MATRIX_CMD; |
---|
1899 | L->m[5].data=(void *)mp_Copy(r->GetNC()->D, r, r); |
---|
1900 | } |
---|
1901 | #endif |
---|
1902 | return L; |
---|
1903 | } |
---|
1904 | |
---|
1905 | void rComposeC(lists L, ring R) |
---|
1906 | /* field is R or C */ |
---|
1907 | { |
---|
1908 | // ---------------------------------------- |
---|
1909 | // 0: char/ cf - ring |
---|
1910 | if ((L->m[0].rtyp!=INT_CMD) || (L->m[0].data!=(char *)0)) |
---|
1911 | { |
---|
1912 | Werror("invald coeff. field description, expecting 0"); |
---|
1913 | return; |
---|
1914 | } |
---|
1915 | R->cf->ch=-1; |
---|
1916 | // ---------------------------------------- |
---|
1917 | // 1: |
---|
1918 | if (L->m[1].rtyp!=LIST_CMD) |
---|
1919 | Werror("invald coeff. field description, expecting precision list"); |
---|
1920 | lists LL=(lists)L->m[1].data; |
---|
1921 | int r1=(int)(long)LL->m[0].data; |
---|
1922 | int r2=(int)(long)LL->m[1].data; |
---|
1923 | if ((r1<=SHORT_REAL_LENGTH) |
---|
1924 | && (r2=SHORT_REAL_LENGTH)) |
---|
1925 | { |
---|
1926 | R->float_len=SHORT_REAL_LENGTH/2; |
---|
1927 | R->float_len2=SHORT_REAL_LENGTH; |
---|
1928 | } |
---|
1929 | else |
---|
1930 | { |
---|
1931 | R->float_len=si_min(r1,32767); |
---|
1932 | R->float_len2=si_min(r2,32767); |
---|
1933 | } |
---|
1934 | // ---------------------------------------- |
---|
1935 | // 2: list (par) |
---|
1936 | if (L->nr==2) |
---|
1937 | { |
---|
1938 | R->cf->extRing->N=1; |
---|
1939 | if (L->m[2].rtyp!=STRING_CMD) |
---|
1940 | { |
---|
1941 | Werror("invald coeff. field description, expecting parameter name"); |
---|
1942 | return; |
---|
1943 | } |
---|
1944 | R->cf->extRing->names=(char**)omAlloc0(rPar(R)*sizeof(char_ptr)); |
---|
1945 | R->cf->extRing->names[0]=omStrDup((char *)L->m[2].data); |
---|
1946 | } |
---|
1947 | // ---------------------------------------- |
---|
1948 | } |
---|
1949 | |
---|
1950 | #ifdef HAVE_RINGS |
---|
1951 | void rComposeRing(lists L, ring R) |
---|
1952 | /* field is R or C */ |
---|
1953 | { |
---|
1954 | // ---------------------------------------- |
---|
1955 | // 0: string: integer |
---|
1956 | // no further entries --> Z |
---|
1957 | R->cf->modBase = (int_number) omAlloc(sizeof(mpz_t)); |
---|
1958 | if (L->nr == 0) |
---|
1959 | { |
---|
1960 | mpz_init_set_ui(R->cf->modBase,0); |
---|
1961 | R->cf->modExponent = 1; |
---|
1962 | } |
---|
1963 | // ---------------------------------------- |
---|
1964 | // 1: |
---|
1965 | else |
---|
1966 | { |
---|
1967 | if (L->m[1].rtyp!=LIST_CMD) Werror("invald data, expecting list of numbers"); |
---|
1968 | lists LL=(lists)L->m[1].data; |
---|
1969 | mpz_init(R->cf->modBase); |
---|
1970 | if ((LL->nr >= 0) && LL->m[0].rtyp == BIGINT_CMD) |
---|
1971 | { |
---|
1972 | number modBase = (number) LL->m[0].data; |
---|
1973 | nlGMP(modBase, (number) R->cf->modBase, R->cf); |
---|
1974 | LL->m[0].data = (void *)modBase; |
---|
1975 | } |
---|
1976 | else if ((LL->nr >= 0) && LL->m[0].rtyp == INT_CMD) |
---|
1977 | { |
---|
1978 | mpz_set_ui(R->cf->modBase,(unsigned long) LL->m[0].data); |
---|
1979 | } |
---|
1980 | else |
---|
1981 | { |
---|
1982 | mpz_set_ui(R->cf->modBase,0); |
---|
1983 | } |
---|
1984 | if (LL->nr >= 1) |
---|
1985 | { |
---|
1986 | R->cf->modExponent = (unsigned long) LL->m[1].data; |
---|
1987 | } |
---|
1988 | else |
---|
1989 | { |
---|
1990 | R->cf->modExponent = 1; |
---|
1991 | } |
---|
1992 | } |
---|
1993 | // ---------------------------------------- |
---|
1994 | if ((mpz_cmp_ui(R->cf->modBase, 1) == 0) && (mpz_cmp_ui(R->cf->modBase, 0) < 0)) |
---|
1995 | { |
---|
1996 | Werror("Wrong ground ring specification (module is 1)"); |
---|
1997 | return; |
---|
1998 | } |
---|
1999 | if (R->cf->modExponent < 1) |
---|
2000 | { |
---|
2001 | Werror("Wrong ground ring specification (exponent smaller than 1"); |
---|
2002 | return; |
---|
2003 | } |
---|
2004 | // module is 0 ---> integers |
---|
2005 | if (mpz_cmp_ui(R->cf->modBase, 0) == 0) |
---|
2006 | { |
---|
2007 | R->cf->ch = 0; |
---|
2008 | R->cf->ringtype = 4; |
---|
2009 | } |
---|
2010 | // we have an exponent |
---|
2011 | else if (R->cf->modExponent > 1) |
---|
2012 | { |
---|
2013 | R->cf->ch = R->cf->modExponent; |
---|
2014 | if ((mpz_cmp_ui(R->cf->modBase, 2) == 0) && (R->cf->modExponent <= 8*sizeof(NATNUMBER))) |
---|
2015 | { |
---|
2016 | /* this branch should be active for modExponent = 2..32 resp. 2..64, |
---|
2017 | depending on the size of a long on the respective platform */ |
---|
2018 | R->cf->ringtype = 1; // Use Z/2^ch |
---|
2019 | } |
---|
2020 | else |
---|
2021 | { |
---|
2022 | R->cf->ringtype = 3; |
---|
2023 | } |
---|
2024 | } |
---|
2025 | // just a module m > 1 |
---|
2026 | else |
---|
2027 | { |
---|
2028 | R->cf->ringtype = 2; |
---|
2029 | R->cf->ch = mpz_get_ui(R->cf->modBase); |
---|
2030 | } |
---|
2031 | } |
---|
2032 | #endif |
---|
2033 | |
---|
2034 | static void rRenameVars(ring R) |
---|
2035 | { |
---|
2036 | int i,j; |
---|
2037 | for(i=0;i<R->N-1;i++) |
---|
2038 | { |
---|
2039 | for(j=i+1;j<R->N;j++) |
---|
2040 | { |
---|
2041 | if (strcmp(R->names[i],R->names[j])==0) |
---|
2042 | { |
---|
2043 | Warn("name conflict var(%d) and var(%d): `%s`, rename to `@(%d)`",i+1,j+1,R->names[i],j+1); |
---|
2044 | omFree(R->names[j]); |
---|
2045 | R->names[j]=(char *)omAlloc(10); |
---|
2046 | sprintf(R->names[j],"@(%d)",j+1); |
---|
2047 | } |
---|
2048 | } |
---|
2049 | } |
---|
2050 | for(i=0;i<rPar(R); i++) |
---|
2051 | { |
---|
2052 | for(j=0;j<R->N;j++) |
---|
2053 | { |
---|
2054 | if (strcmp(rParameter(R)[i],R->names[j])==0) |
---|
2055 | { |
---|
2056 | Warn("name conflict par(%d) and var(%d): `%s`, rename to `@@(%d)`",i+1,j+1,R->names[j],i+1); |
---|
2057 | omFree(rParameter(R)[i]); |
---|
2058 | rParameter(R)[i]=(char *)omAlloc(10); |
---|
2059 | sprintf(rParameter(R)[i],"@@(%d)",i+1); |
---|
2060 | } |
---|
2061 | } |
---|
2062 | } |
---|
2063 | } |
---|
2064 | |
---|
2065 | ring rCompose(const lists L) |
---|
2066 | { |
---|
2067 | if ((L->nr!=3) |
---|
2068 | #ifdef HAVE_PLURAL |
---|
2069 | &&(L->nr!=5) |
---|
2070 | #endif |
---|
2071 | ) |
---|
2072 | return NULL; |
---|
2073 | // 0: char/ cf - ring |
---|
2074 | // 1: list (var) |
---|
2075 | // 2: list (ord) |
---|
2076 | // 3: qideal |
---|
2077 | // possibly: |
---|
2078 | // 4: C |
---|
2079 | // 5: D |
---|
2080 | ring R = (ring) omAlloc0Bin(sip_sring_bin); |
---|
2081 | |
---|
2082 | |
---|
2083 | assume( R->cf == NULL ); |
---|
2084 | int ch; |
---|
2085 | int is_gf_char = 0; |
---|
2086 | |
---|
2087 | // ------------------------------------------------------------------ |
---|
2088 | // 0: char: |
---|
2089 | if (L->m[0].Typ()==INT_CMD) |
---|
2090 | { |
---|
2091 | ch = (int)(long)L->m[0].Data(); |
---|
2092 | assume( ch >= 0 ); |
---|
2093 | |
---|
2094 | |
---|
2095 | if (ch != -1) // WTF? |
---|
2096 | { |
---|
2097 | int l=0; |
---|
2098 | |
---|
2099 | if ( |
---|
2100 | ((ch!=0) && (ch<2) && (is_gf_char=-1)) // TODO for Hans!: negative characteristic? |
---|
2101 | #ifndef NV_OPS |
---|
2102 | || (ch > 32003) |
---|
2103 | #endif |
---|
2104 | || ((l=IsPrime(ch))!=ch) |
---|
2105 | ) |
---|
2106 | { |
---|
2107 | Warn("%d is invalid characteristic of ground field. %d is used.", ch,l); |
---|
2108 | ch = l; |
---|
2109 | } |
---|
2110 | } |
---|
2111 | } |
---|
2112 | else if (L->m[0].Typ()==LIST_CMD) |
---|
2113 | { |
---|
2114 | lists LL=(lists)L->m[0].Data(); |
---|
2115 | #ifdef HAVE_RINGS |
---|
2116 | if (LL->m[0].Typ() == STRING_CMD) |
---|
2117 | { |
---|
2118 | rComposeRing(LL,R); /* Ring */ |
---|
2119 | } |
---|
2120 | else |
---|
2121 | #endif |
---|
2122 | if (LL->nr<3) |
---|
2123 | rComposeC(LL,R); /* R, long_R, long_C */ |
---|
2124 | else |
---|
2125 | { |
---|
2126 | if (LL->m[0].Typ()==INT_CMD) |
---|
2127 | { |
---|
2128 | ch = (int)(long)LL->m[0].Data(); |
---|
2129 | |
---|
2130 | // TODO: check that ch is a supported (by our GF impl.) power of a prime |
---|
2131 | while ((ch != fftable[is_gf_char]) && (fftable[is_gf_char])) is_gf_char++; |
---|
2132 | |
---|
2133 | if (fftable[is_gf_char]==0) is_gf_char=-1; |
---|
2134 | } |
---|
2135 | |
---|
2136 | if (is_gf_char==-1) |
---|
2137 | { |
---|
2138 | ring extRing = rCompose((lists)L->m[0].Data()); |
---|
2139 | |
---|
2140 | if (extRing==NULL) |
---|
2141 | { |
---|
2142 | WerrorS("could not create rational function coefficient field"); |
---|
2143 | goto rCompose_err; |
---|
2144 | } |
---|
2145 | if (extRing->cf->ch > 0) |
---|
2146 | ch = - extRing->cf->ch; // TODO: this is obsolete! |
---|
2147 | else |
---|
2148 | ch = 1; // WTF? |
---|
2149 | |
---|
2150 | // extRing->names = (char**)omAlloc0(rPar(R)*sizeof(char_ptr)); // obsolete? |
---|
2151 | |
---|
2152 | int i; |
---|
2153 | |
---|
2154 | // for( i = rPar(R) - 1; i >= 0; i--) extRing->names[i] = omStrDup(extRing->names[i]); |
---|
2155 | /* |
---|
2156 | // Obsolete? |
---|
2157 | if (extRing->qideal!=NULL) |
---|
2158 | { |
---|
2159 | if (IDELEMS(extRing->qideal) == 1) |
---|
2160 | { |
---|
2161 | extRing->qideal->m[0] = naInit(1,R); |
---|
2162 | lnumber n=(lnumber)R->minpoly; |
---|
2163 | n->z = extRing->qideal->m[0]; |
---|
2164 | // naMinimalPoly = n->z; |
---|
2165 | R->cf->extRing->qideal->m[0]=NULL; |
---|
2166 | idDelete(&(R->cf->extRing->qideal)); |
---|
2167 | |
---|
2168 | redefineFunctionPointers(); |
---|
2169 | } |
---|
2170 | else |
---|
2171 | { |
---|
2172 | WerrorS("not implemented yet."); |
---|
2173 | } |
---|
2174 | } |
---|
2175 | */ |
---|
2176 | } |
---|
2177 | else |
---|
2178 | { // gf-char |
---|
2179 | // ch = fftable[is_gf_char]; |
---|
2180 | extRing->N=1; |
---|
2181 | extRing->names=(char**)omAlloc0(1*sizeof(char_ptr)); |
---|
2182 | extRing->names[0]=omStrDup((char*)((lists)(LL->m[1].Data()))->m[0].Data()); |
---|
2183 | } |
---|
2184 | } |
---|
2185 | } |
---|
2186 | else |
---|
2187 | { |
---|
2188 | WerrorS("coefficient field must be described by `int` or `list`"); |
---|
2189 | goto rCompose_err; |
---|
2190 | } |
---|
2191 | rRenameVars(R); |
---|
2192 | rComplete(R); |
---|
2193 | |
---|
2194 | #ifdef HAVE_RINGS |
---|
2195 | // This was a BUG IN SINGULAR: There is no HABE_RINGS!!! |
---|
2196 | |
---|
2197 | // currently, coefficients which are ring elements require a global ordering: |
---|
2198 | if (rField_is_Ring(R) && (R->pOrdSgn==-1)) |
---|
2199 | { |
---|
2200 | WerrorS("global ordering required for these coefficients"); |
---|
2201 | goto rCompose_err; |
---|
2202 | } |
---|
2203 | #endif |
---|
2204 | |
---|
2205 | |
---|
2206 | |
---|
2207 | |
---|
2208 | |
---|
2209 | |
---|
2210 | |
---|
2211 | |
---|
2212 | |
---|
2213 | // ------------------------- VARS --------------------------- |
---|
2214 | if (L->m[1].Typ()==LIST_CMD) |
---|
2215 | { |
---|
2216 | lists v=(lists)L->m[1].Data(); |
---|
2217 | R->N = v->nr+1; |
---|
2218 | R->names = (char **)omAlloc0(R->N * sizeof(char_ptr)); |
---|
2219 | int i; |
---|
2220 | for(i=0;i<R->N;i++) |
---|
2221 | { |
---|
2222 | if (v->m[i].Typ()==STRING_CMD) |
---|
2223 | R->names[i]=omStrDup((char *)v->m[i].Data()); |
---|
2224 | else if (v->m[i].Typ()==POLY_CMD) |
---|
2225 | { |
---|
2226 | poly p=(poly)v->m[i].Data(); |
---|
2227 | int nr=pIsPurePower(p); |
---|
2228 | if (nr>0) |
---|
2229 | R->names[i]=omStrDup(currRing->names[nr-1]); |
---|
2230 | else |
---|
2231 | { |
---|
2232 | Werror("var name %d must be a string or a ring variable",i+1); |
---|
2233 | goto rCompose_err; |
---|
2234 | } |
---|
2235 | } |
---|
2236 | else |
---|
2237 | { |
---|
2238 | Werror("var name %d must be `string`",i+1); |
---|
2239 | goto rCompose_err; |
---|
2240 | } |
---|
2241 | } |
---|
2242 | } |
---|
2243 | else |
---|
2244 | { |
---|
2245 | WerrorS("variable must be given as `list`"); |
---|
2246 | goto rCompose_err; |
---|
2247 | } |
---|
2248 | // ------------------------ ORDER ------------------------------ |
---|
2249 | if (L->m[2].Typ()==LIST_CMD) |
---|
2250 | { |
---|
2251 | lists v=(lists)L->m[2].Data(); |
---|
2252 | int n= v->nr+2; |
---|
2253 | int j; |
---|
2254 | // initialize fields of R |
---|
2255 | R->order=(int *)omAlloc0(n*sizeof(int)); |
---|
2256 | R->block0=(int *)omAlloc0(n*sizeof(int)); |
---|
2257 | R->block1=(int *)omAlloc0(n*sizeof(int)); |
---|
2258 | R->wvhdl=(int**)omAlloc0(n*sizeof(int_ptr)); |
---|
2259 | // init order, so that rBlocks works correctly |
---|
2260 | for (j=0; j < n-1; j++) |
---|
2261 | R->order[j] = (int) ringorder_unspec; |
---|
2262 | // orderings |
---|
2263 | R->OrdSgn=1; |
---|
2264 | for(j=0;j<n-1;j++) |
---|
2265 | { |
---|
2266 | // todo: a(..), M |
---|
2267 | if (v->m[j].Typ()!=LIST_CMD) |
---|
2268 | { |
---|
2269 | WerrorS("ordering must be list of lists"); |
---|
2270 | goto rCompose_err; |
---|
2271 | } |
---|
2272 | lists vv=(lists)v->m[j].Data(); |
---|
2273 | if ((vv->nr!=1) |
---|
2274 | || (vv->m[0].Typ()!=STRING_CMD) |
---|
2275 | || ((vv->m[1].Typ()!=INTVEC_CMD) && (vv->m[1].Typ()!=INT_CMD))) |
---|
2276 | { |
---|
2277 | WerrorS("ordering name must be a (string,intvec)"); |
---|
2278 | goto rCompose_err; |
---|
2279 | } |
---|
2280 | R->order[j]=rOrderName(omStrDup((char*)vv->m[0].Data())); // assume STRING |
---|
2281 | |
---|
2282 | if (j==0) R->block0[0]=1; |
---|
2283 | else |
---|
2284 | { |
---|
2285 | int jj=j-1; |
---|
2286 | while((jj>=0) |
---|
2287 | && ((R->order[jj]== ringorder_a) |
---|
2288 | || (R->order[jj]== ringorder_aa) |
---|
2289 | || (R->order[jj]== ringorder_c) |
---|
2290 | || (R->order[jj]== ringorder_C) |
---|
2291 | || (R->order[jj]== ringorder_s) |
---|
2292 | || (R->order[jj]== ringorder_S) |
---|
2293 | )) |
---|
2294 | { |
---|
2295 | //Print("jj=%, skip %s\n",rSimpleOrdStr(R->order[jj])); |
---|
2296 | jj--; |
---|
2297 | } |
---|
2298 | if (jj<0) R->block0[j]=1; |
---|
2299 | else R->block0[j]=R->block1[jj]+1; |
---|
2300 | } |
---|
2301 | intvec *iv; |
---|
2302 | if (vv->m[1].Typ()==INT_CMD) |
---|
2303 | iv=new intvec((int)(long)vv->m[1].Data(),(int)(long)vv->m[1].Data()); |
---|
2304 | else |
---|
2305 | iv=ivCopy((intvec*)vv->m[1].Data()); //assume INTVEC |
---|
2306 | int iv_len=iv->length(); |
---|
2307 | R->block1[j]=si_max(R->block0[j],R->block0[j]+iv_len-1); |
---|
2308 | if (R->block1[j]>R->N) |
---|
2309 | { |
---|
2310 | R->block1[j]=R->N; |
---|
2311 | iv_len=R->block1[j]-R->block0[j]+1; |
---|
2312 | } |
---|
2313 | //Print("block %d from %d to %d\n",j,R->block0[j], R->block1[j]); |
---|
2314 | int i; |
---|
2315 | switch (R->order[j]) |
---|
2316 | { |
---|
2317 | case ringorder_ws: |
---|
2318 | case ringorder_Ws: |
---|
2319 | R->OrdSgn=-1; |
---|
2320 | case ringorder_aa: |
---|
2321 | case ringorder_a: |
---|
2322 | case ringorder_wp: |
---|
2323 | case ringorder_Wp: |
---|
2324 | R->wvhdl[j] =( int *)omAlloc(iv_len*sizeof(int)); |
---|
2325 | for (i=0; i<iv_len;i++) |
---|
2326 | { |
---|
2327 | R->wvhdl[j][i]=(*iv)[i]; |
---|
2328 | } |
---|
2329 | break; |
---|
2330 | case ringorder_M: |
---|
2331 | R->wvhdl[j] =( int *)omAlloc((iv->length())*sizeof(int)); |
---|
2332 | for (i=0; i<iv->length();i++) R->wvhdl[j][i]=(*iv)[i]; |
---|
2333 | R->block1[j]=si_max(R->block0[j],R->block0[j]+(int)sqrt((double)(iv->length()-1))); |
---|
2334 | if (R->block1[j]>R->N) |
---|
2335 | { |
---|
2336 | WerrorS("ordering matrix too big"); |
---|
2337 | goto rCompose_err; |
---|
2338 | } |
---|
2339 | break; |
---|
2340 | case ringorder_ls: |
---|
2341 | case ringorder_ds: |
---|
2342 | case ringorder_Ds: |
---|
2343 | case ringorder_rs: |
---|
2344 | R->OrdSgn=-1; |
---|
2345 | case ringorder_lp: |
---|
2346 | case ringorder_dp: |
---|
2347 | case ringorder_Dp: |
---|
2348 | case ringorder_rp: |
---|
2349 | break; |
---|
2350 | case ringorder_S: |
---|
2351 | break; |
---|
2352 | case ringorder_c: |
---|
2353 | case ringorder_C: |
---|
2354 | R->block1[j]=R->block0[j]=0; |
---|
2355 | break; |
---|
2356 | |
---|
2357 | case ringorder_s: |
---|
2358 | break; |
---|
2359 | |
---|
2360 | case ringorder_IS: |
---|
2361 | { |
---|
2362 | R->block1[j] = R->block0[j] = 0; |
---|
2363 | if( iv->length() > 0 ) |
---|
2364 | { |
---|
2365 | const int s = (*iv)[0]; |
---|
2366 | assume( -2 < s && s < 2 ); |
---|
2367 | R->block1[j] = R->block0[j] = s; |
---|
2368 | } |
---|
2369 | break; |
---|
2370 | } |
---|
2371 | case 0: |
---|
2372 | case ringorder_unspec: |
---|
2373 | break; |
---|
2374 | } |
---|
2375 | delete iv; |
---|
2376 | } |
---|
2377 | // sanity check |
---|
2378 | j=n-2; |
---|
2379 | if ((R->order[j]==ringorder_c) |
---|
2380 | || (R->order[j]==ringorder_C) |
---|
2381 | || (R->order[j]==ringorder_unspec)) j--; |
---|
2382 | if (R->block1[j] != R->N) |
---|
2383 | { |
---|
2384 | if (((R->order[j]==ringorder_dp) || |
---|
2385 | (R->order[j]==ringorder_ds) || |
---|
2386 | (R->order[j]==ringorder_Dp) || |
---|
2387 | (R->order[j]==ringorder_Ds) || |
---|
2388 | (R->order[j]==ringorder_rp) || |
---|
2389 | (R->order[j]==ringorder_rs) || |
---|
2390 | (R->order[j]==ringorder_lp) || |
---|
2391 | (R->order[j]==ringorder_ls)) |
---|
2392 | && |
---|
2393 | R->block0[j] <= R->N) |
---|
2394 | { |
---|
2395 | R->block1[j] = R->N; |
---|
2396 | } |
---|
2397 | else |
---|
2398 | { |
---|
2399 | Werror("ordering incomplete: size (%d) should be %d",R->block1[j],R->N); |
---|
2400 | goto rCompose_err; |
---|
2401 | } |
---|
2402 | } |
---|
2403 | } |
---|
2404 | else |
---|
2405 | { |
---|
2406 | WerrorS("ordering must be given as `list`"); |
---|
2407 | goto rCompose_err; |
---|
2408 | } |
---|
2409 | // ------------------------ Q-IDEAL ------------------------ |
---|
2410 | |
---|
2411 | if (L->m[3].Typ()==IDEAL_CMD) |
---|
2412 | { |
---|
2413 | ideal q=(ideal)L->m[3].Data(); |
---|
2414 | if (q->m[0]!=NULL) |
---|
2415 | { |
---|
2416 | if (R->cf->ch!=currRing->cf->ch) |
---|
2417 | { |
---|
2418 | #if 0 |
---|
2419 | WerrorS("coefficient fields must be equal if q-ideal !=0"); |
---|
2420 | goto rCompose_err; |
---|
2421 | #else |
---|
2422 | ring orig_ring=currRing; |
---|
2423 | rChangeCurrRing(R); |
---|
2424 | int *perm=NULL; |
---|
2425 | int *par_perm=NULL; |
---|
2426 | int par_perm_size=0; |
---|
2427 | nMapFunc nMap; |
---|
2428 | BOOLEAN bo; |
---|
2429 | |
---|
2430 | if ((nMap=nSetMap(orig_ring->cf))==NULL) |
---|
2431 | { |
---|
2432 | if (rEqual(orig_ring,currRing)) |
---|
2433 | { |
---|
2434 | nMap=n_SetMap(currRing->cf, currRing->cf); |
---|
2435 | } |
---|
2436 | else |
---|
2437 | // Allow imap/fetch to be make an exception only for: |
---|
2438 | if ( (rField_is_Q_a(orig_ring) && // Q(a..) -> Q(a..) || Q || Zp || Zp(a) |
---|
2439 | (rField_is_Q(currRing) || rField_is_Q_a(currRing) || |
---|
2440 | (rField_is_Zp(currRing) || rField_is_Zp_a(currRing)))) |
---|
2441 | || |
---|
2442 | (rField_is_Zp_a(orig_ring) && // Zp(a..) -> Zp(a..) || Zp |
---|
2443 | (rField_is_Zp(currRing, rInternalChar(orig_ring)) || |
---|
2444 | rField_is_Zp_a(currRing, rInternalChar(orig_ring)))) ) |
---|
2445 | { |
---|
2446 | par_perm_size=rPar(orig_ring); |
---|
2447 | BITSET save_test=test; |
---|
2448 | if ((orig_ring->minpoly != NULL) || (orig_ring->minideal != NULL)) |
---|
2449 | naSetChar(rInternalChar(orig_ring),orig_ring); |
---|
2450 | else naSetChar(rInternalChar(orig_ring),orig_ring); |
---|
2451 | nSetChar(currRing->cf); |
---|
2452 | test=save_test; |
---|
2453 | } |
---|
2454 | else |
---|
2455 | { |
---|
2456 | WerrorS("coefficient fields must be equal if q-ideal !=0"); |
---|
2457 | goto rCompose_err; |
---|
2458 | } |
---|
2459 | } |
---|
2460 | perm=(int *)omAlloc0((orig_ring->N+1)*sizeof(int)); |
---|
2461 | if (par_perm_size!=0) |
---|
2462 | par_perm=(int *)omAlloc0(par_perm_size*sizeof(int)); |
---|
2463 | int i; |
---|
2464 | #if 0 |
---|
2465 | // use imap: |
---|
2466 | maFindPerm(orig_ring->names,orig_ring->N,orig_ring->parameter,orig_ring->P, |
---|
2467 | currRing->names,currRing->N,currRing->parameter, currRing->P, |
---|
2468 | perm,par_perm, currRing->ch); |
---|
2469 | #else |
---|
2470 | // use fetch |
---|
2471 | if ((rPar(orig_ring)>0) && (rPar(currRing)==0)) |
---|
2472 | { |
---|
2473 | for(i=si_min(rPar(orig_ring),rVar(currRing))-1;i>=0;i--) par_perm[i]=i+1; |
---|
2474 | } |
---|
2475 | else if (par_perm_size!=0) |
---|
2476 | for(i=si_min(rPar(orig_ring),rPar(currRing))-1;i>=0;i--) par_perm[i]=-(i+1); |
---|
2477 | for(i=si_min(orig_ring->N,rVar(currRing));i>0;i--) perm[i]=i; |
---|
2478 | #endif |
---|
2479 | ideal dest_id=idInit(IDELEMS(q),1); |
---|
2480 | for(i=IDELEMS(q)-1; i>=0; i--) |
---|
2481 | { |
---|
2482 | dest_id->m[i]=p_PermPoly(q->m[i],perm,orig_ring, currRing,nMap, |
---|
2483 | par_perm,par_perm_size); |
---|
2484 | // PrintS("map:");pWrite(dest_id->m[i]);PrintLn(); |
---|
2485 | pTest(dest_id->m[i]); |
---|
2486 | } |
---|
2487 | R->qideal=dest_id; |
---|
2488 | if (perm!=NULL) |
---|
2489 | omFreeSize((ADDRESS)perm,(orig_ring->N+1)*sizeof(int)); |
---|
2490 | if (par_perm!=NULL) |
---|
2491 | omFreeSize((ADDRESS)par_perm,par_perm_size*sizeof(int)); |
---|
2492 | rChangeCurrRing(orig_ring); |
---|
2493 | #endif |
---|
2494 | } |
---|
2495 | else |
---|
2496 | R->qideal=idrCopyR(q,currRing,R); |
---|
2497 | } |
---|
2498 | } |
---|
2499 | else |
---|
2500 | { |
---|
2501 | WerrorS("q-ideal must be given as `ideal`"); |
---|
2502 | goto rCompose_err; |
---|
2503 | } |
---|
2504 | |
---|
2505 | |
---|
2506 | // --------------------------------------------------------------- |
---|
2507 | #ifdef HAVE_PLURAL |
---|
2508 | if (L->nr==5) |
---|
2509 | { |
---|
2510 | if (nc_CallPlural((matrix)L->m[4].Data(), |
---|
2511 | (matrix)L->m[5].Data(), |
---|
2512 | NULL,NULL, |
---|
2513 | R, |
---|
2514 | true, // !!! |
---|
2515 | true, false, |
---|
2516 | currRing, FALSE)) goto rCompose_err; |
---|
2517 | // takes care about non-comm. quotient! i.e. calls "nc_SetupQuotient" due to last true |
---|
2518 | } |
---|
2519 | #endif |
---|
2520 | return R; |
---|
2521 | |
---|
2522 | rCompose_err: |
---|
2523 | if (R->N>0) |
---|
2524 | { |
---|
2525 | int i; |
---|
2526 | if (R->names!=NULL) |
---|
2527 | { |
---|
2528 | i=R->N-1; |
---|
2529 | while (i>=0) { if (R->names[i]!=NULL) omFree(R->names[i]); i--; } |
---|
2530 | omFree(R->names); |
---|
2531 | } |
---|
2532 | } |
---|
2533 | if (R->order!=NULL) omFree(R->order); |
---|
2534 | if (R->block0!=NULL) omFree(R->block0); |
---|
2535 | if (R->block1!=NULL) omFree(R->block1); |
---|
2536 | if (R->wvhdl!=NULL) omFree(R->wvhdl); |
---|
2537 | omFree(R); |
---|
2538 | return NULL; |
---|
2539 | } |
---|
2540 | |
---|
2541 | // from matpol.cc |
---|
2542 | |
---|
2543 | /*2 |
---|
2544 | * compute the jacobi matrix of an ideal |
---|
2545 | */ |
---|
2546 | BOOLEAN mpJacobi(leftv res,leftv a) |
---|
2547 | { |
---|
2548 | int i,j; |
---|
2549 | matrix result; |
---|
2550 | ideal id=(ideal)a->Data(); |
---|
2551 | |
---|
2552 | result =mpNew(IDELEMS(id),rVar(currRing)); |
---|
2553 | for (i=1; i<=IDELEMS(id); i++) |
---|
2554 | { |
---|
2555 | for (j=1; j<=rVar(currRing); j++) |
---|
2556 | { |
---|
2557 | MATELEM(result,i,j) = pDiff(id->m[i-1],j); |
---|
2558 | } |
---|
2559 | } |
---|
2560 | res->data=(char *)result; |
---|
2561 | return FALSE; |
---|
2562 | } |
---|
2563 | |
---|
2564 | /*2 |
---|
2565 | * returns the Koszul-matrix of degree d of a vectorspace with dimension n |
---|
2566 | * uses the first n entrees of id, if id <> NULL |
---|
2567 | */ |
---|
2568 | BOOLEAN mpKoszul(leftv res,leftv c/*ip*/, leftv b/*in*/, leftv id) |
---|
2569 | { |
---|
2570 | int n=(int)(long)b->Data(); |
---|
2571 | int d=(int)(long)c->Data(); |
---|
2572 | int k,l,sign,row,col; |
---|
2573 | matrix result; |
---|
2574 | ideal temp; |
---|
2575 | BOOLEAN bo; |
---|
2576 | poly p; |
---|
2577 | |
---|
2578 | if ((d>n) || (d<1) || (n<1)) |
---|
2579 | { |
---|
2580 | res->data=(char *)mpNew(1,1); |
---|
2581 | return FALSE; |
---|
2582 | } |
---|
2583 | int *choise = (int*)omAlloc(d*sizeof(int)); |
---|
2584 | if (id==NULL) |
---|
2585 | temp=idMaxIdeal(1); |
---|
2586 | else |
---|
2587 | temp=(ideal)id->Data(); |
---|
2588 | |
---|
2589 | k = binom(n,d); |
---|
2590 | l = k*d; |
---|
2591 | l /= n-d+1; |
---|
2592 | result =mpNew(l,k); |
---|
2593 | col = 1; |
---|
2594 | idInitChoise(d,1,n,&bo,choise); |
---|
2595 | while (!bo) |
---|
2596 | { |
---|
2597 | sign = 1; |
---|
2598 | for (l=1;l<=d;l++) |
---|
2599 | { |
---|
2600 | if (choise[l-1]<=IDELEMS(temp)) |
---|
2601 | { |
---|
2602 | p = pCopy(temp->m[choise[l-1]-1]); |
---|
2603 | if (sign == -1) p = pNeg(p); |
---|
2604 | sign *= -1; |
---|
2605 | row = idGetNumberOfChoise(l-1,d,1,n,choise); |
---|
2606 | MATELEM(result,row,col) = p; |
---|
2607 | } |
---|
2608 | } |
---|
2609 | col++; |
---|
2610 | idGetNextChoise(d,n,&bo,choise); |
---|
2611 | } |
---|
2612 | if (id==NULL) idDelete(&temp); |
---|
2613 | |
---|
2614 | res->data=(char *)result; |
---|
2615 | return FALSE; |
---|
2616 | } |
---|
2617 | |
---|
2618 | // from syz1.cc |
---|
2619 | /*2 |
---|
2620 | * read out the Betti numbers from resolution |
---|
2621 | * (interpreter interface) |
---|
2622 | */ |
---|
2623 | BOOLEAN syBetti2(leftv res, leftv u, leftv w) |
---|
2624 | { |
---|
2625 | syStrategy syzstr=(syStrategy)u->Data(); |
---|
2626 | |
---|
2627 | BOOLEAN minim=(int)(long)w->Data(); |
---|
2628 | int row_shift=0; |
---|
2629 | int add_row_shift=0; |
---|
2630 | intvec *weights=NULL; |
---|
2631 | intvec *ww=(intvec *)atGet(u,"isHomog",INTVEC_CMD); |
---|
2632 | if (ww!=NULL) |
---|
2633 | { |
---|
2634 | weights=ivCopy(ww); |
---|
2635 | add_row_shift = ww->min_in(); |
---|
2636 | (*weights) -= add_row_shift; |
---|
2637 | } |
---|
2638 | |
---|
2639 | res->data=(void *)syBettiOfComputation(syzstr,minim,&row_shift,weights); |
---|
2640 | //row_shift += add_row_shift; |
---|
2641 | //Print("row_shift=%d, add_row_shift=%d\n",row_shift,add_row_shift); |
---|
2642 | atSet(res,omStrDup("rowShift"),(void*)add_row_shift,INT_CMD); |
---|
2643 | |
---|
2644 | return FALSE; |
---|
2645 | } |
---|
2646 | BOOLEAN syBetti1(leftv res, leftv u) |
---|
2647 | { |
---|
2648 | sleftv tmp; |
---|
2649 | memset(&tmp,0,sizeof(tmp)); |
---|
2650 | tmp.rtyp=INT_CMD; |
---|
2651 | tmp.data=(void *)1; |
---|
2652 | return syBetti2(res,u,&tmp); |
---|
2653 | } |
---|
2654 | |
---|
2655 | /*3 |
---|
2656 | * converts a resolution into a list of modules |
---|
2657 | */ |
---|
2658 | lists syConvRes(syStrategy syzstr,BOOLEAN toDel,int add_row_shift) |
---|
2659 | { |
---|
2660 | resolvente fullres = syzstr->fullres; |
---|
2661 | resolvente minres = syzstr->minres; |
---|
2662 | |
---|
2663 | const int length = syzstr->length; |
---|
2664 | |
---|
2665 | if ((fullres==NULL) && (minres==NULL)) |
---|
2666 | { |
---|
2667 | if (syzstr->hilb_coeffs==NULL) |
---|
2668 | { // La Scala |
---|
2669 | fullres = syReorder(syzstr->res, length, syzstr); |
---|
2670 | } |
---|
2671 | else |
---|
2672 | { // HRES |
---|
2673 | minres = syReorder(syzstr->orderedRes, length, syzstr); |
---|
2674 | syKillEmptyEntres(minres, length); |
---|
2675 | } |
---|
2676 | } |
---|
2677 | |
---|
2678 | resolvente tr; |
---|
2679 | int typ0=IDEAL_CMD; |
---|
2680 | |
---|
2681 | if (minres!=NULL) |
---|
2682 | tr = minres; |
---|
2683 | else |
---|
2684 | tr = fullres; |
---|
2685 | |
---|
2686 | resolvente trueres=NULL; intvec ** w=NULL; |
---|
2687 | |
---|
2688 | if (length>0) |
---|
2689 | { |
---|
2690 | trueres = (resolvente)omAlloc0((length)*sizeof(ideal)); |
---|
2691 | for (int i=(length)-1;i>=0;i--) |
---|
2692 | { |
---|
2693 | if (tr[i]!=NULL) |
---|
2694 | { |
---|
2695 | trueres[i] = idCopy(tr[i]); |
---|
2696 | } |
---|
2697 | } |
---|
2698 | if (/* idRankFreeModule(trueres[0]) */ trueres[0] > 0) |
---|
2699 | typ0 = MODUL_CMD; |
---|
2700 | if (syzstr->weights!=NULL) |
---|
2701 | { |
---|
2702 | w = (intvec**)omAlloc0(length*sizeof(intvec*)); |
---|
2703 | for (int i=length-1;i>=0;i--) |
---|
2704 | { |
---|
2705 | if (syzstr->weights[i]!=NULL) w[i] = ivCopy(syzstr->weights[i]); |
---|
2706 | } |
---|
2707 | } |
---|
2708 | } |
---|
2709 | |
---|
2710 | lists li = liMakeResolv(trueres, length, syzstr->list_length,typ0, |
---|
2711 | w, add_row_shift); |
---|
2712 | |
---|
2713 | if (w != NULL) omFreeSize(w, length*sizeof(intvec*)); |
---|
2714 | |
---|
2715 | if (toDel) |
---|
2716 | syKillComputation(syzstr); |
---|
2717 | else |
---|
2718 | { |
---|
2719 | if( fullres != NULL && syzstr->fullres == NULL ) |
---|
2720 | syzstr->fullres = fullres; |
---|
2721 | |
---|
2722 | if( minres != NULL && syzstr->minres == NULL ) |
---|
2723 | syzstr->minres = minres; |
---|
2724 | } |
---|
2725 | |
---|
2726 | return li; |
---|
2727 | |
---|
2728 | |
---|
2729 | } |
---|
2730 | |
---|
2731 | /*3 |
---|
2732 | * converts a list of modules into a resolution |
---|
2733 | */ |
---|
2734 | syStrategy syConvList(lists li,BOOLEAN toDel) |
---|
2735 | { |
---|
2736 | int typ0; |
---|
2737 | syStrategy result=(syStrategy)omAlloc0(sizeof(ssyStrategy)); |
---|
2738 | |
---|
2739 | resolvente fr = liFindRes(li,&(result->length),&typ0,&(result->weights)); |
---|
2740 | if (fr != NULL) |
---|
2741 | { |
---|
2742 | |
---|
2743 | result->fullres = (resolvente)omAlloc0((result->length+1)*sizeof(ideal)); |
---|
2744 | for (int i=result->length-1;i>=0;i--) |
---|
2745 | { |
---|
2746 | if (fr[i]!=NULL) |
---|
2747 | result->fullres[i] = idCopy(fr[i]); |
---|
2748 | } |
---|
2749 | result->list_length=result->length; |
---|
2750 | omFreeSize((ADDRESS)fr,(result->length)*sizeof(ideal)); |
---|
2751 | } |
---|
2752 | else |
---|
2753 | { |
---|
2754 | omFreeSize(result, sizeof(ssyStrategy)); |
---|
2755 | result = NULL; |
---|
2756 | } |
---|
2757 | if (toDel) li->Clean(); |
---|
2758 | return result; |
---|
2759 | } |
---|
2760 | |
---|
2761 | /*3 |
---|
2762 | * converts a list of modules into a minimal resolution |
---|
2763 | */ |
---|
2764 | syStrategy syForceMin(lists li) |
---|
2765 | { |
---|
2766 | int typ0; |
---|
2767 | syStrategy result=(syStrategy)omAlloc0(sizeof(ssyStrategy)); |
---|
2768 | |
---|
2769 | resolvente fr = liFindRes(li,&(result->length),&typ0); |
---|
2770 | result->minres = (resolvente)omAlloc0((result->length+1)*sizeof(ideal)); |
---|
2771 | for (int i=result->length-1;i>=0;i--) |
---|
2772 | { |
---|
2773 | if (fr[i]!=NULL) |
---|
2774 | result->minres[i] = idCopy(fr[i]); |
---|
2775 | } |
---|
2776 | omFreeSize((ADDRESS)fr,(result->length)*sizeof(ideal)); |
---|
2777 | return result; |
---|
2778 | } |
---|
2779 | // from weight.cc |
---|
2780 | BOOLEAN kWeight(leftv res,leftv id) |
---|
2781 | { |
---|
2782 | ideal F=(ideal)id->Data(); |
---|
2783 | intvec * iv = new intvec(rVar(currRing)); |
---|
2784 | polyset s; |
---|
2785 | int sl, n, i; |
---|
2786 | int *x; |
---|
2787 | |
---|
2788 | res->data=(char *)iv; |
---|
2789 | s = F->m; |
---|
2790 | sl = IDELEMS(F) - 1; |
---|
2791 | n = rVar(currRing); |
---|
2792 | double wNsqr = (double)2.0 / (double)n; |
---|
2793 | wFunctional = wFunctionalBuch; |
---|
2794 | x = (int * )omAlloc(2 * (n + 1) * sizeof(int)); |
---|
2795 | wCall(s, sl, x, wNsqr, currRing); |
---|
2796 | for (i = n; i!=0; i--) |
---|
2797 | (*iv)[i-1] = x[i + n + 1]; |
---|
2798 | omFreeSize((ADDRESS)x, 2 * (n + 1) * sizeof(int)); |
---|
2799 | return FALSE; |
---|
2800 | } |
---|
2801 | |
---|
2802 | BOOLEAN kQHWeight(leftv res,leftv v) |
---|
2803 | { |
---|
2804 | res->data=(char *)idQHomWeight((ideal)v->Data()); |
---|
2805 | if (res->data==NULL) |
---|
2806 | res->data=(char *)new intvec(rVar(currRing)); |
---|
2807 | return FALSE; |
---|
2808 | } |
---|
2809 | /*==============================================================*/ |
---|
2810 | // from clapsing.cc |
---|
2811 | #if 0 |
---|
2812 | BOOLEAN jjIS_SQR_FREE(leftv res, leftv u) |
---|
2813 | { |
---|
2814 | BOOLEAN b=singclap_factorize((poly)(u->CopyD()), &v, 0); |
---|
2815 | res->data=(void *)b; |
---|
2816 | } |
---|
2817 | #endif |
---|
2818 | |
---|
2819 | #ifdef HAVE_FACTORY |
---|
2820 | BOOLEAN jjRESULTANT(leftv res, leftv u, leftv v, leftv w) |
---|
2821 | { |
---|
2822 | res->data=singclap_resultant((poly)u->CopyD(),(poly)v->CopyD(), |
---|
2823 | (poly)w->CopyD(), currRing); |
---|
2824 | return errorreported; |
---|
2825 | } |
---|
2826 | BOOLEAN jjCHARSERIES(leftv res, leftv u) |
---|
2827 | { |
---|
2828 | res->data=singclap_irrCharSeries((ideal)u->Data(), currRing); |
---|
2829 | return (res->data==NULL); |
---|
2830 | } |
---|
2831 | #endif |
---|
2832 | |
---|
2833 | // from semic.cc |
---|
2834 | #ifdef HAVE_SPECTRUM |
---|
2835 | |
---|
2836 | // ---------------------------------------------------------------------------- |
---|
2837 | // Initialize a spectrum deep from a singular lists |
---|
2838 | // ---------------------------------------------------------------------------- |
---|
2839 | |
---|
2840 | void copy_deep( spectrum& spec, lists l ) |
---|
2841 | { |
---|
2842 | spec.mu = (int)(long)(l->m[0].Data( )); |
---|
2843 | spec.pg = (int)(long)(l->m[1].Data( )); |
---|
2844 | spec.n = (int)(long)(l->m[2].Data( )); |
---|
2845 | |
---|
2846 | spec.copy_new( spec.n ); |
---|
2847 | |
---|
2848 | intvec *num = (intvec*)l->m[3].Data( ); |
---|
2849 | intvec *den = (intvec*)l->m[4].Data( ); |
---|
2850 | intvec *mul = (intvec*)l->m[5].Data( ); |
---|
2851 | |
---|
2852 | for( int i=0; i<spec.n; i++ ) |
---|
2853 | { |
---|
2854 | spec.s[i] = (Rational)((*num)[i])/(Rational)((*den)[i]); |
---|
2855 | spec.w[i] = (*mul)[i]; |
---|
2856 | } |
---|
2857 | } |
---|
2858 | |
---|
2859 | // ---------------------------------------------------------------------------- |
---|
2860 | // singular lists constructor for spectrum |
---|
2861 | // ---------------------------------------------------------------------------- |
---|
2862 | |
---|
2863 | spectrum /*former spectrum::spectrum ( lists l )*/ |
---|
2864 | spectrumFromList( lists l ) |
---|
2865 | { |
---|
2866 | spectrum result; |
---|
2867 | copy_deep( result, l ); |
---|
2868 | return result; |
---|
2869 | } |
---|
2870 | |
---|
2871 | // ---------------------------------------------------------------------------- |
---|
2872 | // generate a Singular lists from a spectrum |
---|
2873 | // ---------------------------------------------------------------------------- |
---|
2874 | |
---|
2875 | /* former spectrum::thelist ( void )*/ |
---|
2876 | lists getList( spectrum& spec ) |
---|
2877 | { |
---|
2878 | lists L = (lists)omAllocBin( slists_bin); |
---|
2879 | |
---|
2880 | L->Init( 6 ); |
---|
2881 | |
---|
2882 | intvec *num = new intvec( spec.n ); |
---|
2883 | intvec *den = new intvec( spec.n ); |
---|
2884 | intvec *mult = new intvec( spec.n ); |
---|
2885 | |
---|
2886 | for( int i=0; i<spec.n; i++ ) |
---|
2887 | { |
---|
2888 | (*num) [i] = spec.s[i].get_num_si( ); |
---|
2889 | (*den) [i] = spec.s[i].get_den_si( ); |
---|
2890 | (*mult)[i] = spec.w[i]; |
---|
2891 | } |
---|
2892 | |
---|
2893 | L->m[0].rtyp = INT_CMD; // milnor number |
---|
2894 | L->m[1].rtyp = INT_CMD; // geometrical genus |
---|
2895 | L->m[2].rtyp = INT_CMD; // # of spectrum numbers |
---|
2896 | L->m[3].rtyp = INTVEC_CMD; // numerators |
---|
2897 | L->m[4].rtyp = INTVEC_CMD; // denomiantors |
---|
2898 | L->m[5].rtyp = INTVEC_CMD; // multiplicities |
---|
2899 | |
---|
2900 | L->m[0].data = (void*)spec.mu; |
---|
2901 | L->m[1].data = (void*)spec.pg; |
---|
2902 | L->m[2].data = (void*)spec.n; |
---|
2903 | L->m[3].data = (void*)num; |
---|
2904 | L->m[4].data = (void*)den; |
---|
2905 | L->m[5].data = (void*)mult; |
---|
2906 | |
---|
2907 | return L; |
---|
2908 | } |
---|
2909 | // from spectrum.cc |
---|
2910 | // ---------------------------------------------------------------------------- |
---|
2911 | // print out an error message for a spectrum list |
---|
2912 | // ---------------------------------------------------------------------------- |
---|
2913 | |
---|
2914 | typedef enum |
---|
2915 | { |
---|
2916 | semicOK, |
---|
2917 | semicMulNegative, |
---|
2918 | |
---|
2919 | semicListTooShort, |
---|
2920 | semicListTooLong, |
---|
2921 | |
---|
2922 | semicListFirstElementWrongType, |
---|
2923 | semicListSecondElementWrongType, |
---|
2924 | semicListThirdElementWrongType, |
---|
2925 | semicListFourthElementWrongType, |
---|
2926 | semicListFifthElementWrongType, |
---|
2927 | semicListSixthElementWrongType, |
---|
2928 | |
---|
2929 | semicListNNegative, |
---|
2930 | semicListWrongNumberOfNumerators, |
---|
2931 | semicListWrongNumberOfDenominators, |
---|
2932 | semicListWrongNumberOfMultiplicities, |
---|
2933 | |
---|
2934 | semicListMuNegative, |
---|
2935 | semicListPgNegative, |
---|
2936 | semicListNumNegative, |
---|
2937 | semicListDenNegative, |
---|
2938 | semicListMulNegative, |
---|
2939 | |
---|
2940 | semicListNotSymmetric, |
---|
2941 | semicListNotMonotonous, |
---|
2942 | |
---|
2943 | semicListMilnorWrong, |
---|
2944 | semicListPGWrong |
---|
2945 | |
---|
2946 | } semicState; |
---|
2947 | |
---|
2948 | void list_error( semicState state ) |
---|
2949 | { |
---|
2950 | switch( state ) |
---|
2951 | { |
---|
2952 | case semicListTooShort: |
---|
2953 | WerrorS( "the list is too short" ); |
---|
2954 | break; |
---|
2955 | case semicListTooLong: |
---|
2956 | WerrorS( "the list is too long" ); |
---|
2957 | break; |
---|
2958 | |
---|
2959 | case semicListFirstElementWrongType: |
---|
2960 | WerrorS( "first element of the list should be int" ); |
---|
2961 | break; |
---|
2962 | case semicListSecondElementWrongType: |
---|
2963 | WerrorS( "second element of the list should be int" ); |
---|
2964 | break; |
---|
2965 | case semicListThirdElementWrongType: |
---|
2966 | WerrorS( "third element of the list should be int" ); |
---|
2967 | break; |
---|
2968 | case semicListFourthElementWrongType: |
---|
2969 | WerrorS( "fourth element of the list should be intvec" ); |
---|
2970 | break; |
---|
2971 | case semicListFifthElementWrongType: |
---|
2972 | WerrorS( "fifth element of the list should be intvec" ); |
---|
2973 | break; |
---|
2974 | case semicListSixthElementWrongType: |
---|
2975 | WerrorS( "sixth element of the list should be intvec" ); |
---|
2976 | break; |
---|
2977 | |
---|
2978 | case semicListNNegative: |
---|
2979 | WerrorS( "first element of the list should be positive" ); |
---|
2980 | break; |
---|
2981 | case semicListWrongNumberOfNumerators: |
---|
2982 | WerrorS( "wrong number of numerators" ); |
---|
2983 | break; |
---|
2984 | case semicListWrongNumberOfDenominators: |
---|
2985 | WerrorS( "wrong number of denominators" ); |
---|
2986 | break; |
---|
2987 | case semicListWrongNumberOfMultiplicities: |
---|
2988 | WerrorS( "wrong number of multiplicities" ); |
---|
2989 | break; |
---|
2990 | |
---|
2991 | case semicListMuNegative: |
---|
2992 | WerrorS( "the Milnor number should be positive" ); |
---|
2993 | break; |
---|
2994 | case semicListPgNegative: |
---|
2995 | WerrorS( "the geometrical genus should be nonnegative" ); |
---|
2996 | break; |
---|
2997 | case semicListNumNegative: |
---|
2998 | WerrorS( "all numerators should be positive" ); |
---|
2999 | break; |
---|
3000 | case semicListDenNegative: |
---|
3001 | WerrorS( "all denominators should be positive" ); |
---|
3002 | break; |
---|
3003 | case semicListMulNegative: |
---|
3004 | WerrorS( "all multiplicities should be positive" ); |
---|
3005 | break; |
---|
3006 | |
---|
3007 | case semicListNotSymmetric: |
---|
3008 | WerrorS( "it is not symmetric" ); |
---|
3009 | break; |
---|
3010 | case semicListNotMonotonous: |
---|
3011 | WerrorS( "it is not monotonous" ); |
---|
3012 | break; |
---|
3013 | |
---|
3014 | case semicListMilnorWrong: |
---|
3015 | WerrorS( "the Milnor number is wrong" ); |
---|
3016 | break; |
---|
3017 | case semicListPGWrong: |
---|
3018 | WerrorS( "the geometrical genus is wrong" ); |
---|
3019 | break; |
---|
3020 | |
---|
3021 | default: |
---|
3022 | WerrorS( "unspecific error" ); |
---|
3023 | break; |
---|
3024 | } |
---|
3025 | } |
---|
3026 | // ---------------------------------------------------------------------------- |
---|
3027 | // this is the main spectrum computation function |
---|
3028 | // ---------------------------------------------------------------------------- |
---|
3029 | |
---|
3030 | enum spectrumState |
---|
3031 | { |
---|
3032 | spectrumOK, |
---|
3033 | spectrumZero, |
---|
3034 | spectrumBadPoly, |
---|
3035 | spectrumNoSingularity, |
---|
3036 | spectrumNotIsolated, |
---|
3037 | spectrumDegenerate, |
---|
3038 | spectrumWrongRing, |
---|
3039 | spectrumNoHC, |
---|
3040 | spectrumUnspecErr |
---|
3041 | }; |
---|
3042 | |
---|
3043 | spectrumState spectrumCompute( poly h,lists *L,int fast ) |
---|
3044 | { |
---|
3045 | int i,j; |
---|
3046 | |
---|
3047 | #ifdef SPECTRUM_DEBUG |
---|
3048 | #ifdef SPECTRUM_PRINT |
---|
3049 | #ifdef SPECTRUM_IOSTREAM |
---|
3050 | cout << "spectrumCompute\n"; |
---|
3051 | if( fast==0 ) cout << " no optimization" << endl; |
---|
3052 | if( fast==1 ) cout << " weight optimization" << endl; |
---|
3053 | if( fast==2 ) cout << " symmetry optimization" << endl; |
---|
3054 | #else |
---|
3055 | fprintf( stdout,"spectrumCompute\n" ); |
---|
3056 | if( fast==0 ) fprintf( stdout," no optimization\n" ); |
---|
3057 | if( fast==1 ) fprintf( stdout," weight optimization\n" ); |
---|
3058 | if( fast==2 ) fprintf( stdout," symmetry optimization\n" ); |
---|
3059 | #endif |
---|
3060 | #endif |
---|
3061 | #endif |
---|
3062 | |
---|
3063 | // ---------------------- |
---|
3064 | // check if h is zero |
---|
3065 | // ---------------------- |
---|
3066 | |
---|
3067 | if( h==(poly)NULL ) |
---|
3068 | { |
---|
3069 | return spectrumZero; |
---|
3070 | } |
---|
3071 | |
---|
3072 | // ---------------------------------- |
---|
3073 | // check if h has a constant term |
---|
3074 | // ---------------------------------- |
---|
3075 | |
---|
3076 | if( hasConstTerm( h, currRing ) ) |
---|
3077 | { |
---|
3078 | return spectrumBadPoly; |
---|
3079 | } |
---|
3080 | |
---|
3081 | // -------------------------------- |
---|
3082 | // check if h has a linear term |
---|
3083 | // -------------------------------- |
---|
3084 | |
---|
3085 | if( hasLinearTerm( h, currRing ) ) |
---|
3086 | { |
---|
3087 | *L = (lists)omAllocBin( slists_bin); |
---|
3088 | (*L)->Init( 1 ); |
---|
3089 | (*L)->m[0].rtyp = INT_CMD; // milnor number |
---|
3090 | /* (*L)->m[0].data = (void*)0;a -- done by Init */ |
---|
3091 | |
---|
3092 | return spectrumNoSingularity; |
---|
3093 | } |
---|
3094 | |
---|
3095 | // ---------------------------------- |
---|
3096 | // compute the jacobi ideal of (h) |
---|
3097 | // ---------------------------------- |
---|
3098 | |
---|
3099 | ideal J = NULL; |
---|
3100 | J = idInit( rVar(currRing),1 ); |
---|
3101 | |
---|
3102 | #ifdef SPECTRUM_DEBUG |
---|
3103 | #ifdef SPECTRUM_PRINT |
---|
3104 | #ifdef SPECTRUM_IOSTREAM |
---|
3105 | cout << "\n computing the Jacobi ideal...\n"; |
---|
3106 | #else |
---|
3107 | fprintf( stdout,"\n computing the Jacobi ideal...\n" ); |
---|
3108 | #endif |
---|
3109 | #endif |
---|
3110 | #endif |
---|
3111 | |
---|
3112 | for( i=0; i<rVar(currRing); i++ ) |
---|
3113 | { |
---|
3114 | J->m[i] = pDiff( h,i+1); //j ); |
---|
3115 | |
---|
3116 | #ifdef SPECTRUM_DEBUG |
---|
3117 | #ifdef SPECTRUM_PRINT |
---|
3118 | #ifdef SPECTRUM_IOSTREAM |
---|
3119 | cout << " "; |
---|
3120 | #else |
---|
3121 | fprintf( stdout," " ); |
---|
3122 | #endif |
---|
3123 | pWrite( J->m[i] ); |
---|
3124 | #endif |
---|
3125 | #endif |
---|
3126 | } |
---|
3127 | |
---|
3128 | // -------------------------------------------- |
---|
3129 | // compute a standard basis stdJ of jac(h) |
---|
3130 | // -------------------------------------------- |
---|
3131 | |
---|
3132 | #ifdef SPECTRUM_DEBUG |
---|
3133 | #ifdef SPECTRUM_PRINT |
---|
3134 | #ifdef SPECTRUM_IOSTREAM |
---|
3135 | cout << endl; |
---|
3136 | cout << " computing a standard basis..." << endl; |
---|
3137 | #else |
---|
3138 | fprintf( stdout,"\n" ); |
---|
3139 | fprintf( stdout," computing a standard basis...\n" ); |
---|
3140 | #endif |
---|
3141 | #endif |
---|
3142 | #endif |
---|
3143 | |
---|
3144 | ideal stdJ = kStd(J,currQuotient,isNotHomog,NULL); |
---|
3145 | idSkipZeroes( stdJ ); |
---|
3146 | |
---|
3147 | #ifdef SPECTRUM_DEBUG |
---|
3148 | #ifdef SPECTRUM_PRINT |
---|
3149 | for( i=0; i<IDELEMS(stdJ); i++ ) |
---|
3150 | { |
---|
3151 | #ifdef SPECTRUM_IOSTREAM |
---|
3152 | cout << " "; |
---|
3153 | #else |
---|
3154 | fprintf( stdout," " ); |
---|
3155 | #endif |
---|
3156 | |
---|
3157 | pWrite( stdJ->m[i] ); |
---|
3158 | } |
---|
3159 | #endif |
---|
3160 | #endif |
---|
3161 | |
---|
3162 | idDelete( &J ); |
---|
3163 | |
---|
3164 | // ------------------------------------------ |
---|
3165 | // check if the h has a singularity |
---|
3166 | // ------------------------------------------ |
---|
3167 | |
---|
3168 | if( hasOne( stdJ, currRing ) ) |
---|
3169 | { |
---|
3170 | // ------------------------------- |
---|
3171 | // h is smooth in the origin |
---|
3172 | // return only the Milnor number |
---|
3173 | // ------------------------------- |
---|
3174 | |
---|
3175 | *L = (lists)omAllocBin( slists_bin); |
---|
3176 | (*L)->Init( 1 ); |
---|
3177 | (*L)->m[0].rtyp = INT_CMD; // milnor number |
---|
3178 | /* (*L)->m[0].data = (void*)0;a -- done by Init */ |
---|
3179 | |
---|
3180 | return spectrumNoSingularity; |
---|
3181 | } |
---|
3182 | |
---|
3183 | // ------------------------------------------ |
---|
3184 | // check if the singularity h is isolated |
---|
3185 | // ------------------------------------------ |
---|
3186 | |
---|
3187 | for( i=rVar(currRing); i>0; i-- ) |
---|
3188 | { |
---|
3189 | if( hasAxis( stdJ,i, currRing )==FALSE ) |
---|
3190 | { |
---|
3191 | return spectrumNotIsolated; |
---|
3192 | } |
---|
3193 | } |
---|
3194 | |
---|
3195 | // ------------------------------------------ |
---|
3196 | // compute the highest corner hc of stdJ |
---|
3197 | // ------------------------------------------ |
---|
3198 | |
---|
3199 | #ifdef SPECTRUM_DEBUG |
---|
3200 | #ifdef SPECTRUM_PRINT |
---|
3201 | #ifdef SPECTRUM_IOSTREAM |
---|
3202 | cout << "\n computing the highest corner...\n"; |
---|
3203 | #else |
---|
3204 | fprintf( stdout,"\n computing the highest corner...\n" ); |
---|
3205 | #endif |
---|
3206 | #endif |
---|
3207 | #endif |
---|
3208 | |
---|
3209 | poly hc = (poly)NULL; |
---|
3210 | |
---|
3211 | scComputeHC( stdJ,currQuotient, 0,hc ); |
---|
3212 | |
---|
3213 | if( hc!=(poly)NULL ) |
---|
3214 | { |
---|
3215 | pGetCoeff(hc) = nInit(1); |
---|
3216 | |
---|
3217 | for( i=rVar(currRing); i>0; i-- ) |
---|
3218 | { |
---|
3219 | if( pGetExp( hc,i )>0 ) pDecrExp( hc,i ); |
---|
3220 | } |
---|
3221 | pSetm( hc ); |
---|
3222 | } |
---|
3223 | else |
---|
3224 | { |
---|
3225 | return spectrumNoHC; |
---|
3226 | } |
---|
3227 | |
---|
3228 | #ifdef SPECTRUM_DEBUG |
---|
3229 | #ifdef SPECTRUM_PRINT |
---|
3230 | #ifdef SPECTRUM_IOSTREAM |
---|
3231 | cout << " "; |
---|
3232 | #else |
---|
3233 | fprintf( stdout," " ); |
---|
3234 | #endif |
---|
3235 | pWrite( hc ); |
---|
3236 | #endif |
---|
3237 | #endif |
---|
3238 | |
---|
3239 | // ---------------------------------------- |
---|
3240 | // compute the Newton polygon nph of h |
---|
3241 | // ---------------------------------------- |
---|
3242 | |
---|
3243 | #ifdef SPECTRUM_DEBUG |
---|
3244 | #ifdef SPECTRUM_PRINT |
---|
3245 | #ifdef SPECTRUM_IOSTREAM |
---|
3246 | cout << "\n computing the newton polygon...\n"; |
---|
3247 | #else |
---|
3248 | fprintf( stdout,"\n computing the newton polygon...\n" ); |
---|
3249 | #endif |
---|
3250 | #endif |
---|
3251 | #endif |
---|
3252 | |
---|
3253 | newtonPolygon nph( h, currRing ); |
---|
3254 | |
---|
3255 | #ifdef SPECTRUM_DEBUG |
---|
3256 | #ifdef SPECTRUM_PRINT |
---|
3257 | cout << nph; |
---|
3258 | #endif |
---|
3259 | #endif |
---|
3260 | |
---|
3261 | // ----------------------------------------------- |
---|
3262 | // compute the weight corner wc of (stdj,nph) |
---|
3263 | // ----------------------------------------------- |
---|
3264 | |
---|
3265 | #ifdef SPECTRUM_DEBUG |
---|
3266 | #ifdef SPECTRUM_PRINT |
---|
3267 | #ifdef SPECTRUM_IOSTREAM |
---|
3268 | cout << "\n computing the weight corner...\n"; |
---|
3269 | #else |
---|
3270 | fprintf( stdout,"\n computing the weight corner...\n" ); |
---|
3271 | #endif |
---|
3272 | #endif |
---|
3273 | #endif |
---|
3274 | |
---|
3275 | poly wc = ( fast==0 ? pCopy( hc ) : |
---|
3276 | ( fast==1 ? computeWC( nph,(Rational)rVar(currRing), currRing ) : |
---|
3277 | /* fast==2 */computeWC( nph, |
---|
3278 | ((Rational)rVar(currRing))/(Rational)2, currRing ) ) ); |
---|
3279 | |
---|
3280 | #ifdef SPECTRUM_DEBUG |
---|
3281 | #ifdef SPECTRUM_PRINT |
---|
3282 | #ifdef SPECTRUM_IOSTREAM |
---|
3283 | cout << " "; |
---|
3284 | #else |
---|
3285 | fprintf( stdout," " ); |
---|
3286 | #endif |
---|
3287 | pWrite( wc ); |
---|
3288 | #endif |
---|
3289 | #endif |
---|
3290 | |
---|
3291 | // ------------- |
---|
3292 | // compute NF |
---|
3293 | // ------------- |
---|
3294 | |
---|
3295 | #ifdef SPECTRUM_DEBUG |
---|
3296 | #ifdef SPECTRUM_PRINT |
---|
3297 | #ifdef SPECTRUM_IOSTREAM |
---|
3298 | cout << "\n computing NF...\n" << endl; |
---|
3299 | #else |
---|
3300 | fprintf( stdout,"\n computing NF...\n" ); |
---|
3301 | #endif |
---|
3302 | #endif |
---|
3303 | #endif |
---|
3304 | |
---|
3305 | spectrumPolyList NF( &nph ); |
---|
3306 | |
---|
3307 | computeNF( stdJ,hc,wc,&NF, currRing ); |
---|
3308 | |
---|
3309 | #ifdef SPECTRUM_DEBUG |
---|
3310 | #ifdef SPECTRUM_PRINT |
---|
3311 | cout << NF; |
---|
3312 | #ifdef SPECTRUM_IOSTREAM |
---|
3313 | cout << endl; |
---|
3314 | #else |
---|
3315 | fprintf( stdout,"\n" ); |
---|
3316 | #endif |
---|
3317 | #endif |
---|
3318 | #endif |
---|
3319 | |
---|
3320 | // ---------------------------- |
---|
3321 | // compute the spectrum of h |
---|
3322 | // ---------------------------- |
---|
3323 | |
---|
3324 | return NF.spectrum( L,fast ); |
---|
3325 | } |
---|
3326 | |
---|
3327 | // ---------------------------------------------------------------------------- |
---|
3328 | // this procedure is called from the interpreter |
---|
3329 | // ---------------------------------------------------------------------------- |
---|
3330 | // first = polynomial |
---|
3331 | // result = list of spectrum numbers |
---|
3332 | // ---------------------------------------------------------------------------- |
---|
3333 | |
---|
3334 | void spectrumPrintError(spectrumState state) |
---|
3335 | { |
---|
3336 | switch( state ) |
---|
3337 | { |
---|
3338 | case spectrumZero: |
---|
3339 | WerrorS( "polynomial is zero" ); |
---|
3340 | break; |
---|
3341 | case spectrumBadPoly: |
---|
3342 | WerrorS( "polynomial has constant term" ); |
---|
3343 | break; |
---|
3344 | case spectrumNoSingularity: |
---|
3345 | WerrorS( "not a singularity" ); |
---|
3346 | break; |
---|
3347 | case spectrumNotIsolated: |
---|
3348 | WerrorS( "the singularity is not isolated" ); |
---|
3349 | break; |
---|
3350 | case spectrumNoHC: |
---|
3351 | WerrorS( "highest corner cannot be computed" ); |
---|
3352 | break; |
---|
3353 | case spectrumDegenerate: |
---|
3354 | WerrorS( "principal part is degenerate" ); |
---|
3355 | break; |
---|
3356 | case spectrumOK: |
---|
3357 | break; |
---|
3358 | |
---|
3359 | default: |
---|
3360 | WerrorS( "unknown error occurred" ); |
---|
3361 | break; |
---|
3362 | } |
---|
3363 | } |
---|
3364 | |
---|
3365 | BOOLEAN spectrumProc( leftv result,leftv first ) |
---|
3366 | { |
---|
3367 | spectrumState state = spectrumOK; |
---|
3368 | |
---|
3369 | // ------------------- |
---|
3370 | // check consistency |
---|
3371 | // ------------------- |
---|
3372 | |
---|
3373 | // check for a local ring |
---|
3374 | |
---|
3375 | if( !ringIsLocal(currRing ) ) |
---|
3376 | { |
---|
3377 | WerrorS( "only works for local orderings" ); |
---|
3378 | state = spectrumWrongRing; |
---|
3379 | } |
---|
3380 | |
---|
3381 | // no quotient rings are allowed |
---|
3382 | |
---|
3383 | else if( currRing->qideal != NULL ) |
---|
3384 | { |
---|
3385 | WerrorS( "does not work in quotient rings" ); |
---|
3386 | state = spectrumWrongRing; |
---|
3387 | } |
---|
3388 | else |
---|
3389 | { |
---|
3390 | lists L = (lists)NULL; |
---|
3391 | int flag = 1; // weight corner optimization is safe |
---|
3392 | |
---|
3393 | state = spectrumCompute( (poly)first->Data( ),&L,flag ); |
---|
3394 | |
---|
3395 | if( state==spectrumOK ) |
---|
3396 | { |
---|
3397 | result->rtyp = LIST_CMD; |
---|
3398 | result->data = (char*)L; |
---|
3399 | } |
---|
3400 | else |
---|
3401 | { |
---|
3402 | spectrumPrintError(state); |
---|
3403 | } |
---|
3404 | } |
---|
3405 | |
---|
3406 | return (state!=spectrumOK); |
---|
3407 | } |
---|
3408 | |
---|
3409 | // ---------------------------------------------------------------------------- |
---|
3410 | // this procedure is called from the interpreter |
---|
3411 | // ---------------------------------------------------------------------------- |
---|
3412 | // first = polynomial |
---|
3413 | // result = list of spectrum numbers |
---|
3414 | // ---------------------------------------------------------------------------- |
---|
3415 | |
---|
3416 | BOOLEAN spectrumfProc( leftv result,leftv first ) |
---|
3417 | { |
---|
3418 | spectrumState state = spectrumOK; |
---|
3419 | |
---|
3420 | // ------------------- |
---|
3421 | // check consistency |
---|
3422 | // ------------------- |
---|
3423 | |
---|
3424 | // check for a local polynomial ring |
---|
3425 | |
---|
3426 | if( currRing->OrdSgn != -1 ) |
---|
3427 | // ?? HS: the test above is also true for k[x][[y]], k[[x]][y] |
---|
3428 | // or should we use: |
---|
3429 | //if( !ringIsLocal( ) ) |
---|
3430 | { |
---|
3431 | WerrorS( "only works for local orderings" ); |
---|
3432 | state = spectrumWrongRing; |
---|
3433 | } |
---|
3434 | else if( currRing->qideal != NULL ) |
---|
3435 | { |
---|
3436 | WerrorS( "does not work in quotient rings" ); |
---|
3437 | state = spectrumWrongRing; |
---|
3438 | } |
---|
3439 | else |
---|
3440 | { |
---|
3441 | lists L = (lists)NULL; |
---|
3442 | int flag = 2; // symmetric optimization |
---|
3443 | |
---|
3444 | state = spectrumCompute( (poly)first->Data( ),&L,flag ); |
---|
3445 | |
---|
3446 | if( state==spectrumOK ) |
---|
3447 | { |
---|
3448 | result->rtyp = LIST_CMD; |
---|
3449 | result->data = (char*)L; |
---|
3450 | } |
---|
3451 | else |
---|
3452 | { |
---|
3453 | spectrumPrintError(state); |
---|
3454 | } |
---|
3455 | } |
---|
3456 | |
---|
3457 | return (state!=spectrumOK); |
---|
3458 | } |
---|
3459 | |
---|
3460 | // ---------------------------------------------------------------------------- |
---|
3461 | // check if a list is a spectrum |
---|
3462 | // check for: |
---|
3463 | // list has 6 elements |
---|
3464 | // 1st element is int (mu=Milnor number) |
---|
3465 | // 2nd element is int (pg=geometrical genus) |
---|
3466 | // 3rd element is int (n =number of different spectrum numbers) |
---|
3467 | // 4th element is intvec (num=numerators) |
---|
3468 | // 5th element is intvec (den=denomiantors) |
---|
3469 | // 6th element is intvec (mul=multiplicities) |
---|
3470 | // exactly n numerators |
---|
3471 | // exactly n denominators |
---|
3472 | // exactly n multiplicities |
---|
3473 | // mu>0 |
---|
3474 | // pg>=0 |
---|
3475 | // n>0 |
---|
3476 | // num>0 |
---|
3477 | // den>0 |
---|
3478 | // mul>0 |
---|
3479 | // symmetriy with respect to numberofvariables/2 |
---|
3480 | // monotony |
---|
3481 | // mu = sum of all multiplicities |
---|
3482 | // pg = sum of all multiplicities where num/den<=1 |
---|
3483 | // ---------------------------------------------------------------------------- |
---|
3484 | |
---|
3485 | semicState list_is_spectrum( lists l ) |
---|
3486 | { |
---|
3487 | // ------------------- |
---|
3488 | // check list length |
---|
3489 | // ------------------- |
---|
3490 | |
---|
3491 | if( l->nr < 5 ) |
---|
3492 | { |
---|
3493 | return semicListTooShort; |
---|
3494 | } |
---|
3495 | else if( l->nr > 5 ) |
---|
3496 | { |
---|
3497 | return semicListTooLong; |
---|
3498 | } |
---|
3499 | |
---|
3500 | // ------------- |
---|
3501 | // check types |
---|
3502 | // ------------- |
---|
3503 | |
---|
3504 | if( l->m[0].rtyp != INT_CMD ) |
---|
3505 | { |
---|
3506 | return semicListFirstElementWrongType; |
---|
3507 | } |
---|
3508 | else if( l->m[1].rtyp != INT_CMD ) |
---|
3509 | { |
---|
3510 | return semicListSecondElementWrongType; |
---|
3511 | } |
---|
3512 | else if( l->m[2].rtyp != INT_CMD ) |
---|
3513 | { |
---|
3514 | return semicListThirdElementWrongType; |
---|
3515 | } |
---|
3516 | else if( l->m[3].rtyp != INTVEC_CMD ) |
---|
3517 | { |
---|
3518 | return semicListFourthElementWrongType; |
---|
3519 | } |
---|
3520 | else if( l->m[4].rtyp != INTVEC_CMD ) |
---|
3521 | { |
---|
3522 | return semicListFifthElementWrongType; |
---|
3523 | } |
---|
3524 | else if( l->m[5].rtyp != INTVEC_CMD ) |
---|
3525 | { |
---|
3526 | return semicListSixthElementWrongType; |
---|
3527 | } |
---|
3528 | |
---|
3529 | // ------------------------- |
---|
3530 | // check number of entries |
---|
3531 | // ------------------------- |
---|
3532 | |
---|
3533 | int mu = (int)(long)(l->m[0].Data( )); |
---|
3534 | int pg = (int)(long)(l->m[1].Data( )); |
---|
3535 | int n = (int)(long)(l->m[2].Data( )); |
---|
3536 | |
---|
3537 | if( n <= 0 ) |
---|
3538 | { |
---|
3539 | return semicListNNegative; |
---|
3540 | } |
---|
3541 | |
---|
3542 | intvec *num = (intvec*)l->m[3].Data( ); |
---|
3543 | intvec *den = (intvec*)l->m[4].Data( ); |
---|
3544 | intvec *mul = (intvec*)l->m[5].Data( ); |
---|
3545 | |
---|
3546 | if( n != num->length( ) ) |
---|
3547 | { |
---|
3548 | return semicListWrongNumberOfNumerators; |
---|
3549 | } |
---|
3550 | else if( n != den->length( ) ) |
---|
3551 | { |
---|
3552 | return semicListWrongNumberOfDenominators; |
---|
3553 | } |
---|
3554 | else if( n != mul->length( ) ) |
---|
3555 | { |
---|
3556 | return semicListWrongNumberOfMultiplicities; |
---|
3557 | } |
---|
3558 | |
---|
3559 | // -------- |
---|
3560 | // values |
---|
3561 | // -------- |
---|
3562 | |
---|
3563 | if( mu <= 0 ) |
---|
3564 | { |
---|
3565 | return semicListMuNegative; |
---|
3566 | } |
---|
3567 | if( pg < 0 ) |
---|
3568 | { |
---|
3569 | return semicListPgNegative; |
---|
3570 | } |
---|
3571 | |
---|
3572 | int i; |
---|
3573 | |
---|
3574 | for( i=0; i<n; i++ ) |
---|
3575 | { |
---|
3576 | if( (*num)[i] <= 0 ) |
---|
3577 | { |
---|
3578 | return semicListNumNegative; |
---|
3579 | } |
---|
3580 | if( (*den)[i] <= 0 ) |
---|
3581 | { |
---|
3582 | return semicListDenNegative; |
---|
3583 | } |
---|
3584 | if( (*mul)[i] <= 0 ) |
---|
3585 | { |
---|
3586 | return semicListMulNegative; |
---|
3587 | } |
---|
3588 | } |
---|
3589 | |
---|
3590 | // ---------------- |
---|
3591 | // check symmetry |
---|
3592 | // ---------------- |
---|
3593 | |
---|
3594 | int j; |
---|
3595 | |
---|
3596 | for( i=0, j=n-1; i<=j; i++,j-- ) |
---|
3597 | { |
---|
3598 | if( (*num)[i] != rVar(currRing)*((*den)[i]) - (*num)[j] || |
---|
3599 | (*den)[i] != (*den)[j] || |
---|
3600 | (*mul)[i] != (*mul)[j] ) |
---|
3601 | { |
---|
3602 | return semicListNotSymmetric; |
---|
3603 | } |
---|
3604 | } |
---|
3605 | |
---|
3606 | // ---------------- |
---|
3607 | // check monotony |
---|
3608 | // ---------------- |
---|
3609 | |
---|
3610 | for( i=0, j=1; i<n/2; i++,j++ ) |
---|
3611 | { |
---|
3612 | if( (*num)[i]*(*den)[j] >= (*num)[j]*(*den)[i] ) |
---|
3613 | { |
---|
3614 | return semicListNotMonotonous; |
---|
3615 | } |
---|
3616 | } |
---|
3617 | |
---|
3618 | // --------------------- |
---|
3619 | // check Milnor number |
---|
3620 | // --------------------- |
---|
3621 | |
---|
3622 | for( mu=0, i=0; i<n; i++ ) |
---|
3623 | { |
---|
3624 | mu += (*mul)[i]; |
---|
3625 | } |
---|
3626 | |
---|
3627 | if( mu != (int)(long)(l->m[0].Data( )) ) |
---|
3628 | { |
---|
3629 | return semicListMilnorWrong; |
---|
3630 | } |
---|
3631 | |
---|
3632 | // ------------------------- |
---|
3633 | // check geometrical genus |
---|
3634 | // ------------------------- |
---|
3635 | |
---|
3636 | for( pg=0, i=0; i<n; i++ ) |
---|
3637 | { |
---|
3638 | if( (*num)[i]<=(*den)[i] ) |
---|
3639 | { |
---|
3640 | pg += (*mul)[i]; |
---|
3641 | } |
---|
3642 | } |
---|
3643 | |
---|
3644 | if( pg != (int)(long)(l->m[1].Data( )) ) |
---|
3645 | { |
---|
3646 | return semicListPGWrong; |
---|
3647 | } |
---|
3648 | |
---|
3649 | return semicOK; |
---|
3650 | } |
---|
3651 | |
---|
3652 | // ---------------------------------------------------------------------------- |
---|
3653 | // this procedure is called from the interpreter |
---|
3654 | // ---------------------------------------------------------------------------- |
---|
3655 | // first = list of spectrum numbers |
---|
3656 | // second = list of spectrum numbers |
---|
3657 | // result = sum of the two lists |
---|
3658 | // ---------------------------------------------------------------------------- |
---|
3659 | |
---|
3660 | BOOLEAN spaddProc( leftv result,leftv first,leftv second ) |
---|
3661 | { |
---|
3662 | semicState state; |
---|
3663 | |
---|
3664 | // ----------------- |
---|
3665 | // check arguments |
---|
3666 | // ----------------- |
---|
3667 | |
---|
3668 | lists l1 = (lists)first->Data( ); |
---|
3669 | lists l2 = (lists)second->Data( ); |
---|
3670 | |
---|
3671 | if( (state=list_is_spectrum( l1 )) != semicOK ) |
---|
3672 | { |
---|
3673 | WerrorS( "first argument is not a spectrum:" ); |
---|
3674 | list_error( state ); |
---|
3675 | } |
---|
3676 | else if( (state=list_is_spectrum( l2 )) != semicOK ) |
---|
3677 | { |
---|
3678 | WerrorS( "second argument is not a spectrum:" ); |
---|
3679 | list_error( state ); |
---|
3680 | } |
---|
3681 | else |
---|
3682 | { |
---|
3683 | spectrum s1= spectrumFromList ( l1 ); |
---|
3684 | spectrum s2= spectrumFromList ( l2 ); |
---|
3685 | spectrum sum( s1+s2 ); |
---|
3686 | |
---|
3687 | result->rtyp = LIST_CMD; |
---|
3688 | result->data = (char*)(getList(sum)); |
---|
3689 | } |
---|
3690 | |
---|
3691 | return (state!=semicOK); |
---|
3692 | } |
---|
3693 | |
---|
3694 | // ---------------------------------------------------------------------------- |
---|
3695 | // this procedure is called from the interpreter |
---|
3696 | // ---------------------------------------------------------------------------- |
---|
3697 | // first = list of spectrum numbers |
---|
3698 | // second = integer |
---|
3699 | // result = the multiple of the first list by the second factor |
---|
3700 | // ---------------------------------------------------------------------------- |
---|
3701 | |
---|
3702 | BOOLEAN spmulProc( leftv result,leftv first,leftv second ) |
---|
3703 | { |
---|
3704 | semicState state; |
---|
3705 | |
---|
3706 | // ----------------- |
---|
3707 | // check arguments |
---|
3708 | // ----------------- |
---|
3709 | |
---|
3710 | lists l = (lists)first->Data( ); |
---|
3711 | int k = (int)(long)second->Data( ); |
---|
3712 | |
---|
3713 | if( (state=list_is_spectrum( l ))!=semicOK ) |
---|
3714 | { |
---|
3715 | WerrorS( "first argument is not a spectrum" ); |
---|
3716 | list_error( state ); |
---|
3717 | } |
---|
3718 | else if( k < 0 ) |
---|
3719 | { |
---|
3720 | WerrorS( "second argument should be positive" ); |
---|
3721 | state = semicMulNegative; |
---|
3722 | } |
---|
3723 | else |
---|
3724 | { |
---|
3725 | spectrum s= spectrumFromList( l ); |
---|
3726 | spectrum product( k*s ); |
---|
3727 | |
---|
3728 | result->rtyp = LIST_CMD; |
---|
3729 | result->data = (char*)getList(product); |
---|
3730 | } |
---|
3731 | |
---|
3732 | return (state!=semicOK); |
---|
3733 | } |
---|
3734 | |
---|
3735 | // ---------------------------------------------------------------------------- |
---|
3736 | // this procedure is called from the interpreter |
---|
3737 | // ---------------------------------------------------------------------------- |
---|
3738 | // first = list of spectrum numbers |
---|
3739 | // second = list of spectrum numbers |
---|
3740 | // result = semicontinuity index |
---|
3741 | // ---------------------------------------------------------------------------- |
---|
3742 | |
---|
3743 | BOOLEAN semicProc3 ( leftv res,leftv u,leftv v,leftv w ) |
---|
3744 | { |
---|
3745 | semicState state; |
---|
3746 | BOOLEAN qh=(((int)(long)w->Data())==1); |
---|
3747 | |
---|
3748 | // ----------------- |
---|
3749 | // check arguments |
---|
3750 | // ----------------- |
---|
3751 | |
---|
3752 | lists l1 = (lists)u->Data( ); |
---|
3753 | lists l2 = (lists)v->Data( ); |
---|
3754 | |
---|
3755 | if( (state=list_is_spectrum( l1 ))!=semicOK ) |
---|
3756 | { |
---|
3757 | WerrorS( "first argument is not a spectrum" ); |
---|
3758 | list_error( state ); |
---|
3759 | } |
---|
3760 | else if( (state=list_is_spectrum( l2 ))!=semicOK ) |
---|
3761 | { |
---|
3762 | WerrorS( "second argument is not a spectrum" ); |
---|
3763 | list_error( state ); |
---|
3764 | } |
---|
3765 | else |
---|
3766 | { |
---|
3767 | spectrum s1= spectrumFromList( l1 ); |
---|
3768 | spectrum s2= spectrumFromList( l2 ); |
---|
3769 | |
---|
3770 | res->rtyp = INT_CMD; |
---|
3771 | if (qh) |
---|
3772 | res->data = (void*)(s1.mult_spectrumh( s2 )); |
---|
3773 | else |
---|
3774 | res->data = (void*)(s1.mult_spectrum( s2 )); |
---|
3775 | } |
---|
3776 | |
---|
3777 | // ----------------- |
---|
3778 | // check status |
---|
3779 | // ----------------- |
---|
3780 | |
---|
3781 | return (state!=semicOK); |
---|
3782 | } |
---|
3783 | BOOLEAN semicProc ( leftv res,leftv u,leftv v ) |
---|
3784 | { |
---|
3785 | sleftv tmp; |
---|
3786 | memset(&tmp,0,sizeof(tmp)); |
---|
3787 | tmp.rtyp=INT_CMD; |
---|
3788 | /* tmp.data = (void *)0; -- done by memset */ |
---|
3789 | |
---|
3790 | return semicProc3(res,u,v,&tmp); |
---|
3791 | } |
---|
3792 | // from splist.cc |
---|
3793 | // ---------------------------------------------------------------------------- |
---|
3794 | // Compute the spectrum of a spectrumPolyList |
---|
3795 | // ---------------------------------------------------------------------------- |
---|
3796 | |
---|
3797 | /* former spectrumPolyList::spectrum ( lists*, int) */ |
---|
3798 | spectrumState spectrumStateFromList( spectrumPolyList& speclist, lists *L,int fast ) |
---|
3799 | { |
---|
3800 | spectrumPolyNode **node = &speclist.root; |
---|
3801 | spectrumPolyNode *search; |
---|
3802 | |
---|
3803 | poly f,tmp; |
---|
3804 | int found,cmp; |
---|
3805 | |
---|
3806 | Rational smax( ( fast==0 ? 0 : rVar(currRing) ), |
---|
3807 | ( fast==2 ? 2 : 1 ) ); |
---|
3808 | |
---|
3809 | Rational weight_prev( 0,1 ); |
---|
3810 | |
---|
3811 | int mu = 0; // the milnor number |
---|
3812 | int pg = 0; // the geometrical genus |
---|
3813 | int n = 0; // number of different spectral numbers |
---|
3814 | int z = 0; // number of spectral number equal to smax |
---|
3815 | |
---|
3816 | int k = 0; |
---|
3817 | |
---|
3818 | while( (*node)!=(spectrumPolyNode*)NULL && |
---|
3819 | ( fast==0 || (*node)->weight<=smax ) ) |
---|
3820 | { |
---|
3821 | // --------------------------------------- |
---|
3822 | // determine the first normal form which |
---|
3823 | // contains the monomial node->mon |
---|
3824 | // --------------------------------------- |
---|
3825 | |
---|
3826 | found = FALSE; |
---|
3827 | search = *node; |
---|
3828 | |
---|
3829 | while( search!=(spectrumPolyNode*)NULL && found==FALSE ) |
---|
3830 | { |
---|
3831 | if( search->nf!=(poly)NULL ) |
---|
3832 | { |
---|
3833 | f = search->nf; |
---|
3834 | |
---|
3835 | do |
---|
3836 | { |
---|
3837 | // -------------------------------- |
---|
3838 | // look for (*node)->mon in f |
---|
3839 | // -------------------------------- |
---|
3840 | |
---|
3841 | cmp = pCmp( (*node)->mon,f ); |
---|
3842 | |
---|
3843 | if( cmp<0 ) |
---|
3844 | { |
---|
3845 | f = pNext( f ); |
---|
3846 | } |
---|
3847 | else if( cmp==0 ) |
---|
3848 | { |
---|
3849 | // ----------------------------- |
---|
3850 | // we have found a normal form |
---|
3851 | // ----------------------------- |
---|
3852 | |
---|
3853 | found = TRUE; |
---|
3854 | |
---|
3855 | // normalize coefficient |
---|
3856 | |
---|
3857 | number inv = nInvers( pGetCoeff( f ) ); |
---|
3858 | pMult_nn( search->nf,inv ); |
---|
3859 | nDelete( &inv ); |
---|
3860 | |
---|
3861 | // exchange normal forms |
---|
3862 | |
---|
3863 | tmp = (*node)->nf; |
---|
3864 | (*node)->nf = search->nf; |
---|
3865 | search->nf = tmp; |
---|
3866 | } |
---|
3867 | } |
---|
3868 | while( cmp<0 && f!=(poly)NULL ); |
---|
3869 | } |
---|
3870 | search = search->next; |
---|
3871 | } |
---|
3872 | |
---|
3873 | if( found==FALSE ) |
---|
3874 | { |
---|
3875 | // ------------------------------------------------ |
---|
3876 | // the weight of node->mon is a spectrum number |
---|
3877 | // ------------------------------------------------ |
---|
3878 | |
---|
3879 | mu++; |
---|
3880 | |
---|
3881 | if( (*node)->weight<=(Rational)1 ) pg++; |
---|
3882 | if( (*node)->weight==smax ) z++; |
---|
3883 | if( (*node)->weight>weight_prev ) n++; |
---|
3884 | |
---|
3885 | weight_prev = (*node)->weight; |
---|
3886 | node = &((*node)->next); |
---|
3887 | } |
---|
3888 | else |
---|
3889 | { |
---|
3890 | // ----------------------------------------------- |
---|
3891 | // determine all other normal form which contain |
---|
3892 | // the monomial node->mon |
---|
3893 | // replace for node->mon its normal form |
---|
3894 | // ----------------------------------------------- |
---|
3895 | |
---|
3896 | while( search!=(spectrumPolyNode*)NULL ) |
---|
3897 | { |
---|
3898 | if( search->nf!=(poly)NULL ) |
---|
3899 | { |
---|
3900 | f = search->nf; |
---|
3901 | |
---|
3902 | do |
---|
3903 | { |
---|
3904 | // -------------------------------- |
---|
3905 | // look for (*node)->mon in f |
---|
3906 | // -------------------------------- |
---|
3907 | |
---|
3908 | cmp = pCmp( (*node)->mon,f ); |
---|
3909 | |
---|
3910 | if( cmp<0 ) |
---|
3911 | { |
---|
3912 | f = pNext( f ); |
---|
3913 | } |
---|
3914 | else if( cmp==0 ) |
---|
3915 | { |
---|
3916 | search->nf = pSub( search->nf, |
---|
3917 | ppMult_nn( (*node)->nf,pGetCoeff( f ) ) ); |
---|
3918 | pNorm( search->nf ); |
---|
3919 | } |
---|
3920 | } |
---|
3921 | while( cmp<0 && f!=(poly)NULL ); |
---|
3922 | } |
---|
3923 | search = search->next; |
---|
3924 | } |
---|
3925 | speclist.delete_node( node ); |
---|
3926 | } |
---|
3927 | |
---|
3928 | } |
---|
3929 | |
---|
3930 | // -------------------------------------------------------- |
---|
3931 | // fast computation exploits the symmetry of the spectrum |
---|
3932 | // -------------------------------------------------------- |
---|
3933 | |
---|
3934 | if( fast==2 ) |
---|
3935 | { |
---|
3936 | mu = 2*mu - z; |
---|
3937 | n = ( z > 0 ? 2*n - 1 : 2*n ); |
---|
3938 | } |
---|
3939 | |
---|
3940 | // -------------------------------------------------------- |
---|
3941 | // compute the spectrum numbers with their multiplicities |
---|
3942 | // -------------------------------------------------------- |
---|
3943 | |
---|
3944 | intvec *nom = new intvec( n ); |
---|
3945 | intvec *den = new intvec( n ); |
---|
3946 | intvec *mult = new intvec( n ); |
---|
3947 | |
---|
3948 | int count = 0; |
---|
3949 | int multiplicity = 1; |
---|
3950 | |
---|
3951 | for( search=speclist.root; search!=(spectrumPolyNode*)NULL && |
---|
3952 | ( fast==0 || search->weight<=smax ); |
---|
3953 | search=search->next ) |
---|
3954 | { |
---|
3955 | if( search->next==(spectrumPolyNode*)NULL || |
---|
3956 | search->weight<search->next->weight ) |
---|
3957 | { |
---|
3958 | (*nom) [count] = search->weight.get_num_si( ); |
---|
3959 | (*den) [count] = search->weight.get_den_si( ); |
---|
3960 | (*mult)[count] = multiplicity; |
---|
3961 | |
---|
3962 | multiplicity=1; |
---|
3963 | count++; |
---|
3964 | } |
---|
3965 | else |
---|
3966 | { |
---|
3967 | multiplicity++; |
---|
3968 | } |
---|
3969 | } |
---|
3970 | |
---|
3971 | // -------------------------------------------------------- |
---|
3972 | // fast computation exploits the symmetry of the spectrum |
---|
3973 | // -------------------------------------------------------- |
---|
3974 | |
---|
3975 | if( fast==2 ) |
---|
3976 | { |
---|
3977 | int n1,n2; |
---|
3978 | for( n1=0, n2=n-1; n1<n2; n1++, n2-- ) |
---|
3979 | { |
---|
3980 | (*nom) [n2] = rVar(currRing)*(*den)[n1]-(*nom)[n1]; |
---|
3981 | (*den) [n2] = (*den)[n1]; |
---|
3982 | (*mult)[n2] = (*mult)[n1]; |
---|
3983 | } |
---|
3984 | } |
---|
3985 | |
---|
3986 | // ----------------------------------- |
---|
3987 | // test if the spectrum is symmetric |
---|
3988 | // ----------------------------------- |
---|
3989 | |
---|
3990 | if( fast==0 || fast==1 ) |
---|
3991 | { |
---|
3992 | int symmetric=TRUE; |
---|
3993 | |
---|
3994 | for( int n1=0, n2=n-1 ; n1<n2 && symmetric==TRUE; n1++, n2-- ) |
---|
3995 | { |
---|
3996 | if( (*mult)[n1]!=(*mult)[n2] || |
---|
3997 | (*den) [n1]!= (*den)[n2] || |
---|
3998 | (*nom)[n1]+(*nom)[n2]!=rVar(currRing)*(*den) [n1] ) |
---|
3999 | { |
---|
4000 | symmetric = FALSE; |
---|
4001 | } |
---|
4002 | } |
---|
4003 | |
---|
4004 | if( symmetric==FALSE ) |
---|
4005 | { |
---|
4006 | // --------------------------------------------- |
---|
4007 | // the spectrum is not symmetric => degenerate |
---|
4008 | // principal part |
---|
4009 | // --------------------------------------------- |
---|
4010 | |
---|
4011 | *L = (lists)omAllocBin( slists_bin); |
---|
4012 | (*L)->Init( 1 ); |
---|
4013 | (*L)->m[0].rtyp = INT_CMD; // milnor number |
---|
4014 | (*L)->m[0].data = (void*)mu; |
---|
4015 | |
---|
4016 | return spectrumDegenerate; |
---|
4017 | } |
---|
4018 | } |
---|
4019 | |
---|
4020 | *L = (lists)omAllocBin( slists_bin); |
---|
4021 | |
---|
4022 | (*L)->Init( 6 ); |
---|
4023 | |
---|
4024 | (*L)->m[0].rtyp = INT_CMD; // milnor number |
---|
4025 | (*L)->m[1].rtyp = INT_CMD; // geometrical genus |
---|
4026 | (*L)->m[2].rtyp = INT_CMD; // number of spectrum values |
---|
4027 | (*L)->m[3].rtyp = INTVEC_CMD; // nominators |
---|
4028 | (*L)->m[4].rtyp = INTVEC_CMD; // denomiantors |
---|
4029 | (*L)->m[5].rtyp = INTVEC_CMD; // multiplicities |
---|
4030 | |
---|
4031 | (*L)->m[0].data = (void*)mu; |
---|
4032 | (*L)->m[1].data = (void*)pg; |
---|
4033 | (*L)->m[2].data = (void*)n; |
---|
4034 | (*L)->m[3].data = (void*)nom; |
---|
4035 | (*L)->m[4].data = (void*)den; |
---|
4036 | (*L)->m[5].data = (void*)mult; |
---|
4037 | |
---|
4038 | return spectrumOK; |
---|
4039 | } |
---|
4040 | |
---|
4041 | #endif |
---|
4042 | |
---|
4043 | //from mpr_inout.cc |
---|
4044 | extern void nPrint(number n); |
---|
4045 | |
---|
4046 | BOOLEAN loNewtonP( leftv res, leftv arg1 ) |
---|
4047 | { |
---|
4048 | res->data= (void*)loNewtonPolytope( (ideal)arg1->Data() ); |
---|
4049 | return FALSE; |
---|
4050 | } |
---|
4051 | |
---|
4052 | BOOLEAN loSimplex( leftv res, leftv args ) |
---|
4053 | { |
---|
4054 | if ( !(rField_is_long_R(currRing)) ) |
---|
4055 | { |
---|
4056 | WerrorS("Ground field not implemented!"); |
---|
4057 | return TRUE; |
---|
4058 | } |
---|
4059 | |
---|
4060 | simplex * LP; |
---|
4061 | matrix m; |
---|
4062 | |
---|
4063 | leftv v= args; |
---|
4064 | if ( v->Typ() != MATRIX_CMD ) // 1: matrix |
---|
4065 | return TRUE; |
---|
4066 | else |
---|
4067 | m= (matrix)(v->CopyD()); |
---|
4068 | |
---|
4069 | LP = new simplex(MATROWS(m),MATCOLS(m)); |
---|
4070 | LP->mapFromMatrix(m); |
---|
4071 | |
---|
4072 | v= v->next; |
---|
4073 | if ( v->Typ() != INT_CMD ) // 2: m = number of constraints |
---|
4074 | return TRUE; |
---|
4075 | else |
---|
4076 | LP->m= (int)(long)(v->Data()); |
---|
4077 | |
---|
4078 | v= v->next; |
---|
4079 | if ( v->Typ() != INT_CMD ) // 3: n = number of variables |
---|
4080 | return TRUE; |
---|
4081 | else |
---|
4082 | LP->n= (int)(long)(v->Data()); |
---|
4083 | |
---|
4084 | v= v->next; |
---|
4085 | if ( v->Typ() != INT_CMD ) // 4: m1 = number of <= constraints |
---|
4086 | return TRUE; |
---|
4087 | else |
---|
4088 | LP->m1= (int)(long)(v->Data()); |
---|
4089 | |
---|
4090 | v= v->next; |
---|
4091 | if ( v->Typ() != INT_CMD ) // 5: m2 = number of >= constraints |
---|
4092 | return TRUE; |
---|
4093 | else |
---|
4094 | LP->m2= (int)(long)(v->Data()); |
---|
4095 | |
---|
4096 | v= v->next; |
---|
4097 | if ( v->Typ() != INT_CMD ) // 6: m3 = number of == constraints |
---|
4098 | return TRUE; |
---|
4099 | else |
---|
4100 | LP->m3= (int)(long)(v->Data()); |
---|
4101 | |
---|
4102 | #ifdef mprDEBUG_PROT |
---|
4103 | Print("m (constraints) %d\n",LP->m); |
---|
4104 | Print("n (columns) %d\n",LP->n); |
---|
4105 | Print("m1 (<=) %d\n",LP->m1); |
---|
4106 | Print("m2 (>=) %d\n",LP->m2); |
---|
4107 | Print("m3 (==) %d\n",LP->m3); |
---|
4108 | #endif |
---|
4109 | |
---|
4110 | LP->compute(); |
---|
4111 | |
---|
4112 | lists lres= (lists)omAlloc( sizeof(slists) ); |
---|
4113 | lres->Init( 6 ); |
---|
4114 | |
---|
4115 | lres->m[0].rtyp= MATRIX_CMD; // output matrix |
---|
4116 | lres->m[0].data=(void*)LP->mapToMatrix(m); |
---|
4117 | |
---|
4118 | lres->m[1].rtyp= INT_CMD; // found a solution? |
---|
4119 | lres->m[1].data=(void*)LP->icase; |
---|
4120 | |
---|
4121 | lres->m[2].rtyp= INTVEC_CMD; |
---|
4122 | lres->m[2].data=(void*)LP->posvToIV(); |
---|
4123 | |
---|
4124 | lres->m[3].rtyp= INTVEC_CMD; |
---|
4125 | lres->m[3].data=(void*)LP->zrovToIV(); |
---|
4126 | |
---|
4127 | lres->m[4].rtyp= INT_CMD; |
---|
4128 | lres->m[4].data=(void*)LP->m; |
---|
4129 | |
---|
4130 | lres->m[5].rtyp= INT_CMD; |
---|
4131 | lres->m[5].data=(void*)LP->n; |
---|
4132 | |
---|
4133 | res->data= (void*)lres; |
---|
4134 | |
---|
4135 | return FALSE; |
---|
4136 | } |
---|
4137 | |
---|
4138 | BOOLEAN nuMPResMat( leftv res, leftv arg1, leftv arg2 ) |
---|
4139 | { |
---|
4140 | ideal gls = (ideal)(arg1->Data()); |
---|
4141 | int imtype= (int)(long)arg2->Data(); |
---|
4142 | |
---|
4143 | uResultant::resMatType mtype= determineMType( imtype ); |
---|
4144 | |
---|
4145 | // check input ideal ( = polynomial system ) |
---|
4146 | if ( mprIdealCheck( gls, arg1->Name(), mtype, true ) != mprOk ) |
---|
4147 | { |
---|
4148 | return TRUE; |
---|
4149 | } |
---|
4150 | |
---|
4151 | uResultant *resMat= new uResultant( gls, mtype, false ); |
---|
4152 | if (resMat!=NULL) |
---|
4153 | { |
---|
4154 | res->rtyp = MODUL_CMD; |
---|
4155 | res->data= (void*)resMat->accessResMat()->getMatrix(); |
---|
4156 | if (!errorreported) delete resMat; |
---|
4157 | } |
---|
4158 | return errorreported; |
---|
4159 | } |
---|
4160 | |
---|
4161 | BOOLEAN nuLagSolve( leftv res, leftv arg1, leftv arg2, leftv arg3 ) |
---|
4162 | { |
---|
4163 | |
---|
4164 | poly gls; |
---|
4165 | gls= (poly)(arg1->Data()); |
---|
4166 | int howclean= (int)(long)arg3->Data(); |
---|
4167 | |
---|
4168 | if ( !(rField_is_R(currRing) || |
---|
4169 | rField_is_Q(currRing) || |
---|
4170 | rField_is_long_R(currRing) || |
---|
4171 | rField_is_long_C(currRing)) ) |
---|
4172 | { |
---|
4173 | WerrorS("Ground field not implemented!"); |
---|
4174 | return TRUE; |
---|
4175 | } |
---|
4176 | |
---|
4177 | if ( !(rField_is_R(currRing) || rField_is_long_R(currRing) || \ |
---|
4178 | rField_is_long_C(currRing)) ) |
---|
4179 | { |
---|
4180 | unsigned long int ii = (unsigned long int)arg2->Data(); |
---|
4181 | setGMPFloatDigits( ii, ii ); |
---|
4182 | } |
---|
4183 | |
---|
4184 | if ( gls == NULL || pIsConstant( gls ) ) |
---|
4185 | { |
---|
4186 | WerrorS("Input polynomial is constant!"); |
---|
4187 | return TRUE; |
---|
4188 | } |
---|
4189 | |
---|
4190 | int ldummy; |
---|
4191 | int deg= pLDeg( gls, &ldummy, currRing ); |
---|
4192 | // int deg= pDeg( gls ); |
---|
4193 | int len= pLength( gls ); |
---|
4194 | int i,vpos=0; |
---|
4195 | poly piter; |
---|
4196 | lists elist; |
---|
4197 | lists rlist; |
---|
4198 | |
---|
4199 | elist= (lists)omAlloc( sizeof(slists) ); |
---|
4200 | elist->Init( 0 ); |
---|
4201 | |
---|
4202 | if ( rVar(currRing) > 1 ) |
---|
4203 | { |
---|
4204 | piter= gls; |
---|
4205 | for ( i= 1; i <= rVar(currRing); i++ ) |
---|
4206 | if ( pGetExp( piter, i ) ) |
---|
4207 | { |
---|
4208 | vpos= i; |
---|
4209 | break; |
---|
4210 | } |
---|
4211 | while ( piter ) |
---|
4212 | { |
---|
4213 | for ( i= 1; i <= rVar(currRing); i++ ) |
---|
4214 | if ( (vpos != i) && (pGetExp( piter, i ) != 0) ) |
---|
4215 | { |
---|
4216 | WerrorS("The input polynomial must be univariate!"); |
---|
4217 | return TRUE; |
---|
4218 | } |
---|
4219 | pIter( piter ); |
---|
4220 | } |
---|
4221 | } |
---|
4222 | |
---|
4223 | rootContainer * roots= new rootContainer(); |
---|
4224 | number * pcoeffs= (number *)omAlloc( (deg+1) * sizeof( number ) ); |
---|
4225 | piter= gls; |
---|
4226 | for ( i= deg; i >= 0; i-- ) |
---|
4227 | { |
---|
4228 | //if ( piter ) Print("deg %d, pDeg(piter) %d\n",i,pTotaldegree(piter)); |
---|
4229 | if ( piter && pTotaldegree(piter) == i ) |
---|
4230 | { |
---|
4231 | pcoeffs[i]= nCopy( pGetCoeff( piter ) ); |
---|
4232 | //nPrint( pcoeffs[i] );PrintS(" "); |
---|
4233 | pIter( piter ); |
---|
4234 | } |
---|
4235 | else |
---|
4236 | { |
---|
4237 | pcoeffs[i]= nInit(0); |
---|
4238 | } |
---|
4239 | } |
---|
4240 | |
---|
4241 | #ifdef mprDEBUG_PROT |
---|
4242 | for (i=deg; i >= 0; i--) |
---|
4243 | { |
---|
4244 | nPrint( pcoeffs[i] );PrintS(" "); |
---|
4245 | } |
---|
4246 | PrintLn(); |
---|
4247 | #endif |
---|
4248 | |
---|
4249 | roots->fillContainer( pcoeffs, NULL, 1, deg, rootContainer::onepoly, 1 ); |
---|
4250 | roots->solver( howclean ); |
---|
4251 | |
---|
4252 | int elem= roots->getAnzRoots(); |
---|
4253 | char *out; |
---|
4254 | char *dummy; |
---|
4255 | int j; |
---|
4256 | |
---|
4257 | rlist= (lists)omAlloc( sizeof(slists) ); |
---|
4258 | rlist->Init( elem ); |
---|
4259 | |
---|
4260 | if (rField_is_long_C(currRing)) |
---|
4261 | { |
---|
4262 | for ( j= 0; j < elem; j++ ) |
---|
4263 | { |
---|
4264 | rlist->m[j].rtyp=NUMBER_CMD; |
---|
4265 | rlist->m[j].data=(void *)nCopy((number)(roots->getRoot(j))); |
---|
4266 | //rlist->m[j].data=(void *)(number)(roots->getRoot(j)); |
---|
4267 | } |
---|
4268 | } |
---|
4269 | else |
---|
4270 | { |
---|
4271 | for ( j= 0; j < elem; j++ ) |
---|
4272 | { |
---|
4273 | dummy = complexToStr( (*roots)[j], gmp_output_digits, currRing->cf ); |
---|
4274 | rlist->m[j].rtyp=STRING_CMD; |
---|
4275 | rlist->m[j].data=(void *)dummy; |
---|
4276 | } |
---|
4277 | } |
---|
4278 | |
---|
4279 | elist->Clean(); |
---|
4280 | //omFreeSize( (ADDRESS) elist, sizeof(slists) ); |
---|
4281 | |
---|
4282 | // this is (via fillContainer) the same data as in root |
---|
4283 | //for ( i= deg; i >= 0; i-- ) nDelete( &pcoeffs[i] ); |
---|
4284 | //omFreeSize( (ADDRESS) pcoeffs, (deg+1) * sizeof( number ) ); |
---|
4285 | |
---|
4286 | delete roots; |
---|
4287 | |
---|
4288 | res->rtyp= LIST_CMD; |
---|
4289 | res->data= (void*)rlist; |
---|
4290 | |
---|
4291 | return FALSE; |
---|
4292 | } |
---|
4293 | |
---|
4294 | BOOLEAN nuVanderSys( leftv res, leftv arg1, leftv arg2, leftv arg3) |
---|
4295 | { |
---|
4296 | int i; |
---|
4297 | ideal p,w; |
---|
4298 | p= (ideal)arg1->Data(); |
---|
4299 | w= (ideal)arg2->Data(); |
---|
4300 | |
---|
4301 | // w[0] = f(p^0) |
---|
4302 | // w[1] = f(p^1) |
---|
4303 | // ... |
---|
4304 | // p can be a vector of numbers (multivariate polynom) |
---|
4305 | // or one number (univariate polynom) |
---|
4306 | // tdg = deg(f) |
---|
4307 | |
---|
4308 | int n= IDELEMS( p ); |
---|
4309 | int m= IDELEMS( w ); |
---|
4310 | int tdg= (int)(long)arg3->Data(); |
---|
4311 | |
---|
4312 | res->data= (void*)NULL; |
---|
4313 | |
---|
4314 | // check the input |
---|
4315 | if ( tdg < 1 ) |
---|
4316 | { |
---|
4317 | WerrorS("Last input parameter must be > 0!"); |
---|
4318 | return TRUE; |
---|
4319 | } |
---|
4320 | if ( n != rVar(currRing) ) |
---|
4321 | { |
---|
4322 | Werror("Size of first input ideal must be equal to %d!",rVar(currRing)); |
---|
4323 | return TRUE; |
---|
4324 | } |
---|
4325 | if ( m != (int)pow((double)tdg+1,(double)n) ) |
---|
4326 | { |
---|
4327 | Werror("Size of second input ideal must be equal to %d!", |
---|
4328 | (int)pow((double)tdg+1,(double)n)); |
---|
4329 | return TRUE; |
---|
4330 | } |
---|
4331 | if ( !(rField_is_Q(currRing) /* || |
---|
4332 | rField_is_R() || rField_is_long_R() || |
---|
4333 | rField_is_long_C()*/ ) ) |
---|
4334 | { |
---|
4335 | WerrorS("Ground field not implemented!"); |
---|
4336 | return TRUE; |
---|
4337 | } |
---|
4338 | |
---|
4339 | number tmp; |
---|
4340 | number *pevpoint= (number *)omAlloc( n * sizeof( number ) ); |
---|
4341 | for ( i= 0; i < n; i++ ) |
---|
4342 | { |
---|
4343 | pevpoint[i]=nInit(0); |
---|
4344 | if ( (p->m)[i] ) |
---|
4345 | { |
---|
4346 | tmp = pGetCoeff( (p->m)[i] ); |
---|
4347 | if ( nIsZero(tmp) || nIsOne(tmp) || nIsMOne(tmp) ) |
---|
4348 | { |
---|
4349 | omFreeSize( (ADDRESS)pevpoint, n * sizeof( number ) ); |
---|
4350 | WerrorS("Elements of first input ideal must not be equal to -1, 0, 1!"); |
---|
4351 | return TRUE; |
---|
4352 | } |
---|
4353 | } else tmp= NULL; |
---|
4354 | if ( !nIsZero(tmp) ) |
---|
4355 | { |
---|
4356 | if ( !pIsConstant((p->m)[i])) |
---|
4357 | { |
---|
4358 | omFreeSize( (ADDRESS)pevpoint, n * sizeof( number ) ); |
---|
4359 | WerrorS("Elements of first input ideal must be numbers!"); |
---|
4360 | return TRUE; |
---|
4361 | } |
---|
4362 | pevpoint[i]= nCopy( tmp ); |
---|
4363 | } |
---|
4364 | } |
---|
4365 | |
---|
4366 | number *wresults= (number *)omAlloc( m * sizeof( number ) ); |
---|
4367 | for ( i= 0; i < m; i++ ) |
---|
4368 | { |
---|
4369 | wresults[i]= nInit(0); |
---|
4370 | if ( (w->m)[i] && !nIsZero(pGetCoeff((w->m)[i])) ) |
---|
4371 | { |
---|
4372 | if ( !pIsConstant((w->m)[i])) |
---|
4373 | { |
---|
4374 | omFreeSize( (ADDRESS)pevpoint, n * sizeof( number ) ); |
---|
4375 | omFreeSize( (ADDRESS)wresults, m * sizeof( number ) ); |
---|
4376 | WerrorS("Elements of second input ideal must be numbers!"); |
---|
4377 | return TRUE; |
---|
4378 | } |
---|
4379 | wresults[i]= nCopy(pGetCoeff((w->m)[i])); |
---|
4380 | } |
---|
4381 | } |
---|
4382 | |
---|
4383 | vandermonde vm( m, n, tdg, pevpoint, FALSE ); |
---|
4384 | number *ncpoly= vm.interpolateDense( wresults ); |
---|
4385 | // do not free ncpoly[]!! |
---|
4386 | poly rpoly= vm.numvec2poly( ncpoly ); |
---|
4387 | |
---|
4388 | omFreeSize( (ADDRESS)pevpoint, n * sizeof( number ) ); |
---|
4389 | omFreeSize( (ADDRESS)wresults, m * sizeof( number ) ); |
---|
4390 | |
---|
4391 | res->data= (void*)rpoly; |
---|
4392 | return FALSE; |
---|
4393 | } |
---|
4394 | |
---|
4395 | BOOLEAN nuUResSolve( leftv res, leftv args ) |
---|
4396 | { |
---|
4397 | leftv v= args; |
---|
4398 | |
---|
4399 | ideal gls; |
---|
4400 | int imtype; |
---|
4401 | int howclean; |
---|
4402 | |
---|
4403 | // get ideal |
---|
4404 | if ( v->Typ() != IDEAL_CMD ) |
---|
4405 | return TRUE; |
---|
4406 | else gls= (ideal)(v->Data()); |
---|
4407 | v= v->next; |
---|
4408 | |
---|
4409 | // get resultant matrix type to use (0,1) |
---|
4410 | if ( v->Typ() != INT_CMD ) |
---|
4411 | return TRUE; |
---|
4412 | else imtype= (int)(long)v->Data(); |
---|
4413 | v= v->next; |
---|
4414 | |
---|
4415 | if (imtype==0) |
---|
4416 | { |
---|
4417 | ideal test_id=idInit(1,1); |
---|
4418 | int j; |
---|
4419 | for(j=IDELEMS(gls)-1;j>=0;j--) |
---|
4420 | { |
---|
4421 | if (gls->m[j]!=NULL) |
---|
4422 | { |
---|
4423 | test_id->m[0]=gls->m[j]; |
---|
4424 | intvec *dummy_w=idQHomWeight(test_id); |
---|
4425 | if (dummy_w!=NULL) |
---|
4426 | { |
---|
4427 | WerrorS("Newton polytope not of expected dimension"); |
---|
4428 | delete dummy_w; |
---|
4429 | return TRUE; |
---|
4430 | } |
---|
4431 | } |
---|
4432 | } |
---|
4433 | } |
---|
4434 | |
---|
4435 | // get and set precision in digits ( > 0 ) |
---|
4436 | if ( v->Typ() != INT_CMD ) |
---|
4437 | return TRUE; |
---|
4438 | else if ( !(rField_is_R(currRing) || rField_is_long_R(currRing) || \ |
---|
4439 | rField_is_long_C(currRing)) ) |
---|
4440 | { |
---|
4441 | unsigned long int ii=(unsigned long int)v->Data(); |
---|
4442 | setGMPFloatDigits( ii, ii ); |
---|
4443 | } |
---|
4444 | v= v->next; |
---|
4445 | |
---|
4446 | // get interpolation steps (0,1,2) |
---|
4447 | if ( v->Typ() != INT_CMD ) |
---|
4448 | return TRUE; |
---|
4449 | else howclean= (int)(long)v->Data(); |
---|
4450 | |
---|
4451 | uResultant::resMatType mtype= determineMType( imtype ); |
---|
4452 | int i,c,count; |
---|
4453 | lists listofroots= NULL; |
---|
4454 | lists emptylist; |
---|
4455 | number smv= NULL; |
---|
4456 | BOOLEAN interpolate_det= (mtype==uResultant::denseResMat)?TRUE:FALSE; |
---|
4457 | |
---|
4458 | //emptylist= (lists)omAlloc( sizeof(slists) ); |
---|
4459 | //emptylist->Init( 0 ); |
---|
4460 | |
---|
4461 | //res->rtyp = LIST_CMD; |
---|
4462 | //res->data= (void *)emptylist; |
---|
4463 | |
---|
4464 | // check input ideal ( = polynomial system ) |
---|
4465 | if ( mprIdealCheck( gls, args->Name(), mtype ) != mprOk ) |
---|
4466 | { |
---|
4467 | return TRUE; |
---|
4468 | } |
---|
4469 | |
---|
4470 | uResultant * ures; |
---|
4471 | rootContainer ** iproots; |
---|
4472 | rootContainer ** muiproots; |
---|
4473 | rootArranger * arranger; |
---|
4474 | |
---|
4475 | // main task 1: setup of resultant matrix |
---|
4476 | ures= new uResultant( gls, mtype ); |
---|
4477 | if ( ures->accessResMat()->initState() != resMatrixBase::ready ) |
---|
4478 | { |
---|
4479 | WerrorS("Error occurred during matrix setup!"); |
---|
4480 | return TRUE; |
---|
4481 | } |
---|
4482 | |
---|
4483 | // if dense resultant, check if minor nonsingular |
---|
4484 | if ( mtype == uResultant::denseResMat ) |
---|
4485 | { |
---|
4486 | smv= ures->accessResMat()->getSubDet(); |
---|
4487 | #ifdef mprDEBUG_PROT |
---|
4488 | PrintS("// Determinant of submatrix: ");nPrint(smv);PrintLn(); |
---|
4489 | #endif |
---|
4490 | if ( nIsZero(smv) ) |
---|
4491 | { |
---|
4492 | WerrorS("Unsuitable input ideal: Minor of resultant matrix is singular!"); |
---|
4493 | return TRUE; |
---|
4494 | } |
---|
4495 | } |
---|
4496 | |
---|
4497 | // main task 2: Interpolate specialized resultant polynomials |
---|
4498 | if ( interpolate_det ) |
---|
4499 | iproots= ures->interpolateDenseSP( false, smv ); |
---|
4500 | else |
---|
4501 | iproots= ures->specializeInU( false, smv ); |
---|
4502 | |
---|
4503 | // main task 3: Interpolate specialized resultant polynomials |
---|
4504 | if ( interpolate_det ) |
---|
4505 | muiproots= ures->interpolateDenseSP( true, smv ); |
---|
4506 | else |
---|
4507 | muiproots= ures->specializeInU( true, smv ); |
---|
4508 | |
---|
4509 | #ifdef mprDEBUG_PROT |
---|
4510 | c= iproots[0]->getAnzElems(); |
---|
4511 | for (i=0; i < c; i++) pWrite(iproots[i]->getPoly()); |
---|
4512 | c= muiproots[0]->getAnzElems(); |
---|
4513 | for (i=0; i < c; i++) pWrite(muiproots[i]->getPoly()); |
---|
4514 | #endif |
---|
4515 | |
---|
4516 | // main task 4: Compute roots of specialized polys and match them up |
---|
4517 | arranger= new rootArranger( iproots, muiproots, howclean ); |
---|
4518 | arranger->solve_all(); |
---|
4519 | |
---|
4520 | // get list of roots |
---|
4521 | if ( arranger->success() ) |
---|
4522 | { |
---|
4523 | arranger->arrange(); |
---|
4524 | listofroots= arranger->listOfRoots( gmp_output_digits ); |
---|
4525 | } |
---|
4526 | else |
---|
4527 | { |
---|
4528 | WerrorS("Solver was unable to find any roots!"); |
---|
4529 | return TRUE; |
---|
4530 | } |
---|
4531 | |
---|
4532 | // free everything |
---|
4533 | count= iproots[0]->getAnzElems(); |
---|
4534 | for (i=0; i < count; i++) delete iproots[i]; |
---|
4535 | omFreeSize( (ADDRESS) iproots, count * sizeof(rootContainer*) ); |
---|
4536 | count= muiproots[0]->getAnzElems(); |
---|
4537 | for (i=0; i < count; i++) delete muiproots[i]; |
---|
4538 | omFreeSize( (ADDRESS) muiproots, count * sizeof(rootContainer*) ); |
---|
4539 | |
---|
4540 | delete ures; |
---|
4541 | delete arranger; |
---|
4542 | nDelete( &smv ); |
---|
4543 | |
---|
4544 | res->data= (void *)listofroots; |
---|
4545 | |
---|
4546 | //emptylist->Clean(); |
---|
4547 | // omFreeSize( (ADDRESS) emptylist, sizeof(slists) ); |
---|
4548 | |
---|
4549 | return FALSE; |
---|
4550 | } |
---|
4551 | |
---|
4552 | // from mpr_numeric.cc |
---|
4553 | lists rootArranger::listOfRoots( const unsigned int oprec ) |
---|
4554 | { |
---|
4555 | int i,j,tr; |
---|
4556 | int count= roots[0]->getAnzRoots(); // number of roots |
---|
4557 | int elem= roots[0]->getAnzElems(); // number of koordinates per root |
---|
4558 | |
---|
4559 | lists listofroots= (lists)omAlloc( sizeof(slists) ); // must be done this way! |
---|
4560 | |
---|
4561 | if ( found_roots ) |
---|
4562 | { |
---|
4563 | listofroots->Init( count ); |
---|
4564 | |
---|
4565 | for (i=0; i < count; i++) |
---|
4566 | { |
---|
4567 | lists onepoint= (lists)omAlloc(sizeof(slists)); // must be done this way! |
---|
4568 | onepoint->Init(elem); |
---|
4569 | for ( j= 0; j < elem; j++ ) |
---|
4570 | { |
---|
4571 | if ( !rField_is_long_C(currRing) ) |
---|
4572 | { |
---|
4573 | onepoint->m[j].rtyp=STRING_CMD; |
---|
4574 | onepoint->m[j].data=(void *)complexToStr((*roots[j])[i],oprec, |
---|
4575 | currRing->cf); |
---|
4576 | } |
---|
4577 | else |
---|
4578 | { |
---|
4579 | onepoint->m[j].rtyp=NUMBER_CMD; |
---|
4580 | onepoint->m[j].data=(void *)nCopy((number)(roots[j]->getRoot(i))); |
---|
4581 | } |
---|
4582 | onepoint->m[j].next= NULL; |
---|
4583 | onepoint->m[j].name= NULL; |
---|
4584 | } |
---|
4585 | listofroots->m[i].rtyp=LIST_CMD; |
---|
4586 | listofroots->m[i].data=(void *)onepoint; |
---|
4587 | listofroots->m[j].next= NULL; |
---|
4588 | listofroots->m[j].name= NULL; |
---|
4589 | } |
---|
4590 | |
---|
4591 | } |
---|
4592 | else |
---|
4593 | { |
---|
4594 | listofroots->Init( 0 ); |
---|
4595 | } |
---|
4596 | |
---|
4597 | return listofroots; |
---|
4598 | } |
---|
4599 | |
---|
4600 | // from ring.cc |
---|
4601 | void rSetHdl(idhdl h) |
---|
4602 | { |
---|
4603 | int i; |
---|
4604 | ring rg = NULL; |
---|
4605 | if (h!=NULL) |
---|
4606 | { |
---|
4607 | // Print(" new ring:%s (l:%d)\n",IDID(h),IDLEV(h)); |
---|
4608 | rg = IDRING(h); |
---|
4609 | if (rg==NULL) return; //id <>NULL, ring==NULL |
---|
4610 | omCheckAddrSize((ADDRESS)h,sizeof(idrec)); |
---|
4611 | if (IDID(h)) // OB: ???? |
---|
4612 | omCheckAddr((ADDRESS)IDID(h)); |
---|
4613 | rTest(rg); |
---|
4614 | } |
---|
4615 | |
---|
4616 | // clean up history |
---|
4617 | if (sLastPrinted.RingDependend()) |
---|
4618 | { |
---|
4619 | sLastPrinted.CleanUp(); |
---|
4620 | memset(&sLastPrinted,0,sizeof(sleftv)); |
---|
4621 | } |
---|
4622 | |
---|
4623 | // test for valid "currRing": |
---|
4624 | if ((rg!=NULL) && (rg->idroot==NULL)) |
---|
4625 | { |
---|
4626 | ring old=rg; |
---|
4627 | rg=rAssure_HasComp(rg); |
---|
4628 | if (old!=rg) |
---|
4629 | { |
---|
4630 | rKill(old); |
---|
4631 | IDRING(h)=rg; |
---|
4632 | } |
---|
4633 | } |
---|
4634 | /*------------ change the global ring -----------------------*/ |
---|
4635 | rChangeCurrRing(rg); |
---|
4636 | currRingHdl = h; |
---|
4637 | } |
---|
4638 | |
---|
4639 | BOOLEAN rSleftvOrdering2Ordering(sleftv *ord, ring R) |
---|
4640 | { |
---|
4641 | int last = 0, o=0, n = 1, i=0, typ = 1, j; |
---|
4642 | sleftv *sl = ord; |
---|
4643 | |
---|
4644 | // determine nBlocks |
---|
4645 | while (sl!=NULL) |
---|
4646 | { |
---|
4647 | intvec *iv = (intvec *)(sl->data); |
---|
4648 | if (((*iv)[1]==ringorder_c)||((*iv)[1]==ringorder_C)) |
---|
4649 | i++; |
---|
4650 | else if ((*iv)[1]==ringorder_L) |
---|
4651 | { |
---|
4652 | R->bitmask=(*iv)[2]; |
---|
4653 | n--; |
---|
4654 | } |
---|
4655 | else if (((*iv)[1]!=ringorder_a) |
---|
4656 | && ((*iv)[1]!=ringorder_a64)) |
---|
4657 | o++; |
---|
4658 | n++; |
---|
4659 | sl=sl->next; |
---|
4660 | } |
---|
4661 | // check whether at least one real ordering |
---|
4662 | if (o==0) |
---|
4663 | { |
---|
4664 | WerrorS("invalid combination of orderings"); |
---|
4665 | return TRUE; |
---|
4666 | } |
---|
4667 | // if no c/C ordering is given, increment n |
---|
4668 | if (i==0) n++; |
---|
4669 | else if (i != 1) |
---|
4670 | { |
---|
4671 | // throw error if more than one is given |
---|
4672 | WerrorS("more than one ordering c/C specified"); |
---|
4673 | return TRUE; |
---|
4674 | } |
---|
4675 | |
---|
4676 | // initialize fields of R |
---|
4677 | R->order=(int *)omAlloc0(n*sizeof(int)); |
---|
4678 | R->block0=(int *)omAlloc0(n*sizeof(int)); |
---|
4679 | R->block1=(int *)omAlloc0(n*sizeof(int)); |
---|
4680 | R->wvhdl=(int**)omAlloc0(n*sizeof(int_ptr)); |
---|
4681 | |
---|
4682 | int *weights=(int*)omAlloc0((R->N+1)*sizeof(int)); |
---|
4683 | |
---|
4684 | // init order, so that rBlocks works correctly |
---|
4685 | for (j=0; j < n-1; j++) |
---|
4686 | R->order[j] = (int) ringorder_unspec; |
---|
4687 | // set last _C order, if no c/C order was given |
---|
4688 | if (i == 0) R->order[n-2] = ringorder_C; |
---|
4689 | |
---|
4690 | /* init orders */ |
---|
4691 | sl=ord; |
---|
4692 | n=-1; |
---|
4693 | while (sl!=NULL) |
---|
4694 | { |
---|
4695 | intvec *iv; |
---|
4696 | iv = (intvec *)(sl->data); |
---|
4697 | if ((*iv)[1]!=ringorder_L) |
---|
4698 | { |
---|
4699 | n++; |
---|
4700 | |
---|
4701 | /* the format of an ordering: |
---|
4702 | * iv[0]: factor |
---|
4703 | * iv[1]: ordering |
---|
4704 | * iv[2..end]: weights |
---|
4705 | */ |
---|
4706 | R->order[n] = (*iv)[1]; |
---|
4707 | typ=1; |
---|
4708 | switch ((*iv)[1]) |
---|
4709 | { |
---|
4710 | case ringorder_ws: |
---|
4711 | case ringorder_Ws: |
---|
4712 | typ=-1; |
---|
4713 | case ringorder_wp: |
---|
4714 | case ringorder_Wp: |
---|
4715 | R->wvhdl[n]=(int*)omAlloc((iv->length()-1)*sizeof(int)); |
---|
4716 | R->block0[n] = last+1; |
---|
4717 | for (i=2; i<iv->length(); i++) |
---|
4718 | { |
---|
4719 | R->wvhdl[n][i-2] = (*iv)[i]; |
---|
4720 | last++; |
---|
4721 | if (weights[last]==0) weights[last]=(*iv)[i]*typ; |
---|
4722 | } |
---|
4723 | R->block1[n] = last; |
---|
4724 | break; |
---|
4725 | case ringorder_ls: |
---|
4726 | case ringorder_ds: |
---|
4727 | case ringorder_Ds: |
---|
4728 | case ringorder_rs: |
---|
4729 | typ=-1; |
---|
4730 | case ringorder_lp: |
---|
4731 | case ringorder_dp: |
---|
4732 | case ringorder_Dp: |
---|
4733 | case ringorder_rp: |
---|
4734 | R->block0[n] = last+1; |
---|
4735 | if (iv->length() == 3) last+=(*iv)[2]; |
---|
4736 | else last += (*iv)[0]; |
---|
4737 | R->block1[n] = last; |
---|
4738 | //if ((R->block0[n]>R->block1[n]) |
---|
4739 | //|| (R->block1[n]>rVar(R))) |
---|
4740 | //{ |
---|
4741 | // R->block1[n]=rVar(R); |
---|
4742 | // //WerrorS("ordering larger than number of variables"); |
---|
4743 | // break; |
---|
4744 | //} |
---|
4745 | if (rCheckIV(iv)) return TRUE; |
---|
4746 | for(i=si_min(rVar(R),R->block1[n]);i>=R->block0[n];i--) |
---|
4747 | { |
---|
4748 | if (weights[i]==0) weights[i]=typ; |
---|
4749 | } |
---|
4750 | break; |
---|
4751 | |
---|
4752 | case ringorder_s: // no 'rank' params! |
---|
4753 | { |
---|
4754 | |
---|
4755 | if(iv->length() > 3) |
---|
4756 | return TRUE; |
---|
4757 | |
---|
4758 | if(iv->length() == 3) |
---|
4759 | { |
---|
4760 | const int s = (*iv)[2]; |
---|
4761 | R->block0[n] = s; |
---|
4762 | R->block1[n] = s; |
---|
4763 | } |
---|
4764 | break; |
---|
4765 | } |
---|
4766 | case ringorder_IS: |
---|
4767 | { |
---|
4768 | if(iv->length() != 3) return TRUE; |
---|
4769 | |
---|
4770 | const int s = (*iv)[2]; |
---|
4771 | |
---|
4772 | if( 1 < s || s < -1 ) return TRUE; |
---|
4773 | |
---|
4774 | R->block0[n] = s; |
---|
4775 | R->block1[n] = s; |
---|
4776 | break; |
---|
4777 | } |
---|
4778 | case ringorder_S: |
---|
4779 | case ringorder_c: |
---|
4780 | case ringorder_C: |
---|
4781 | { |
---|
4782 | if (rCheckIV(iv)) return TRUE; |
---|
4783 | break; |
---|
4784 | } |
---|
4785 | case ringorder_aa: |
---|
4786 | case ringorder_a: |
---|
4787 | { |
---|
4788 | R->block0[n] = last+1; |
---|
4789 | R->block1[n] = si_min(last+iv->length()-2 , rVar(R)); |
---|
4790 | R->wvhdl[n] = (int*)omAlloc((iv->length()-1)*sizeof(int)); |
---|
4791 | for (i=2; i<iv->length(); i++) |
---|
4792 | { |
---|
4793 | R->wvhdl[n][i-2]=(*iv)[i]; |
---|
4794 | last++; |
---|
4795 | if (weights[last]==0) weights[last]=(*iv)[i]*typ; |
---|
4796 | } |
---|
4797 | last=R->block0[n]-1; |
---|
4798 | break; |
---|
4799 | } |
---|
4800 | case ringorder_a64: |
---|
4801 | { |
---|
4802 | R->block0[n] = last+1; |
---|
4803 | R->block1[n] = si_min(last+iv->length()-2 , rVar(R)); |
---|
4804 | R->wvhdl[n] = (int*)omAlloc((iv->length()-1)*sizeof(int64)); |
---|
4805 | int64 *w=(int64 *)R->wvhdl[n]; |
---|
4806 | for (i=2; i<iv->length(); i++) |
---|
4807 | { |
---|
4808 | w[i-2]=(*iv)[i]; |
---|
4809 | last++; |
---|
4810 | if (weights[last]==0) weights[last]=(*iv)[i]*typ; |
---|
4811 | } |
---|
4812 | last=R->block0[n]-1; |
---|
4813 | break; |
---|
4814 | } |
---|
4815 | case ringorder_M: |
---|
4816 | { |
---|
4817 | int Mtyp=rTypeOfMatrixOrder(iv); |
---|
4818 | if (Mtyp==0) return TRUE; |
---|
4819 | if (Mtyp==-1) typ = -1; |
---|
4820 | |
---|
4821 | R->wvhdl[n] =( int *)omAlloc((iv->length()-1)*sizeof(int)); |
---|
4822 | for (i=2; i<iv->length();i++) |
---|
4823 | R->wvhdl[n][i-2]=(*iv)[i]; |
---|
4824 | |
---|
4825 | R->block0[n] = last+1; |
---|
4826 | last += (int)sqrt((double)(iv->length()-2)); |
---|
4827 | R->block1[n] = last; |
---|
4828 | for(i=si_min(rVar(R),R->block1[n]);i>=R->block0[n];i--) |
---|
4829 | { |
---|
4830 | if (weights[i]==0) weights[i]=typ; |
---|
4831 | } |
---|
4832 | break; |
---|
4833 | } |
---|
4834 | |
---|
4835 | case ringorder_no: |
---|
4836 | R->order[n] = ringorder_unspec; |
---|
4837 | return TRUE; |
---|
4838 | |
---|
4839 | default: |
---|
4840 | Werror("Internal Error: Unknown ordering %d", (*iv)[1]); |
---|
4841 | R->order[n] = ringorder_unspec; |
---|
4842 | return TRUE; |
---|
4843 | } |
---|
4844 | } |
---|
4845 | sl=sl->next; |
---|
4846 | } |
---|
4847 | |
---|
4848 | // check for complete coverage |
---|
4849 | while ( n >= 0 && ( |
---|
4850 | (R->order[n]==ringorder_c) |
---|
4851 | || (R->order[n]==ringorder_C) |
---|
4852 | || (R->order[n]==ringorder_s) |
---|
4853 | || (R->order[n]==ringorder_S) |
---|
4854 | || (R->order[n]==ringorder_IS) |
---|
4855 | )) n--; |
---|
4856 | |
---|
4857 | assume( n >= 0 ); |
---|
4858 | |
---|
4859 | if (R->block1[n] != R->N) |
---|
4860 | { |
---|
4861 | if (((R->order[n]==ringorder_dp) || |
---|
4862 | (R->order[n]==ringorder_ds) || |
---|
4863 | (R->order[n]==ringorder_Dp) || |
---|
4864 | (R->order[n]==ringorder_Ds) || |
---|
4865 | (R->order[n]==ringorder_rp) || |
---|
4866 | (R->order[n]==ringorder_rs) || |
---|
4867 | (R->order[n]==ringorder_lp) || |
---|
4868 | (R->order[n]==ringorder_ls)) |
---|
4869 | && |
---|
4870 | R->block0[n] <= R->N) |
---|
4871 | { |
---|
4872 | R->block1[n] = R->N; |
---|
4873 | } |
---|
4874 | else |
---|
4875 | { |
---|
4876 | Werror("mismatch of number of vars (%d) and ordering (%d vars)", |
---|
4877 | R->N,R->block1[n]); |
---|
4878 | return TRUE; |
---|
4879 | } |
---|
4880 | } |
---|
4881 | // find OrdSgn: |
---|
4882 | R->OrdSgn = 1; |
---|
4883 | for(i=1;i<=R->N;i++) |
---|
4884 | { if (weights[i]<0) { R->OrdSgn=-1;break; }} |
---|
4885 | omFree(weights); |
---|
4886 | return FALSE; |
---|
4887 | } |
---|
4888 | |
---|
4889 | BOOLEAN rSleftvList2StringArray(sleftv* sl, char** p) |
---|
4890 | { |
---|
4891 | |
---|
4892 | while(sl!=NULL) |
---|
4893 | { |
---|
4894 | if (sl->Name() == sNoName) |
---|
4895 | { |
---|
4896 | if (sl->Typ()==POLY_CMD) |
---|
4897 | { |
---|
4898 | sleftv s_sl; |
---|
4899 | iiConvert(POLY_CMD,ANY_TYPE,-1,sl,&s_sl); |
---|
4900 | if (s_sl.Name() != sNoName) |
---|
4901 | *p = omStrDup(s_sl.Name()); |
---|
4902 | else |
---|
4903 | *p = NULL; |
---|
4904 | sl->next = s_sl.next; |
---|
4905 | s_sl.next = NULL; |
---|
4906 | s_sl.CleanUp(); |
---|
4907 | if (*p == NULL) return TRUE; |
---|
4908 | } |
---|
4909 | else |
---|
4910 | return TRUE; |
---|
4911 | } |
---|
4912 | else |
---|
4913 | *p = omStrDup(sl->Name()); |
---|
4914 | p++; |
---|
4915 | sl=sl->next; |
---|
4916 | } |
---|
4917 | return FALSE; |
---|
4918 | } |
---|
4919 | |
---|
4920 | const short MAX_SHORT = SHRT_MAX; // (1 << (sizeof(short)*8)) - 1; |
---|
4921 | |
---|
4922 | //////////////////// |
---|
4923 | // |
---|
4924 | // rInit itself: |
---|
4925 | // |
---|
4926 | // INPUT: s: name, pn: ch & parameter (names), rv: variable (names) |
---|
4927 | // ord: ordering |
---|
4928 | // RETURN: currRingHdl on success |
---|
4929 | // NULL on error |
---|
4930 | // NOTE: * makes new ring to current ring, on success |
---|
4931 | // * considers input sleftv's as read-only |
---|
4932 | //idhdl rInit(char *s, sleftv* pn, sleftv* rv, sleftv* ord) |
---|
4933 | ring rInit(sleftv* pn, sleftv* rv, sleftv* ord) |
---|
4934 | { |
---|
4935 | int ch; |
---|
4936 | #ifdef HAVE_RINGS |
---|
4937 | unsigned int ringtype = 0; |
---|
4938 | int_number modBase = NULL; |
---|
4939 | unsigned int modExponent = 1; |
---|
4940 | #endif |
---|
4941 | int float_len=0; |
---|
4942 | int float_len2=0; |
---|
4943 | ring R = NULL; |
---|
4944 | idhdl tmp = NULL; |
---|
4945 | BOOLEAN ffChar=FALSE; |
---|
4946 | int typ = 1; |
---|
4947 | |
---|
4948 | /* ch -------------------------------------------------------*/ |
---|
4949 | // get ch of ground field |
---|
4950 | int numberOfAllocatedBlocks; |
---|
4951 | |
---|
4952 | if (pn->Typ()==INT_CMD) |
---|
4953 | { |
---|
4954 | ch=(int)(long)pn->Data(); |
---|
4955 | } |
---|
4956 | else if ((pn->name != NULL) |
---|
4957 | && ((strcmp(pn->name,"real")==0) || (strcmp(pn->name,"complex")==0))) |
---|
4958 | { |
---|
4959 | BOOLEAN complex_flag=(strcmp(pn->name,"complex")==0); |
---|
4960 | ch=-1; |
---|
4961 | if ((pn->next!=NULL) && (pn->next->Typ()==INT_CMD)) |
---|
4962 | { |
---|
4963 | float_len=(int)(long)pn->next->Data(); |
---|
4964 | float_len2=float_len; |
---|
4965 | pn=pn->next; |
---|
4966 | if ((pn->next!=NULL) && (pn->next->Typ()==INT_CMD)) |
---|
4967 | { |
---|
4968 | float_len2=(int)(long)pn->next->Data(); |
---|
4969 | pn=pn->next; |
---|
4970 | } |
---|
4971 | } |
---|
4972 | if ((pn->next==NULL) && complex_flag) |
---|
4973 | { |
---|
4974 | pn->next=(leftv)omAlloc0Bin(sleftv_bin); |
---|
4975 | pn->next->name=omStrDup("i"); |
---|
4976 | } |
---|
4977 | } |
---|
4978 | #ifdef HAVE_RINGS |
---|
4979 | else if ((pn->name != NULL) && (strcmp(pn->name, "integer") == 0)) |
---|
4980 | { |
---|
4981 | modBase = (int_number) omAlloc(sizeof(mpz_t)); |
---|
4982 | mpz_init_set_si(modBase, 0); |
---|
4983 | if ((pn->next!=NULL) && (pn->next->Typ()==INT_CMD)) |
---|
4984 | { |
---|
4985 | mpz_set_ui(modBase, (int)(long) pn->next->Data()); |
---|
4986 | pn=pn->next; |
---|
4987 | if ((pn->next!=NULL) && (pn->next->Typ()==INT_CMD)) |
---|
4988 | { |
---|
4989 | modExponent = (long) pn->next->Data(); |
---|
4990 | pn=pn->next; |
---|
4991 | } |
---|
4992 | while ((pn->next!=NULL) && (pn->next->Typ()==INT_CMD)) |
---|
4993 | { |
---|
4994 | mpz_mul_ui(modBase, modBase, (int)(long) pn->next->Data()); |
---|
4995 | pn=pn->next; |
---|
4996 | } |
---|
4997 | } |
---|
4998 | if ((mpz_cmp_ui(modBase, 1) == 0) && (mpz_cmp_ui(modBase, 0) < 0)) |
---|
4999 | { |
---|
5000 | Werror("Wrong ground ring specification (module is 1)"); |
---|
5001 | goto rInitError; |
---|
5002 | } |
---|
5003 | if (modExponent < 1) |
---|
5004 | { |
---|
5005 | Werror("Wrong ground ring specification (exponent smaller than 1"); |
---|
5006 | goto rInitError; |
---|
5007 | } |
---|
5008 | // module is 0 ---> integers |
---|
5009 | if (mpz_cmp_ui(modBase, 0) == 0) |
---|
5010 | { |
---|
5011 | ch = 0; |
---|
5012 | ringtype = 4; |
---|
5013 | } |
---|
5014 | // we have an exponent |
---|
5015 | else if (modExponent > 1) |
---|
5016 | { |
---|
5017 | ch = modExponent; |
---|
5018 | if ((mpz_cmp_ui(modBase, 2) == 0) && (modExponent <= 8*sizeof(NATNUMBER))) |
---|
5019 | { |
---|
5020 | /* this branch should be active for modExponent = 2..32 resp. 2..64, |
---|
5021 | depending on the size of a long on the respective platform */ |
---|
5022 | ringtype = 1; // Use Z/2^ch |
---|
5023 | } |
---|
5024 | else |
---|
5025 | { |
---|
5026 | ringtype = 3; |
---|
5027 | } |
---|
5028 | } |
---|
5029 | // just a module m > 1 |
---|
5030 | else |
---|
5031 | { |
---|
5032 | ringtype = 2; |
---|
5033 | ch = mpz_get_ui(modBase); |
---|
5034 | } |
---|
5035 | } |
---|
5036 | #endif |
---|
5037 | else |
---|
5038 | { |
---|
5039 | Werror("Wrong ground field specification"); |
---|
5040 | goto rInitError; |
---|
5041 | } |
---|
5042 | pn=pn->next; |
---|
5043 | |
---|
5044 | int l, last; |
---|
5045 | sleftv * sl; |
---|
5046 | /*every entry in the new ring is initialized to 0*/ |
---|
5047 | |
---|
5048 | /* characteristic -----------------------------------------------*/ |
---|
5049 | /* input: 0 ch=0 : Q parameter=NULL ffChar=FALSE float_len |
---|
5050 | * 0 1 : Q(a,...) *names FALSE |
---|
5051 | * 0 -1 : R NULL FALSE 0 |
---|
5052 | * 0 -1 : R NULL FALSE prec. >6 |
---|
5053 | * 0 -1 : C *names FALSE prec. 0..? |
---|
5054 | * p p : Fp NULL FALSE |
---|
5055 | * p -p : Fp(a) *names FALSE |
---|
5056 | * q q : GF(q=p^n) *names TRUE |
---|
5057 | */ |
---|
5058 | if ((ch!=-1) |
---|
5059 | #ifdef HAVE_RINGS |
---|
5060 | && (ringtype == 0) |
---|
5061 | #endif |
---|
5062 | ) |
---|
5063 | { |
---|
5064 | int l = 0; |
---|
5065 | |
---|
5066 | if (((ch!=0) && (ch<2)) |
---|
5067 | #ifndef NV_OPS |
---|
5068 | || (ch > 32003) |
---|
5069 | #endif |
---|
5070 | ) |
---|
5071 | { |
---|
5072 | Warn("%d is invalid characteristic of ground field. 32003 is used.", ch); |
---|
5073 | ch=32003; |
---|
5074 | } |
---|
5075 | // load fftable, if necessary |
---|
5076 | if (pn!=NULL) |
---|
5077 | { |
---|
5078 | while ((ch!=fftable[l]) && (fftable[l])) l++; |
---|
5079 | if (fftable[l]==0) ch = IsPrime(ch); |
---|
5080 | else |
---|
5081 | { |
---|
5082 | char *m[1]={(char *)sNoName}; |
---|
5083 | nfSetChar(ch,m); |
---|
5084 | if (errorreported) goto rInitError; |
---|
5085 | else ffChar=TRUE; |
---|
5086 | } |
---|
5087 | } |
---|
5088 | else |
---|
5089 | { |
---|
5090 | ch = IsPrime(ch); |
---|
5091 | } |
---|
5092 | } |
---|
5093 | // allocated ring and set ch |
---|
5094 | R = (ring) omAlloc0Bin(sip_sring_bin); |
---|
5095 | R->cf->ch = ch; |
---|
5096 | #ifdef HAVE_RINGS |
---|
5097 | R->cf->ringtype = ringtype; |
---|
5098 | R->cf->modBase = modBase; |
---|
5099 | R->cf->modExponent = modExponent; |
---|
5100 | #endif |
---|
5101 | if (ch == -1) |
---|
5102 | { |
---|
5103 | R->float_len= si_min(float_len,32767); |
---|
5104 | R->float_len2= si_min(float_len2,32767); |
---|
5105 | } |
---|
5106 | |
---|
5107 | /* parameter -------------------------------------------------------*/ |
---|
5108 | if (pn!=NULL) |
---|
5109 | { |
---|
5110 | R->cf->extRing->N=pn->listLength(); |
---|
5111 | //if ((ffChar|| (ch == 1)) && (rPar(R) > 1)) |
---|
5112 | if ((rPar(R) > 1) && (ffChar || (ch == -1))) |
---|
5113 | { |
---|
5114 | WerrorS("too many parameters"); |
---|
5115 | goto rInitError; |
---|
5116 | } |
---|
5117 | R->cf->extRing->names=(char**)omAlloc0(rPar(R)*sizeof(char_ptr)); |
---|
5118 | if (rSleftvList2StringArray(pn, R->cf->extRing->names)) |
---|
5119 | { |
---|
5120 | WerrorS("parameter expected"); |
---|
5121 | goto rInitError; |
---|
5122 | } |
---|
5123 | if (ch>1 && !ffChar) R->cf->ch=-ch; |
---|
5124 | else if (ch==0) R->cf->ch=1; |
---|
5125 | } |
---|
5126 | else if (ffChar) |
---|
5127 | { |
---|
5128 | WerrorS("need one parameter"); |
---|
5129 | goto rInitError; |
---|
5130 | } |
---|
5131 | /* post-processing of field description */ |
---|
5132 | // we have short reals, but no short complex |
---|
5133 | if ((R->cf->ch == - 1) |
---|
5134 | && (rParameter(R) !=NULL) |
---|
5135 | && (R->float_len < SHORT_REAL_LENGTH)) |
---|
5136 | { |
---|
5137 | R->float_len = SHORT_REAL_LENGTH; |
---|
5138 | R->float_len2 = SHORT_REAL_LENGTH; |
---|
5139 | } |
---|
5140 | |
---|
5141 | /* names and number of variables-------------------------------------*/ |
---|
5142 | { |
---|
5143 | int l=rv->listLength(); |
---|
5144 | |
---|
5145 | if (l>MAX_SHORT) |
---|
5146 | { |
---|
5147 | Werror("too many ring variables(%d), max is %d",l,MAX_SHORT); |
---|
5148 | goto rInitError; |
---|
5149 | } |
---|
5150 | R->N = l; /*rv->listLength();*/ |
---|
5151 | } |
---|
5152 | R->names = (char **)omAlloc0(R->N * sizeof(char_ptr)); |
---|
5153 | if (rSleftvList2StringArray(rv, R->names)) |
---|
5154 | { |
---|
5155 | WerrorS("name of ring variable expected"); |
---|
5156 | goto rInitError; |
---|
5157 | } |
---|
5158 | |
---|
5159 | /* check names and parameters for conflicts ------------------------- */ |
---|
5160 | rRenameVars(R); // conflicting variables will be renamed |
---|
5161 | /* ordering -------------------------------------------------------------*/ |
---|
5162 | if (rSleftvOrdering2Ordering(ord, R)) |
---|
5163 | goto rInitError; |
---|
5164 | |
---|
5165 | // Complete the initialization |
---|
5166 | if (rComplete(R,1)) |
---|
5167 | goto rInitError; |
---|
5168 | |
---|
5169 | #ifdef HABE_RINGS |
---|
5170 | // currently, coefficients which are ring elements require a global ordering: |
---|
5171 | if (rField_is_Ring(R) && (R->pOrdSgn==-1)) |
---|
5172 | { |
---|
5173 | WerrorS("global ordering required for these coefficients"); |
---|
5174 | goto rInitError; |
---|
5175 | } |
---|
5176 | #endif |
---|
5177 | |
---|
5178 | rTest(R); |
---|
5179 | |
---|
5180 | // try to enter the ring into the name list |
---|
5181 | // need to clean up sleftv here, before this ring can be set to |
---|
5182 | // new currRing or currRing can be killed beacuse new ring has |
---|
5183 | // same name |
---|
5184 | if (pn != NULL) pn->CleanUp(); |
---|
5185 | if (rv != NULL) rv->CleanUp(); |
---|
5186 | if (ord != NULL) ord->CleanUp(); |
---|
5187 | //if ((tmp = enterid(s, myynest, RING_CMD, &IDROOT))==NULL) |
---|
5188 | // goto rInitError; |
---|
5189 | |
---|
5190 | //memcpy(IDRING(tmp),R,sizeof(*R)); |
---|
5191 | // set current ring |
---|
5192 | //omFreeBin(R, ip_sring_bin); |
---|
5193 | //return tmp; |
---|
5194 | return R; |
---|
5195 | |
---|
5196 | // error case: |
---|
5197 | rInitError: |
---|
5198 | if (R != NULL) rDelete(R); |
---|
5199 | if (pn != NULL) pn->CleanUp(); |
---|
5200 | if (rv != NULL) rv->CleanUp(); |
---|
5201 | if (ord != NULL) ord->CleanUp(); |
---|
5202 | return NULL; |
---|
5203 | } |
---|
5204 | |
---|
5205 | ring rSubring(ring org_ring, sleftv* rv) |
---|
5206 | { |
---|
5207 | ring R = rCopy0(org_ring); |
---|
5208 | int *perm=(int *)omAlloc0((org_ring->N+1)*sizeof(int)); |
---|
5209 | int last = 0, o=0, n = rBlocks(org_ring), i=0, typ = 1, j; |
---|
5210 | |
---|
5211 | /* names and number of variables-------------------------------------*/ |
---|
5212 | { |
---|
5213 | int l=rv->listLength(); |
---|
5214 | if (l>MAX_SHORT) |
---|
5215 | { |
---|
5216 | Werror("too many ring variables(%d), max is %d",l,MAX_SHORT); |
---|
5217 | goto rInitError; |
---|
5218 | } |
---|
5219 | R->N = l; /*rv->listLength();*/ |
---|
5220 | } |
---|
5221 | omFree(R->names); |
---|
5222 | R->names = (char **)omAlloc0(R->N * sizeof(char_ptr)); |
---|
5223 | if (rSleftvList2StringArray(rv, R->names)) |
---|
5224 | { |
---|
5225 | WerrorS("name of ring variable expected"); |
---|
5226 | goto rInitError; |
---|
5227 | } |
---|
5228 | |
---|
5229 | /* check names for subring in org_ring ------------------------- */ |
---|
5230 | { |
---|
5231 | i=0; |
---|
5232 | |
---|
5233 | for(j=0;j<R->N;j++) |
---|
5234 | { |
---|
5235 | for(;i<org_ring->N;i++) |
---|
5236 | { |
---|
5237 | if (strcmp(org_ring->names[i],R->names[j])==0) |
---|
5238 | { |
---|
5239 | perm[i+1]=j+1; |
---|
5240 | break; |
---|
5241 | } |
---|
5242 | } |
---|
5243 | if (i>org_ring->N) |
---|
5244 | { |
---|
5245 | Werror("variable %d (%s) not in basering",j+1,R->names[j]); |
---|
5246 | break; |
---|
5247 | } |
---|
5248 | } |
---|
5249 | } |
---|
5250 | //Print("perm="); |
---|
5251 | //for(i=1;i<org_ring->N;i++) Print("v%d -> v%d\n",i,perm[i]); |
---|
5252 | /* ordering -------------------------------------------------------------*/ |
---|
5253 | |
---|
5254 | for(i=0;i<n;i++) |
---|
5255 | { |
---|
5256 | int min_var=-1; |
---|
5257 | int max_var=-1; |
---|
5258 | for(j=R->block0[i];j<=R->block1[i];j++) |
---|
5259 | { |
---|
5260 | if (perm[j]>0) |
---|
5261 | { |
---|
5262 | if (min_var==-1) min_var=perm[j]; |
---|
5263 | max_var=perm[j]; |
---|
5264 | } |
---|
5265 | } |
---|
5266 | if (min_var!=-1) |
---|
5267 | { |
---|
5268 | //Print("block %d: old %d..%d, now:%d..%d\n", |
---|
5269 | // i,R->block0[i],R->block1[i],min_var,max_var); |
---|
5270 | R->block0[i]=min_var; |
---|
5271 | R->block1[i]=max_var; |
---|
5272 | if (R->wvhdl[i]!=NULL) |
---|
5273 | { |
---|
5274 | omFree(R->wvhdl[i]); |
---|
5275 | R->wvhdl[i]=(int*)omAlloc0((max_var-min_var+1)*sizeof(int)); |
---|
5276 | for(j=org_ring->block0[i];j<=org_ring->block1[i];j++) |
---|
5277 | { |
---|
5278 | if (perm[j]>0) |
---|
5279 | { |
---|
5280 | R->wvhdl[i][perm[j]-R->block0[i]]= |
---|
5281 | org_ring->wvhdl[i][j-org_ring->block0[i]]; |
---|
5282 | //Print("w%d=%d (orig_w%d)\n",perm[j],R->wvhdl[i][perm[j]-R->block0[i]],j); |
---|
5283 | } |
---|
5284 | } |
---|
5285 | } |
---|
5286 | } |
---|
5287 | else |
---|
5288 | { |
---|
5289 | if(R->block0[i]>0) |
---|
5290 | { |
---|
5291 | //Print("skip block %d\n",i); |
---|
5292 | R->order[i]=ringorder_unspec; |
---|
5293 | if (R->wvhdl[i] !=NULL) omFree(R->wvhdl[i]); |
---|
5294 | R->wvhdl[i]=NULL; |
---|
5295 | } |
---|
5296 | //else Print("keep block %d\n",i); |
---|
5297 | } |
---|
5298 | } |
---|
5299 | i=n-1; |
---|
5300 | while(i>0) |
---|
5301 | { |
---|
5302 | // removed unneded blocks |
---|
5303 | if(R->order[i-1]==ringorder_unspec) |
---|
5304 | { |
---|
5305 | for(j=i;j<=n;j++) |
---|
5306 | { |
---|
5307 | R->order[j-1]=R->order[j]; |
---|
5308 | R->block0[j-1]=R->block0[j]; |
---|
5309 | R->block1[j-1]=R->block1[j]; |
---|
5310 | if (R->wvhdl[j-1] !=NULL) omFree(R->wvhdl[j-1]); |
---|
5311 | R->wvhdl[j-1]=R->wvhdl[j]; |
---|
5312 | } |
---|
5313 | R->order[n]=ringorder_unspec; |
---|
5314 | n--; |
---|
5315 | } |
---|
5316 | i--; |
---|
5317 | } |
---|
5318 | n=rBlocks(org_ring)-1; |
---|
5319 | while (R->order[n]==0) n--; |
---|
5320 | while (R->order[n]==ringorder_unspec) n--; |
---|
5321 | if ((R->order[n]==ringorder_c) || (R->order[n]==ringorder_C)) n--; |
---|
5322 | if (R->block1[n] != R->N) |
---|
5323 | { |
---|
5324 | if (((R->order[n]==ringorder_dp) || |
---|
5325 | (R->order[n]==ringorder_ds) || |
---|
5326 | (R->order[n]==ringorder_Dp) || |
---|
5327 | (R->order[n]==ringorder_Ds) || |
---|
5328 | (R->order[n]==ringorder_rp) || |
---|
5329 | (R->order[n]==ringorder_rs) || |
---|
5330 | (R->order[n]==ringorder_lp) || |
---|
5331 | (R->order[n]==ringorder_ls)) |
---|
5332 | && |
---|
5333 | R->block0[n] <= R->N) |
---|
5334 | { |
---|
5335 | R->block1[n] = R->N; |
---|
5336 | } |
---|
5337 | else |
---|
5338 | { |
---|
5339 | Werror("mismatch of number of vars (%d) and ordering (%d vars) in block %d", |
---|
5340 | R->N,R->block1[n],n); |
---|
5341 | return NULL; |
---|
5342 | } |
---|
5343 | } |
---|
5344 | omFree(perm); |
---|
5345 | // find OrdSgn: |
---|
5346 | R->OrdSgn = org_ring->OrdSgn; // IMPROVE! |
---|
5347 | //for(i=1;i<=R->N;i++) |
---|
5348 | //{ if (weights[i]<0) { R->OrdSgn=-1;break; }} |
---|
5349 | //omFree(weights); |
---|
5350 | // Complete the initialization |
---|
5351 | if (rComplete(R,1)) |
---|
5352 | goto rInitError; |
---|
5353 | |
---|
5354 | rTest(R); |
---|
5355 | |
---|
5356 | if (rv != NULL) rv->CleanUp(); |
---|
5357 | |
---|
5358 | return R; |
---|
5359 | |
---|
5360 | // error case: |
---|
5361 | rInitError: |
---|
5362 | if (R != NULL) rDelete(R); |
---|
5363 | if (rv != NULL) rv->CleanUp(); |
---|
5364 | return NULL; |
---|
5365 | } |
---|
5366 | |
---|
5367 | void rKill(ring r) |
---|
5368 | { |
---|
5369 | if ((r->ref<=0)&&(r->order!=NULL)) |
---|
5370 | { |
---|
5371 | #ifdef RDEBUG |
---|
5372 | if (traceit &TRACE_SHOW_RINGS) Print("kill ring %lx\n",(long)r); |
---|
5373 | #endif |
---|
5374 | if (r->qideal!=NULL) |
---|
5375 | { |
---|
5376 | id_Delete(&r->qideal, r); |
---|
5377 | r->qideal = NULL; |
---|
5378 | } |
---|
5379 | int i=1; |
---|
5380 | int j; |
---|
5381 | int *pi=r->order; |
---|
5382 | #ifdef USE_IILOCALRING |
---|
5383 | for (j=0;j<iiRETURNEXPR_len;j++) |
---|
5384 | { |
---|
5385 | if (iiLocalRing[j]==r) |
---|
5386 | { |
---|
5387 | if (j<myynest) Warn("killing the basering for level %d",j); |
---|
5388 | iiLocalRing[j]=NULL; |
---|
5389 | } |
---|
5390 | } |
---|
5391 | #else /* USE_IILOCALRING */ |
---|
5392 | //#endif /* USE_IILOCALRING */ |
---|
5393 | { |
---|
5394 | proclevel * nshdl = procstack; |
---|
5395 | int lev=myynest-1; |
---|
5396 | |
---|
5397 | for(; nshdl != NULL; nshdl = nshdl->next) |
---|
5398 | { |
---|
5399 | if (nshdl->cRing==r) |
---|
5400 | { |
---|
5401 | Warn("killing the basering for level %d",lev); |
---|
5402 | nshdl->cRing=NULL; |
---|
5403 | nshdl->cRingHdl=NULL; |
---|
5404 | } |
---|
5405 | } |
---|
5406 | } |
---|
5407 | #endif /* USE_IILOCALRING */ |
---|
5408 | // any variables depending on r ? |
---|
5409 | while (r->idroot!=NULL) |
---|
5410 | { |
---|
5411 | killhdl2(r->idroot,&(r->idroot),r); |
---|
5412 | } |
---|
5413 | if (r==currRing) |
---|
5414 | { |
---|
5415 | // all dependend stuff is done, clean global vars: |
---|
5416 | if (r->qideal!=NULL) |
---|
5417 | { |
---|
5418 | currQuotient=NULL; |
---|
5419 | } |
---|
5420 | if (ppNoether!=NULL) pDelete(&ppNoether); |
---|
5421 | if (sLastPrinted.RingDependend()) |
---|
5422 | { |
---|
5423 | sLastPrinted.CleanUp(); |
---|
5424 | } |
---|
5425 | if ((myynest>0) && (iiRETURNEXPR[myynest].RingDependend())) |
---|
5426 | { |
---|
5427 | WerrorS("return value depends on local ring variable (export missing ?)"); |
---|
5428 | iiRETURNEXPR[myynest].CleanUp(); |
---|
5429 | } |
---|
5430 | currRing=NULL; |
---|
5431 | currRingHdl=NULL; |
---|
5432 | } |
---|
5433 | |
---|
5434 | /* nKillChar(r); will be called from inside of rDelete */ |
---|
5435 | rDelete(r); |
---|
5436 | return; |
---|
5437 | } |
---|
5438 | r->ref--; |
---|
5439 | } |
---|
5440 | |
---|
5441 | void rKill(idhdl h) |
---|
5442 | { |
---|
5443 | ring r = IDRING(h); |
---|
5444 | int ref=0; |
---|
5445 | if (r!=NULL) |
---|
5446 | { |
---|
5447 | ref=r->ref; |
---|
5448 | rKill(r); |
---|
5449 | } |
---|
5450 | if (h==currRingHdl) |
---|
5451 | { |
---|
5452 | if (ref<=0) { currRing=NULL; currRingHdl=NULL;} |
---|
5453 | else |
---|
5454 | { |
---|
5455 | currRingHdl=rFindHdl(r,currRingHdl,NULL); |
---|
5456 | } |
---|
5457 | } |
---|
5458 | } |
---|
5459 | |
---|
5460 | idhdl rSimpleFindHdl(ring r, idhdl root, idhdl n) |
---|
5461 | { |
---|
5462 | //idhdl next_best=NULL; |
---|
5463 | idhdl h=root; |
---|
5464 | while (h!=NULL) |
---|
5465 | { |
---|
5466 | if (((IDTYP(h)==RING_CMD)||(IDTYP(h)==QRING_CMD)) |
---|
5467 | && (h!=n) |
---|
5468 | && (IDRING(h)==r) |
---|
5469 | ) |
---|
5470 | { |
---|
5471 | // if (IDLEV(h)==myynest) |
---|
5472 | // return h; |
---|
5473 | // if ((IDLEV(h)==0) || (next_best==NULL)) |
---|
5474 | // next_best=h; |
---|
5475 | // else if (IDLEV(next_best)<IDLEV(h)) |
---|
5476 | // next_best=h; |
---|
5477 | return h; |
---|
5478 | } |
---|
5479 | h=IDNEXT(h); |
---|
5480 | } |
---|
5481 | //return next_best; |
---|
5482 | return NULL; |
---|
5483 | } |
---|
5484 | |
---|
5485 | extern BOOLEAN jjPROC(leftv res, leftv u, leftv v); |
---|
5486 | ideal kGroebner(ideal F, ideal Q) |
---|
5487 | { |
---|
5488 | //test|=Sy_bit(OPT_PROT); |
---|
5489 | idhdl save_ringhdl=currRingHdl; |
---|
5490 | ideal resid; |
---|
5491 | idhdl new_ring=NULL; |
---|
5492 | if ((currRingHdl==NULL) || (IDRING(currRingHdl)!=currRing)) |
---|
5493 | { |
---|
5494 | currRingHdl=enterid(omStrDup(" GROEBNERring"),0,RING_CMD,&IDROOT,FALSE); |
---|
5495 | new_ring=currRingHdl; |
---|
5496 | IDRING(currRingHdl)=currRing; |
---|
5497 | } |
---|
5498 | sleftv v; memset(&v,0,sizeof(v)); v.rtyp=IDEAL_CMD; v.data=(char *) F; |
---|
5499 | idhdl h=ggetid("groebner"); |
---|
5500 | sleftv u; memset(&u,0,sizeof(u)); u.rtyp=IDHDL; u.data=(char *) h; |
---|
5501 | u.name=IDID(h); |
---|
5502 | |
---|
5503 | sleftv res; memset(&res,0,sizeof(res)); |
---|
5504 | if(jjPROC(&res,&u,&v)) |
---|
5505 | { |
---|
5506 | resid=kStd(F,Q,testHomog,NULL); |
---|
5507 | } |
---|
5508 | else |
---|
5509 | { |
---|
5510 | //printf("typ:%d\n",res.rtyp); |
---|
5511 | resid=(ideal)(res.data); |
---|
5512 | } |
---|
5513 | // cleanup GROEBNERring, save_ringhdl, u,v,(res ) |
---|
5514 | if (new_ring!=NULL) |
---|
5515 | { |
---|
5516 | idhdl h=IDROOT; |
---|
5517 | if (h==new_ring) IDROOT=h->next; |
---|
5518 | else |
---|
5519 | { |
---|
5520 | while ((h!=NULL) &&(h->next!=new_ring)) h=h->next; |
---|
5521 | if (h!=NULL) h->next=h->next->next; |
---|
5522 | } |
---|
5523 | if (h!=NULL) omFreeSize(h,sizeof(*h)); |
---|
5524 | } |
---|
5525 | currRingHdl=save_ringhdl; |
---|
5526 | u.CleanUp(); |
---|
5527 | v.CleanUp(); |
---|
5528 | return resid; |
---|
5529 | } |
---|
5530 | |
---|
5531 | static void jjINT_S_TO_ID(int n,int *e, leftv res) |
---|
5532 | { |
---|
5533 | if (n==0) n=1; |
---|
5534 | ideal l=idInit(n,1); |
---|
5535 | int i; |
---|
5536 | poly p; |
---|
5537 | for(i=rVar(currRing);i>0;i--) |
---|
5538 | { |
---|
5539 | if (e[i]>0) |
---|
5540 | { |
---|
5541 | n--; |
---|
5542 | p=pOne(); |
---|
5543 | pSetExp(p,i,1); |
---|
5544 | pSetm(p); |
---|
5545 | l->m[n]=p; |
---|
5546 | if (n==0) break; |
---|
5547 | } |
---|
5548 | } |
---|
5549 | res->data=(char*)l; |
---|
5550 | setFlag(res,FLAG_STD); |
---|
5551 | omFreeSize((ADDRESS)e,(rVar(currRing)+1)*sizeof(int)); |
---|
5552 | } |
---|
5553 | BOOLEAN jjVARIABLES_P(leftv res, leftv u) |
---|
5554 | { |
---|
5555 | int *e=(int *)omAlloc0((rVar(currRing)+1)*sizeof(int)); |
---|
5556 | int n=pGetVariables((poly)u->Data(),e); |
---|
5557 | jjINT_S_TO_ID(n,e,res); |
---|
5558 | return FALSE; |
---|
5559 | } |
---|
5560 | |
---|
5561 | BOOLEAN jjVARIABLES_ID(leftv res, leftv u) |
---|
5562 | { |
---|
5563 | int *e=(int *)omAlloc0((rVar(currRing)+1)*sizeof(int)); |
---|
5564 | ideal I=(ideal)u->Data(); |
---|
5565 | int i; |
---|
5566 | int n=0; |
---|
5567 | for(i=I->nrows*I->ncols-1;i>=0;i--) |
---|
5568 | { |
---|
5569 | n=pGetVariables(I->m[i],e); |
---|
5570 | } |
---|
5571 | jjINT_S_TO_ID(n,e,res); |
---|
5572 | return FALSE; |
---|
5573 | } |
---|