Functions
ipconv.h File Reference
#include <kernel/structs.h>
#include <Singular/table.h>

Go to the source code of this file.

Functions

int iiTestConvert (int inputType, int outputType, struct sConvertTypes *dCT=dConvertTypes)
 
BOOLEAN iiConvert (int inputType, int outputType, int index, leftv input, leftv output, struct sConvertTypes *dCT=dConvertTypes)
 

Function Documentation

BOOLEAN iiConvert ( int  inputType,
int  outputType,
int  index,
leftv  input,
leftv  output,
struct sConvertTypes dCT = dConvertTypes 
)

Definition at line 287 of file ipconv.cc.

288 {
289  memset(output,0,sizeof(sleftv));
290  if ((inputType==outputType)
291  || (outputType==DEF_CMD)
292  || ((outputType==IDHDL)&&(input->rtyp==IDHDL)))
293  {
294  memcpy(output,input,sizeof(*output));
295  memset(input,0,sizeof(*input));
296  return FALSE;
297  }
298  else if (outputType==ANY_TYPE)
299  {
300  output->rtyp=ANY_TYPE;
301  output->data=(char *)(long)input->Typ();
302  /* the name of the object:*/
303  if (input->e==NULL)
304  {
305  if (input->rtyp==IDHDL)
306  /* preserve name: copy it */
307  output->name=omStrDup(IDID((idhdl)(input->data)));
308  else if (input->name!=NULL)
309  {
310  if (input->rtyp==ALIAS_CMD)
311  output->name=omStrDup(input->name);
312  else
313  {
314  output->name=input->name;
315  input->name=NULL;
316  }
317  }
318  else if ((input->rtyp==POLY_CMD) && (input->name==NULL))
319  {
320  if (input->data!=NULL)
321  {
322  int nr=pIsPurePower((poly)input->data);
323  if (nr!=0)
324  {
325  if (pGetExp((poly)input->data,nr)==1)
326  {
327  output->name=omStrDup(currRing->names[nr-1]);
328  }
329  else
330  {
331  char *tmp=(char *)omAlloc(4);
332  sprintf(tmp,"%c%d",*(currRing->names[nr-1]),
333  (int)pGetExp((poly)input->data,nr));
334  output->name=tmp;
335  }
336  }
337  else if(pIsConstant((poly)input->data))
338  {
339  StringSetS("");
340  number n=(pGetCoeff((poly)input->data));
341  n_Write(n, currRing->cf);
342  (pGetCoeff((poly)input->data))=n;
343  output->name=StringEndS();
344  }
345  }
346  }
347  else if ((input->rtyp==NUMBER_CMD) && (input->name==NULL))
348  {
349  StringSetS("");
350  number n=(number)input->data;
351  n_Write(n, currRing->cf);
352  input->data=(void*)n;
353  output->name=StringEndS();
354  }
355  else
356  {
357  /* no need to preserve name: use it */
358  output->name=input->name;
359  memset(input,0,sizeof(*input));
360  }
361  }
362  output->next=input->next;
363  input->next=NULL;
364  return FALSE;
365  }
366  if (index!=0) /* iiTestConvert does not returned 'failure' */
367  {
368  index--;
369 
370  if((dConvertTypes[index].i_typ==inputType)
371  &&(dConvertTypes[index].o_typ==outputType))
372  {
373  if(traceit&TRACE_CONV)
374  {
375  Print("automatic conversion %s -> %s\n",
376  Tok2Cmdname(inputType),Tok2Cmdname(outputType));
377  }
378  if ((currRing==NULL) && (outputType>BEGIN_RING) && (outputType<END_RING))
379  return TRUE;
380  output->rtyp=outputType;
381  if (dConvertTypes[index].p!=NULL)
382  {
383  output->data=dConvertTypes[index].p(input->CopyD());
384  }
385  else
386  {
387  dConvertTypes[index].pl(output,input);
388  }
389  if ((output->data==NULL)
390  && ((outputType!=INT_CMD)
391  &&(outputType!=POLY_CMD)
392  &&(outputType!=VECTOR_CMD)
393  &&(outputType!=NUMBER_CMD)))
394  {
395  return TRUE;
396  }
397  output->next=input->next;
398  input->next=NULL;
399  //if (outputType==MATRIX_CMD) Print("convert %d -> matrix\n",inputType);
400  return FALSE;
401  }
402  }
403  return TRUE;
404 }
#define pIsPurePower(p)
Definition: polys.h:219
Class used for (list of) interpreter objects.
Definition: subexpr.h:83
#define ANY_TYPE
Definition: tok.h:34
#define Print
Definition: emacs.cc:83
Definition: tok.h:85
Subexpr e
Definition: subexpr.h:106
#define IDID(a)
Definition: ipid.h:121
#define FALSE
Definition: auxiliary.h:140
return P p
Definition: myNF.cc:203
#define TRACE_CONV
Definition: reporter.h:45
const CanonicalForm CFMap CFMap int &both_non_zero int n
Definition: cfEzgcd.cc:52
#define TRUE
Definition: auxiliary.h:144
char * StringEndS()
Definition: reporter.cc:151
static number & pGetCoeff(poly p)
return an alias to the leading coefficient of p assumes that p != NULL NOTE: not copy ...
Definition: monomials.h:51
int traceit
Definition: febase.cc:47
int Typ()
Definition: subexpr.cc:955
#define omAlloc(size)
Definition: omAllocDecl.h:210
Definition: idrec.h:34
#define IDHDL
Definition: tok.h:35
void * data
Definition: subexpr.h:89
ring currRing
Widely used global variable which specifies the current polynomial ring for Singular interpreter and ...
Definition: polys.cc:12
#define pGetExp(p, i)
Exponent.
Definition: polys.h:41
Definition: tok.h:58
const char * name
Definition: subexpr.h:88
void StringSetS(const char *st)
Definition: reporter.cc:128
static FORCE_INLINE void n_Write(number &n, const coeffs r, const BOOLEAN bShortOut=TRUE)
Definition: coeffs.h:592
#define pIsConstant(p)
like above, except that Comp might be != 0
Definition: polys.h:209
leftv next
Definition: subexpr.h:87
struct sConvertTypes dConvertTypes[]
Definition: table.h:1117
static int index(p_Length length, p_Ord ord)
Definition: p_Procs_Impl.h:597
Definition: tok.h:38
#define NULL
Definition: omList.c:10
const char * Tok2Cmdname(int tok)
Definition: gentable.cc:128
int rtyp
Definition: subexpr.h:92
polyrec * poly
Definition: hilb.h:10
void * CopyD(int t)
Definition: subexpr.cc:662
#define omStrDup(s)
Definition: omAllocDecl.h:263
int iiTestConvert ( int  inputType,
int  outputType,
struct sConvertTypes dCT = dConvertTypes 
)

Definition at line 410 of file ipconv.cc.

411 {
412  if ((inputType==outputType)
413  || (outputType==DEF_CMD)
414  || (outputType==IDHDL)
415  || (outputType==ANY_TYPE))
416  {
417  return -1;
418  }
419 
420  if ((currRing==NULL) && (outputType>BEGIN_RING) && (outputType<END_RING))
421  return 0;
422 
423  // search the list
424  int i=0;
425  while (dConvertTypes[i].i_typ!=0)
426  {
427  if((dConvertTypes[i].i_typ==inputType)
428  &&(dConvertTypes[i].o_typ==outputType))
429  {
430  //Print("test convert %d to %d (%s -> %s):%d\n",inputType,outputType,
431  //Tok2Cmdname(inputType), Tok2Cmdname(outputType),i+1);
432  return i+1;
433  }
434  i++;
435  }
436  //Print("test convert %d to %d (%s -> %s):0\n",inputType,outputType,
437  // Tok2Cmdname(inputType), Tok2Cmdname(outputType));
438  return 0;
439 }
#define ANY_TYPE
Definition: tok.h:34
#define IDHDL
Definition: tok.h:35
ring currRing
Widely used global variable which specifies the current polynomial ring for Singular interpreter and ...
Definition: polys.cc:12
Definition: tok.h:58
int i
Definition: cfEzgcd.cc:123
struct sConvertTypes dConvertTypes[]
Definition: table.h:1117
#define NULL
Definition: omList.c:10