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rmodulo2m.h File Reference
#include "misc/auxiliary.h"

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Functions

BOOLEAN nr2mInitChar (coeffs r, void *)
 
number nr2mMapZp (number from, const coeffs, const coeffs dst)
 

Function Documentation

◆ nr2mInitChar()

BOOLEAN nr2mInitChar ( coeffs  r,
void *  p 
)

Definition at line 769 of file rmodulo2m.cc.

770{
771 assume( getCoeffType(r) == n_Z2m );
772 nr2mInitExp((int)(long)(p), r);
773
774 r->is_field=FALSE;
775 r->is_domain=FALSE;
776 r->rep=n_rep_int;
777
778 //r->cfKillChar = ndKillChar; /* dummy*/
779 r->nCoeffIsEqual = nr2mCoeffIsEqual;
780
781 r->modBase = (mpz_ptr) omAllocBin (gmp_nrz_bin);
782 mpz_init_set_si (r->modBase, 2L);
783 r->modNumber= (mpz_ptr) omAllocBin (gmp_nrz_bin);
784 mpz_init (r->modNumber);
785 mpz_pow_ui (r->modNumber, r->modBase, r->modExponent);
786
787 /* next cast may yield an overflow as mod2mMask is an unsigned long */
788 r->ch = (int)r->mod2mMask + 1;
789
790 r->cfInit = nr2mInit;
791 //r->cfCopy = ndCopy;
792 r->cfInt = nr2mInt;
793 r->cfAdd = nr2mAdd;
794 r->cfSub = nr2mSub;
795 r->cfMult = nr2mMult;
796 r->cfDiv = nr2mDiv;
797 r->cfAnn = nr2mAnn;
798 r->cfIntMod = nr2mMod;
799 r->cfExactDiv = nr2mDiv;
800 r->cfInpNeg = nr2mNeg;
801 r->cfInvers = nr2mInvers;
802 r->cfDivBy = nr2mDivBy;
803 r->cfDivComp = nr2mDivComp;
804 r->cfGreater = nr2mGreater;
805 r->cfEqual = nr2mEqual;
806 r->cfIsZero = nr2mIsZero;
807 r->cfIsOne = nr2mIsOne;
808 r->cfIsMOne = nr2mIsMOne;
809 r->cfGreaterZero = nr2mGreaterZero;
810 r->cfWriteLong = nr2mWrite;
811 r->cfRead = nr2mRead;
812 r->cfPower = nr2mPower;
813 r->cfSetMap = nr2mSetMap;
814// r->cfNormalize = ndNormalize; // default
815 r->cfLcm = nr2mLcm;
816 r->cfGcd = nr2mGcd;
817 r->cfIsUnit = nr2mIsUnit;
818 r->cfGetUnit = nr2mGetUnit;
819 r->cfExtGcd = nr2mExtGcd;
820 r->cfCoeffName = nr2mCoeffName;
821 r->cfQuot1 = nr2mQuot1;
822#ifdef LDEBUG
823 r->cfDBTest = nr2mDBTest;
824#endif
825 r->has_simple_Alloc=TRUE;
826 return FALSE;
827}
#define TRUE
Definition: auxiliary.h:100
#define FALSE
Definition: auxiliary.h:96
int p
Definition: cfModGcd.cc:4080
@ n_Z2m
only used if HAVE_RINGS is defined
Definition: coeffs.h:47
static FORCE_INLINE n_coeffType getCoeffType(const coeffs r)
Returns the type of coeffs domain.
Definition: coeffs.h:422
@ n_rep_int
(int), see modulop.h
Definition: coeffs.h:111
#define assume(x)
Definition: mod2.h:387
#define LDEBUG
Definition: mod2.h:305
#define omAllocBin(bin)
Definition: omAllocDecl.h:205
static number nr2mGcd(number a, number b, const coeffs)
Definition: rmodulo2m.cc:170
static nMapFunc nr2mSetMap(const coeffs src, const coeffs dst)
Definition: rmodulo2m.cc:658
static void nr2mWrite(number a, const coeffs r)
Definition: rmodulo2m.cc:725
static BOOLEAN nr2mIsUnit(number a, const coeffs)
Definition: rmodulo2m.cc:368
static number nr2mSub(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:361
static number nr2mLcm(number a, number b, const coeffs)
Definition: rmodulo2m.cc:147
static BOOLEAN nr2mIsOne(number a, const coeffs)
Definition: rmodulo2m.cc:386
static number nr2mAnn(number b, const coeffs r)
Definition: rmodulo2m.cc:571
static number nr2mInit(long i, const coeffs r)
Definition: rmodulo2m.cc:327
static number nr2mExtGcd(number a, number b, number *s, number *t, const coeffs r)
Definition: rmodulo2m.cc:283
static number nr2mGetUnit(number k, const coeffs)
Definition: rmodulo2m.cc:373
static void nr2mInitExp(int m, coeffs r)
Definition: rmodulo2m.cc:718
static void nr2mPower(number a, int i, number *result, const coeffs r)
Definition: rmodulo2m.cc:307
static number nr2mInvers(number c, const coeffs r)
Definition: rmodulo2m.cc:269
static int nr2mDivComp(number as, number bs, const coeffs)
Definition: rmodulo2m.cc:467
BOOLEAN nr2mDBTest(number a, const char *f, const int l, const coeffs r)
Definition: rmodulo2m.cc:26
static number nr2mMult(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:132
static long nr2mInt(number &n, const coeffs r)
Definition: rmodulo2m.cc:344
static BOOLEAN nr2mDivBy(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:434
static BOOLEAN nr2mGreaterZero(number k, const coeffs r)
Definition: rmodulo2m.cc:122
static number nr2mNeg(number c, const coeffs r)
Definition: rmodulo2m.cc:592
EXTERN_VAR omBin gmp_nrz_bin
Definition: rmodulo2m.cc:60
static number nr2mMod(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:494
static BOOLEAN nr2mCoeffIsEqual(const coeffs r, n_coeffType n, void *p)
Definition: rmodulo2m.cc:72
static number nr2mAdd(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:354
static char * nr2mCoeffName(const coeffs cf)
Definition: rmodulo2m.cc:62
static BOOLEAN nr2mEqual(number a, number b, const coeffs)
Definition: rmodulo2m.cc:396
static BOOLEAN nr2mGreater(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:462
static BOOLEAN nr2mIsZero(number a, const coeffs)
Definition: rmodulo2m.cc:381
static const char * nr2mRead(const char *s, number *a, const coeffs r)
Definition: rmodulo2m.cc:750
static BOOLEAN nr2mIsMOne(number a, const coeffs r)
Definition: rmodulo2m.cc:391
static number nr2mDiv(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:401
static coeffs nr2mQuot1(number c, const coeffs r)
Definition: rmodulo2m.cc:83

◆ nr2mMapZp()

number nr2mMapZp ( number  from,
const  coeffs,
const coeffs  dst 
)

Definition at line 612 of file rmodulo2m.cc.

613{
614 unsigned long j = (unsigned long)1;
615 long ii = (long)from;
616 if (ii < 0) { j = dst->mod2mMask; ii = -ii; }
617 unsigned long i = (unsigned long)ii;
618 i = i & dst->mod2mMask;
619 /* now we have: from = j * i mod 2^m */
620 return (number)nr2mMult((number)i, (number)j, dst);
621}
int i
Definition: cfEzgcd.cc:132
int j
Definition: facHensel.cc:110