[0e1846] | 1 | /**************************************** |
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| 2 | * Computer Algebra System SINGULAR * |
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| 3 | ****************************************/ |
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[341696] | 4 | /* $Id$ */ |
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[0e1846] | 5 | /* |
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| 6 | * ABSTRACT: automatic type conversions |
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| 7 | */ |
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| 8 | |
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[599326] | 9 | #include <Singular/mod2.h> |
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| 10 | #include <Singular/tok.h> |
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| 11 | #include <Singular/ipid.h> |
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| 12 | #include <kernel/intvec.h> |
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| 13 | #include <omalloc.h> |
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| 14 | #include <kernel/febase.h> |
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| 15 | #include <kernel/polys.h> |
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| 16 | #include <kernel/ideals.h> |
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| 17 | #include <Singular/subexpr.h> |
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| 18 | #include <kernel/numbers.h> |
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| 19 | #include <kernel/modulop.h> |
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| 20 | #include <kernel/longrat.h> |
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| 21 | #include <kernel/longalg.h> |
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[c81a40] | 22 | #ifdef HAVE_RINGS |
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[599326] | 23 | #include <kernel/rmodulon.h> |
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| 24 | #include <kernel/rmodulo2m.h> |
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| 25 | #include <kernel/rintegers.h> |
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[c81a40] | 26 | #endif |
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[599326] | 27 | #include <kernel/matpol.h> |
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| 28 | #include <Singular/silink.h> |
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| 29 | #include <kernel/syz.h> |
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| 30 | #include <Singular/attrib.h> |
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| 31 | #include <kernel/ring.h> |
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| 32 | #include <Singular/ipconv.h> |
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[0e1846] | 33 | |
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| 34 | typedef void * (*iiConvertProc)(void * data); |
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[f43a74] | 35 | typedef void (*iiConvertProcL)(leftv out,leftv in); |
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[0e1846] | 36 | struct sConvertTypes |
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| 37 | { |
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| 38 | int i_typ; |
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| 39 | int o_typ; |
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| 40 | iiConvertProc p; |
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[f43a74] | 41 | iiConvertProcL pl; |
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[0e1846] | 42 | }; |
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| 43 | |
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[befd6b5] | 44 | // all of these static conversion routines work destructive on their input |
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| 45 | |
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[0e1846] | 46 | static void * iiI2P(void *data) |
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| 47 | { |
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[7447d8] | 48 | poly p=pISet((int)(long)data); |
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[0e1846] | 49 | return (void *)p; |
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| 50 | } |
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| 51 | |
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[db5523] | 52 | static void * iiBI2P(void *data) |
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| 53 | { |
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[8bd247] | 54 | number n=nInit_bigint((number)data); |
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[db5523] | 55 | nlDelete((number *)&data,NULL); |
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| 56 | poly p=pNSet(n); |
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| 57 | return (void *)p; |
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| 58 | } |
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| 59 | |
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[0e1846] | 60 | static void * iiI2V(void *data) |
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| 61 | { |
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[7447d8] | 62 | poly p=pISet((int)(long)data); |
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[0e1846] | 63 | if (p!=NULL) pSetComp(p,1); |
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| 64 | return (void *)p; |
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| 65 | } |
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| 66 | |
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[db5523] | 67 | static void * iiBI2V(void *data) |
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| 68 | { |
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[8bd247] | 69 | number n=nInit_bigint((number)data); |
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[db5523] | 70 | nlDelete((number *)&data,NULL); |
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| 71 | poly p=pNSet(n); |
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| 72 | if (p!=NULL) pSetComp(p,1); |
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| 73 | return (void *)p; |
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| 74 | } |
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| 75 | |
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[0e1846] | 76 | static void * iiI2Id(void *data) |
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| 77 | { |
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| 78 | ideal I=idInit(1,1); |
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[7447d8] | 79 | I->m[0]=pISet((int)(long)data); |
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[0e1846] | 80 | return (void *)I; |
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| 81 | } |
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| 82 | |
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[db5523] | 83 | static void * iiBI2Id(void *data) |
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| 84 | { |
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| 85 | ideal I=idInit(1,1); |
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[8bd247] | 86 | number n=nInit_bigint((number)data); |
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[db5523] | 87 | nlDelete((number *)&data,NULL); |
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| 88 | poly p=pNSet(n); |
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| 89 | I->m[0]=p; |
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| 90 | return (void *)I; |
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| 91 | } |
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[0e1846] | 92 | static void * iiP2V(void *data) |
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| 93 | { |
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| 94 | poly p=(poly)data; |
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| 95 | if (p!=NULL) pSetCompP(p,1); |
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| 96 | return (void *)p; |
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| 97 | } |
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| 98 | |
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| 99 | static void * iiP2Id(void *data) |
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| 100 | { |
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| 101 | ideal I=idInit(1,1); |
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| 102 | |
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| 103 | I->m[0]=(poly)data; |
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| 104 | if (data!=NULL) |
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| 105 | { |
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| 106 | poly p=(poly)data; |
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| 107 | if (pGetComp(p)!=0) I->rank=pMaxComp(p); |
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| 108 | } |
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| 109 | return (void *)I; |
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| 110 | } |
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| 111 | |
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| 112 | static void * iiV2Ma(void *data) |
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| 113 | { |
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| 114 | matrix m=(matrix)idVec2Ideal((poly)data); |
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| 115 | int h=MATCOLS(m); |
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| 116 | MATCOLS(m)=MATROWS(m); |
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| 117 | MATROWS(m)=h; |
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| 118 | m->rank=h; |
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[befd6b5] | 119 | pDelete((poly *)&data); |
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[0e1846] | 120 | return (void *)m; |
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| 121 | } |
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[6fc941] | 122 | |
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| 123 | static void * iiN2P(void *data); |
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[0e1846] | 124 | |
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| 125 | static void * iiDummy(void *data) |
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| 126 | { |
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| 127 | return data; |
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| 128 | } |
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| 129 | |
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| 130 | static void * iiMo2Ma(void *data) |
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| 131 | { |
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| 132 | void *res=idModule2Matrix((ideal)data); |
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| 133 | return res; |
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| 134 | } |
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| 135 | |
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| 136 | static void * iiMa2Mo(void *data) |
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| 137 | { |
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| 138 | void *res=idMatrix2Module((matrix)data); |
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| 139 | return res; |
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| 140 | } |
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| 141 | |
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| 142 | static void * iiI2Iv(void *data) |
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| 143 | { |
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[7447d8] | 144 | int s=(int)(long)data; |
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| 145 | intvec *iv=new intvec(s,s); |
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[0e1846] | 146 | return (void *)iv; |
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| 147 | } |
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| 148 | |
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| 149 | static void * iiI2N(void *data) |
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| 150 | { |
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[7447d8] | 151 | number n=nInit((int)(long)data); |
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[0e1846] | 152 | return (void *)n; |
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| 153 | } |
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| 154 | |
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[6fc941] | 155 | static void * iiI2BI(void *data) |
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| 156 | { |
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[8391d8] | 157 | number n=nlInit((int)(long)data, NULL /*dummy for nlInit*/); |
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[6fc941] | 158 | return (void *)n; |
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| 159 | } |
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| 160 | |
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[cfce1fc] | 161 | static void * iiBI2N(void *data) |
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| 162 | { |
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| 163 | if (currRing==NULL) return NULL; |
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| 164 | // a bigint is really a number from char 0, with diffrent operations... |
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[41ea815] | 165 | return (void*)nInit_bigint((number)data); |
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[cfce1fc] | 166 | } |
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| 167 | |
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[0e1846] | 168 | static void * iiIm2Ma(void *data) |
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| 169 | { |
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| 170 | int i, j; |
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| 171 | intvec *iv = (intvec *)data; |
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| 172 | matrix m = mpNew(iv->rows(), iv->cols()); |
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| 173 | |
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| 174 | for (i=iv->rows(); i>0; i--) |
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| 175 | { |
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| 176 | for (j=iv->cols(); j>0; j--) |
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| 177 | { |
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| 178 | MATELEM(m, i, j) = pISet(IMATELEM(*iv, i, j)); |
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| 179 | } |
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| 180 | } |
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[befd6b5] | 181 | delete iv; |
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[0e1846] | 182 | return (void *)m; |
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| 183 | } |
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| 184 | |
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| 185 | static void * iiN2P(void *data) |
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| 186 | { |
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| 187 | poly p=NULL; |
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| 188 | if (!nIsZero((number)data)) |
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| 189 | { |
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[3eabdb] | 190 | p=pNSet((number)data); |
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[0e1846] | 191 | } |
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[805b06c] | 192 | //else |
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| 193 | //{ |
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| 194 | // nDelete((number *)&data); |
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[0d84792] | 195 | //} |
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[0e1846] | 196 | return (void *)p; |
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| 197 | } |
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| 198 | |
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| 199 | static void * iiN2Ma(void *data) |
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| 200 | { |
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| 201 | ideal I=idInit(1,1); |
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| 202 | if (!nIsZero((number)data)) |
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| 203 | { |
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[3eabdb] | 204 | poly p=pNSet((number)data); |
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[0e1846] | 205 | I->m[0]=p; |
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| 206 | } |
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[805b06c] | 207 | //else |
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| 208 | //{ |
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| 209 | // nDelete((number *)&data); |
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[0d84792] | 210 | //} |
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[0e1846] | 211 | return (void *)I; |
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| 212 | } |
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| 213 | |
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| 214 | static void * iiS2Link(void *data) |
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| 215 | { |
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[c232af] | 216 | si_link l=(si_link)omAlloc0Bin(ip_link_bin); |
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[0e1846] | 217 | slInit(l, (char *) data); |
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[c232af] | 218 | omFree((ADDRESS)data); |
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[0e1846] | 219 | return (void *)l; |
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| 220 | } |
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| 221 | |
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[f43a74] | 222 | /* |
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[dfc6b54] | 223 | static void * iiR2L(void * data) |
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| 224 | { |
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[3b2d29] | 225 | syStrategy tmp=(syStrategy)data; |
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[c89df6] | 226 | return (void *)syConvRes(tmp,TRUE); |
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[dfc6b54] | 227 | } |
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[f43a74] | 228 | */ |
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| 229 | static void iiR2L_l(leftv out, leftv in) |
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| 230 | { |
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| 231 | int add_row_shift = 0; |
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| 232 | intvec *weights=(intvec*)atGet(in,"isHomog",INTVEC_CMD); |
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| 233 | if (weights!=NULL) add_row_shift=weights->min_in(); |
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| 234 | |
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| 235 | syStrategy tmp=(syStrategy)in->CopyD(); |
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| 236 | out->data=(void *)syConvRes(tmp,TRUE,add_row_shift); |
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| 237 | } |
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[dfc6b54] | 238 | |
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[3ebd198] | 239 | static void * iiL2R(void * data) |
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| 240 | { |
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[b982ef] | 241 | return (void *)syConvList((lists)data,TRUE); |
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[3ebd198] | 242 | } |
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| 243 | |
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[0e1846] | 244 | // |
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[78c048b] | 245 | // automatic conversions: |
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[0e1846] | 246 | // |
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| 247 | struct sConvertTypes dConvertTypes[] = |
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| 248 | { |
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| 249 | // input type output type convert procedure |
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[6fc941] | 250 | // int -> bigint |
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| 251 | { INT_CMD, BIGINT_CMD, iiI2BI , NULL }, |
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[0e1846] | 252 | // int -> number |
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[f43a74] | 253 | { INT_CMD, NUMBER_CMD, iiI2N , NULL }, |
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[db5523] | 254 | { BIGINT_CMD, NUMBER_CMD, iiBI2N , NULL }, |
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[0e1846] | 255 | // int -> poly |
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[f43a74] | 256 | { INT_CMD, POLY_CMD, iiI2P , NULL }, |
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[db5523] | 257 | { BIGINT_CMD, POLY_CMD, iiBI2P , NULL }, |
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[0e1846] | 258 | // int -> vector |
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[f43a74] | 259 | { INT_CMD, VECTOR_CMD, iiI2V , NULL }, |
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[db5523] | 260 | { BIGINT_CMD, VECTOR_CMD, iiBI2V , NULL }, |
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[0e1846] | 261 | // int -> ideal |
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[f43a74] | 262 | { INT_CMD, IDEAL_CMD, iiI2Id , NULL }, |
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[db5523] | 263 | { BIGINT_CMD, IDEAL_CMD, iiBI2Id , NULL }, |
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[0e1846] | 264 | // int -> matrix |
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[f43a74] | 265 | { INT_CMD, MATRIX_CMD, iiI2Id , NULL }, |
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[db5523] | 266 | { BIGINT_CMD, MATRIX_CMD, iiBI2Id , NULL }, |
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[0e1846] | 267 | // int -> intvec |
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[f43a74] | 268 | { INT_CMD, INTVEC_CMD, iiI2Iv , NULL }, |
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[0e1846] | 269 | // intvec -> intmat |
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[f43a74] | 270 | { INTVEC_CMD, INTMAT_CMD, iiDummy, NULL }, |
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[0e1846] | 271 | // intvec -> matrix |
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[f43a74] | 272 | { INTVEC_CMD, MATRIX_CMD, iiIm2Ma , NULL }, |
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[0e1846] | 273 | // intmat -> matrix |
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[f43a74] | 274 | { INTMAT_CMD, MATRIX_CMD, iiIm2Ma , NULL }, |
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[0e1846] | 275 | // number -> poly |
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[f43a74] | 276 | { NUMBER_CMD, POLY_CMD, iiN2P , NULL }, |
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[0e1846] | 277 | // number -> matrix |
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[f43a74] | 278 | { NUMBER_CMD, MATRIX_CMD, iiN2Ma , NULL }, |
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[0e1846] | 279 | // number -> ideal |
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| 280 | // number -> vector |
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| 281 | // number -> module |
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| 282 | // poly -> number |
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| 283 | // poly -> ideal |
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[f43a74] | 284 | { POLY_CMD, IDEAL_CMD, iiP2Id , NULL }, |
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[0e1846] | 285 | // poly -> vector |
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[f43a74] | 286 | { POLY_CMD, VECTOR_CMD, iiP2V , NULL }, |
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[0e1846] | 287 | // poly -> matrix |
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[f43a74] | 288 | { POLY_CMD, MATRIX_CMD, iiP2Id , NULL }, |
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[0e1846] | 289 | // vector -> module |
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[f43a74] | 290 | { VECTOR_CMD, MODUL_CMD, iiP2Id , NULL }, |
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[0e1846] | 291 | // vector -> matrix |
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[f43a74] | 292 | { VECTOR_CMD, MATRIX_CMD, iiV2Ma , NULL }, |
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[0e1846] | 293 | // ideal -> module |
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[f43a74] | 294 | { IDEAL_CMD, MODUL_CMD, iiMa2Mo , NULL }, |
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[0e1846] | 295 | // ideal -> matrix |
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[f43a74] | 296 | { IDEAL_CMD, MATRIX_CMD, iiDummy , NULL }, |
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[0e1846] | 297 | // module -> matrix |
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[f43a74] | 298 | { MODUL_CMD, MATRIX_CMD, iiMo2Ma , NULL }, |
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[0e1846] | 299 | // matrix -> ideal |
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| 300 | // matrix -> module |
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[f43a74] | 301 | { MATRIX_CMD, MODUL_CMD, iiMa2Mo , NULL }, |
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[0e1846] | 302 | // intvec |
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| 303 | // link |
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[f43a74] | 304 | { STRING_CMD, LINK_CMD, iiS2Link , NULL }, |
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[5812c69] | 305 | // resolution -> list |
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[f43a74] | 306 | { RESOLUTION_CMD, LIST_CMD, NULL /*iiR2L*/ , iiR2L_l }, |
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[3ebd198] | 307 | // list -> resolution |
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[f43a74] | 308 | { LIST_CMD, RESOLUTION_CMD, iiL2R , NULL }, |
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[0e1846] | 309 | // end of list |
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[f43a74] | 310 | { 0, 0, NULL , NULL } |
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[0e1846] | 311 | }; |
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| 312 | |
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| 313 | /*2 |
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| 314 | * try to convert 'input' of type 'inputType' to 'output' of type 'outputType' |
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| 315 | * return FALSE on success |
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| 316 | */ |
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| 317 | BOOLEAN iiConvert (int inputType, int outputType, int index, leftv input, leftv output) |
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| 318 | { |
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| 319 | memset(output,0,sizeof(sleftv)); |
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| 320 | if ((inputType==outputType) |
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| 321 | || (outputType==DEF_CMD) |
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| 322 | || ((outputType==IDHDL)&&(input->rtyp==IDHDL))) |
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| 323 | { |
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| 324 | memcpy(output,input,sizeof(*output)); |
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| 325 | memset(input,0,sizeof(*input)); |
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| 326 | return FALSE; |
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| 327 | } |
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| 328 | else if (outputType==ANY_TYPE) |
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| 329 | { |
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| 330 | output->rtyp=ANY_TYPE; |
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| 331 | output->data=(char *)input->Typ(); |
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| 332 | /* the name of the object:*/ |
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| 333 | if (input->e==NULL) |
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| 334 | { |
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| 335 | if (input->rtyp==IDHDL) |
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| 336 | /* preserve name: copy it */ |
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[c232af] | 337 | output->name=omStrDup(IDID((idhdl)(input->data))); |
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[0e1846] | 338 | else if (input->name!=NULL) |
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| 339 | { |
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| 340 | output->name=input->name; |
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| 341 | input->name=NULL; |
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| 342 | } |
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| 343 | else if ((input->rtyp==POLY_CMD) && (input->name==NULL)) |
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| 344 | { |
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[0d84792] | 345 | if (input->data!=NULL) |
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[0e1846] | 346 | { |
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[0d84792] | 347 | int nr=pIsPurePower((poly)input->data); |
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| 348 | if (nr!=0) |
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[0e1846] | 349 | { |
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[0d84792] | 350 | if (pGetExp((poly)input->data,nr)==1) |
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| 351 | { |
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[c232af] | 352 | output->name=omStrDup(currRing->names[nr-1]); |
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[0d84792] | 353 | } |
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| 354 | else |
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| 355 | { |
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[85e68dd] | 356 | char *tmp=(char *)omAlloc(4); |
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| 357 | sprintf(tmp,"%c%d",*(currRing->names[nr-1]), |
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| 358 | (int)pGetExp((poly)input->data,nr)); |
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| 359 | output->name=tmp; |
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[0d84792] | 360 | } |
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[0e1846] | 361 | } |
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[0d84792] | 362 | else if(pIsConstant((poly)input->data)) |
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[0e1846] | 363 | { |
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[0d84792] | 364 | output->name=nName(pGetCoeff((poly)input->data)); |
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[0e1846] | 365 | } |
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| 366 | #ifdef TEST |
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[0d84792] | 367 | else |
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| 368 | { |
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| 369 | WerrorS("wrong name, should not happen"); |
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[c232af] | 370 | output->name=omStrDup("?"); |
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[0d84792] | 371 | } |
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[0e1846] | 372 | #endif |
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[0d84792] | 373 | } |
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[0e1846] | 374 | } |
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| 375 | else if ((input->rtyp==NUMBER_CMD) && (input->name==NULL)) |
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| 376 | { |
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| 377 | output->name=nName((number)input->data); |
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| 378 | } |
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| 379 | else |
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| 380 | { |
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| 381 | /* no need to preserve name: use it */ |
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| 382 | output->name=input->name; |
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| 383 | memset(input,0,sizeof(*input)); |
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| 384 | } |
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| 385 | } |
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| 386 | output->next=input->next; |
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| 387 | input->next=NULL; |
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| 388 | return FALSE; |
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| 389 | } |
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| 390 | if (index!=0) /* iiTestConvert does not returned 'failure' */ |
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| 391 | { |
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| 392 | index--; |
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| 393 | |
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| 394 | if((dConvertTypes[index].i_typ==inputType) |
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| 395 | &&(dConvertTypes[index].o_typ==outputType)) |
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| 396 | { |
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| 397 | if ((currRing==NULL) && (outputType>BEGIN_RING) && (outputType<END_RING)) |
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| 398 | return TRUE; |
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| 399 | output->rtyp=outputType; |
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[f43a74] | 400 | if (dConvertTypes[index].p!=NULL) |
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| 401 | { |
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| 402 | output->data=dConvertTypes[index].p(input->CopyD()); |
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| 403 | } |
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| 404 | else |
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| 405 | { |
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| 406 | dConvertTypes[index].pl(output,input); |
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| 407 | } |
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[0e1846] | 408 | if ((output->data==NULL) |
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| 409 | && ((outputType==IDEAL_CMD) |
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| 410 | ||(outputType==MODUL_CMD) |
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| 411 | ||(outputType==MATRIX_CMD) |
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[f43a74] | 412 | ||(outputType==INTMAT_CMD) |
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[0e1846] | 413 | ||(outputType==INTVEC_CMD))) |
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| 414 | { |
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| 415 | return TRUE; |
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| 416 | } |
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| 417 | output->next=input->next; |
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| 418 | input->next=NULL; |
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[bc669c] | 419 | //if (outputType==MATRIX_CMD) Print("convert %d -> matrix\n",inputType); |
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[0e1846] | 420 | return FALSE; |
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| 421 | } |
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| 422 | } |
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| 423 | return TRUE; |
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| 424 | } |
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| 425 | |
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| 426 | /*2 |
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| 427 | * try to convert 'inputType' in 'outputType' |
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| 428 | * return 0 on failure, an index (<>0) on success |
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| 429 | */ |
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| 430 | int iiTestConvert (int inputType, int outputType) |
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| 431 | { |
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| 432 | if ((inputType==outputType) |
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| 433 | || (outputType==DEF_CMD) |
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| 434 | || (outputType==IDHDL) |
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| 435 | || (outputType==ANY_TYPE)) |
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| 436 | { |
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| 437 | return -1; |
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| 438 | } |
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| 439 | |
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| 440 | if ((currRing==NULL) && (outputType>BEGIN_RING) && (outputType<END_RING)) |
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| 441 | return 0; |
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| 442 | |
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| 443 | // search the list |
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| 444 | int i=0; |
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| 445 | while (dConvertTypes[i].i_typ!=0) |
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| 446 | { |
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| 447 | if((dConvertTypes[i].i_typ==inputType) |
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| 448 | &&(dConvertTypes[i].o_typ==outputType)) |
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| 449 | { |
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| 450 | //Print("test convert %d to %d (%s -> %s):%d\n",inputType,outputType, |
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| 451 | //Tok2Cmdname(inputType), Tok2Cmdname(outputType),i+1); |
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| 452 | return i+1; |
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| 453 | } |
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| 454 | i++; |
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| 455 | } |
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| 456 | //Print("test convert %d to %d (%s -> %s):0\n",inputType,outputType, |
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| 457 | // Tok2Cmdname(inputType), Tok2Cmdname(outputType)); |
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| 458 | return 0; |
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| 459 | } |
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