| 1 | #ifndef LONGRAT_H |
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| 2 | #define LONGRAT_H |
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| 3 | /**************************************** |
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| 4 | * Computer Algebra System SINGULAR * |
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| 5 | ****************************************/ |
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| 6 | /* $Id: longrat.h,v 1.2 2005-07-27 15:48:29 Singular Exp $ */ |
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| 7 | /* |
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| 8 | * ABSTRACT: computation with long rational numbers |
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| 9 | */ |
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| 10 | #include "structs.h" |
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| 11 | |
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| 12 | #include "si_gmp.h" |
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| 13 | |
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| 14 | typedef MP_INT lint; |
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| 15 | |
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| 16 | #define SR_INT 1L |
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| 17 | #define INT_TO_SR(INT) ((number) (((long)INT << 2) + SR_INT)) |
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| 18 | #define SR_TO_INT(SR) (((long)SR) >> 2) |
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| 19 | |
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| 20 | |
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| 21 | #define MP_SMALL 1 |
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| 22 | |
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| 23 | #define mpz_size1(A) (ABS((A)->_mp_size)) |
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| 24 | //#define mpz_size1(A) mpz_size(A) |
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| 25 | |
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| 26 | struct snumber; |
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| 27 | typedef struct snumber *number; |
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| 28 | struct snumber |
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| 29 | { |
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| 30 | lint z; |
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| 31 | lint n; |
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| 32 | #if defined(LDEBUG) |
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| 33 | int debug; |
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| 34 | #endif |
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| 35 | BOOLEAN s; |
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| 36 | }; |
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| 37 | |
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| 38 | // allow inlining only from p_Numbers.h and if ! LDEBUG |
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| 39 | |
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| 40 | #if defined(DO_LINLINE) && defined(P_NUMBERS_H) && !defined(LDEBUG) |
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| 41 | #define LINLINE static inline |
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| 42 | #else |
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| 43 | #define LINLINE |
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| 44 | #undef DO_LINLINE |
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| 45 | #endif // DO_LINLINE |
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| 46 | |
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| 47 | LINLINE BOOLEAN nlEqual(number a, number b); |
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| 48 | LINLINE number nlInit(int i); |
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| 49 | LINLINE BOOLEAN nlIsOne(number a); |
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| 50 | LINLINE BOOLEAN nlIsZero(number za); |
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| 51 | LINLINE number nlCopy(number a); |
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| 52 | LINLINE void nlNew(number *r); |
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| 53 | LINLINE void nlDelete(number *a, const ring r); |
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| 54 | LINLINE number nlNeg(number za); |
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| 55 | LINLINE number nlAdd(number la, number li); |
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| 56 | LINLINE number nlSub(number la, number li); |
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| 57 | LINLINE number nlMult(number a, number b); |
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| 58 | |
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| 59 | number nlInit2 (int i, int j); |
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| 60 | number nlGcd(number a, number b, const ring r); |
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| 61 | number nlLcm(number a, number b, const ring r); /*special routine !*/ |
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| 62 | BOOLEAN nlGreater(number a, number b); |
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| 63 | BOOLEAN nlIsMOne(number a); |
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| 64 | int nlInt(number &n); |
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| 65 | BOOLEAN nlGreaterZero(number za); |
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| 66 | number nlInvers(number a); |
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| 67 | void nlNormalize(number &x); |
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| 68 | number nlDiv(number a, number b); |
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| 69 | number nlExactDiv(number a, number b); |
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| 70 | number nlIntDiv(number a, number b); |
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| 71 | number nlIntMod(number a, number b); |
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| 72 | void nlPower(number x, int exp, number *lu); |
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| 73 | char * nlRead (char *s, number *a); |
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| 74 | void nlWrite(number &a); |
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| 75 | int nlModP(number n, int p); |
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| 76 | int nlSize(number n); |
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| 77 | number nlGetDenom(number &n, const ring r); |
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| 78 | number nlGetNom(number &n, const ring r); |
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| 79 | #ifdef LDEBUG |
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| 80 | BOOLEAN nlDBTest(number a, char *f, int l); |
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| 81 | #endif |
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| 82 | extern number nlOne; |
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| 83 | |
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| 84 | nMapFunc nlSetMap(ring src, ring dst); |
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| 85 | |
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| 86 | #ifndef OM_ALLOC_H |
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| 87 | struct omBin_s; |
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| 88 | #endif |
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| 89 | extern omBin_s* rnumber_bin; |
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| 90 | |
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| 91 | // in-place operations |
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| 92 | void nlInpGcd(number &a, number b, ring r); |
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| 93 | void nlInpIntDiv(number &a, number b, ring r); |
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| 94 | void nlInpAdd(number &a, number b, ring r); |
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| 95 | void nlInpMult(number &a, number b, ring r); |
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| 96 | |
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| 97 | #endif |
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| 98 | |
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| 99 | |
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