1 | // as this file provides only example code, |
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2 | // no trace of it must appear in Singular and Singularg |
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3 | // |
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4 | #if 0 |
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5 | // |
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6 | #include "config.h" |
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7 | #include <kernel/mod2.h> |
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8 | #include <Singular/ipid.h> |
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9 | #include <Singular/blackbox.h> |
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10 | #include <omalloc/omalloc.h> |
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11 | #include <kernel/febase.h> |
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12 | #include <kernel/longrat.h> |
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13 | #include <Singular/subexpr.h> |
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14 | #include <Singular/bigintm.h> |
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15 | |
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16 | |
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17 | static char * bigintm_String(blackbox *b, void *d) |
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18 | { if (d==NULL) return omStrDup("oo"); |
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19 | else |
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20 | { |
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21 | StringSetS(""); |
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22 | number n=(number)d; nlWrite(n,NULL); d=(void*)n; |
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23 | return omStrDup(StringAppendS("")); |
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24 | } |
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25 | } |
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26 | static void * bigintm_Copy(blackbox*b, void *d) |
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27 | { number n=(number)d; return nlCopy(n); } |
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28 | |
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29 | static BOOLEAN bigintm_Assign(leftv l, leftv r) |
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30 | { |
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31 | blackbox *ll=getBlackboxStuff(l->Typ()); |
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32 | |
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33 | if (r->Typ()>MAX_TOK) |
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34 | { |
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35 | if (l->Typ() == r->Typ()) |
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36 | { |
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37 | blackbox *rr=getBlackboxStuff(r->Typ()); |
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38 | |
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39 | if (l->Data()!=NULL) { number n1=(number)l->Data(); nlDelete(&n1,NULL); } |
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40 | number n2=(number)r->CopyD(); |
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41 | if (l->rtyp==IDHDL) |
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42 | { |
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43 | IDDATA((idhdl)l->data)=(char *)n2; |
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44 | } |
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45 | else |
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46 | { |
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47 | l->data=(void *)n2; |
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48 | } |
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49 | return FALSE; |
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50 | } |
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51 | else |
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52 | { |
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53 | Werror("bigintm_Assign: assign %s (%d) = %s (%d)", |
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54 | getBlackboxName(l->Typ()), l->Typ(), |
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55 | getBlackboxName(r->Typ()), r->Typ()); |
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56 | return TRUE; |
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57 | } |
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58 | } |
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59 | else if (r->Typ()==INT_CMD) |
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60 | { |
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61 | if (l->Data()!=NULL) { number n1=(number)l->Data(); nlDelete(&n1,NULL); } |
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62 | number n2=nlInit((int)(long)r->Data(),NULL); |
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63 | if (l->rtyp==IDHDL) |
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64 | { |
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65 | IDDATA((idhdl)l->data)=(char *)n2; |
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66 | } |
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67 | else |
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68 | { |
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69 | l->data=(void *)n2; |
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70 | } |
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71 | return FALSE; |
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72 | } |
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73 | else |
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74 | Werror("assign %d = %d",l->Typ(),r->Typ()); |
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75 | return TRUE; |
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76 | } |
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77 | static BOOLEAN bigintm_OpM(int op, leftv res, leftv args); |
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78 | |
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79 | |
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80 | static BOOLEAN bigintm_Op2(int op, leftv res, leftv a1, leftv a2) |
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81 | { |
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82 | // interpreter: a1 is ist bigintm |
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83 | |
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84 | blackbox *a=getBlackboxStuff(a1->Typ()); |
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85 | number n1=(number)a1->Data(); |
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86 | switch(op) |
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87 | { |
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88 | case '+': |
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89 | { |
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90 | if (a2->Typ()==INT_CMD) |
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91 | { |
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92 | number n2=nlInit((int)(long)a2->Data(),NULL); |
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93 | number n=nlAdd(n1,n2); |
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94 | res->data=(void *)n; |
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95 | res->rtyp=a1->Typ(); |
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96 | return FALSE; |
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97 | } |
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98 | else if (a2->Typ()==a1->Typ()) |
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99 | { |
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100 | number n2=(number)a2->Data(); |
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101 | number n=nlAdd(n1,n2); |
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102 | res->data=(void *)n; |
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103 | res->rtyp=a1->Typ(); |
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104 | return FALSE; |
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105 | } |
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106 | return TRUE; |
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107 | } |
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108 | default: |
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109 | return blackboxDefaultOp2(op,res,a1,a2); |
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110 | } |
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111 | return blackboxDefaultOp2(op,res,a1,a2); |
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112 | } |
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113 | // BOOLEAN opM(int op, leftv res, leftv args) |
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114 | static BOOLEAN bigintm_OpM(int op, leftv res, leftv args) |
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115 | { |
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116 | // interpreter: args->1. arg is ist bigintm |
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117 | blackbox *a=getBlackboxStuff(args->Typ()); |
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118 | switch(op) |
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119 | { |
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120 | case STRING_CMD: |
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121 | { |
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122 | res->data=(void *)a->blackbox_String(a,args->Data()); |
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123 | res->rtyp=STRING_CMD; |
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124 | return FALSE; |
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125 | } |
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126 | default: |
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127 | return blackboxDefaultOpM(op,res,args); |
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128 | break; |
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129 | } |
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130 | return blackboxDefaultOpM(op,res,args); |
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131 | } |
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132 | static void bigintm_destroy(blackbox *b, void *d) |
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133 | { |
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134 | if (d!=NULL) |
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135 | { |
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136 | number n=(number)d; |
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137 | nlDelete(&n,NULL); |
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138 | } |
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139 | } |
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140 | |
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141 | |
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142 | BOOLEAN bigintm_setup() |
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143 | { |
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144 | // it is not very usefull to call this setup routine twice, |
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145 | // but (as this is an example) it is possible. |
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146 | // Other blackbox type really require multiple setup calls |
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147 | // (with different names). |
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148 | // Also the format of this setup routine is not fixed, |
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149 | // it may take additional parameters, it may return a value or not |
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150 | // - it really depends. |
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151 | |
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152 | blackbox *b=(blackbox*)omAlloc0(sizeof(blackbox)); |
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153 | // all undefined entries will be set to default in setBlackboxStuff |
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154 | // the default Print is quite usefule, |
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155 | // all other are simply error messages |
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156 | b->blackbox_destroy=bigintm_destroy; |
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157 | b->blackbox_String=bigintm_String; |
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158 | //b->blackbox_Print=blackbox_default_Print; |
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159 | //b->blackbox_Init=blackbox_default_Init; |
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160 | b->blackbox_Copy=bigintm_Copy; |
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161 | b->blackbox_Assign=bigintm_Assign; |
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162 | //b->blackbox_Op1=blackboxDefaultOp1; |
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163 | b->blackbox_Op2=bigintm_Op2; |
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164 | //b->blackbox_Op3=blackbox_default_Op3; |
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165 | b->blackbox_OpM=bigintm_OpM; |
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166 | int rt=setBlackboxStuff(b,"bigintm"); |
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167 | |
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168 | Print("bigintm_setup: create type %d (%s)\n",rt, getBlackboxName(rt)); |
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169 | |
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170 | return FALSE; // ok, TRUE = error!: this example never fails |
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171 | } |
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172 | |
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173 | #endif |
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