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gnumpfl.h File Reference
#include "singularconfig.h"
#include "misc/auxiliary.h"

Go to the source code of this file.

Functions

BOOLEAN ngfInitChar (coeffs r, void *)
 Initialize r. More...
 
const char * ngfRead (const char *s, number *a, const coeffs r)
 

Function Documentation

◆ ngfInitChar()

BOOLEAN ngfInitChar ( coeffs  r,
void *  parameter 
)

Initialize r.

Definition at line 513 of file gnumpfl.cc.

514 {
515  assume( getCoeffType(n) == n_long_R );
516 
517  n->is_field=TRUE;
518  n->is_domain=TRUE;
519  n->rep=n_rep_gmp_float;
520 
521  //n->cfKillChar = ndKillChar; /* dummy */
522 
523  n->cfSetChar = ngfSetChar;
524  n->ch = 0;
525  n->cfCoeffName=ngfCoeffName;
526 
527  n->cfDelete = ngfDelete;
528  //n->cfNormalize=ndNormalize;
529  n->cfInit = ngfInit;
530  n->cfInitMPZ = ngfInitMPZ;
531  n->cfInt = ngfInt;
532  n->cfAdd = ngfAdd;
533  n->cfInpAdd = ngfInpAdd;
534  n->cfSub = ngfSub;
535  n->cfMult = ngfMult;
536  n->cfInpMult = ngfInpMult;
537  n->cfDiv = ngfDiv;
538  n->cfExactDiv= ngfDiv;
539  n->cfInpNeg = ngfNeg;
540  n->cfInvers = ngfInvers;
541  n->cfCopy = ngfCopy;
542  n->cfGreater = ngfGreater;
543  n->cfEqual = ngfEqual;
544  n->cfIsZero = ngfIsZero;
545  n->cfIsOne = ngfIsOne;
546  n->cfIsMOne = ngfIsMOne;
547  n->cfGreaterZero = ngfGreaterZero;
548  n->cfWriteLong = ngfWrite;
549  n->cfRead = ngfRead;
550  n->cfPower = ngfPower;
551  n->cfSetMap = ngfSetMap;
552 #ifdef LDEBUG
553  //n->cfDBTest = ndDBTest; // not yet implemented: ngfDBTest
554 #endif
555 
556  n->nCoeffIsEqual = ngfCoeffIsEqual;
557 
558  if( parameter != NULL)
559  {
560  LongComplexInfo* p = (LongComplexInfo*)parameter;
561 
562  n->float_len = p->float_len;
563  n->float_len2 = p->float_len2;
564  } else // default values, just for testing!
565  {
566  n->float_len = SHORT_REAL_LENGTH;
567  n->float_len2 = SHORT_REAL_LENGTH;
568  }
569 
570  assume( n->float_len2 >= SHORT_REAL_LENGTH );
571 
572  assume( n_NumberOfParameters(n) == 0 );
573  assume( n_ParameterNames(n) == NULL );
574 
575  return FALSE;
576 }
#define TRUE
Definition: auxiliary.h:100
#define FALSE
Definition: auxiliary.h:96
int p
Definition: cfModGcd.cc:4078
@ n_long_R
real floating point (GMP) numbers
Definition: coeffs.h:33
static FORCE_INLINE char const ** n_ParameterNames(const coeffs r)
Returns a (const!) pointer to (const char*) names of parameters.
Definition: coeffs.h:778
static FORCE_INLINE n_coeffType getCoeffType(const coeffs r)
Returns the type of coeffs domain.
Definition: coeffs.h:421
static FORCE_INLINE int n_NumberOfParameters(const coeffs r)
Returns the number of parameters.
Definition: coeffs.h:774
@ n_rep_gmp_float
(gmp_float), see
Definition: coeffs.h:117
static number ngfInit(long i, const coeffs r)
Definition: gnumpfl.cc:39
static number ngfCopy(number a, const coeffs r)
Definition: gnumpfl.cc:96
static BOOLEAN ngfGreater(number a, number b, const coeffs r)
Definition: gnumpfl.cc:260
static void ngfSetChar(const coeffs r)
Definition: gnumpfl.cc:416
static void ngfInpAdd(number &a, number b, const coeffs R)
Definition: gnumpfl.cc:161
static number ngfInvers(number a, const coeffs r)
Definition: gnumpfl.cc:133
static long ngfInt(number &i, const coeffs r)
Definition: gnumpfl.cc:50
static number ngfInitMPZ(mpz_t m, const coeffs)
Definition: gnumpfl.cc:472
static number ngfDiv(number a, number b, const coeffs r)
Definition: gnumpfl.cc:200
static number ngfAdd(number a, number b, const coeffs R)
Definition: gnumpfl.cc:153
static BOOLEAN ngfGreaterZero(number a, const coeffs r)
Definition: gnumpfl.cc:250
static BOOLEAN ngfIsMOne(number a, const coeffs r)
Definition: gnumpfl.cc:290
static BOOLEAN ngfIsZero(number a, const coeffs r)
Definition: gnumpfl.cc:61
static void ngfWrite(number a, const coeffs r)
Definition: gnumpfl.cc:385
static number ngfPower(number x, int exp, const coeffs r)
Definition: gnumpfl.cc:221
static BOOLEAN ngfEqual(number a, number b, const coeffs r)
Definition: gnumpfl.cc:270
static void ngfDelete(number *a, const coeffs r)
Definition: gnumpfl.cc:82
const char * ngfRead(const char *s, number *a, const coeffs r)
Definition: gnumpfl.cc:326
static BOOLEAN ngfCoeffIsEqual(const coeffs r, n_coeffType n, void *parameter)
Definition: gnumpfl.cc:403
static number ngfNeg(number a, const coeffs r)
Definition: gnumpfl.cc:122
static void ngfInpMult(number &a, number b, const coeffs R)
Definition: gnumpfl.cc:190
static BOOLEAN ngfIsOne(number a, const coeffs r)
Definition: gnumpfl.cc:280
static number ngfMult(number a, number b, const coeffs R)
Definition: gnumpfl.cc:182
static nMapFunc ngfSetMap(const coeffs src, const coeffs dst)
Definition: gnumpfl.cc:478
static number ngfSub(number a, number b, const coeffs R)
Definition: gnumpfl.cc:171
static char * ngfCoeffName(const coeffs r)
Definition: gnumpfl.cc:421
#define assume(x)
Definition: mod2.h:389
#define SHORT_REAL_LENGTH
Definition: numbers.h:57
#define NULL
Definition: omList.c:12

◆ ngfRead()

const char* ngfRead ( const char *  s,
number *  a,
const coeffs  r 
)

Definition at line 326 of file gnumpfl.cc.

327 {
329 
330  char *s= (char *)start;
331 
332  //Print("%s\n",s);
333 
334  s= ngfEatFloatNExp( s );
335 
336  if (*s=='\0') // 0
337  {
338  if ( *(gmp_float**)a == NULL ) (*(gmp_float**)a)= new gmp_float();
339  (*(gmp_float**)a)->setFromStr(start);
340  }
341  else if (s==start) // 1
342  {
343  if ( *(gmp_float**)a != NULL ) delete (*(gmp_float**)a);
344  (*(gmp_float**)a)= new gmp_float(1);
345  }
346  else
347  {
348  gmp_float divisor(1.0);
349  char *start2=s;
350  if ( *s == '/' )
351  {
352  s++;
353  s= ngfEatFloatNExp( (char *)s );
354  if (s!= start2+1)
355  {
356  char tmp_c=*s;
357  *s='\0';
358  divisor.setFromStr(start2+1);
359  *s=tmp_c;
360  }
361  else
362  {
363  Werror("wrong long real format: %s",start2);
364  }
365  }
366  char c=*start2;
367  *start2='\0';
368  if ( *(gmp_float**)a == NULL ) (*(gmp_float**)a)= new gmp_float();
369  (*(gmp_float**)a)->setFromStr(start);
370  *start2=c;
371  if (divisor.isZero())
372  {
373  WerrorS(nDivBy0);
374  }
375  else
376  (**(gmp_float**)a) /= divisor;
377  }
378 
379  return s;
380 }
@ n_long_C
complex floating point (GMP) numbers
Definition: coeffs.h:41
const CanonicalForm int s
Definition: facAbsFact.cc:51
void WerrorS(const char *s)
Definition: feFopen.cc:24
static char * ngfEatFloatNExp(char *s)
Definition: gnumpfl.cc:297
const char *const nDivBy0
Definition: numbers.h:88
void Werror(const char *fmt,...)
Definition: reporter.cc:189