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

Go to the source code of this file.

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 770 of file rmodulo2m.cc.

771 {
772  assume( getCoeffType(r) == n_Z2m );
773  nr2mInitExp((int)(long)(p), r);
774 
775  r->is_field=FALSE;
776  r->is_domain=FALSE;
777  r->rep=n_rep_int;
778 
779  //r->cfKillChar = ndKillChar; /* dummy*/
780  r->nCoeffIsEqual = nr2mCoeffIsEqual;
781 
782  r->modBase = (mpz_ptr) omAllocBin (gmp_nrz_bin);
783  mpz_init_set_si (r->modBase, 2L);
784  r->modNumber= (mpz_ptr) omAllocBin (gmp_nrz_bin);
785  mpz_init (r->modNumber);
786  mpz_pow_ui (r->modNumber, r->modBase, r->modExponent);
787 
788  /* next cast may yield an overflow as mod2mMask is an unsigned long */
789  r->ch = (int)r->mod2mMask + 1;
790 
791  r->cfInit = nr2mInit;
792  //r->cfCopy = ndCopy;
793  r->cfInt = nr2mInt;
794  r->cfAdd = nr2mAdd;
795  r->cfSub = nr2mSub;
796  r->cfMult = nr2mMult;
797  r->cfDiv = nr2mDiv;
798  r->cfAnn = nr2mAnn;
799  r->cfIntMod = nr2mMod;
800  r->cfExactDiv = nr2mDiv;
801  r->cfInpNeg = nr2mNeg;
802  r->cfInvers = nr2mInvers;
803  r->cfDivBy = nr2mDivBy;
804  r->cfDivComp = nr2mDivComp;
805  r->cfGreater = nr2mGreater;
806  r->cfEqual = nr2mEqual;
807  r->cfIsZero = nr2mIsZero;
808  r->cfIsOne = nr2mIsOne;
809  r->cfIsMOne = nr2mIsMOne;
810  r->cfGreaterZero = nr2mGreaterZero;
811  r->cfWriteLong = nr2mWrite;
812  r->cfRead = nr2mRead;
813  r->cfPower = nr2mPower;
814  r->cfSetMap = nr2mSetMap;
815 // r->cfNormalize = ndNormalize; // default
816  r->cfLcm = nr2mLcm;
817  r->cfGcd = nr2mGcd;
818  r->cfIsUnit = nr2mIsUnit;
819  r->cfGetUnit = nr2mGetUnit;
820  r->cfExtGcd = nr2mExtGcd;
821  r->cfCoeffName = nr2mCoeffName;
822  r->cfQuot1 = nr2mQuot1;
823 #ifdef LDEBUG
824  r->cfDBTest = nr2mDBTest;
825 #endif
826  r->has_simple_Alloc=TRUE;
827  return FALSE;
828 }
#define TRUE
Definition: auxiliary.h:100
#define FALSE
Definition: auxiliary.h:96
int p
Definition: cfModGcd.cc:4078
@ n_Z2m
only used if HAVE_RINGS is defined
Definition: coeffs.h:46
static FORCE_INLINE n_coeffType getCoeffType(const coeffs r)
Returns the type of coeffs domain.
Definition: coeffs.h:421
@ n_rep_int
(int), see modulop.h
Definition: coeffs.h:110
#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:171
static nMapFunc nr2mSetMap(const coeffs src, const coeffs dst)
Definition: rmodulo2m.cc:659
static void nr2mWrite(number a, const coeffs r)
Definition: rmodulo2m.cc:726
static BOOLEAN nr2mIsUnit(number a, const coeffs)
Definition: rmodulo2m.cc:369
static number nr2mSub(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:362
static number nr2mLcm(number a, number b, const coeffs)
Definition: rmodulo2m.cc:148
static BOOLEAN nr2mIsOne(number a, const coeffs)
Definition: rmodulo2m.cc:387
static number nr2mAnn(number b, const coeffs r)
Definition: rmodulo2m.cc:572
static number nr2mInit(long i, const coeffs r)
Definition: rmodulo2m.cc:328
static char * nr2mCoeffName(const coeffs cf)
Definition: rmodulo2m.cc:63
static number nr2mExtGcd(number a, number b, number *s, number *t, const coeffs r)
Definition: rmodulo2m.cc:284
static number nr2mGetUnit(number k, const coeffs)
Definition: rmodulo2m.cc:374
static void nr2mInitExp(int m, coeffs r)
Definition: rmodulo2m.cc:719
static void nr2mPower(number a, int i, number *result, const coeffs r)
Definition: rmodulo2m.cc:308
static number nr2mInvers(number c, const coeffs r)
Definition: rmodulo2m.cc:270
static int nr2mDivComp(number as, number bs, const coeffs)
Definition: rmodulo2m.cc:468
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:133
static long nr2mInt(number &n, const coeffs r)
Definition: rmodulo2m.cc:345
static BOOLEAN nr2mDivBy(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:435
static BOOLEAN nr2mGreaterZero(number k, const coeffs r)
Definition: rmodulo2m.cc:123
static number nr2mNeg(number c, const coeffs r)
Definition: rmodulo2m.cc:593
EXTERN_VAR omBin gmp_nrz_bin
Definition: rmodulo2m.cc:61
static number nr2mMod(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:495
static BOOLEAN nr2mCoeffIsEqual(const coeffs r, n_coeffType n, void *p)
Definition: rmodulo2m.cc:73
static number nr2mAdd(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:355
static BOOLEAN nr2mEqual(number a, number b, const coeffs)
Definition: rmodulo2m.cc:397
static BOOLEAN nr2mGreater(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:463
static BOOLEAN nr2mIsZero(number a, const coeffs)
Definition: rmodulo2m.cc:382
static const char * nr2mRead(const char *s, number *a, const coeffs r)
Definition: rmodulo2m.cc:751
static BOOLEAN nr2mIsMOne(number a, const coeffs r)
Definition: rmodulo2m.cc:392
static number nr2mDiv(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:402
static coeffs nr2mQuot1(number c, const coeffs r)
Definition: rmodulo2m.cc:84

◆ nr2mMapZp()

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

Definition at line 613 of file rmodulo2m.cc.

614 {
615  unsigned long j = (unsigned long)1;
616  long ii = (long)from;
617  if (ii < 0) { j = dst->mod2mMask; ii = -ii; }
618  unsigned long i = (unsigned long)ii;
619  i = i & dst->mod2mMask;
620  /* now we have: from = j * i mod 2^m */
621  return (number)nr2mMult((number)i, (number)j, dst);
622 }
int i
Definition: cfEzgcd.cc:132
int j
Definition: facHensel.cc:110