Functions
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 *   
)

Definition at line 780 of file rmodulo2m.cc.

781 {
782  assume( getCoeffType(r) == n_Z2m );
783  nr2mInitExp((int)(long)(p), r);
784 
785  r->is_field=FALSE;
786  r->is_domain=FALSE;
787  r->rep=n_rep_int;
788 
789  //r->cfKillChar = ndKillChar; /* dummy*/
790  r->nCoeffIsEqual = nr2mCoeffIsEqual;
791  r->cfCoeffString = nr2mCoeffString;
792 
793  r->modBase = (mpz_ptr) omAllocBin (gmp_nrz_bin);
794  mpz_init_set_si (r->modBase, 2L);
795  r->modNumber= (mpz_ptr) omAllocBin (gmp_nrz_bin);
796  mpz_init (r->modNumber);
797  mpz_pow_ui (r->modNumber, r->modBase, r->modExponent);
798 
799  /* next cast may yield an overflow as mod2mMask is an unsigned long */
800  r->ch = (int)r->mod2mMask + 1;
801 
802  r->cfInit = nr2mInit;
803  //r->cfCopy = ndCopy;
804  r->cfInt = nr2mInt;
805  r->cfAdd = nr2mAdd;
806  r->cfSub = nr2mSub;
807  r->cfMult = nr2mMult;
808  r->cfDiv = nr2mDiv;
809  r->cfAnn = nr2mAnn;
810  r->cfIntMod = nr2mMod;
811  r->cfExactDiv = nr2mDiv;
812  r->cfInpNeg = nr2mNeg;
813  r->cfInvers = nr2mInvers;
814  r->cfDivBy = nr2mDivBy;
815  r->cfDivComp = nr2mDivComp;
816  r->cfGreater = nr2mGreater;
817  r->cfEqual = nr2mEqual;
818  r->cfIsZero = nr2mIsZero;
819  r->cfIsOne = nr2mIsOne;
820  r->cfIsMOne = nr2mIsMOne;
821  r->cfGreaterZero = nr2mGreaterZero;
822  r->cfWriteLong = nr2mWrite;
823  r->cfRead = nr2mRead;
824  r->cfPower = nr2mPower;
825  r->cfSetMap = nr2mSetMap;
826 // r->cfNormalize = ndNormalize; // default
827  r->cfLcm = nr2mLcm;
828  r->cfGcd = nr2mGcd;
829  r->cfIsUnit = nr2mIsUnit;
830  r->cfGetUnit = nr2mGetUnit;
831  r->cfExtGcd = nr2mExtGcd;
832  r->cfCoeffWrite = nr2mCoeffWrite;
833  r->cfCoeffName = nr2mCoeffName;
834  r->cfQuot1 = nr2mQuot1;
835 #ifdef LDEBUG
836  r->cfDBTest = nr2mDBTest;
837 #endif
838  r->has_simple_Alloc=TRUE;
839  return FALSE;
840 }
#define omAllocBin(bin)
Definition: omAllocDecl.h:205
static BOOLEAN nr2mGreater(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:467
static char * nr2mCoeffName(const coeffs cf)
Definition: rmodulo2m.cc:62
static number nr2mLcm(number a, number b, const coeffs)
Definition: rmodulo2m.cc:157
static number nr2mAnn(number b, const coeffs r)
Definition: rmodulo2m.cc:576
static BOOLEAN nr2mDivBy(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:439
static void nr2mWrite(number a, const coeffs r)
Definition: rmodulo2m.cc:736
only used if HAVE_RINGS is defined
Definition: coeffs.h:47
#define FALSE
Definition: auxiliary.h:96
static long nr2mInt(number &n, const coeffs r)
Definition: rmodulo2m.cc:354
static number nr2mDiv(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:411
#define TRUE
Definition: auxiliary.h:100
static number nr2mGetUnit(number k, const coeffs)
Definition: rmodulo2m.cc:383
static BOOLEAN nr2mIsZero(number a, const coeffs)
Definition: rmodulo2m.cc:391
static BOOLEAN nr2mCoeffIsEqual(const coeffs r, n_coeffType n, void *p)
Definition: rmodulo2m.cc:77
static number nr2mNeg(number c, const coeffs r)
Definition: rmodulo2m.cc:597
static BOOLEAN nr2mIsOne(number a, const coeffs)
Definition: rmodulo2m.cc:396
#define LDEBUG
Definition: mod2.h:308
static const char * nr2mRead(const char *s, number *a, const coeffs r)
Definition: rmodulo2m.cc:761
#define assume(x)
Definition: mod2.h:390
BOOLEAN nr2mDBTest(number a, const char *f, const int l, const coeffs r)
Definition: rmodulo2m.cc:26
static coeffs nr2mQuot1(number c, const coeffs r)
Definition: rmodulo2m.cc:93
static char * nr2mCoeffString(const coeffs r)
Definition: rmodulo2m.cc:88
static int nr2mDivComp(number as, number bs, const coeffs)
Definition: rmodulo2m.cc:472
static void nr2mInitExp(int m, coeffs r)
Definition: rmodulo2m.cc:729
static BOOLEAN nr2mGreaterZero(number k, const coeffs r)
Definition: rmodulo2m.cc:132
static FORCE_INLINE n_coeffType getCoeffType(const coeffs r)
Returns the type of coeffs domain.
Definition: coeffs.h:421
static number nr2mMult(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:142
static number nr2mExtGcd(number a, number b, number *s, number *t, const coeffs r)
Definition: rmodulo2m.cc:293
static BOOLEAN nr2mIsMOne(number a, const coeffs r)
Definition: rmodulo2m.cc:401
static BOOLEAN nr2mEqual(number a, number b, const coeffs)
Definition: rmodulo2m.cc:406
static number nr2mInvers(number c, const coeffs r)
Definition: rmodulo2m.cc:279
static number nr2mSub(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:371
static BOOLEAN nr2mIsUnit(number a, const coeffs)
Definition: rmodulo2m.cc:378
EXTERN_VAR omBin gmp_nrz_bin
Definition: rmodulo2m.cc:60
static void nr2mCoeffWrite(const coeffs r, BOOLEAN)
Definition: rmodulo2m.cc:72
static number nr2mInit(long i, const coeffs r)
Definition: rmodulo2m.cc:337
(int), see modulop.h
Definition: coeffs.h:110
int p
Definition: cfModGcd.cc:4019
static number nr2mGcd(number a, number b, const coeffs)
Definition: rmodulo2m.cc:180
static number nr2mAdd(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:364
static void nr2mPower(number a, int i, number *result, const coeffs r)
Definition: rmodulo2m.cc:317
static nMapFunc nr2mSetMap(const coeffs src, const coeffs dst)
Definition: rmodulo2m.cc:664
static number nr2mMod(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:499

◆ nr2mMapZp()

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

Definition at line 617 of file rmodulo2m.cc.

618 {
619  unsigned long j = (unsigned long)1;
620  long ii = (long)from;
621  if (ii < 0) { j = dst->mod2mMask; ii = -ii; }
622  unsigned long i = (unsigned long)ii;
623  i = i & dst->mod2mMask;
624  /* now we have: from = j * i mod 2^m */
625  return (number)nr2mMult((number)i, (number)j, dst);
626 }
int j
Definition: facHensel.cc:105
int i
Definition: cfEzgcd.cc:125
static number nr2mMult(number a, number b, const coeffs r)
Definition: rmodulo2m.cc:142