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ring.cc File Reference
#include <cmath>
#include "misc/auxiliary.h"
#include "misc/mylimits.h"
#include "misc/options.h"
#include "misc/int64vec.h"
#include "coeffs/numbers.h"
#include "coeffs/coeffs.h"
#include "polys/monomials/p_polys.h"
#include "polys/simpleideals.h"
#include "polys/monomials/ring.h"
#include "polys/monomials/maps.h"
#include "polys/prCopy.h"
#include "polys/templates/p_Procs.h"
#include "polys/matpol.h"
#include "polys/nc/nc.h"
#include "polys/nc/sca.h"
#include "ext_fields/algext.h"
#include "ext_fields/transext.h"
#include <ctype.h>

Go to the source code of this file.

Macros

#define BITS_PER_LONG   8*SIZEOF_LONG
 
#define MYTEST   0
 
#define pFDeg_CASE(A)   if(r->pFDeg == A) PrintS( "" #A "" )
 
#define rOppVar(R, I)   (rVar(R)+1-I)
 

Typedefs

typedef char * char_ptr
 

Functions

const char * rSimpleOrdStr (int ord)
 
void rDelete (ring r)
 unconditionally deletes fields in r More...
 
static void rSetVarL (ring r)
 set r->VarL_Size, r->VarL_Offset, r->VarL_LowIndex More...
 
static unsigned long rGetDivMask (int bits)
 get r->divmask depending on bits per exponent More...
 
static void rRightAdjustVarOffset (ring r)
 right-adjust r->VarOffset More...
 
static void rOptimizeLDeg (ring r)
 
ring rDefault (const coeffs cf, int N, char **n, int ord_size, rRingOrder_t *ord, int *block0, int *block1, int **wvhdl, unsigned long bitmask)
 
ring rDefault (int ch, int N, char **n, int ord_size, rRingOrder_t *ord, int *block0, int *block1, int **wvhdl)
 
ring rDefault (const coeffs cf, int N, char **n, const rRingOrder_t o)
 
ring rDefault (int ch, int N, char **n)
 
BOOLEAN rCheckIV (const intvec *iv)
 
int rTypeOfMatrixOrder (const intvec *order)
 
int r_IsRingVar (const char *n, char **names, int N)
 
void rWrite (ring r, BOOLEAN details)
 
rRingOrder_t rOrderName (char *ordername)
 
char * rOrdStr (ring r)
 
char * rVarStr (ring r)
 
char * rCharStr (const ring r)
 TODO: make it a virtual method of coeffs, together with: Decompose & Compose, rParameter & rPar. More...
 
char * rParStr (ring r)
 
char * rString (ring r)
 
int rChar (ring r)
 
ring nc_rCreateNCcomm_rCopy (ring r)
 
int rSumInternal (ring r1, ring r2, ring &sum, BOOLEAN vartest, BOOLEAN dp_dp)
 returns -1 for not compatible, 1 for compatible (and sum) dp_dp:0: block ordering, 1: dp,dp, 2: aa(...),dp vartest: check for name conflicts More...
 
int rSum (ring r1, ring r2, ring &sum)
 
ring rCopy0 (const ring r, BOOLEAN copy_qideal, BOOLEAN copy_ordering)
 
ring rCopy0AndAddA (const ring r, int64vec *wv64, BOOLEAN copy_qideal, BOOLEAN copy_ordering)
 
ring rCopy (ring r)
 
BOOLEAN rEqual (ring r1, ring r2, BOOLEAN qr)
 returns TRUE, if r1 equals r2 FALSE, otherwise Equality is determined componentwise, if qr == 1, then qrideal equality is tested, as well More...
 
BOOLEAN rSamePolyRep (ring r1, ring r2)
 returns TRUE, if r1 and r2 represents the monomials in the same way FALSE, otherwise this is an analogue to rEqual but not so strict More...
 
rOrderType_t rGetOrderType (ring r)
 
BOOLEAN rHas_c_Ordering (const ring r)
 
BOOLEAN rHasSimpleOrder (const ring r)
 
BOOLEAN rHasSimpleLexOrder (const ring r)
 returns TRUE, if simple lp or ls ordering More...
 
BOOLEAN rOrder_is_DegOrdering (const rRingOrder_t order)
 
BOOLEAN rOrder_is_WeightedOrdering (rRingOrder_t order)
 
BOOLEAN rHasSimpleOrderAA (ring r)
 
BOOLEAN rOrd_SetCompRequiresSetm (const ring r)
 return TRUE if p_SetComp requires p_Setm More...
 
BOOLEAN rOrd_is_Totaldegree_Ordering (const ring r)
 
BOOLEAN rOrd_is_WeightedDegree_Ordering (const ring r)
 
BOOLEAN rIsPolyVar (int v, const ring r)
 returns TRUE if var(i) belongs to p-block More...
 
BOOLEAN rDBTest (ring r, const char *fn, const int l)
 
static void rO_Align (int &place, int &bitplace)
 
static void rO_TDegree (int &place, int &bitplace, int start, int end, long *o, sro_ord &ord_struct)
 
static void rO_TDegree_neg (int &place, int &bitplace, int start, int end, long *o, sro_ord &ord_struct)
 
static void rO_WDegree (int &place, int &bitplace, int start, int end, long *o, sro_ord &ord_struct, int *weights)
 
static void rO_WMDegree (int &place, int &bitplace, int start, int end, long *o, sro_ord &ord_struct, int *weights)
 
static void rO_WDegree64 (int &place, int &bitplace, int start, int end, long *o, sro_ord &ord_struct, int64 *weights)
 
static void rO_WDegree_neg (int &place, int &bitplace, int start, int end, long *o, sro_ord &ord_struct, int *weights)
 
static void rO_LexVars (int &place, int &bitplace, int start, int end, int &prev_ord, long *o, int *v, int bits, int opt_var)
 
static void rO_LexVars_neg (int &place, int &bitplace, int start, int end, int &prev_ord, long *o, int *v, int bits, int opt_var)
 
static void rO_Syzcomp (int &place, int &bitplace, int &prev_ord, long *o, sro_ord &ord_struct)
 
static void rO_Syz (int &place, int &bitplace, int &prev_ord, int syz_comp, long *o, sro_ord &ord_struct)
 
static void rO_ISPrefix (int &place, int &bitplace, int &prev_ord, long *o, int, int *v, sro_ord &ord_struct)
 
static void rO_ISSuffix (int &place, int &bitplace, int &prev_ord, long *o, int N, int *v, sro_ord *tmp_typ, int &typ_i, int sgn)
 
static unsigned long rGetExpSize (unsigned long bitmask, int &bits)
 
unsigned long rGetExpSize (unsigned long bitmask, int &bits, int N)
 
ring rModifyRing (ring r, BOOLEAN omit_degree, BOOLEAN try_omit_comp, unsigned long exp_limit)
 
ring rModifyRing_Wp (ring r, int *weights)
 construct Wp, C ring More...
 
ring rModifyRing_Simple (ring r, BOOLEAN ommit_degree, BOOLEAN ommit_comp, unsigned long exp_limit, BOOLEAN &simple)
 
void rKillModifiedRing (ring r)
 
void rKillModified_Wp_Ring (ring r)
 
static void rSetOutParams (ring r)
 
static void rSetFirstWv (ring r, int i, rRingOrder_t *order, int *block1, int **wvhdl)
 
static void rSetDegStuff (ring r)
 
static void rSetNegWeight (ring r)
 
static void rSetOption (ring r)
 
static void rCheckOrdSgn (ring r, int i)
 
void p_SetGlobals (const ring r, BOOLEAN complete)
 set all properties of a new ring - also called by rComplete More...
 
static int sign (int x)
 
BOOLEAN rOrd_is_MixedDegree_Ordering (ring r)
 
BOOLEAN rComplete (ring r, int force)
 this needs to be called whenever a new ring is created: new fields in ring are created (like VarOffset), unless they already exist with force == 1, new fields are always created (overwritten), even if they exist More...
 
void rUnComplete (ring r)
 
void rDebugPrint (const ring r)
 
void p_DebugPrint (poly p, const ring r)
 
static void m_DebugPrint (const poly p, const ring R)
 debug-print monomial poly/vector p, assuming that it lives in the ring R More...
 
void pISUpdateComponents (ideal F, const intvec *const V, const int MIN, const ring r)
 
static void rNChangeSComps (int *currComponents, long *currShiftedComponents, ring r)
 
static void rNGetSComps (int **currComponents, long **currShiftedComponents, ring r)
 
static void rDBChangeSComps (int *currComponents, long *currShiftedComponents, int length, ring r)
 
static void rDBGetSComps (int **currComponents, long **currShiftedComponents, int *length, ring r)
 
void rChangeSComps (int *currComponents, long *currShiftedComponents, int length, ring r)
 
void rGetSComps (int **currComponents, long **currShiftedComponents, int *length, ring r)
 
ring rAssure_SyzOrder (const ring r, BOOLEAN complete)
 
ring rAssure_SyzComp (const ring r, BOOLEAN complete)
 
ring rAssure_TDeg (ring r, int &pos)
 
ring rAssure_HasComp (const ring r)
 
ring rAssure_CompLastBlock (ring r, BOOLEAN complete)
 makes sure that c/C ordering is last ordering More...
 
ring rAssure_SyzComp_CompLastBlock (const ring r)
 makes sure that c/C ordering is last ordering and SyzIndex is first More...
 
static ring rAssure_Global (rRingOrder_t b1, rRingOrder_t b2, const ring r)
 
ring rAssure_InducedSchreyerOrdering (const ring r, BOOLEAN complete, int sgn)
 
ring rAssure_dp_S (const ring r)
 
ring rAssure_dp_C (const ring r)
 
ring rAssure_C_dp (const ring r)
 
ring rAssure_c_dp (const ring r)
 
int rGetISPos (const int p, const ring r)
 Finds p^th IS ordering, and returns its position in r->typ[] returns -1 if something went wrong! p - starts with 0! More...
 
BOOLEAN rSetISReference (const ring r, const ideal F, const int i, const int p)
 Changes r by setting induced ordering parameters: limit and reference leading terms F belong to r, we will DO a copy! We will use it AS IS! returns true is everything was allright! More...
 
void rSetSyzComp (int k, const ring r)
 
int rGetMaxSyzComp (int i, const ring r)
 return the max-comonent wchich has syzIndex i Assume: i<= syzIndex_limit More...
 
BOOLEAN rRing_is_Homog (const ring r)
 
BOOLEAN rRing_has_CompLastBlock (const ring r)
 
BOOLEAN rRing_ord_pure_dp (const ring r)
 
BOOLEAN rRing_ord_pure_Dp (const ring r)
 
BOOLEAN rRing_ord_pure_lp (const ring r)
 
int64rGetWeightVec (const ring r)
 
void rSetWeightVec (ring r, int64 *wv)
 
static int rRealloc1 (ring r, int size, int pos)
 
static void rOppWeight (int *w, int l)
 
ring rOpposite (ring src)
 
ring rEnvelope (ring R)
 
BOOLEAN nc_rComplete (const ring src, ring dest, bool bSetupQuotient)
 
void rModify_a_to_A (ring r)
 
poly rGetVar (const int varIndex, const ring r)
 
int n_IsParam (const number m, const ring r)
 TODO: rewrite somehow... More...
 
ring rPlusVar (const ring r, char *v, int left)
 K[x],"y" -> K[x,y] resp. K[y,x]. More...
 
ring rMinusVar (const ring r, char *v)
 undo rPlusVar More...
 

Variables

VAR omBin sip_sring_bin = omGetSpecBin(sizeof(ip_sring))
 
VAR omBin char_ptr_bin = omGetSpecBin(sizeof(char_ptr))
 
static const char *const ringorder_name []
 
VAR int pDBsyzComp =0
 

Macro Definition Documentation

◆ BITS_PER_LONG

#define BITS_PER_LONG   8*SIZEOF_LONG

Definition at line 40 of file ring.cc.

◆ MYTEST

#define MYTEST   0

Definition at line 2398 of file ring.cc.

◆ pFDeg_CASE

#define pFDeg_CASE (   A)    if(r->pFDeg == A) PrintS( "" #A "" )

◆ rOppVar

#define rOppVar (   R,
 
)    (rVar(R)+1-I)

Definition at line 5240 of file ring.cc.

Typedef Documentation

◆ char_ptr

typedef char* char_ptr

Definition at line 42 of file ring.cc.

Function Documentation

◆ m_DebugPrint()

static void m_DebugPrint ( const poly  p,
const ring  R 
)
inlinestatic

debug-print monomial poly/vector p, assuming that it lives in the ring R

Definition at line 4295 of file ring.cc.

4296 {
4297  Print("\nexp[0..%d]\n", R->ExpL_Size - 1);
4298  for(int i = 0; i < R->ExpL_Size; i++)
4299  Print("%09lx ", p->exp[i]);
4300  PrintLn();
4301  Print("v0:%9ld ", p_GetComp(p, R));
4302  for(int i = 1; i <= R->N; i++) Print(" v%d:%5ld",i, p_GetExp(p, i, R));
4303  PrintLn();
4304 }
int i
Definition: cfEzgcd.cc:132
int p
Definition: cfModGcd.cc:4078
#define Print
Definition: emacs.cc:80
#define p_GetComp(p, r)
Definition: monomials.h:64
static long p_GetExp(const poly p, const unsigned long iBitmask, const int VarOffset)
get a single variable exponent @Note: the integer VarOffset encodes:
Definition: p_polys.h:469
void PrintLn()
Definition: reporter.cc:310
#define R
Definition: sirandom.c:27

◆ n_IsParam()

int n_IsParam ( const number  m,
const ring  r 
)

TODO: rewrite somehow...

if m == var(i)/1 => return i,

Definition at line 5758 of file ring.cc.

5759 {
5760  assume(r != NULL);
5761  const coeffs C = r->cf;
5762  assume(C != NULL);
5763 
5765 
5766  const n_coeffType _filed_type = getCoeffType(C);
5767 
5768  if(( _filed_type == n_algExt )||( _filed_type == n_polyExt ))
5769  return naIsParam(m, C);
5770 
5771  if( _filed_type == n_transExt )
5772  return ntIsParam(m, C);
5773 
5774  Werror("n_IsParam: IsParam is not to be used for (coeff_type = %d)",getCoeffType(C));
5775 
5776  return 0;
5777 }
int naIsParam(number m, const coeffs cf)
if m == var(i)/1 => return i,
Definition: algext.cc:1096
int m
Definition: cfEzgcd.cc:128
static FORCE_INLINE BOOLEAN nCoeff_is_Extension(const coeffs r)
Definition: coeffs.h:846
n_coeffType
Definition: coeffs.h:27
@ n_polyExt
used to represent polys as coeffcients
Definition: coeffs.h:34
@ n_algExt
used for all algebraic extensions, i.e., the top-most extension in an extension tower is algebraic
Definition: coeffs.h:35
@ n_transExt
used for all transcendental extensions, i.e., the top-most extension in an extension tower is transce...
Definition: coeffs.h:38
static FORCE_INLINE n_coeffType getCoeffType(const coeffs r)
Returns the type of coeffs domain.
Definition: coeffs.h:421
#define assume(x)
Definition: mod2.h:387
The main handler for Singular numbers which are suitable for Singular polynomials.
#define NULL
Definition: omList.c:12
void Werror(const char *fmt,...)
Definition: reporter.cc:189
int ntIsParam(number m, const coeffs cf)
if m == var(i)/1 => return i,
Definition: transext.cc:2216

◆ nc_rComplete()

BOOLEAN nc_rComplete ( const ring  src,
ring  dest,
bool  bSetupQuotient 
)

Definition at line 5647 of file ring.cc.

5652 {
5653 // NOTE: Originally used only by idElimination to transfer NC structure to dest
5654 // ring created by dirty hack (without nc_CallPlural)
5655  rTest(src);
5656 
5657  assume(!rIsPluralRing(dest)); // destination must be a newly constructed commutative ring
5658 
5659  if (!rIsPluralRing(src))
5660  {
5661  return FALSE;
5662  }
5663 
5664  const int N = dest->N;
5665 
5666  assume(src->N == N);
5667 
5668 // ring save = currRing;
5669 
5670 // if (dest != save)
5671 // rChangeCurrRing(dest);
5672 
5673  const ring srcBase = src;
5674 
5675  assume( n_SetMap(srcBase->cf,dest->cf) == n_SetMap(dest->cf,dest->cf) ); // currRing is important here!
5676 
5677  matrix C = mpNew(N,N); // ring independent
5678  matrix D = mpNew(N,N);
5679 
5680  matrix C0 = src->GetNC()->C;
5681  matrix D0 = src->GetNC()->D;
5682 
5683  // map C and D into dest
5684  for (int i = 1; i < N; i++)
5685  {
5686  for (int j = i + 1; j <= N; j++)
5687  {
5688  const number n = n_Copy(p_GetCoeff(MATELEM(C0,i,j), srcBase), srcBase->cf); // src, mapping for coeffs into currRing = dest!
5689  const poly p = p_NSet(n, dest);
5690  MATELEM(C,i,j) = p;
5691  if (MATELEM(D0,i,j) != NULL)
5692  MATELEM(D,i,j) = prCopyR(MATELEM(D0,i,j), srcBase, dest); // ?
5693  }
5694  }
5695  /* One must test C and D _only_ in r->GetNC()->basering!!! not in r!!! */
5696 
5697  id_Test((ideal)C, dest);
5698  id_Test((ideal)D, dest);
5699 
5700  if (nc_CallPlural(C, D, NULL, NULL, dest, bSetupQuotient, false, true, dest)) // also takes care about quotient ideal
5701  {
5702  //WarnS("Error transferring non-commutative structure");
5703  // error message should be in the interpreter interface
5704 
5705  mp_Delete(&C, dest);
5706  mp_Delete(&D, dest);
5707 
5708 // if (currRing != save)
5709 // rChangeCurrRing(save);
5710 
5711  return TRUE;
5712  }
5713 
5714 // mp_Delete(&C, dest); // used by nc_CallPlural!
5715 // mp_Delete(&D, dest);
5716 
5717 // if (dest != save)
5718 // rChangeCurrRing(save);
5719 
5720  assume(rIsPluralRing(dest));
5721  return FALSE;
5722 }
#define TRUE
Definition: auxiliary.h:100
#define FALSE
Definition: auxiliary.h:96
const CanonicalForm CFMap CFMap & N
Definition: cfEzgcd.cc:56
static FORCE_INLINE number n_Copy(number n, const coeffs r)
return a copy of 'n'
Definition: coeffs.h:451
static FORCE_INLINE nMapFunc n_SetMap(const coeffs src, const coeffs dst)
set the mapping function pointers for translating numbers from src to dst
Definition: coeffs.h:700
int j
Definition: facHensel.cc:110
#define D(A)
Definition: gentable.cc:131
BOOLEAN nc_CallPlural(matrix cc, matrix dd, poly cn, poly dn, ring r, bool bSetupQuotient, bool bCopyInput, bool bBeQuiet, ring curr, bool dummy_ring=false)
returns TRUE if there were errors analyze inputs, check them for consistency detects nc_type,...
Definition: old.gring.cc:2682
void mp_Delete(matrix *a, const ring r)
Definition: matpol.cc:880
matrix mpNew(int r, int c)
create a r x c zero-matrix
Definition: matpol.cc:37
#define MATELEM(mat, i, j)
1-based access to matrix
Definition: matpol.h:29
#define p_GetCoeff(p, r)
Definition: monomials.h:50
poly p_NSet(number n, const ring r)
returns the poly representing the number n, destroys n
Definition: p_polys.cc:1465
poly prCopyR(poly p, ring src_r, ring dest_r)
Definition: prCopy.cc:34
static BOOLEAN rIsPluralRing(const ring r)
we must always have this test!
Definition: ring.h:400
#define rTest(r)
Definition: ring.h:786
#define id_Test(A, lR)
Definition: simpleideals.h:78

◆ nc_rCreateNCcomm_rCopy()

ring nc_rCreateNCcomm_rCopy ( ring  r)

Definition at line 717 of file ring.cc.

718 {
719  r = rCopy(r);
720  if (rIsPluralRing(r))
721  return r;
722 
723  matrix C = mpNew(r->N,r->N); // ring-independent!?!
724  matrix D = mpNew(r->N,r->N);
725 
726  for(int i=1; i<r->N; i++)
727  for(int j=i+1; j<=r->N; j++)
728  MATELEM(C,i,j) = p_One( r);
729 
730  if (nc_CallPlural(C, D, NULL, NULL, r, false, true, false, r/*??currRing??*/, TRUE)) // TODO: what about quotient ideal?
731  WarnS("Error initializing multiplication!"); // No reaction!???
732 
733  return r;
734 }
#define WarnS
Definition: emacs.cc:78
poly p_One(const ring r)
Definition: p_polys.cc:1309
ring rCopy(ring r)
Definition: ring.cc:1645

◆ p_DebugPrint()

void p_DebugPrint ( poly  p,
const ring  r 
)

Definition at line 4272 of file ring.cc.

4273 {
4274  int i,j;
4275  p_Write(p,r);
4276  j=2;
4277  while(p!=NULL)
4278  {
4279  Print("\nexp[0..%d]\n",r->ExpL_Size-1);
4280  for(i=0;i<r->ExpL_Size;i++)
4281  Print("%ld ",p->exp[i]);
4282  PrintLn();
4283  Print("v0:%ld ",p_GetComp(p, r));
4284  for(i=1;i<=r->N;i++) Print(" v%d:%ld",i,p_GetExp(p,i, r));
4285  PrintLn();
4286  pIter(p);
4287  j--;
4288  if (j==0) { PrintS("...\n"); break; }
4289  }
4290 }
#define pIter(p)
Definition: monomials.h:37
void p_Write(poly p, ring lmRing, ring tailRing)
Definition: polys0.cc:342
void PrintS(const char *s)
Definition: reporter.cc:284

◆ p_SetGlobals()

void p_SetGlobals ( const ring  r,
BOOLEAN  complete 
)

set all properties of a new ring - also called by rComplete

Definition at line 3360 of file ring.cc.

3361 {
3362 // // // if (r->ppNoether!=NULL) p_Delete(&r->ppNoether,r); // ???
3363 
3364  r->pLexOrder=r->LexOrder;
3365  if (complete)
3366  {
3368  si_opt_1 |= r->options;
3369  }
3370 }
VAR unsigned si_opt_1
Definition: options.c:5
#define TEST_RINGDEP_OPTS
Definition: options.h:100

◆ pISUpdateComponents()

void pISUpdateComponents ( ideal  F,
const intvec *const  V,
const int  MIN,
const ring  r 
)

Definition at line 4309 of file ring.cc.

4310 {
4311  assume( V != NULL );
4312  assume( MIN >= 0 );
4313 
4314  if( F == NULL )
4315  return;
4316 
4317  for( int j = (F->ncols*F->nrows) - 1; j >= 0; j-- )
4318  {
4319 #ifdef PDEBUG
4320  Print("F[%d]:", j);
4321  p_wrp(F->m[j], r);
4322 #endif
4323 
4324  for( poly p = F->m[j]; p != NULL; pIter(p) )
4325  {
4326  int c = p_GetComp(p, r);
4327 
4328  if( c > MIN )
4329  {
4330 #ifdef PDEBUG
4331  Print("gen[%d] -> gen(%d)\n", c, MIN + (*V)[ c - MIN - 1 ]);
4332 #endif
4333 
4334  p_SetComp( p, MIN + (*V)[ c - MIN - 1 ], r );
4335  }
4336  }
4337 #ifdef PDEBUG
4338  Print("new F[%d]:", j);
4339  p_Test(F->m[j], r);
4340  p_wrp(F->m[j], r);
4341 #endif
4342  }
4343 }
#define MIN(a, b)
Definition: omDebug.c:102
static unsigned long p_SetComp(poly p, unsigned long c, ring r)
Definition: p_polys.h:247
#define p_Test(p, r)
Definition: p_polys.h:162
void p_wrp(poly p, ring lmRing, ring tailRing)
Definition: polys0.cc:373

◆ r_IsRingVar()

int r_IsRingVar ( const char *  n,
char **  names,
int  N 
)

Definition at line 212 of file ring.cc.

213 {
214  if (names!=NULL)
215  {
216  for (int i=0; i<N; i++)
217  {
218  if (names[i]==NULL) return -1;
219  if (strcmp(n,names[i]) == 0) return (int)i;
220  }
221  }
222  return -1;
223 }

◆ rAssure_C_dp()

ring rAssure_C_dp ( const ring  r)

Definition at line 4926 of file ring.cc.

4927 {
4929 }
static ring rAssure_Global(rRingOrder_t b1, rRingOrder_t b2, const ring r)
Definition: ring.cc:4759
@ ringorder_C
Definition: ring.h:73
@ ringorder_dp
Definition: ring.h:78

◆ rAssure_c_dp()

ring rAssure_c_dp ( const ring  r)

Definition at line 4931 of file ring.cc.

4932 {
4934 }
@ ringorder_c
Definition: ring.h:72

◆ rAssure_CompLastBlock()

ring rAssure_CompLastBlock ( ring  r,
BOOLEAN  complete 
)

makes sure that c/C ordering is last ordering

Definition at line 4649 of file ring.cc.

4650 {
4651  int last_block = rBlocks(r) - 2;
4652  if (r->order[last_block] != ringorder_c &&
4653  r->order[last_block] != ringorder_C)
4654  {
4655  int c_pos = 0;
4656  int i;
4657 
4658  for (i=0; i< last_block; i++)
4659  {
4660  if (r->order[i] == ringorder_c || r->order[i] == ringorder_C)
4661  {
4662  c_pos = i;
4663  break;
4664  }
4665  }
4666  if (c_pos != -1)
4667  {
4668  ring new_r = rCopy0(r, FALSE, TRUE);
4669  for (i=c_pos+1; i<=last_block; i++)
4670  {
4671  new_r->order[i-1] = new_r->order[i];
4672  new_r->block0[i-1] = new_r->block0[i];
4673  new_r->block1[i-1] = new_r->block1[i];
4674  new_r->wvhdl[i-1] = new_r->wvhdl[i];
4675  }
4676  new_r->order[last_block] = r->order[c_pos];
4677  new_r->block0[last_block] = r->block0[c_pos];
4678  new_r->block1[last_block] = r->block1[c_pos];
4679  new_r->wvhdl[last_block] = r->wvhdl[c_pos];
4680  if (complete)
4681  {
4682  rComplete(new_r, 1);
4683 
4684 #ifdef HAVE_PLURAL
4685  if (rIsPluralRing(r))
4686  {
4687  if ( nc_rComplete(r, new_r, false) ) // no qideal!
4688  {
4689 #ifndef SING_NDEBUG
4690  WarnS("error in nc_rComplete"); // cleanup?// rDelete(res);// return r; // just go on..
4691 #endif
4692  }
4693  }
4694  assume(rIsPluralRing(r) == rIsPluralRing(new_r));
4695 #endif
4696  }
4697  return new_r;
4698  }
4699  }
4700  return r;
4701 }
BOOLEAN rComplete(ring r, int force)
this needs to be called whenever a new ring is created: new fields in ring are created (like VarOffse...
Definition: ring.cc:3395
BOOLEAN nc_rComplete(const ring src, ring dest, bool bSetupQuotient)
Definition: ring.cc:5647
ring rCopy0(const ring r, BOOLEAN copy_qideal, BOOLEAN copy_ordering)
Definition: ring.cc:1363
static int rBlocks(ring r)
Definition: ring.h:569

◆ rAssure_dp_C()

ring rAssure_dp_C ( const ring  r)

Definition at line 4921 of file ring.cc.

4922 {
4924 }

◆ rAssure_dp_S()

ring rAssure_dp_S ( const ring  r)

Definition at line 4916 of file ring.cc.

4917 {
4919 }
@ ringorder_S
S?
Definition: ring.h:75

◆ rAssure_Global()

static ring rAssure_Global ( rRingOrder_t  b1,
rRingOrder_t  b2,
const ring  r 
)
static

Definition at line 4759 of file ring.cc.

4760 {
4761  int r_blocks = rBlocks(r);
4762 
4763  assume(b1 == ringorder_c || b1 == ringorder_C ||
4764  b2 == ringorder_c || b2 == ringorder_C ||
4765  b2 == ringorder_S);
4766  if ((r_blocks == 3) &&
4767  (r->order[0] == b1) &&
4768  (r->order[1] == b2) &&
4769  (r->order[2] == 0))
4770  return r;
4771  ring res = rCopy0(r, FALSE, FALSE);
4772  res->order = (rRingOrder_t*)omAlloc0(3*sizeof(rRingOrder_t));
4773  res->block0 = (int*)omAlloc0(3*sizeof(int));
4774  res->block1 = (int*)omAlloc0(3*sizeof(int));
4775  res->wvhdl = (int**)omAlloc0(3*sizeof(int*));
4776  res->order[0] = b1;
4777  res->order[1] = b2;
4778  if (b1 == ringorder_c || b1 == ringorder_C)
4779  {
4780  res->block0[1] = 1;
4781  res->block1[1] = r->N;
4782  }
4783  else
4784  {
4785  res->block0[0] = 1;
4786  res->block1[0] = r->N;
4787  }
4788  rComplete(res, 1);
4789  if (r->qideal!=NULL) res->qideal= idrCopyR_NoSort(r->qideal, r, res);
4790 #ifdef HAVE_PLURAL
4791  if (rIsPluralRing(r))
4792  {
4793  if ( nc_rComplete(r, res, false) ) // no qideal!
4794  {
4795 #ifndef SING_NDEBUG
4796  WarnS("error in nc_rComplete");
4797 #endif
4798  }
4799  }
4800 #endif
4801 // rChangeCurrRing(res);
4802  return res;
4803 }
CanonicalForm res
Definition: facAbsFact.cc:60
#define omAlloc0(size)
Definition: omAllocDecl.h:211
ideal idrCopyR_NoSort(ideal id, ring src_r, ring dest_r)
Definition: prCopy.cc:204
rRingOrder_t
order stuff
Definition: ring.h:68

◆ rAssure_HasComp()

ring rAssure_HasComp ( const ring  r)

Definition at line 4594 of file ring.cc.

4595 {
4596  int last_block;
4597  int i=0;
4598  do
4599  {
4600  if (r->order[i] == ringorder_c ||
4601  r->order[i] == ringorder_C) return r;
4602  if (r->order[i] == 0)
4603  break;
4604  i++;
4605  } while (1);
4606  //WarnS("re-creating ring with comps");
4607  last_block=i-1;
4608 
4609  ring new_r = rCopy0(r, FALSE, FALSE);
4610  i+=2;
4611  new_r->wvhdl=(int **)omAlloc0(i * sizeof(int *));
4612  new_r->order = (rRingOrder_t *) omAlloc0(i * sizeof(rRingOrder_t));
4613  new_r->block0 = (int *) omAlloc0(i * sizeof(int));
4614  new_r->block1 = (int *) omAlloc0(i * sizeof(int));
4615  memcpy(new_r->order,r->order,(i-1) * sizeof(rRingOrder_t));
4616  memcpy(new_r->block0,r->block0,(i-1) * sizeof(int));
4617  memcpy(new_r->block1,r->block1,(i-1) * sizeof(int));
4618  for (int j=0; j<=last_block; j++)
4619  {
4620  if (r->wvhdl[j]!=NULL)
4621  {
4622  new_r->wvhdl[j] = (int*) omMemDup(r->wvhdl[j]);
4623  }
4624  }
4625  last_block++;
4626  new_r->order[last_block]=ringorder_C;
4627  //new_r->block0[last_block]=0;
4628  //new_r->block1[last_block]=0;
4629  //new_r->wvhdl[last_block]=NULL;
4630 
4631  rComplete(new_r, 1);
4632 
4633 #ifdef HAVE_PLURAL
4634  if (rIsPluralRing(r))
4635  {
4636  if ( nc_rComplete(r, new_r, false) ) // no qideal!
4637  {
4638 #ifndef SING_NDEBUG
4639  WarnS("error in nc_rComplete"); // cleanup?// rDelete(res);// return r; // just go on..
4640 #endif
4641  }
4642  }
4643  assume(rIsPluralRing(r) == rIsPluralRing(new_r));
4644 #endif
4645 
4646  return new_r;
4647 }
#define omMemDup(s)
Definition: omAllocDecl.h:264

◆ rAssure_InducedSchreyerOrdering()

ring rAssure_InducedSchreyerOrdering ( const ring  r,
BOOLEAN  complete,
int  sgn 
)

Definition at line 4805 of file ring.cc.

4806 { // TODO: ???? Add leading Syz-comp ordering here...????
4807 
4808 #if MYTEST
4809  Print("rAssure_InducedSchreyerOrdering(r, complete = %d, sgn = %d): r: \n", complete, sgn);
4810  rWrite(r);
4811 #ifdef RDEBUG
4812  rDebugPrint(r);
4813 #endif
4814  PrintLn();
4815 #endif
4816  assume((sgn == 1) || (sgn == -1));
4817 
4818  ring res=rCopy0(r, FALSE, FALSE); // No qideal & ordering copy.
4819 
4820  int n = rBlocks(r); // Including trailing zero!
4821 
4822  // Create 2 more blocks for prefix/suffix:
4823  res->order=(rRingOrder_t *)omAlloc0((n+2)*sizeof(rRingOrder_t)); // 0 .. n+1
4824  res->block0=(int *)omAlloc0((n+2)*sizeof(int));
4825  res->block1=(int *)omAlloc0((n+2)*sizeof(int));
4826  int ** wvhdl =(int **)omAlloc0((n+2)*sizeof(int**));
4827 
4828  // Encapsulate all existing blocks between induced Schreyer ordering markers: prefix and suffix!
4829  // Note that prefix and suffix have the same ringorder marker and only differ in block[] parameters!
4830 
4831  // new 1st block
4832  int j = 0;
4833  res->order[j] = ringorder_IS; // Prefix
4834  res->block0[j] = res->block1[j] = 0;
4835  // wvhdl[j] = NULL;
4836  j++;
4837 
4838  for(int i = 0; (i <= n) && (r->order[i] != 0); i++, j++) // i = [0 .. n-1] <- non-zero old blocks
4839  {
4840  res->order [j] = r->order [i];
4841  res->block0[j] = r->block0[i];
4842  res->block1[j] = r->block1[i];
4843 
4844  if (r->wvhdl[i] != NULL)
4845  {
4846  wvhdl[j] = (int*) omMemDup(r->wvhdl[i]);
4847  } // else wvhdl[j] = NULL;
4848  }
4849 
4850  // new last block
4851  res->order [j] = ringorder_IS; // Suffix
4852  res->block0[j] = res->block1[j] = sgn; // Sign of v[o]: 1 for C, -1 for c
4853  // wvhdl[j] = NULL;
4854  j++;
4855 
4856  // res->order [j] = 0; // The End!
4857  res->wvhdl = wvhdl;
4858 
4859  // j == the last zero block now!
4860  assume(j == (n+1));
4861  assume(res->order[0]==ringorder_IS);
4862  assume(res->order[j-1]==ringorder_IS);
4863  assume(res->order[j]==0);
4864 
4865 
4866  if (complete)
4867  {
4868  rComplete(res, 1);
4869 
4870 #ifdef HAVE_PLURAL
4871  if (rIsPluralRing(r))
4872  {
4873  if ( nc_rComplete(r, res, false) ) // no qideal!
4874  {
4875 #ifndef SING_NDEBUG
4876  WarnS("error in nc_rComplete"); // cleanup?// rDelete(res);// return r; // just go on..
4877 #endif
4878  }
4879  }
4881 #endif
4882 
4883 
4884 #ifdef HAVE_PLURAL
4885  ring old_ring = r;
4886 #endif
4887 
4888  if (r->qideal!=NULL)
4889  {
4890  res->qideal= idrCopyR_NoSort(r->qideal, r, res);
4891 
4892  assume(id_RankFreeModule(res->qideal, res) == 0);
4893 
4894 #ifdef HAVE_PLURAL
4895  if( rIsPluralRing(res) )
4896  if( nc_SetupQuotient(res, r, true) )
4897  {
4898 // WarnS("error in nc_SetupQuotient"); // cleanup? rDelete(res); return r; // just go on...?
4899  }
4900 
4901 #endif
4902  assume(id_RankFreeModule(res->qideal, res) == 0);
4903  }
4904 
4905 #ifdef HAVE_PLURAL
4906  assume((res->qideal==NULL) == (old_ring->qideal==NULL));
4907  assume(rIsPluralRing(res) == rIsPluralRing(old_ring));
4908  assume(rIsSCA(res) == rIsSCA(old_ring));
4909  assume(ncRingType(res) == ncRingType(old_ring));
4910 #endif
4911  }
4912 
4913  return res;
4914 }
int sgn(const Rational &a)
Definition: GMPrat.cc:430
static bool rIsSCA(const ring r)
Definition: nc.h:190
bool nc_SetupQuotient(ring rGR, const ring rG=NULL, bool bCopy=false)
Definition: old.gring.cc:3403
static nc_type & ncRingType(nc_struct *p)
Definition: nc.h:159
void rWrite(ring r, BOOLEAN details)
Definition: ring.cc:226
void rDebugPrint(const ring r)
Definition: ring.cc:4067
@ ringorder_IS
Induced (Schreyer) ordering.
Definition: ring.h:93
long id_RankFreeModule(ideal s, ring lmRing, ring tailRing)
return the maximal component number found in any polynomial in s

◆ rAssure_SyzComp()

ring rAssure_SyzComp ( const ring  r,
BOOLEAN  complete 
)

Definition at line 4418 of file ring.cc.

4419 {
4420  if ( r->order[0] == ringorder_s ) return r;
4421 
4422  if ( r->order[0] == ringorder_IS )
4423  {
4424 #ifndef SING_NDEBUG
4425  WarnS("rAssure_SyzComp: input ring has an IS-ordering!");
4426 #endif
4427 // return r;
4428  }
4429  ring res=rCopy0(r, FALSE, FALSE);
4430  int i=rBlocks(r);
4431  int j;
4432 
4433  res->order=(rRingOrder_t *)omAlloc((i+1)*sizeof(rRingOrder_t));
4434  res->block0=(int *)omAlloc0((i+1)*sizeof(int));
4435  res->block1=(int *)omAlloc0((i+1)*sizeof(int));
4436  int ** wvhdl =(int **)omAlloc0((i+1)*sizeof(int**));
4437  for(j=i;j>0;j--)
4438  {
4439  res->order[j]=r->order[j-1];
4440  res->block0[j]=r->block0[j-1];
4441  res->block1[j]=r->block1[j-1];
4442  if (r->wvhdl[j-1] != NULL)
4443  {
4444  wvhdl[j] = (int*) omMemDup(r->wvhdl[j-1]);
4445  }
4446  }
4447  res->order[0]=ringorder_s;
4448 
4449  res->wvhdl = wvhdl;
4450 
4451  if (complete)
4452  {
4453  rComplete(res, 1);
4454 #ifdef HAVE_PLURAL
4455  if (rIsPluralRing(r))
4456  {
4457  if ( nc_rComplete(r, res, false) ) // no qideal!
4458  {
4459 #ifndef SING_NDEBUG
4460  WarnS("error in nc_rComplete"); // cleanup?// rDelete(res);// return r; // just go on..
4461 #endif
4462  }
4463  }
4465 #endif
4466 
4467 #ifdef HAVE_PLURAL
4468  ring old_ring = r;
4469 #endif
4470  if (r->qideal!=NULL)
4471  {
4472  res->qideal= idrCopyR_NoSort(r->qideal, r, res);
4473  assume(id_RankFreeModule(res->qideal, res) == 0);
4474 #ifdef HAVE_PLURAL
4475  if( rIsPluralRing(res) )
4476  {
4477  if( nc_SetupQuotient(res, r, true) )
4478  {
4479 // WarnS("error in nc_SetupQuotient"); // cleanup? rDelete(res); return r; // just go on...?
4480  }
4481  assume(id_RankFreeModule(res->qideal, res) == 0);
4482  }
4483 #endif
4484  }
4485 
4486 #ifdef HAVE_PLURAL
4487  assume((res->qideal==NULL) == (old_ring->qideal==NULL));
4488  assume(rIsPluralRing(res) == rIsPluralRing(old_ring));
4489  assume(rIsSCA(res) == rIsSCA(old_ring));
4490  assume(ncRingType(res) == ncRingType(old_ring));
4491 #endif
4492  }
4493  return res;
4494 }
#define omAlloc(size)
Definition: omAllocDecl.h:210
@ ringorder_s
s?
Definition: ring.h:76

◆ rAssure_SyzComp_CompLastBlock()

ring rAssure_SyzComp_CompLastBlock ( const ring  r)

makes sure that c/C ordering is last ordering and SyzIndex is first

? rChangeCurrRing(new_r);

Definition at line 4704 of file ring.cc.

4705 {
4706  rTest(r);
4707 
4708  ring new_r_1 = rAssure_CompLastBlock(r, FALSE); // due to this FALSE - no completion!
4709  ring new_r = rAssure_SyzComp(new_r_1, FALSE); // new_r_1 is used only here!!!
4710 
4711  if (new_r == r)
4712  return r;
4713 
4714  ring old_r = r;
4715  if (new_r_1 != new_r && new_r_1 != old_r) rDelete(new_r_1);
4716 
4717  rComplete(new_r, TRUE);
4718 #ifdef HAVE_PLURAL
4719  if (rIsPluralRing(old_r))
4720  {
4721  if ( nc_rComplete(old_r, new_r, false) ) // no qideal!
4722  {
4723 # ifndef SING_NDEBUG
4724  WarnS("error in nc_rComplete"); // cleanup? rDelete(res); return r; // just go on...?
4725 # endif
4726  }
4727  }
4728 #endif
4729 
4730 ///? rChangeCurrRing(new_r);
4731  if (old_r->qideal != NULL)
4732  {
4733  new_r->qideal = idrCopyR(old_r->qideal, old_r, new_r);
4734  }
4735 
4736 #ifdef HAVE_PLURAL
4737  if( rIsPluralRing(old_r) )
4738  if( nc_SetupQuotient(new_r, old_r, true) )
4739  {
4740 #ifndef SING_NDEBUG
4741  WarnS("error in nc_SetupQuotient"); // cleanup? rDelete(res); return r; // just go on...?
4742 #endif
4743  }
4744 #endif
4745 
4746 #ifdef HAVE_PLURAL
4747  assume((new_r->qideal==NULL) == (old_r->qideal==NULL));
4748  assume(rIsPluralRing(new_r) == rIsPluralRing(old_r));
4749  assume(rIsSCA(new_r) == rIsSCA(old_r));
4750  assume(ncRingType(new_r) == ncRingType(old_r));
4751 #endif
4752 
4753  rTest(new_r);
4754  rTest(old_r);
4755  return new_r;
4756 }
ideal idrCopyR(ideal id, ring src_r, ring dest_r)
Definition: prCopy.cc:191
ring rAssure_SyzComp(const ring r, BOOLEAN complete)
Definition: ring.cc:4418
void rDelete(ring r)
unconditionally deletes fields in r
Definition: ring.cc:449
ring rAssure_CompLastBlock(ring r, BOOLEAN complete)
makes sure that c/C ordering is last ordering
Definition: ring.cc:4649

◆ rAssure_SyzOrder()

ring rAssure_SyzOrder ( const ring  r,
BOOLEAN  complete 
)

Definition at line 4413 of file ring.cc.

4414 {
4415  if ( r->order[0] == ringorder_c ) return r;
4416  return rAssure_SyzComp(r,complete);
4417 }

◆ rAssure_TDeg()

ring rAssure_TDeg ( ring  r,
int &  pos 
)

Definition at line 4496 of file ring.cc.

4497 {
4498  if (r->N==1) // special: dp(1)==lp(1)== no entry in typ
4499  {
4500  pos=r->VarL_LowIndex;
4501  return r;
4502  }
4503  if (r->typ!=NULL)
4504  {
4505  for(int i=r->OrdSize-1;i>=0;i--)
4506  {
4507  if ((r->typ[i].ord_typ==ro_dp)
4508  && (r->typ[i].data.dp.start==1)
4509  && (r->typ[i].data.dp.end==r->N))
4510  {
4511  pos=r->typ[i].data.dp.place;
4512  //printf("no change, pos=%d\n",pos);
4513  return r;
4514  }
4515  }
4516  }
4517 
4518 #ifdef HAVE_PLURAL
4519  nc_struct* save=r->GetNC();
4520  r->GetNC()=NULL;
4521 #endif
4522  ring res=rCopy(r);
4523  if (res->qideal!=NULL)
4524  {
4525  id_Delete(&res->qideal,r);
4526  }
4527 
4528  int j;
4529 
4530  res->ExpL_Size=r->ExpL_Size+1; // one word more in each monom
4531  res->PolyBin=omGetSpecBin(POLYSIZE + (res->ExpL_Size)*sizeof(long));
4532  omFree((ADDRESS)res->ordsgn);
4533  res->ordsgn=(long *)omAlloc0(res->ExpL_Size*sizeof(long));
4534  for(j=0;j<r->CmpL_Size;j++)
4535  {
4536  res->ordsgn[j] = r->ordsgn[j];
4537  }
4538  res->OrdSize=r->OrdSize+1; // one block more for pSetm
4539  if (r->typ!=NULL)
4540  omFree((ADDRESS)res->typ);
4541  res->typ=(sro_ord*)omAlloc0(res->OrdSize*sizeof(sro_ord));
4542  if (r->typ!=NULL)
4543  memcpy(res->typ,r->typ,r->OrdSize*sizeof(sro_ord));
4544  // the additional block for pSetm: total degree at the last word
4545  // but not included in the compare part
4546  res->typ[res->OrdSize-1].ord_typ=ro_dp;
4547  res->typ[res->OrdSize-1].data.dp.start=1;
4548  res->typ[res->OrdSize-1].data.dp.end=res->N;
4549  res->typ[res->OrdSize-1].data.dp.place=res->ExpL_Size-1;
4550  pos=res->ExpL_Size-1;
4551  //res->pOrdIndex=pos; //NO: think of a(1,0),dp !
4552  extern void p_Setm_General(poly p, ring r);
4553  res->p_Setm=p_Setm_General;
4554  // ----------------------------
4555  omFree((ADDRESS)res->p_Procs);
4556  res->p_Procs = (p_Procs_s*)omAlloc(sizeof(p_Procs_s));
4557 
4558  p_ProcsSet(res, res->p_Procs);
4559 #ifdef HAVE_PLURAL
4560  r->GetNC()=save;
4561  if (rIsPluralRing(r))
4562  {
4563  if ( nc_rComplete(r, res, false) ) // no qideal!
4564  {
4565 #ifndef SING_NDEBUG
4566  WarnS("error in nc_rComplete");
4567 #endif
4568  // just go on..
4569  }
4570  }
4571 #endif
4572  if (r->qideal!=NULL)
4573  {
4574  res->qideal=idrCopyR_NoSort(r->qideal,r, res);
4575 #ifdef HAVE_PLURAL
4576  if (rIsPluralRing(res))
4577  {
4578 // nc_SetupQuotient(res, currRing);
4579  nc_SetupQuotient(res, r); // ?
4580  }
4581  assume((res->qideal==NULL) == (r->qideal==NULL));
4582 #endif
4583  }
4584 
4585 #ifdef HAVE_PLURAL
4587  assume(rIsSCA(res) == rIsSCA(r));
4588  assume(ncRingType(res) == ncRingType(r));
4589 #endif
4590 
4591  return res;
4592 }
void * ADDRESS
Definition: auxiliary.h:119
#define POLYSIZE
Definition: monomials.h:233
#define omFree(addr)
Definition: omAllocDecl.h:261
#define omGetSpecBin(size)
Definition: omBin.h:11
void p_ProcsSet(ring r, p_Procs_s *p_Procs)
Definition: p_Procs_Set.h:141
void p_Setm_General(poly p, const ring r)
Definition: p_polys.cc:158
struct p_Procs_s p_Procs_s
Definition: ring.h:23
@ ro_dp
Definition: ring.h:52
Definition: ring.h:219
void id_Delete(ideal *h, ring r)
deletes an ideal/module/matrix
Definition: nc.h:68

◆ rChangeSComps()

void rChangeSComps ( int *  currComponents,
long *  currShiftedComponents,
int  length,
ring  r 
)

Definition at line 4388 of file ring.cc.

4389 {
4390 #ifdef PDEBUG
4391  rDBChangeSComps(currComponents, currShiftedComponents, length, r);
4392 #else
4393  rNChangeSComps(currComponents, currShiftedComponents, r);
4394 #endif
4395 }
static BOOLEAN length(leftv result, leftv arg)
Definition: interval.cc:257
static void rNChangeSComps(int *currComponents, long *currShiftedComponents, ring r)
Definition: ring.cc:4350
static void rDBChangeSComps(int *currComponents, long *currShiftedComponents, int length, ring r)
Definition: ring.cc:4366
EXTERN_VAR long * currShiftedComponents
Definition: syz.h:118

◆ rChar()

int rChar ( ring  r)

Definition at line 711 of file ring.cc.

711 { return r->cf->ch; }

◆ rCharStr()

char* rCharStr ( const ring  r)

TODO: make it a virtual method of coeffs, together with: Decompose & Compose, rParameter & rPar.

Definition at line 645 of file ring.cc.

645 { assume( r != NULL ); return nCoeffString(r->cf); }
static FORCE_INLINE char * nCoeffString(const coeffs cf)
TODO: make it a virtual method of coeffs, together with: Decompose & Compose, rParameter & rPar.
Definition: coeffs.h:959

◆ rCheckIV()

BOOLEAN rCheckIV ( const intvec iv)

Definition at line 175 of file ring.cc.

176 {
177  if ((iv->length()!=2)&&(iv->length()!=3))
178  {
179  WerrorS("weights only for orderings wp,ws,Wp,Ws,a,M");
180  return TRUE;
181  }
182  return FALSE;
183 }
int length() const
Definition: intvec.h:94
void WerrorS(const char *s)
Definition: feFopen.cc:24

◆ rCheckOrdSgn()

static void rCheckOrdSgn ( ring  r,
int  i 
)
static

Definition at line 3797 of file ring.cc.

3798 { // set r->OrdSgn, r->MixedOrder
3799  // for each variable:
3800  int nonpos=0;
3801  int nonneg=0;
3802  for(int i=1;i<=r->N;i++)
3803  {
3804  int found=0;
3805  // for all blocks:
3806  for(int j=0;(j<=b) && (found==0);j++)
3807  {
3808  // search the first block containing var(i)
3809  if ((r->block0[j]<=i)&&(r->block1[j]>=i))
3810  {
3811  // what kind if block is it?
3812  if ((r->order[j]==ringorder_ls)
3813  || (r->order[j]==ringorder_ds)
3814  || (r->order[j]==ringorder_Ds)
3815  || (r->order[j]==ringorder_ws)
3816  || (r->order[j]==ringorder_Ws)
3817  || (r->order[j]==ringorder_rs))
3818  {
3819  r->OrdSgn=-1;
3820  nonpos++;
3821  found=1;
3822  }
3823  else if((r->order[j]==ringorder_a)
3824  ||(r->order[j]==ringorder_aa))
3825  {
3826  // <0: local/mixed ordering
3827  // >0: var(i) is okay, look at other vars
3828  // ==0: look at other blocks for var(i)
3829  if(r->wvhdl[j][i-r->block0[j]]<0)
3830  {
3831  r->OrdSgn=-1;
3832  nonpos++;
3833  found=1;
3834  }
3835  else if(r->wvhdl[j][i-r->block0[j]]>0)
3836  {
3837  nonneg++;
3838  found=1;
3839  }
3840  }
3841  else if(r->order[j]==ringorder_M)
3842  {
3843  // <0: local/mixed ordering
3844  // >0: var(i) is okay, look at other vars
3845  // ==0: look at other blocks for var(i)
3846  if(r->wvhdl[j][i-r->block0[j]]<0)
3847  {
3848  r->OrdSgn=-1;
3849  nonpos++;
3850  found=1;
3851  }
3852  else if(r->wvhdl[j][i-r->block0[j]]>0)
3853  {
3854  nonneg++;
3855  found=1;
3856  }
3857  else
3858  {
3859  // very bad: try next row(s)
3860  int add=r->block1[j]-r->block0[j]+1;
3861  int max_i=r->block0[j]+add*add-add-1;
3862  while(found==0)
3863  {
3864  i+=add;
3865  if (r->wvhdl[j][i-r->block0[j]]<0)
3866  {
3867  r->OrdSgn=-1;
3868  nonpos++;
3869  found=1;
3870  }
3871  else if(r->wvhdl[j][i-r->block0[j]]>0)
3872  {
3873  nonneg++;
3874  found=1;
3875  }
3876  else if(i>max_i)
3877  {
3878  nonpos++;
3879  nonneg++;
3880  found=1;
3881  }
3882  }
3883  }
3884  }
3885  else if ((r->order[j]==ringorder_lp)
3886  || (r->order[j]==ringorder_dp)
3887  || (r->order[j]==ringorder_Dp)
3888  || (r->order[j]==ringorder_wp)
3889  || (r->order[j]==ringorder_Wp)
3890  || (r->order[j]==ringorder_rp))
3891  {
3892  found=1;
3893  nonneg++;
3894  }
3895  }
3896  }
3897  }
3898  if (nonpos>0)
3899  {
3900  r->OrdSgn=-1;
3901  if (nonneg>0) r->MixedOrder=1;
3902  }
3903  else
3904  {
3905  r->OrdSgn=1;
3906  r->MixedOrder=0;
3907  }
3908 }
CanonicalForm b
Definition: cfModGcd.cc:4103
bool found
Definition: facFactorize.cc:55
STATIC_VAR unsigned add[]
Definition: misc_ip.cc:111
@ ringorder_lp
Definition: ring.h:77
@ ringorder_a
Definition: ring.h:70
@ ringorder_rs
opposite of ls
Definition: ring.h:92
@ ringorder_ds
Definition: ring.h:84
@ ringorder_Dp
Definition: ring.h:80
@ ringorder_Ds
Definition: ring.h:85
@ ringorder_rp
Definition: ring.h:79
@ ringorder_aa
for idElimination, like a, except pFDeg, pWeigths ignore it
Definition: ring.h:91
@ ringorder_Wp
Definition: ring.h:82
@ ringorder_ws
Definition: ring.h:86
@ ringorder_Ws
Definition: ring.h:87
@ ringorder_ls
Definition: ring.h:83
@ ringorder_wp
Definition: ring.h:81
@ ringorder_M
Definition: ring.h:74

◆ rComplete()

BOOLEAN rComplete ( ring  r,
int  force 
)

this needs to be called whenever a new ring is created: new fields in ring are created (like VarOffset), unless they already exist with force == 1, new fields are always created (overwritten), even if they exist

Definition at line 3395 of file ring.cc.

3396 {
3397  if (r->VarOffset!=NULL && force == 0) return FALSE;
3398  rSetOutParams(r);
3399  int n=rBlocks(r)-1;
3400  int i;
3401  int bits;
3402  r->bitmask=rGetExpSize(r->wanted_maxExp,bits,r->N);
3403  r->BitsPerExp = bits;
3404  r->ExpPerLong = BIT_SIZEOF_LONG / bits;
3405  r->divmask=rGetDivMask(bits);
3406 
3407  // will be used for ordsgn:
3408  long *tmp_ordsgn=(long *)omAlloc0(3*(n+r->N)*sizeof(long));
3409  // will be used for VarOffset:
3410  int *v=(int *)omAlloc((r->N+1)*sizeof(int));
3411  for(i=r->N; i>=0 ; i--)
3412  {
3413  v[i]=-1;
3414  }
3415  sro_ord *tmp_typ=(sro_ord *)omAlloc0(3*(n+r->N)*sizeof(sro_ord));
3416  int typ_i=0;
3417  int prev_ordsgn=0;
3418 
3419  // fill in v, tmp_typ, tmp_ordsgn, determine typ_i (== ordSize)
3420  int j=0;
3421  int j_bits=BITS_PER_LONG;
3422 
3423  BOOLEAN need_to_add_comp=FALSE; // Only for ringorder_s and ringorder_S!
3424 
3425  for(i=0;i<n;i++)
3426  {
3427  tmp_typ[typ_i].order_index=i;
3428  switch (r->order[i])
3429  {
3430  case ringorder_a:
3431  case ringorder_aa:
3432  rO_WDegree(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,tmp_typ[typ_i],
3433  r->wvhdl[i]);
3434  typ_i++;
3435  break;
3436 
3437  case ringorder_am:
3438  rO_WMDegree(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,tmp_typ[typ_i],
3439  r->wvhdl[i]);
3440  typ_i++;
3441  break;
3442 
3443  case ringorder_a64:
3444  rO_WDegree64(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,
3445  tmp_typ[typ_i], (int64 *)(r->wvhdl[i]));
3446  typ_i++;
3447  break;
3448 
3449  case ringorder_c:
3450  rO_Align(j, j_bits);
3451  rO_LexVars_neg(j, j_bits, 0,0, prev_ordsgn,tmp_ordsgn,v,BITS_PER_LONG, -1);
3452  r->ComponentOrder=1;
3453  break;
3454 
3455  case ringorder_C:
3456  rO_Align(j, j_bits);
3457  rO_LexVars(j, j_bits, 0,0, prev_ordsgn,tmp_ordsgn,v,BITS_PER_LONG, -1);
3458  r->ComponentOrder=-1;
3459  break;
3460 
3461  case ringorder_M:
3462  {
3463  int k,l;
3464  k=r->block1[i]-r->block0[i]+1; // number of vars
3465  for(l=0;l<k;l++)
3466  {
3467  rO_WDegree(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,
3468  tmp_typ[typ_i],
3469  r->wvhdl[i]+(r->block1[i]-r->block0[i]+1)*l);
3470  typ_i++;
3471  }
3472  break;
3473  }
3474 
3475  case ringorder_lp:
3476  rO_LexVars(j, j_bits, r->block0[i],r->block1[i], prev_ordsgn,
3477  tmp_ordsgn,v,bits, -1);
3478  break;
3479 
3480  case ringorder_ls:
3481  rO_LexVars_neg(j, j_bits, r->block0[i],r->block1[i], prev_ordsgn,
3482  tmp_ordsgn,v, bits, -1);
3483  break;
3484 
3485  case ringorder_rs:
3486  rO_LexVars_neg(j, j_bits, r->block1[i],r->block0[i], prev_ordsgn,
3487  tmp_ordsgn,v, bits, -1);
3488  break;
3489 
3490  case ringorder_rp:
3491  rO_LexVars(j, j_bits, r->block1[i],r->block0[i], prev_ordsgn,
3492  tmp_ordsgn,v, bits, -1);
3493  break;
3494 
3495  case ringorder_dp:
3496  if (r->block0[i]==r->block1[i])
3497  {
3498  rO_LexVars(j, j_bits, r->block0[i],r->block0[i], prev_ordsgn,
3499  tmp_ordsgn,v, bits, -1);
3500  }
3501  else
3502  {
3503  rO_TDegree(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,
3504  tmp_typ[typ_i]);
3505  typ_i++;
3506  rO_LexVars_neg(j, j_bits, r->block1[i],r->block0[i]+1,
3507  prev_ordsgn,tmp_ordsgn,v,bits, r->block0[i]);
3508  }
3509  break;
3510 
3511  case ringorder_Dp:
3512  if (r->block0[i]==r->block1[i])
3513  {
3514  rO_LexVars(j, j_bits, r->block0[i],r->block0[i], prev_ordsgn,
3515  tmp_ordsgn,v, bits, -1);
3516  }
3517  else
3518  {
3519  rO_TDegree(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,
3520  tmp_typ[typ_i]);
3521  typ_i++;
3522  rO_LexVars(j, j_bits, r->block0[i],r->block1[i]-1, prev_ordsgn,
3523  tmp_ordsgn,v, bits, r->block1[i]);
3524  }
3525  break;
3526 
3527  case ringorder_ds:
3528  if (r->block0[i]==r->block1[i])
3529  {
3530  rO_LexVars_neg(j, j_bits,r->block0[i],r->block1[i],prev_ordsgn,
3531  tmp_ordsgn,v,bits, -1);
3532  }
3533  else
3534  {
3535  rO_TDegree_neg(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,
3536  tmp_typ[typ_i]);
3537  typ_i++;
3538  rO_LexVars_neg(j, j_bits, r->block1[i],r->block0[i]+1,
3539  prev_ordsgn,tmp_ordsgn,v,bits, r->block0[i]);
3540  }
3541  break;
3542 
3543  case ringorder_Ds:
3544  if (r->block0[i]==r->block1[i])
3545  {
3546  rO_LexVars_neg(j, j_bits, r->block0[i],r->block0[i],prev_ordsgn,
3547  tmp_ordsgn,v, bits, -1);
3548  }
3549  else
3550  {
3551  rO_TDegree_neg(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,
3552  tmp_typ[typ_i]);
3553  typ_i++;
3554  rO_LexVars(j, j_bits, r->block0[i],r->block1[i]-1, prev_ordsgn,
3555  tmp_ordsgn,v, bits, r->block1[i]);
3556  }
3557  break;
3558 
3559  case ringorder_wp:
3560  rO_WDegree(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,
3561  tmp_typ[typ_i], r->wvhdl[i]);
3562  typ_i++;
3563  { // check for weights <=0
3564  int jj;
3565  BOOLEAN have_bad_weights=FALSE;
3566  for(jj=r->block1[i]-r->block0[i];jj>=0; jj--)
3567  {
3568  if (r->wvhdl[i][jj]<=0) have_bad_weights=TRUE;
3569  }
3570  if (have_bad_weights)
3571  {
3572  rO_TDegree(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,
3573  tmp_typ[typ_i]);
3574  typ_i++;
3575  }
3576  }
3577  if (r->block1[i]!=r->block0[i])
3578  {
3579  rO_LexVars_neg(j, j_bits,r->block1[i],r->block0[i]+1, prev_ordsgn,
3580  tmp_ordsgn, v,bits, r->block0[i]);
3581  }
3582  break;
3583 
3584  case ringorder_Wp:
3585  rO_WDegree(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,
3586  tmp_typ[typ_i], r->wvhdl[i]);
3587  typ_i++;
3588  { // check for weights <=0
3589  int jj;
3590  BOOLEAN have_bad_weights=FALSE;
3591  for(jj=r->block1[i]-r->block0[i];jj>=0; jj--)
3592  {
3593  if (r->wvhdl[i][jj]<=0) have_bad_weights=TRUE;
3594  }
3595  if (have_bad_weights)
3596  {
3597  rO_TDegree(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,
3598  tmp_typ[typ_i]);
3599  typ_i++;
3600  }
3601  }
3602  if (r->block1[i]!=r->block0[i])
3603  {
3604  rO_LexVars(j, j_bits,r->block0[i],r->block1[i]-1, prev_ordsgn,
3605  tmp_ordsgn,v, bits, r->block1[i]);
3606  }
3607  break;
3608 
3609  case ringorder_ws:
3610  rO_WDegree_neg(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,
3611  tmp_typ[typ_i], r->wvhdl[i]);
3612  typ_i++;
3613  if (r->block1[i]!=r->block0[i])
3614  {
3615  rO_LexVars_neg(j, j_bits,r->block1[i],r->block0[i]+1, prev_ordsgn,
3616  tmp_ordsgn, v,bits, r->block0[i]);
3617  }
3618  break;
3619 
3620  case ringorder_Ws:
3621  rO_WDegree_neg(j,j_bits,r->block0[i],r->block1[i],tmp_ordsgn,
3622  tmp_typ[typ_i], r->wvhdl[i]);
3623  typ_i++;
3624  if (r->block1[i]!=r->block0[i])
3625  {
3626  rO_LexVars(j, j_bits,r->block0[i],r->block1[i]-1, prev_ordsgn,
3627  tmp_ordsgn,v, bits, r->block1[i]);
3628  }
3629  break;
3630 
3631  case ringorder_S:
3632  assume(typ_i == 1); // For LaScala3 only: on the 2nd place ([1])!
3633  // TODO: for K[x]: it is 0...?!
3634  rO_Syzcomp(j, j_bits,prev_ordsgn, tmp_ordsgn,tmp_typ[typ_i]);
3635  need_to_add_comp=TRUE;
3636  r->ComponentOrder=-1;
3637  typ_i++;
3638  break;
3639 
3640  case ringorder_s:
3641  assume(typ_i == 0 && j == 0);
3642  rO_Syz(j, j_bits, prev_ordsgn, r->block0[i], tmp_ordsgn, tmp_typ[typ_i]); // set syz-limit?
3643  need_to_add_comp=TRUE;
3644  r->ComponentOrder=-1;
3645  typ_i++;
3646  break;
3647 
3648  case ringorder_IS:
3649  {
3650 
3651  assume( r->block0[i] == r->block1[i] );
3652  const int s = r->block0[i];
3653  assume( -2 < s && s < 2);
3654 
3655  if(s == 0) // Prefix IS
3656  rO_ISPrefix(j, j_bits, prev_ordsgn, tmp_ordsgn, r->N, v, tmp_typ[typ_i++]); // What about prev_ordsgn?
3657  else // s = +1 or -1 // Note: typ_i might be incrimented here inside!
3658  {
3659  rO_ISSuffix(j, j_bits, prev_ordsgn, tmp_ordsgn, r->N, v, tmp_typ, typ_i, s); // Suffix.
3660  need_to_add_comp=FALSE;
3661  }
3662 
3663  break;
3664  }
3665  case ringorder_unspec:
3666  case ringorder_no:
3667  default:
3668  dReportError("undef. ringorder used\n");
3669  break;
3670  }
3671  }
3672  rCheckOrdSgn(r,n-1);
3673 
3674  int j0=j; // save j
3675  int j_bits0=j_bits; // save jbits
3676  rO_Align(j,j_bits);
3677  r->CmpL_Size = j;
3678 
3679  j_bits=j_bits0; j=j0;
3680 
3681  // fill in some empty slots with variables not already covered
3682  // v0 is special, is therefore normally already covered
3683  // now we do have rings without comp...
3684  if((need_to_add_comp) && (v[0]== -1))
3685  {
3686  if (prev_ordsgn==1)
3687  {
3688  rO_Align(j, j_bits);
3689  rO_LexVars(j, j_bits, 0,0, prev_ordsgn,tmp_ordsgn,v,BITS_PER_LONG, -1);
3690  }
3691  else
3692  {
3693  rO_Align(j, j_bits);
3694  rO_LexVars_neg(j, j_bits, 0,0, prev_ordsgn,tmp_ordsgn,v,BITS_PER_LONG, -1);
3695  }
3696  }
3697  // the variables
3698  for(i=1 ; i<=r->N ; i++)
3699  {
3700  if(v[i]==(-1))
3701  {
3702  if (prev_ordsgn==1)
3703  {
3704  rO_LexVars(j, j_bits, i,i, prev_ordsgn,tmp_ordsgn,v,bits, -1);
3705  }
3706  else
3707  {
3708  rO_LexVars_neg(j,j_bits,i,i, prev_ordsgn,tmp_ordsgn,v,bits, -1);
3709  }
3710  }
3711  }
3712 
3713  rO_Align(j,j_bits);
3714  // ----------------------------
3715  // finished with constructing the monomial, computing sizes:
3716 
3717  r->ExpL_Size=j;
3718  r->PolyBin = omGetSpecBin(POLYSIZE + (r->ExpL_Size)*sizeof(long));
3719  assume(r->PolyBin != NULL);
3720 
3721  // ----------------------------
3722  // indices and ordsgn vector for comparison
3723  //
3724  // r->pCompHighIndex already set
3725  r->ordsgn=(long *)omAlloc0(r->ExpL_Size*sizeof(long));
3726 
3727  for(j=0;j<r->CmpL_Size;j++)
3728  {
3729  r->ordsgn[j] = tmp_ordsgn[j];
3730  }
3731 
3732  omFreeSize((ADDRESS)tmp_ordsgn,(3*(n+r->N)*sizeof(long)));
3733 
3734  // ----------------------------
3735  // description of orderings for setm:
3736  //
3737  r->OrdSize=typ_i;
3738  if (typ_i==0) r->typ=NULL;
3739  else
3740  {
3741  r->typ=(sro_ord*)omAlloc(typ_i*sizeof(sro_ord));
3742  memcpy(r->typ,tmp_typ,typ_i*sizeof(sro_ord));
3743  }
3744  omFreeSize((ADDRESS)tmp_typ,(3*(n+r->N)*sizeof(sro_ord)));
3745 
3746  // ----------------------------
3747  // indices for (first copy of ) variable entries in exp.e vector (VarOffset):
3748  r->VarOffset=v;
3749 
3750  // ----------------------------
3751  // other indicies
3752  r->pCompIndex=(r->VarOffset[0] & 0xffff); //r->VarOffset[0];
3753  i=0; // position
3754  j=0; // index in r->typ
3755  if (i==r->pCompIndex) i++; // IS???
3756  while ((j < r->OrdSize)
3757  && ((r->typ[j].ord_typ==ro_syzcomp) ||
3758  (r->typ[j].ord_typ==ro_syz) || (r->typ[j].ord_typ==ro_isTemp) || (r->typ[j].ord_typ==ro_is) ||
3759  (r->order[r->typ[j].order_index] == ringorder_aa)))
3760  {
3761  i++; j++;
3762  }
3763 
3764  if (i==r->pCompIndex) i++;
3765  r->pOrdIndex=i;
3766 
3767  // ----------------------------
3768  rSetDegStuff(r); // OrdSgn etc already set
3769  rSetOption(r);
3770  // ----------------------------
3771  // r->p_Setm
3772  r->p_Setm = p_GetSetmProc(r);
3773 
3774  // ----------------------------
3775  // set VarL_*
3776  rSetVarL(r);
3777 
3778  // ----------------------------
3779  // right-adjust VarOffset
3781 
3782  // ----------------------------
3783  // set NegWeightL*
3784  rSetNegWeight(r);
3785 
3786  // ----------------------------
3787  // p_Procs: call AFTER NegWeightL
3788  r->p_Procs = (p_Procs_s*)omAlloc(sizeof(p_Procs_s));
3789  p_ProcsSet(r, r->p_Procs);
3790 
3791  // use totaldegree on crazy oderings:
3792  if ((r->pFDeg==p_WTotaldegree) && rOrd_is_MixedDegree_Ordering(r))
3793  r->pFDeg = p_Totaldegree;
3794  return FALSE;
3795 }
long int64
Definition: auxiliary.h:68
#define BIT_SIZEOF_LONG
Definition: auxiliary.h:80
int BOOLEAN
Definition: auxiliary.h:87
int l
Definition: cfEzgcd.cc:100
int k
Definition: cfEzgcd.cc:99
const CanonicalForm int s
Definition: facAbsFact.cc:51
const Variable & v
< [in] a sqrfree bivariate poly
Definition: facBivar.h:39
int dReportError(const char *fmt,...)
Definition: dError.cc:43
#define omFreeSize(addr, size)
Definition: omAllocDecl.h:260
long p_WTotaldegree(poly p, const ring r)
Definition: p_polys.cc:609
p_SetmProc p_GetSetmProc(const ring r)
Definition: p_polys.cc:556
static long p_Totaldegree(poly p, const ring r)
Definition: p_polys.h:1479
static void rSetNegWeight(ring r)
Definition: ring.cc:3292
static void rO_ISSuffix(int &place, int &bitplace, int &prev_ord, long *o, int N, int *v, sro_ord *tmp_typ, int &typ_i, int sgn)
Definition: ring.cc:2419
static void rSetOption(ring r)
Definition: ring.cc:3329
#define BITS_PER_LONG
Definition: ring.cc:40
static void rO_WDegree64(int &place, int &bitplace, int start, int end, long *o, sro_ord &ord_struct, int64 *weights)
Definition: ring.cc:2240
static void rSetVarL(ring r)
set r->VarL_Size, r->VarL_Offset, r->VarL_LowIndex
Definition: ring.cc:3972
static void rO_LexVars(int &place, int &bitplace, int start, int end, int &prev_ord, long *o, int *v, int bits, int opt_var)
Definition: ring.cc:2284
BOOLEAN rOrd_is_MixedDegree_Ordering(ring r)
Definition: ring.cc:3373
static void rSetOutParams(ring r)
Definition: ring.cc:3025
static void rSetDegStuff(ring r)
Definition: ring.cc:3122
static void rO_WDegree_neg(int &place, int &bitplace, int start, int end, long *o, sro_ord &ord_struct, int *weights)
Definition: ring.cc:2258
static void rO_Syzcomp(int &place, int &bitplace, int &prev_ord, long *o, sro_ord &ord_struct)
Definition: ring.cc:2360
static void rO_TDegree(int &place, int &bitplace, int start, int end, long *o, sro_ord &ord_struct)
Definition: ring.cc:2150
static void rO_WMDegree(int &place, int &bitplace, int start, int end, long *o, sro_ord &ord_struct, int *weights)
Definition: ring.cc:2218
static void rO_Syz(int &place, int &bitplace, int &prev_ord, int syz_comp, long *o, sro_ord &ord_struct)
Definition: ring.cc:2375
static unsigned long rGetExpSize(unsigned long bitmask, int &bits)
Definition: ring.cc:2510
static void rCheckOrdSgn(ring r, int i)
Definition: ring.cc:3797
static unsigned long rGetDivMask(int bits)
get r->divmask depending on bits per exponent
Definition: ring.cc:4053
static void rRightAdjustVarOffset(ring r)
right-adjust r->VarOffset
Definition: ring.cc:4027
static void rO_ISPrefix(int &place, int &bitplace, int &prev_ord, long *o, int, int *v, sro_ord &ord_struct)
Definition: ring.cc:2401
static void rO_Align(int &place, int &bitplace)
Definition: ring.cc:2139
static void rO_TDegree_neg(int &place, int &bitplace, int start, int end, long *o, sro_ord &ord_struct)
Definition: ring.cc:2164
static void rO_WDegree(int &place, int &bitplace, int start, int end, long *o, sro_ord &ord_struct, int *weights)
Definition: ring.cc:2178
static void rO_LexVars_neg(int &place, int &bitplace, int start, int end, int &prev_ord, long *o, int *v, int bits, int opt_var)
Definition: ring.cc:2321
@ ro_syz
Definition: ring.h:60
@ ro_is
Definition: ring.h:61
@ ro_isTemp
Definition: ring.h:61
@ ro_syzcomp
Definition: ring.h:59
@ ringorder_am
Definition: ring.h:88
@ ringorder_a64
for int64 weights
Definition: ring.h:71
@ ringorder_unspec
Definition: ring.h:94
@ ringorder_no
Definition: ring.h:69
int order_index
Definition: ring.h:221

◆ rCopy()

ring rCopy ( ring  r)

Definition at line 1645 of file ring.cc.

1646 {
1647  if (r == NULL) return NULL;
1648  ring res=rCopy0(r,FALSE,TRUE);
1649  rComplete(res, 1); // res is purely commutative so far
1650  if (r->qideal!=NULL) res->qideal=idrCopyR_NoSort(r->qideal, r, res);
1651 
1652 #ifdef HAVE_PLURAL
1653  if (rIsPluralRing(r))
1654  if( nc_rCopy(res, r, true) ) {}
1655 #endif
1656 
1657  return res;
1658 }
bool nc_rCopy(ring res, const ring r, bool bSetupQuotient)
Definition: old.gring.cc:3003

◆ rCopy0()

ring rCopy0 ( const ring  r,
BOOLEAN  copy_qideal,
BOOLEAN  copy_ordering 
)

Definition at line 1363 of file ring.cc.

1364 {
1365  if (r == NULL) return NULL;
1366  int i,j;
1367  ring res=(ring)omAlloc0Bin(sip_sring_bin);
1368  //memset: res->idroot=NULL; /* local objects */
1369  //ideal minideal;
1370  res->options=r->options; /* ring dependent options */
1371 
1372  //memset: res->ordsgn=NULL;
1373  //memset: res->typ=NULL;
1374  //memset: res->VarOffset=NULL;
1375  //memset: res->firstwv=NULL;
1376 
1377  //struct omBin PolyBin; /* Bin from where monoms are allocated */
1378  //memset: res->PolyBin=NULL; // rComplete
1379  res->cf=nCopyCoeff(r->cf); /* coeffs */
1380 
1381  //memset: res->ref=0; /* reference counter to the ring */
1382 
1383  res->N=rVar(r); /* number of vars */
1384 
1385  res->firstBlockEnds=r->firstBlockEnds;
1386 #ifdef HAVE_PLURAL
1387  res->real_var_start=r->real_var_start;
1388  res->real_var_end=r->real_var_end;
1389 #endif
1390 
1391 #ifdef HAVE_SHIFTBBA
1392  res->isLPring=r->isLPring; /* 0 for non-letterplace rings, otherwise the number of LP blocks, at least 1, known also as lV */
1393  res->LPncGenCount=r->LPncGenCount;
1394 #endif
1395 
1396  res->VectorOut=r->VectorOut;
1397  res->ShortOut=r->ShortOut;
1398  res->CanShortOut=r->CanShortOut;
1399 
1400  //memset: res->ExpL_Size=0;
1401  //memset: res->CmpL_Size=0;
1402  //memset: res->VarL_Size=0;
1403  //memset: res->pCompIndex=0;
1404  //memset: res->pOrdIndex=0;
1405  //memset: res->OrdSize=0;
1406  //memset: res->VarL_LowIndex=0;
1407  //memset: res->NegWeightL_Size=0;
1408  //memset: res->NegWeightL_Offset=NULL;
1409  //memset: res->VarL_Offset=NULL;
1410 
1411  // the following are set by rComplete unless predefined
1412  // therefore, we copy these values: maybe they are non-standard
1413  /* mask for getting single exponents */
1414  res->bitmask=r->bitmask;
1415  res->divmask=r->divmask;
1416  res->BitsPerExp = r->BitsPerExp;
1417  res->ExpPerLong = r->ExpPerLong;
1418 
1419  //memset: res->p_Procs=NULL;
1420  //memset: res->pFDeg=NULL;
1421  //memset: res->pLDeg=NULL;
1422  //memset: res->pFDegOrig=NULL;
1423  //memset: res->pLDegOrig=NULL;
1424  //memset: res->p_Setm=NULL;
1425  //memset: res->cf=NULL;
1426 
1427 /*
1428  if (r->extRing!=NULL)
1429  r->extRing->ref++;
1430 
1431  res->extRing=r->extRing;
1432  //memset: res->qideal=NULL;
1433 */
1434 
1435 
1436  if (copy_ordering == TRUE)
1437  {
1438  res->LexOrder=r->LexOrder; // TRUE if the monomial ordering has polynomial and power series blocks
1439  res->MixedOrder=r->MixedOrder; // TRUE for mixed (global/local) ordering, FALSE otherwise,
1440  i=rBlocks(r);
1441  res->wvhdl = (int **)omAlloc(i * sizeof(int *));
1442  res->order = (rRingOrder_t *) omAlloc(i * sizeof(rRingOrder_t));
1443  res->block0 = (int *) omAlloc(i * sizeof(int));
1444  res->block1 = (int *) omAlloc(i * sizeof(int));
1445  for (j=0; j<i; j++)
1446  {
1447  if (r->wvhdl[j]!=NULL)
1448  {
1449  res->wvhdl[j] = (int*) omMemDup(r->wvhdl[j]);
1450  }
1451  else
1452  res->wvhdl[j]=NULL;
1453  }
1454  memcpy(res->order,r->order,i * sizeof(rRingOrder_t));
1455  memcpy(res->block0,r->block0,i * sizeof(int));
1456  memcpy(res->block1,r->block1,i * sizeof(int));
1457  }
1458  //memset: else
1459  //memset: {
1460  //memset: res->wvhdl = NULL;
1461  //memset: res->order = NULL;
1462  //memset: res->block0 = NULL;
1463  //memset: res->block1 = NULL;
1464  //memset: }
1465 
1466  res->names = (char **)omAlloc0(rVar(r) * sizeof(char *));
1467  for (i=0; i<rVar(res); i++)
1468  {
1469  res->names[i] = omStrDup(r->names[i]);
1470  }
1471  if (r->qideal!=NULL)
1472  {
1473  if (copy_qideal)
1474  {
1475  assume(copy_ordering);
1476  rComplete(res);
1477  res->qideal= idrCopyR_NoSort(r->qideal, r, res);
1478  rUnComplete(res);
1479  }
1480  //memset: else res->qideal = NULL;
1481  }
1482  //memset: else res->qideal = NULL;
1483  //memset: res->GetNC() = NULL; // copy is purely commutative!!!
1484  return res;
1485 }
static FORCE_INLINE coeffs nCopyCoeff(const coeffs r)
"copy" coeffs, i.e. increment ref
Definition: coeffs.h:429
#define omStrDup(s)
Definition: omAllocDecl.h:263
#define omAlloc0Bin(bin)
Definition: omAllocDecl.h:206
VAR omBin sip_sring_bin
Definition: ring.cc:43
void rUnComplete(ring r)
Definition: ring.cc:3910
static short rVar(const ring r)
#define rVar(r) (r->N)
Definition: ring.h:593

◆ rCopy0AndAddA()

ring rCopy0AndAddA ( const ring  r,
int64vec wv64,
BOOLEAN  copy_qideal,
BOOLEAN  copy_ordering 
)

Definition at line 1492 of file ring.cc.

1493 {
1494  if (r == NULL) return NULL;
1495  int i,j;
1496  ring res=(ring)omAlloc0Bin(sip_sring_bin);
1497  //memcpy(res,r,sizeof(ip_sring));
1498  //memset: res->idroot=NULL; /* local objects */
1499  //ideal minideal;
1500  res->options=r->options; /* ring dependent options */
1501 
1502  //memset: res->ordsgn=NULL;
1503  //memset: res->typ=NULL;
1504  //memset: res->VarOffset=NULL;
1505  //memset: res->firstwv=NULL;
1506 
1507  //struct omBin PolyBin; /* Bin from where monoms are allocated */
1508  //memset: res->PolyBin=NULL; // rComplete
1509  res->cf=nCopyCoeff(r->cf); /* coeffs */
1510 
1511  //memset: res->ref=0; /* reference counter to the ring */
1512 
1513  res->N=rVar(r); /* number of vars */
1514 
1515  res->firstBlockEnds=r->firstBlockEnds;
1516 #ifdef HAVE_PLURAL
1517  res->real_var_start=r->real_var_start;
1518  res->real_var_end=r->real_var_end;
1519 #endif
1520 
1521 #ifdef HAVE_SHIFTBBA
1522  res->isLPring=r->isLPring; /* 0 for non-letterplace rings, otherwise the number of LP blocks, at least 1, known also as lV */
1523  res->LPncGenCount=r->LPncGenCount;
1524 #endif
1525 
1526  res->VectorOut=r->VectorOut;
1527  res->ShortOut=r->ShortOut;
1528  res->CanShortOut=r->CanShortOut;
1529  res->LexOrder=r->LexOrder; // TRUE if the monomial ordering has polynomial and power series blocks
1530  res->MixedOrder=r->MixedOrder; // TRUE for mixed (global/local) ordering, FALSE otherwise,
1531 
1532  //memset: res->ExpL_Size=0;
1533  //memset: res->CmpL_Size=0;
1534  //memset: res->VarL_Size=0;
1535  //memset: res->pCompIndex=0;
1536  //memset: res->pOrdIndex=0;
1537  //memset: res->OrdSize=0;
1538  //memset: res->VarL_LowIndex=0;
1539  //memset: res->NegWeightL_Size=0;
1540  //memset: res->NegWeightL_Offset=NULL;
1541  //memset: res->VarL_Offset=NULL;
1542 
1543  // the following are set by rComplete unless predefined
1544  // therefore, we copy these values: maybe they are non-standard
1545  /* mask for getting single exponents */
1546  res->bitmask=r->bitmask;
1547  res->divmask=r->divmask;
1548  res->BitsPerExp = r->BitsPerExp;
1549  res->ExpPerLong = r->ExpPerLong;
1550 
1551  //memset: res->p_Procs=NULL;
1552  //memset: res->pFDeg=NULL;
1553  //memset: res->pLDeg=NULL;
1554  //memset: res->pFDegOrig=NULL;
1555  //memset: res->pLDegOrig=NULL;
1556  //memset: res->p_Setm=NULL;
1557  //memset: res->cf=NULL;
1558 
1559 /*
1560  if (r->extRing!=NULL)
1561  r->extRing->ref++;
1562 
1563  res->extRing=r->extRing;
1564  //memset: res->qideal=NULL;
1565 */
1566 
1567 
1568  if (copy_ordering == TRUE)
1569  {
1570  i=rBlocks(r)+1; // DIFF to rCopy0
1571  res->wvhdl = (int **)omAlloc(i * sizeof(int *));
1572  res->order = (rRingOrder_t *) omAlloc(i * sizeof(rRingOrder_t));
1573  res->block0 = (int *) omAlloc(i * sizeof(int));
1574  res->block1 = (int *) omAlloc(i * sizeof(int));
1575  for (j=0; j<i-1; j++)
1576  {
1577  if (r->wvhdl[j]!=NULL)
1578  {
1579  res->wvhdl[j+1] = (int*) omMemDup(r->wvhdl[j]); //DIFF
1580  }
1581  else
1582  res->wvhdl[j+1]=NULL; //DIFF
1583  }
1584  memcpy(&(res->order[1]),r->order,(i-1) * sizeof(rRingOrder_t)); //DIFF
1585  memcpy(&(res->block0[1]),r->block0,(i-1) * sizeof(int)); //DIFF
1586  memcpy(&(res->block1[1]),r->block1,(i-1) * sizeof(int)); //DIFF
1587  }
1588  //memset: else
1589  //memset: {
1590  //memset: res->wvhdl = NULL;
1591  //memset: res->order = NULL;
1592  //memset: res->block0 = NULL;
1593  //memset: res->block1 = NULL;
1594  //memset: }
1595 
1596  //the added A
1597  res->order[0]=ringorder_a64;
1598  int length=wv64->rows();
1599  int64 *A=(int64 *)omAlloc(length*sizeof(int64));
1600  for(j=length-1;j>=0;j--)
1601  {
1602  A[j]=(*wv64)[j];
1603  }
1604  res->wvhdl[0]=(int *)A;
1605  res->block0[0]=1;
1606  res->block1[0]=length;
1607  //
1608 
1609  res->names = (char **)omAlloc0(rVar(r) * sizeof(char *));
1610  for (i=0; i<rVar(res); i++)
1611  {
1612  res->names[i] = omStrDup(r->names[i]);
1613  }
1614  if (r->qideal!=NULL)
1615  {
1616  if (copy_qideal)
1617  {
1618  #ifndef SING_NDEBUG
1619  if (!copy_ordering)
1620  WerrorS("internal error: rCopy0(Q,TRUE,FALSE)");
1621  else
1622  #endif
1623  {
1624  #ifndef SING_NDEBUG
1625  WarnS("internal bad stuff: rCopy0(Q,TRUE,TRUE)");
1626  #endif
1627  rComplete(res);
1628  res->qideal= idrCopyR_NoSort(r->qideal, r, res);
1629  rUnComplete(res);
1630  }
1631  }
1632  //memset: else res->qideal = NULL;
1633  }
1634  //memset: else res->qideal = NULL;
1635  //memset: res->GetNC() = NULL; // copy is purely commutative!!!
1636  return res;
1637 }
int rows() const
Definition: int64vec.h:66
#define A
Definition: sirandom.c:24

◆ rDBChangeSComps()

static void rDBChangeSComps ( int *  currComponents,
long *  currShiftedComponents,
int  length,
ring  r 
)
inlinestatic

Definition at line 4366 of file ring.cc.

4370 {
4371  assume(r->typ[1].ord_typ == ro_syzcomp);
4372 
4373  r->typ[1].data.syzcomp.length = length;
4374  rNChangeSComps( currComponents, currShiftedComponents, r);
4375 }

◆ rDBGetSComps()

static void rDBGetSComps ( int **  currComponents,
long **  currShiftedComponents,
int *  length,
ring  r 
)
inlinestatic

Definition at line 4376 of file ring.cc.

4380 {
4381  assume(r->typ[1].ord_typ == ro_syzcomp);
4382 
4383  *length = r->typ[1].data.syzcomp.length;
4384  rNGetSComps( currComponents, currShiftedComponents, r);
4385 }
static void rNGetSComps(int **currComponents, long **currShiftedComponents, ring r)
Definition: ring.cc:4358

◆ rDBTest()

BOOLEAN rDBTest ( ring  r,
const char *  fn,
const int  l 
)

Definition at line 1989 of file ring.cc.

1990 {
1991  int i,j;
1992 
1993  if (r == NULL)
1994  {
1995  dReportError("Null ring in %s:%d", fn, l);
1996  return FALSE;
1997  }
1998 
1999 
2000  if (r->N == 0) return TRUE;
2001 
2002  if ((r->OrdSgn!=1) && (r->OrdSgn!= -1))
2003  {
2004  dReportError("missing OrdSgn in %s:%d", fn, l);
2005  return FALSE;
2006  }
2007 
2008 // omCheckAddrSize(r,sizeof(ip_sring));
2009 #if OM_CHECK > 0
2010  i=rBlocks(r);
2011  omCheckAddrSize(r->order,i*sizeof(int));
2012  omCheckAddrSize(r->block0,i*sizeof(int));
2013  omCheckAddrSize(r->block1,i*sizeof(int));
2014  for(int j=0;j<=i;j++)
2015  {
2016  if((r->order[j]<0)||(r->order[j]>ringorder_unspec))
2017  dError("wrong order in r->order");
2018  }
2019  if (r->wvhdl!=NULL)
2020  {
2021  omCheckAddrSize(r->wvhdl,i*sizeof(int *));
2022  for (j=0;j<i; j++)
2023  {
2024  if (r->wvhdl[j] != NULL) omCheckAddr(r->wvhdl[j]);
2025  }
2026  }
2027 #endif
2028  if (r->VarOffset == NULL)
2029  {
2030  dReportError("Null ring VarOffset -- no rComplete (?) in n %s:%d", fn, l);
2031  return FALSE;
2032  }
2033  omCheckAddrSize(r->VarOffset,(r->N+1)*sizeof(int));
2034 
2035  if ((r->OrdSize==0)!=(r->typ==NULL))
2036  {
2037  dReportError("mismatch OrdSize and typ-pointer in %s:%d");
2038  return FALSE;
2039  }
2040  omcheckAddrSize(r->typ,r->OrdSize*sizeof(*(r->typ)));
2041  omCheckAddrSize(r->VarOffset,(r->N+1)*sizeof(*(r->VarOffset)));
2042  // test assumptions:
2043  for(i=0;i<=r->N;i++) // for all variables (i = 0..N)
2044  {
2045  if(r->typ!=NULL)
2046  {
2047  for(j=0;j<r->OrdSize;j++) // for all ordering blocks (j =0..OrdSize-1)
2048  {
2049  if(r->typ[j].ord_typ == ro_isTemp)
2050  {
2051  const int p = r->typ[j].data.isTemp.suffixpos;
2052 
2053  if(p <= j)
2054  dReportError("ordrec prefix %d is unmatched",j);
2055 
2056  assume( p < r->OrdSize );
2057 
2058  if(r->typ[p].ord_typ != ro_is)
2059  dReportError("ordrec prefix %d is unmatched (suffix: %d is wrong!!!)",j, p);
2060 
2061  // Skip all intermediate blocks for undone variables:
2062  if(r->typ[j].data.isTemp.pVarOffset[i] != -1) // Check i^th variable
2063  {
2064  j = p - 1; // SKIP ALL INTERNAL BLOCKS...???
2065  continue; // To make for check OrdSize bound...
2066  }
2067  }
2068  else if (r->typ[j].ord_typ == ro_is)
2069  {
2070  // Skip all intermediate blocks for undone variables:
2071  if(r->typ[j].data.is.pVarOffset[i] != -1)
2072  {
2073  // TODO???
2074  }
2075 
2076  }
2077  else
2078  {
2079  if (r->typ[j].ord_typ==ro_cp)
2080  {
2081  if(((short)r->VarOffset[i]) == r->typ[j].data.cp.place)
2082  dReportError("ordrec %d conflicts with var %d",j,i);
2083  }
2084  else
2085  if ((r->typ[j].ord_typ!=ro_syzcomp)
2086  && (r->VarOffset[i] == r->typ[j].data.dp.place))
2087  dReportError("ordrec %d conflicts with var %d",j,i);
2088  }
2089  }
2090  }
2091  int tmp;
2092  tmp=r->VarOffset[i] & 0xffffff;
2093  #if SIZEOF_LONG == 8
2094  if ((r->VarOffset[i] >> 24) >63)
2095  #else
2096  if ((r->VarOffset[i] >> 24) >31)
2097  #endif
2098  dReportError("bit_start out of range:%d",r->VarOffset[i] >> 24);
2099  if (i > 0 && ((tmp<0) ||(tmp>r->ExpL_Size-1)))
2100  {
2101  dReportError("varoffset out of range for var %d: %d",i,tmp);
2102  }
2103  }
2104  if(r->typ!=NULL)
2105  {
2106  for(j=0;j<r->OrdSize;j++)
2107  {
2108  if ((r->typ[j].ord_typ==ro_dp)
2109  || (r->typ[j].ord_typ==ro_wp)
2110  || (r->typ[j].ord_typ==ro_wp_neg))
2111  {
2112  if (r->typ[j].data.dp.start > r->typ[j].data.dp.end)
2113  dReportError("in ordrec %d: start(%d) > end(%d)",j,
2114  r->typ[j].data.dp.start, r->typ[j].data.dp.end);
2115  if ((r->typ[j].data.dp.start < 1)
2116  || (r->typ[j].data.dp.end > r->N))
2117  dReportError("in ordrec %d: start(%d)<1 or end(%d)>vars(%d)",j,
2118  r->typ[j].data.dp.start, r->typ[j].data.dp.end,r->N);
2119  }
2120  }
2121  }
2122 
2123  assume(r != NULL);
2124  assume(r->cf != NULL);
2125 
2126  if (nCoeff_is_algExt(r->cf))
2127  {
2128  assume(r->cf->extRing != NULL);
2129  assume(r->cf->extRing->qideal != NULL);
2130  omCheckAddr(r->cf->extRing->qideal->m[0]);
2131  }
2132 
2133  //assume(r->cf!=NULL);
2134 
2135  return TRUE;
2136 }
static FORCE_INLINE BOOLEAN nCoeff_is_algExt(const coeffs r)
TRUE iff r represents an algebraic extension field.
Definition: coeffs.h:910
#define omCheckAddr(addr)
Definition: omAllocDecl.h:328
#define omCheckAddrSize(addr, size)
Definition: omAllocDecl.h:327
#define omcheckAddrSize(addr, size)
Definition: omAllocDecl.h:329
@ ro_cp
Definition: ring.h:58
@ ro_wp_neg
Definition: ring.h:56
@ ro_wp
Definition: ring.h:53

◆ rDebugPrint()

void rDebugPrint ( const ring  r)

Definition at line 4067 of file ring.cc.

4068 {
4069  if (r==NULL)
4070  {
4071  PrintS("NULL ?\n");
4072  return;
4073  }
4074  // corresponds to ro_typ from ring.h:
4075  const char *TYP[]={"ro_dp","ro_wp","ro_am","ro_wp64","ro_wp_neg","ro_cp",
4076  "ro_syzcomp", "ro_syz", "ro_isTemp", "ro_is", "ro_none"};
4077  int i,j;
4078 
4079  Print("ExpL_Size:%d ",r->ExpL_Size);
4080  Print("CmpL_Size:%d ",r->CmpL_Size);
4081  Print("VarL_Size:%d\n",r->VarL_Size);
4082  Print("bitmask=0x%lx (expbound=%ld) \n",r->bitmask, r->bitmask);
4083  Print("divmask=%lx\n", r->divmask);
4084  Print("BitsPerExp=%d ExpPerLong=%d at L[%d]\n", r->BitsPerExp, r->ExpPerLong, r->VarL_Offset[0]);
4085 
4086  Print("VarL_LowIndex: %d\n", r->VarL_LowIndex);
4087  PrintS("VarL_Offset:\n");
4088  if (r->VarL_Offset==NULL) PrintS(" NULL");
4089  else
4090  for(j = 0; j < r->VarL_Size; j++)
4091  Print(" VarL_Offset[%d]: %d ", j, r->VarL_Offset[j]);
4092  PrintLn();
4093 
4094 
4095  PrintS("VarOffset:\n");
4096  if (r->VarOffset==NULL) PrintS(" NULL\n");
4097  else
4098  for(j=0;j<=r->N;j++)
4099  Print(" v%d at e-pos %d, bit %d\n",
4100  j,r->VarOffset[j] & 0xffffff, r->VarOffset[j] >>24);
4101  PrintS("ordsgn:\n");
4102  for(j=0;j<r->CmpL_Size;j++)
4103  Print(" ordsgn %ld at pos %d\n",r->ordsgn[j],j);
4104  Print("OrdSgn:%d\n",r->OrdSgn);
4105  PrintS("ordrec:\n");
4106  for(j=0;j<r->OrdSize;j++)
4107  {
4108  Print(" typ %s", TYP[r->typ[j].ord_typ]);
4109  if (r->typ[j].ord_typ==ro_syz)
4110  {
4111  const short place = r->typ[j].data.syz.place;
4112  const int limit = r->typ[j].data.syz.limit;
4113  const int curr_index = r->typ[j].data.syz.curr_index;
4114  const int* syz_index = r->typ[j].data.syz.syz_index;
4115 
4116  Print(" limit %d (place: %d, curr_index: %d), syz_index: ", limit, place, curr_index);
4117 
4118  if( syz_index == NULL )
4119  PrintS("(NULL)");
4120  else
4121  {
4122  PrintS("{");
4123  for( i=0; i <= limit; i++ )
4124  Print("%d ", syz_index[i]);
4125  PrintS("}");
4126  }
4127 
4128  }
4129  else if (r->typ[j].ord_typ==ro_isTemp)
4130  {
4131  Print(" start (level) %d, suffixpos: %d, VO: ",r->typ[j].data.isTemp.start, r->typ[j].data.isTemp.suffixpos);
4132 
4133  }
4134  else if (r->typ[j].ord_typ==ro_is)
4135  {
4136  Print(" start %d, end: %d: ",r->typ[j].data.is.start, r->typ[j].data.is.end);
4137 
4138 // for( int k = 0; k <= r->N; k++) if (r->typ[j].data.is.pVarOffset[k] != -1) Print("[%2d]: %04x; ", k, r->typ[j].data.is.pVarOffset[k]);
4139 
4140  Print(" limit %d",r->typ[j].data.is.limit);
4141 #ifndef SING_NDEBUG
4142  //PrintS(" F: ");idShow(r->typ[j].data.is.F, r, r, 1);
4143 #endif
4144 
4145  PrintLn();
4146  }
4147  else if (r->typ[j].ord_typ==ro_am)
4148  {
4149  Print(" place %d",r->typ[j].data.am.place);
4150  Print(" start %d",r->typ[j].data.am.start);
4151  Print(" end %d",r->typ[j].data.am.end);
4152  Print(" len_gen %d",r->typ[j].data.am.len_gen);
4153  PrintS(" w:");
4154  int l=0;
4155  for(l=r->typ[j].data.am.start;l<=r->typ[j].data.am.end;l++)
4156  Print(" %d",r->typ[j].data.am.weights[l-r->typ[j].data.am.start]);
4157  l=r->typ[j].data.am.end+1;
4158  int ll=r->typ[j].data.am.weights[l-r->typ[j].data.am.start];
4159  PrintS(" m:");
4160  for(int lll=l+1;lll<l+ll+1;lll++)
4161  Print(" %d",r->typ[j].data.am.weights[lll-r->typ[j].data.am.start]);
4162  }
4163  else
4164  {
4165  Print(" place %d",r->typ[j].data.dp.place);
4166 
4167  if (r->typ[j].ord_typ!=ro_syzcomp && r->typ[j].ord_typ!=ro_syz)
4168  {
4169  Print(" start %d",r->typ[j].data.dp.start);
4170  Print(" end %d",r->typ[j].data.dp.end);
4171  if ((r->typ[j].ord_typ==ro_wp)
4172  || (r->typ[j].ord_typ==ro_wp_neg))
4173  {
4174  PrintS(" w:");
4175  for(int l=r->typ[j].data.wp.start;l<=r->typ[j].data.wp.end;l++)
4176  Print(" %d",r->typ[j].data.wp.weights[l-r->typ[j].data.wp.start]);
4177  }
4178  else if (r->typ[j].ord_typ==ro_wp64)
4179  {
4180  PrintS(" w64:");
4181  int l;
4182  for(l=r->typ[j].data.wp64.start;l<=r->typ[j].data.wp64.end;l++)
4183  Print(" %ld",(long)(((int64*)r->typ[j].data.wp64.weights64)+l-r->typ[j].data.wp64.start));
4184  }
4185  }
4186  }
4187  PrintLn();
4188  }
4189  Print("pOrdIndex:%d pCompIndex:%d\n", r->pOrdIndex, r->pCompIndex);
4190  Print("OrdSize:%d\n",r->OrdSize);
4191  PrintS("--------------------\n");
4192  for(j=0;j<r->ExpL_Size;j++)
4193  {
4194  Print("L[%d]: ",j);
4195  if (j< r->CmpL_Size)
4196  Print("ordsgn %ld ", r->ordsgn[j]);
4197  else
4198  PrintS("no comp ");
4199  i=1;
4200  for(;i<=r->N;i++)
4201  {
4202  if( (r->VarOffset[i] & 0xffffff) == j )
4203  { Print("v%d at e[%d], bit %d; ", i,r->VarOffset[i] & 0xffffff,
4204  r->VarOffset[i] >>24 ); }
4205  }
4206  if( r->pCompIndex==j ) PrintS("v0; ");
4207  for(i=0;i<r->OrdSize;i++)
4208  {
4209  if (r->typ[i].data.dp.place == j)
4210  {
4211  Print("ordrec:%s (start:%d, end:%d) ",TYP[r->typ[i].ord_typ],
4212  r->typ[i].data.dp.start, r->typ[i].data.dp.end);
4213  }
4214  }
4215 
4216  if (j==r->pOrdIndex)
4217  PrintS("pOrdIndex\n");
4218  else
4219  PrintLn();
4220  }
4221  Print("LexOrder:%d, MixedOrder:%d\n",r->LexOrder, r->MixedOrder);
4222 
4223  Print("NegWeightL_Size: %d, NegWeightL_Offset: ", r->NegWeightL_Size);
4224  if (r->NegWeightL_Offset==NULL) PrintS(" NULL");
4225  else
4226  for(j = 0; j < r->NegWeightL_Size; j++)
4227  Print(" [%d]: %d ", j, r->NegWeightL_Offset[j]);
4228  PrintLn();
4229 
4230  // p_Procs stuff
4231  p_Procs_s proc_names;
4232  const char* field;
4233  const char* length;
4234  const char* ord;
4235  p_Debug_GetProcNames(r, &proc_names); // changes p_Procs!!!
4236  p_Debug_GetSpecNames(r, field, length, ord);
4237 
4238  Print("p_Spec : %s, %s, %s\n", field, length, ord);
4239  PrintS("p_Procs :\n");
4240  for (i=0; i<(int) (sizeof(p_Procs_s)/sizeof(void*)); i++)
4241  {
4242  Print(" %s,\n", ((char**) &proc_names)[i]);
4243  }
4244 
4245  {
4246  PrintLn();
4247  PrintS("pFDeg : ");
4248 #define pFDeg_CASE(A) if(r->pFDeg == A) PrintS( "" #A "" )
4249  pFDeg_CASE(p_Totaldegree); else
4251  pFDeg_CASE(p_WTotaldegree); else
4252  pFDeg_CASE(p_Deg); else
4253 #undef pFDeg_CASE
4254  Print("(%p)", r->pFDeg); // default case
4255 
4256  PrintLn();
4257  Print("pLDeg : (%p)", r->pLDeg);
4258  PrintLn();
4259  }
4260  PrintS("pSetm:");
4261  void p_Setm_Dummy(poly p, const ring r);
4262  void p_Setm_TotalDegree(poly p, const ring r);
4263  void p_Setm_WFirstTotalDegree(poly p, const ring r);
4264  void p_Setm_General(poly p, const ring r);
4265  if (r->p_Setm==p_Setm_General) PrintS("p_Setm_General\n");
4266  else if (r->p_Setm==p_Setm_Dummy) PrintS("p_Setm_Dummy\n");
4267  else if (r->p_Setm==p_Setm_TotalDegree) PrintS("p_Setm_Totaldegree\n");
4268  else if (r->p_Setm==p_Setm_WFirstTotalDegree) PrintS("p_Setm_WFirstTotalDegree\n");
4269  else Print("%p\n",r->p_Setm);
4270 }
void p_Debug_GetProcNames(const ring r, p_Procs_s *p_Procs)
Definition: p_Procs_Set.h:232
void p_Debug_GetSpecNames(const ring r, const char *&field, const char *&length, const char *&ord)
Definition: p_Procs_Set.h:221
void p_Setm_WFirstTotalDegree(poly p, const ring r)
Definition: p_polys.cc:550
long p_WFirstTotalDegree(poly p, const ring r)
Definition: p_polys.cc:592
void p_Setm_Dummy(poly p, const ring r)
Definition: p_polys.cc:537
void p_Setm_TotalDegree(poly p, const ring r)
Definition: p_polys.cc:543
long p_Deg(poly a, const ring r)
Definition: p_polys.cc:583
#define pFDeg_CASE(A)
@ ro_wp64
Definition: ring.h:55
@ ro_am
Definition: ring.h:54

◆ rDefault() [1/4]

ring rDefault ( const coeffs  cf,
int  N,
char **  n,
const rRingOrder_t  o 
)

Definition at line 138 of file ring.cc.

139 {
140  assume( cf != NULL);
141  /*order: o=lp,0*/
142  rRingOrder_t *order = (rRingOrder_t *) omAlloc(2* sizeof(rRingOrder_t));
143  int *block0 = (int *)omAlloc0(2 * sizeof(int));
144  int *block1 = (int *)omAlloc0(2 * sizeof(int));
145  /* ringorder o=lp for the first block: var 1..N */
146  order[0] = o;
147  block0[0] = 1;
148  block1[0] = N;
149  /* the last block: everything is 0 */
150  order[1] = (rRingOrder_t)0;
151 
152  return rDefault(cf,N,n,2,order,block0,block1);
153 }
CanonicalForm cf
Definition: cfModGcd.cc:4083
ring rDefault(const coeffs cf, int N, char **n, int ord_size, rRingOrder_t *ord, int *block0, int *block1, int **wvhdl, unsigned long bitmask)
Definition: ring.cc:102

◆ rDefault() [2/4]

ring rDefault ( const coeffs  cf,
int  N,
char **  n,
int  ord_size,
rRingOrder_t ord,
int *  block0,
int *  block1,
int **  wvhdl,
unsigned long  bitmask 
)

Definition at line 102 of file ring.cc.

103 {
104  assume( cf != NULL);
105  ring r=(ring) omAlloc0Bin(sip_sring_bin);
106  r->N = N;
107  r->cf = cf;
108  /*rPar(r) = 0; Alloc0 */
109  /*names*/
110  r->names = (char **) omAlloc0(N * sizeof(char *));
111  int i;
112  for(i=0;i<N;i++)
113  {
114  r->names[i] = omStrDup(n[i]);
115  }
116  /*weights: entries for 2 blocks: NULL*/
117  if (wvhdl==NULL)
118  r->wvhdl = (int **)omAlloc0((ord_size+1) * sizeof(int *));
119  else
120  r->wvhdl=wvhdl;
121  r->order = ord;
122  r->block0 = block0;
123  r->block1 = block1;
124  if (bitmask!=0) r->wanted_maxExp=bitmask;
125 
126  /* complete ring intializations */
127  rComplete(r);
128  return r;
129 }

◆ rDefault() [3/4]

ring rDefault ( int  ch,
int  N,
char **  n 
)

Definition at line 155 of file ring.cc.

156 {
157  coeffs cf;
158  if (ch==0) cf=nInitChar(n_Q,NULL);
159  else cf=nInitChar(n_Zp,(void*)(long)ch);
160  assume( cf != NULL);
161  return rDefault(cf,N,n);
162 }
@ n_Q
rational (GMP) numbers
Definition: coeffs.h:30
@ n_Zp
\F{p < 2^31}
Definition: coeffs.h:29
coeffs nInitChar(n_coeffType t, void *parameter)
one-time initialisations for new coeffs in case of an error return NULL
Definition: numbers.cc:354

◆ rDefault() [4/4]

ring rDefault ( int  ch,
int  N,
char **  n,
int  ord_size,
rRingOrder_t ord,
int *  block0,
int *  block1,
int **  wvhdl 
)

Definition at line 130 of file ring.cc.

131 {
132  coeffs cf;
133  if (ch==0) cf=nInitChar(n_Q,NULL);
134  else cf=nInitChar(n_Zp,(void*)(long)ch);
135  assume( cf != NULL);
136  return rDefault(cf,N,n,ord_size,ord,block0,block1,wvhdl);
137 }

◆ rDelete()

void rDelete ( ring  r)

unconditionally deletes fields in r

Definition at line 449 of file ring.cc.

450 {
451  int i, j;
452 
453  if (r == NULL) return;
454  if( r->ref > 0 ) // ->ref means the number of Interpreter objects referring to the ring...
455  return;
456 
457  if( r->qideal != NULL )
458  {
459  ideal q = r->qideal;
460  r->qideal = NULL;
461  id_Delete(&q, r);
462  }
463 
464 #ifdef HAVE_PLURAL
465  if (rIsPluralRing(r))
466  nc_rKill(r);
467 #endif
468 
469  rUnComplete(r); // may need r->cf for p_Delete
470  nKillChar(r->cf); r->cf = NULL;
471  // delete order stuff
472  if (r->order != NULL)
473  {
474  i=rBlocks(r);
475  assume(r->block0 != NULL && r->block1 != NULL && r->wvhdl != NULL);
476  // delete order
477  omFreeSize((ADDRESS)r->order,i*sizeof(rRingOrder_t));
478  omFreeSize((ADDRESS)r->block0,i*sizeof(int));
479  omFreeSize((ADDRESS)r->block1,i*sizeof(int));
480  // delete weights
481  for (j=0; j<i; j++)
482  {
483  if (r->wvhdl[j]!=NULL)
484  omFree(r->wvhdl[j]);
485  }
486  omFreeSize((ADDRESS)r->wvhdl,i*sizeof(int *));
487  }
488  else
489  {
490  assume(r->block0 == NULL && r->block1 == NULL && r->wvhdl == NULL);
491  }
492 
493  // delete varnames
494  if(r->names!=NULL)
495  {
496  for (i=0; i<r->N; i++)
497  {
498  if (r->names[i] != NULL) omFree((ADDRESS)r->names[i]);
499  }
500  omFreeSize((ADDRESS)r->names,r->N*sizeof(char *));
501  }
502 
504 }
void nKillChar(coeffs r)
undo all initialisations
Definition: numbers.cc:522
void nc_rKill(ring r)
complete destructor
Definition: old.gring.cc:2475
#define omFreeBin(addr, bin)
Definition: omAllocDecl.h:259

◆ rEnvelope()

ring rEnvelope ( ring  R)

Definition at line 5633 of file ring.cc.

5636 {
5637  ring Ropp = rOpposite(R);
5638  ring Renv = NULL;
5639  int stat = rSum(R, Ropp, Renv); /* takes care of qideals */
5640  if ( stat <=0 )
5641  WarnS("Error in rEnvelope at rSum");
5642  rTest(Renv);
5643  return Renv;
5644 }
int rSum(ring r1, ring r2, ring &sum)
Definition: ring.cc:1344
ring rOpposite(ring src)
Definition: ring.cc:5243

◆ rEqual()

BOOLEAN rEqual ( ring  r1,
ring  r2,
BOOLEAN  qr 
)

returns TRUE, if r1 equals r2 FALSE, otherwise Equality is determined componentwise, if qr == 1, then qrideal equality is tested, as well

Definition at line 1660 of file ring.cc.

1661 {
1662  if (r1 == r2) return TRUE;
1663  if (r1 == NULL || r2 == NULL) return FALSE;
1664  if (r1->cf!=r2->cf) return FALSE;
1665  if (rVar(r1)!=rVar(r2)) return FALSE;
1666  if (r1->bitmask!=r2->bitmask) return FALSE;
1667  #ifdef HAVE_SHIFTBBA
1668  if (r1->isLPring!=r2->isLPring) return FALSE;
1669  if (r1->LPncGenCount!=r2->LPncGenCount) return FALSE;
1670  #endif
1671 
1672  if( !rSamePolyRep(r1, r2) )
1673  return FALSE;
1674 
1675  int i/*, j*/;
1676 
1677  for (i=0; i<rVar(r1); i++)
1678  {
1679  if ((r1->names[i] != NULL) && (r2->names[i] != NULL))
1680  {
1681  if (strcmp(r1->names[i], r2->names[i])) return FALSE;
1682  }
1683  else if ((r1->names[i] != NULL) ^ (r2->names[i] != NULL))
1684  {
1685  return FALSE;
1686  }
1687  }
1688 
1689  if (qr)
1690  {
1691  if (r1->qideal != NULL)
1692  {
1693  ideal id1 = r1->qideal, id2 = r2->qideal;
1694  int i, n;
1695  poly *m1, *m2;
1696 
1697  if (id2 == NULL) return FALSE;
1698  if ((n = IDELEMS(id1)) != IDELEMS(id2)) return FALSE;
1699 
1700  {
1701  m1 = id1->m;
1702  m2 = id2->m;
1703  for (i=0; i<n; i++)
1704  if (! p_EqualPolys(m1[i],m2[i], r1, r2)) return FALSE;
1705  }
1706  }
1707  else if (r2->qideal != NULL) return FALSE;
1708  }
1709 
1710  return TRUE;
1711 }
Definition: qr.h:46
BOOLEAN p_EqualPolys(poly p1, poly p2, const ring r)
Definition: p_polys.cc:4545
BOOLEAN rSamePolyRep(ring r1, ring r2)
returns TRUE, if r1 and r2 represents the monomials in the same way FALSE, otherwise this is an analo...
Definition: ring.cc:1713
#define IDELEMS(i)
Definition: simpleideals.h:23

◆ rGetDivMask()

static unsigned long rGetDivMask ( int  bits)
static

get r->divmask depending on bits per exponent

Definition at line 4053 of file ring.cc.

4054 {
4055  unsigned long divmask = 1;
4056  int i = bits;
4057 
4058  while (i < BIT_SIZEOF_LONG)
4059  {
4060  divmask |= (((unsigned long) 1) << (unsigned long) i);
4061  i += bits;
4062  }
4063  return divmask;
4064 }

◆ rGetExpSize() [1/2]

static unsigned long rGetExpSize ( unsigned long  bitmask,
int &  bits 
)
static

Definition at line 2510 of file ring.cc.

2511 {
2512  if (bitmask == 0)
2513  {
2514  bits=16; bitmask=0xffff;
2515  }
2516  else if (bitmask <= 1L)
2517  {
2518  bits=1; bitmask = 1L;
2519  }
2520  else if (bitmask <= 3L)
2521  {
2522  bits=2; bitmask = 3L;
2523  }
2524  else if (bitmask <= 7L)
2525  {
2526  bits=3; bitmask=7L;
2527  }
2528  else if (bitmask <= 0xfL)
2529  {
2530  bits=4; bitmask=0xfL;
2531  }
2532  else if (bitmask <= 0x1fL)
2533  {
2534  bits=5; bitmask=0x1fL;
2535  }
2536  else if (bitmask <= 0x3fL)
2537  {
2538  bits=6; bitmask=0x3fL;
2539  }
2540 #if SIZEOF_LONG == 8
2541  else if (bitmask <= 0x7fL)
2542  {
2543  bits=7; bitmask=0x7fL; /* 64 bit longs only */
2544  }
2545 #endif
2546  else if (bitmask <= 0xffL)
2547  {
2548  bits=8; bitmask=0xffL;
2549  }
2550 #if SIZEOF_LONG == 8
2551  else if (bitmask <= 0x1ffL)
2552  {
2553  bits=9; bitmask=0x1ffL; /* 64 bit longs only */
2554  }
2555 #endif
2556  else if (bitmask <= 0x3ffL)
2557  {
2558  bits=10; bitmask=0x3ffL;
2559  }
2560 #if SIZEOF_LONG == 8
2561  else if (bitmask <= 0xfffL)
2562  {
2563  bits=12; bitmask=0xfff; /* 64 bit longs only */
2564  }
2565 #endif
2566  else if (bitmask <= 0xffffL)
2567  {
2568  bits=16; bitmask=0xffffL;
2569  }
2570 #if SIZEOF_LONG == 8
2571  else if (bitmask <= 0xfffffL)
2572  {
2573  bits=20; bitmask=0xfffffL; /* 64 bit longs only */
2574  }
2575  else if (bitmask <= 0xffffffffL)
2576  {
2577  bits=32; bitmask=0xffffffffL;
2578  }
2579  else if (bitmask <= 0x7fffffffffffffffL)
2580  {
2581  bits=63; bitmask=0x7fffffffffffffffL; /* for overflow tests*/
2582  }
2583  else
2584  {
2585  bits=63; bitmask=0x7fffffffffffffffL; /* for overflow tests*/
2586  }
2587 #else
2588  else if (bitmask <= 0x7fffffff)
2589  {
2590  bits=31; bitmask=0x7fffffff; /* for overflow tests*/
2591  }
2592  else
2593  {
2594  bits=31; bitmask=0x7fffffffL; /* for overflow tests*/
2595  }
2596 #endif
2597  return bitmask;
2598 }

◆ rGetExpSize() [2/2]

unsigned long rGetExpSize ( unsigned long  bitmask,
int &  bits,
int  N 
)

Definition at line 2603 of file ring.cc.

2604 {
2605 #if SIZEOF_LONG == 8
2606  if (N<4) N=4;
2607 #else
2608  if (N<2) N=2;
2609 #endif
2610  bitmask =rGetExpSize(bitmask, bits);
2611  int vars_per_long=BIT_SIZEOF_LONG/bits;
2612  int bits1;
2613  loop
2614  {
2615  if (bits == BIT_SIZEOF_LONG-1)
2616  {
2617  bits = BIT_SIZEOF_LONG - 1;
2618  return LONG_MAX;
2619  }
2620  unsigned long bitmask1 =rGetExpSize(bitmask+1, bits1);
2621  int vars_per_long1=BIT_SIZEOF_LONG/bits1;
2622  if ((((N+vars_per_long-1)/vars_per_long) ==
2623  ((N+vars_per_long1-1)/vars_per_long1)))
2624  {
2625  vars_per_long=vars_per_long1;
2626  bits=bits1;
2627  bitmask=bitmask1;
2628  }
2629  else
2630  {
2631  return bitmask; /* and bits */
2632  }
2633  }
2634 }
#define loop
Definition: structs.h:79

◆ rGetISPos()

int rGetISPos ( const int  p,
const ring  r 
)

Finds p^th IS ordering, and returns its position in r->typ[] returns -1 if something went wrong! p - starts with 0!

return the position of the p^th IS block order block in r->typ[]...

Definition at line 4941 of file ring.cc.

4942 {
4943  // Put the reference set F into the ring -ordering -recor
4944 #if MYTEST
4945  Print("rIsIS(p: %d)\nF:", p);
4946  PrintLn();
4947 #endif
4948 
4949  if (r->typ==NULL)
4950  {
4951 // dReportError("'rIsIS:' Error: wrong ring! (typ == NULL)");
4952  return -1;
4953  }
4954 
4955  int j = p; // Which IS record to use...
4956  for( int pos = 0; pos < r->OrdSize; pos++ )
4957  if( r->typ[pos].ord_typ == ro_is)
4958  if( j-- == 0 )
4959  return pos;
4960 
4961  return -1;
4962 }

◆ rGetMaxSyzComp()

int rGetMaxSyzComp ( int  i,
const ring  r 
)

return the max-comonent wchich has syzIndex i Assume: i<= syzIndex_limit

Definition at line 5099 of file ring.cc.

5100 {
5101  if ((r->typ!=NULL) && (r->typ[0].ord_typ==ro_syz) &&
5102  r->typ[0].data.syz.limit > 0 && i > 0)
5103  {
5104  assume(i <= r->typ[0].data.syz.limit);
5105  int j;
5106  for (j=0; j<r->typ[0].data.syz.limit; j++)
5107  {
5108  if (r->typ[0].data.syz.syz_index[j] == i &&
5109  r->typ[0].data.syz.syz_index[j+1] != i)
5110  {
5111  assume(r->typ[0].data.syz.syz_index[j+1] == i+1);
5112  return j;
5113  }
5114  }
5115  return r->typ[0].data.syz.limit;
5116  }
5117  else
5118  {
5119  #ifndef SING_NDEBUG
5120  WarnS("rGetMaxSyzComp: order c");
5121  #endif
5122  return 0;
5123  }
5124 }

◆ rGetOrderType()

rOrderType_t rGetOrderType ( ring  r)

Definition at line 1754 of file ring.cc.

1755 {
1756  // check for simple ordering
1757  if (rHasSimpleOrder(r))
1758  {
1759  if ((r->order[1] == ringorder_c)
1760  || (r->order[1] == ringorder_C))
1761  {
1762  switch(r->order[0])
1763  {
1764  case ringorder_dp:
1765  case ringorder_wp:
1766  case ringorder_ds:
1767  case ringorder_ws:
1768  case ringorder_ls:
1769  case ringorder_unspec:
1770  if (r->order[1] == ringorder_C
1771  || r->order[0] == ringorder_unspec)
1772  return rOrderType_ExpComp;
1773  return rOrderType_Exp;
1774 
1775  default:
1776  assume(r->order[0] == ringorder_lp ||
1777  r->order[0] == ringorder_rs ||
1778  r->order[0] == ringorder_Dp ||
1779  r->order[0] == ringorder_Wp ||
1780  r->order[0] == ringorder_Ds ||
1781  r->order[0] == ringorder_Ws);
1782 
1783  if (r->order[1] == ringorder_c) return rOrderType_ExpComp;
1784  return rOrderType_Exp;
1785  }
1786  }
1787  else
1788  {
1789  assume((r->order[0]==ringorder_c)||(r->order[0]==ringorder_C));
1790  return rOrderType_CompExp;
1791  }
1792  }
1793  else
1794  return rOrderType_General;
1795 }
BOOLEAN rHasSimpleOrder(const ring r)
Definition: ring.cc:1801
@ rOrderType_CompExp
simple ordering, component has priority
Definition: ring.h:100
@ rOrderType_Exp
simple ordering, exponent vector has priority component is compatible with exp-vector order
Definition: ring.h:103
@ rOrderType_General
non-simple ordering as specified by currRing
Definition: ring.h:99
@ rOrderType_ExpComp
simple ordering, exponent vector has priority component not compatible with exp-vector order
Definition: ring.h:101

◆ rGetSComps()

void rGetSComps ( int **  currComponents,
long **  currShiftedComponents,
int *  length,
ring  r 
)

Definition at line 4397 of file ring.cc.

4398 {
4399 #ifdef PDEBUG
4400  rDBGetSComps(currComponents, currShiftedComponents, length, r);
4401 #else
4402  rNGetSComps(currComponents, currShiftedComponents, r);
4403 #endif
4404 }
static void rDBGetSComps(int **currComponents, long **currShiftedComponents, int *length, ring r)
Definition: ring.cc:4376

◆ rGetVar()

poly rGetVar ( const int  varIndex,
const ring  r 
)

Definition at line 5748 of file ring.cc.

5749 {
5750  poly p = p_ISet(1, r);
5751  p_SetExp(p, varIndex, 1, r);
5752  p_Setm(p, r);
5753  return p;
5754 }
poly p_ISet(long i, const ring r)
returns the poly representing the integer i
Definition: p_polys.cc:1293
static unsigned long p_SetExp(poly p, const unsigned long e, const unsigned long iBitmask, const int VarOffset)
set a single variable exponent @Note: VarOffset encodes the position in p->exp
Definition: p_polys.h:488
static void p_Setm(poly p, const ring r)
Definition: p_polys.h:233

◆ rGetWeightVec()

int64* rGetWeightVec ( const ring  r)

Definition at line 5184 of file ring.cc.

5185 {
5186  assume(r!=NULL);
5187  assume(r->OrdSize>0);
5188  int i=0;
5189  while((r->typ[i].ord_typ!=ro_wp64) && (r->typ[i].ord_typ>0)) i++;
5190  assume(r->typ[i].ord_typ==ro_wp64);
5191  return (int64*)(r->typ[i].data.wp64.weights64);
5192 }

◆ rHas_c_Ordering()

BOOLEAN rHas_c_Ordering ( const ring  r)

Definition at line 1797 of file ring.cc.

1798 {
1799  return (r->order[0] == ringorder_c);
1800 }

◆ rHasSimpleLexOrder()

BOOLEAN rHasSimpleLexOrder ( const ring  r)

returns TRUE, if simple lp or ls ordering

Definition at line 1833 of file ring.cc.

1834 {
1835  return rHasSimpleOrder(r) &&
1836  (r->order[0] == ringorder_ls ||
1837  r->order[0] == ringorder_lp ||
1838  r->order[1] == ringorder_ls ||
1839  r->order[1] == ringorder_lp);
1840 }

◆ rHasSimpleOrder()

BOOLEAN rHasSimpleOrder ( const ring  r)

Definition at line 1801 of file ring.cc.

1802 {
1803  if (r->order[0] == ringorder_unspec) return TRUE;
1804  int blocks = rBlocks(r) - 1;
1805  assume(blocks >= 1);
1806  if (blocks == 1) return TRUE;
1807 
1808  int s = 0;
1809  while( (s < blocks) && (r->order[s] == ringorder_IS) && (r->order[blocks-1] == ringorder_IS) )
1810  {
1811  s++;
1812  blocks--;
1813  }
1814 
1815  if ((blocks - s) > 2) return FALSE;
1816 
1817  assume( blocks == s + 2 );
1818 
1819  if (
1820  (r->order[s] != ringorder_c)
1821  && (r->order[s] != ringorder_C)
1822  && (r->order[s+1] != ringorder_c)
1823  && (r->order[s+1] != ringorder_C)
1824  )
1825  return FALSE;
1826  if ((r->order[s+1] == ringorder_M)
1827  || (r->order[s] == ringorder_M))
1828  return FALSE;
1829  return TRUE;
1830 }

◆ rHasSimpleOrderAA()

BOOLEAN rHasSimpleOrderAA ( ring  r)

Definition at line 1876 of file ring.cc.

1877 {
1878  if (r->order[0] == ringorder_unspec) return TRUE;
1879  int blocks = rBlocks(r) - 1;
1880  assume(blocks >= 1);
1881  if (blocks == 1) return TRUE;
1882 
1883  int s = 0;
1884  while( (s < blocks) && (r->order[s] == ringorder_IS) && (r->order[blocks-1] == ringorder_IS) )
1885  {
1886  s++;
1887  blocks--;
1888  }
1889 
1890  if ((blocks - s) > 3) return FALSE;
1891 
1892 // if ((blocks > 3) || (blocks < 2)) return FALSE;
1893  if ((blocks - s) == 3)
1894  {
1895  return (((r->order[s] == ringorder_aa) && (r->order[s+1] != ringorder_M) &&
1896  ((r->order[s+2] == ringorder_c) || (r->order[s+2] == ringorder_C))) ||
1897  (((r->order[s] == ringorder_c) || (r->order[s] == ringorder_C)) &&
1898  (r->order[s+1] == ringorder_aa) && (r->order[s+2] != ringorder_M)));
1899  }
1900  else
1901  {
1902  return ((r->order[s] == ringorder_aa) && (r->order[s+1] != ringorder_M));
1903  }
1904 }

◆ rIsPolyVar()

BOOLEAN rIsPolyVar ( int  v,
const ring  r 
)

returns TRUE if var(i) belongs to p-block

Definition at line 1950 of file ring.cc.

1951 {
1952  int i=0;
1953  while(r->order[i]!=0)
1954  {
1955  if((r->block0[i]<=v)
1956  && (r->block1[i]>=v))
1957  {
1958  switch(r->order[i])
1959  {
1960  case ringorder_a:
1961  return (r->wvhdl[i][v-r->block0[i]]>0);
1962  case ringorder_M:
1963  return 2; /*don't know*/
1964  case ringorder_a64: /* assume: all weight are non-negative!*/
1965  case ringorder_lp:
1966  case ringorder_rs:
1967  case ringorder_dp:
1968  case ringorder_Dp:
1969  case ringorder_wp:
1970  case ringorder_Wp:
1971  return TRUE;
1972  case ringorder_ls:
1973  case ringorder_ds:
1974  case ringorder_Ds:
1975  case ringorder_ws:
1976  case ringorder_Ws:
1977  return FALSE;
1978  default:
1979  break;
1980  }
1981  }
1982  i++;
1983  }
1984  return 3; /* could not find var v*/
1985 }

◆ rKillModified_Wp_Ring()

void rKillModified_Wp_Ring ( ring  r)

Definition at line 3014 of file ring.cc.

3015 {
3016  rUnComplete(r);
3017  omFree(r->order);
3018  omFree(r->block0);
3019  omFree(r->block1);
3020  omFree(r->wvhdl[0]);
3021  omFree(r->wvhdl);
3023 }

◆ rKillModifiedRing()

void rKillModifiedRing ( ring  r)

Definition at line 3004 of file ring.cc.

3005 {
3006  rUnComplete(r);
3007  omFree(r->order);
3008  omFree(r->block0);
3009  omFree(r->block1);
3010  omFree(r->wvhdl);
3012 }

◆ rMinusVar()

ring rMinusVar ( const ring  r,
char *  v 
)

undo rPlusVar

Definition at line 5861 of file ring.cc.

5862 {
5863  if (r->order[2]!=0)
5864  {
5865  WerrorS("only for rings with an ordering of one block");
5866  return NULL;
5867  }
5868  int p;
5869  if((r->order[0]==ringorder_C)
5870  ||(r->order[0]==ringorder_c))
5871  p=1;
5872  else
5873  p=0;
5874  if((r->order[p]!=ringorder_dp)
5875  && (r->order[p]!=ringorder_Dp)
5876  && (r->order[p]!=ringorder_lp)
5877  && (r->order[p]!=ringorder_rp)
5878  && (r->order[p]!=ringorder_ds)
5879  && (r->order[p]!=ringorder_Ds)
5880  && (r->order[p]!=ringorder_ls))
5881  {
5882  WerrorS("ordering must be dp,Dp,lp,rp,ds,Ds or ls");
5883  return NULL;
5884  }
5885  ring R=rCopy0(r);
5886  int i=R->N-1;
5887  while(i>=0)
5888  {
5889  if (strcmp(R->names[i],v)==0)
5890  {
5891  R->N--;
5892  omFree(R->names[i]);
5893  for(int j=i;j<R->N;j++) R->names[j]=R->names[j+1];
5894  R->names=(char**)omReallocSize(R->names,r->N*sizeof(char_ptr),R->N*sizeof(char_ptr));
5895  }
5896  i--;
5897  }
5898  R->block1[p]=R->N;
5899  rComplete(R,1);
5900  return R;
5901 }
#define omReallocSize(addr, o_size, size)
Definition: omAllocDecl.h:220
char * char_ptr
Definition: structs.h:57

◆ rModify_a_to_A()

void rModify_a_to_A ( ring  r)

Definition at line 5725 of file ring.cc.

5728 {
5729  int i=0;
5730  int j;
5731  while(r->order[i]!=0)
5732  {
5733  if (r->order[i]==ringorder_a)
5734  {
5735  r->order[i]=ringorder_a64;
5736  int *w=r->wvhdl[i];
5737  int64 *w64=(int64 *)omAlloc((r->block1[i]-r->block0[i]+1)*sizeof(int64));
5738  for(j=r->block1[i]-r->block0[i];j>=0;j--)
5739  w64[j]=(int64)w[j];
5740  r->wvhdl[i]=(int*)w64;
5741  omFreeSize(w,(r->block1[i]-r->block0[i]+1)*sizeof(int));
5742  }
5743  i++;
5744  }
5745 }
const CanonicalForm & w
Definition: facAbsFact.cc:51

◆ rModifyRing()

ring rModifyRing ( ring  r,
BOOLEAN  omit_degree,
BOOLEAN  try_omit_comp,
unsigned long  exp_limit 
)

< How many induced ordering block do we have?

Definition at line 2643 of file ring.cc.

2646 {
2647  assume (r != NULL );
2648  assume (exp_limit > 1);
2649  BOOLEAN omitted_degree = FALSE;
2650 
2651  int bits;
2652  exp_limit=rGetExpSize(exp_limit, bits, r->N);
2653  BOOLEAN need_other_ring = (exp_limit != r->bitmask);
2654 
2655  int iNeedInducedOrderingSetup = 0; ///< How many induced ordering block do we have?
2656 
2657  int nblocks=rBlocks(r);
2658  rRingOrder_t *order=(rRingOrder_t*)omAlloc0((nblocks+1)*sizeof(rRingOrder_t));
2659  int *block0=(int*)omAlloc0((nblocks+1)*sizeof(int));
2660  int *block1=(int*)omAlloc0((nblocks+1)*sizeof(int));
2661  int **wvhdl=(int**)omAlloc0((nblocks+1)*sizeof(int *));
2662 
2663  int i=0;
2664  int j=0; /* i index in r, j index in res */
2665 
2666  for( rRingOrder_t r_ord=r->order[i]; (r_ord != (rRingOrder_t)0) && (i < nblocks); j++, r_ord=r->order[++i])
2667  {
2668  BOOLEAN copy_block_index=TRUE;
2669 
2670  if (r->block0[i]==r->block1[i])
2671  {
2672  switch(r_ord)
2673  {
2674  case ringorder_wp:
2675  case ringorder_dp:
2676  case ringorder_Wp:
2677  case ringorder_Dp:
2678  r_ord=ringorder_lp;
2679  break;
2680  case ringorder_Ws:
2681  case ringorder_Ds:
2682  case ringorder_ws:
2683  case ringorder_ds:
2684  r_ord=ringorder_ls;
2685  break;
2686  default:
2687  break;
2688  }
2689  }
2690  switch(r_ord)
2691  {
2692  case ringorder_S:
2693  {
2694 #ifndef SING_NDEBUG
2695  Warn("Error: unhandled ordering in rModifyRing: ringorder_S = [%d]", r_ord);
2696 #endif
2697  order[j]=r_ord; /*r->order[i];*/
2698  break;
2699  }
2700  case ringorder_C:
2701  case ringorder_c:
2702  if (!try_omit_comp)
2703  {
2704  order[j]=r_ord; /*r->order[i]*/;
2705  }
2706  else
2707  {
2708  j--;
2709  need_other_ring=TRUE;
2710  try_omit_comp=FALSE;
2711  copy_block_index=FALSE;
2712  }
2713  break;
2714  case ringorder_wp:
2715  case ringorder_dp:
2716  case ringorder_ws:
2717  case ringorder_ds:
2718  if(!omit_degree)
2719  {
2720  order[j]=r_ord; /*r->order[i]*/;
2721  }
2722  else
2723  {
2724  order[j]=ringorder_rs;
2725  need_other_ring=TRUE;
2726  omit_degree=FALSE;
2727  omitted_degree = TRUE;
2728  }
2729  break;
2730  case ringorder_Wp:
2731  case ringorder_Dp:
2732  case ringorder_Ws:
2733  case ringorder_Ds:
2734  if(!omit_degree)
2735  {
2736  order[j]=r_ord; /*r->order[i];*/
2737  }
2738  else
2739  {
2740  order[j]=ringorder_lp;
2741  need_other_ring=TRUE;
2742  omit_degree=FALSE;
2743  omitted_degree = TRUE;
2744  }
2745  break;
2746  case ringorder_IS:
2747  {
2748  if (try_omit_comp)
2749  {
2750  // tried, but cannot omit component due to the ordering block [%d]: %d (ringorder_IS)", i, r_ord
2751  try_omit_comp = FALSE;
2752  }
2753  order[j]=r_ord; /*r->order[i];*/
2754  iNeedInducedOrderingSetup++;
2755  break;
2756  }
2757  case ringorder_s:
2758  {
2759  assume((i == 0) && (j == 0));
2760  if (try_omit_comp)
2761  {
2762  // tried, but cannot omit component due to the ordering block [%d]: %d (ringorder_s)", i, r_ord
2763  try_omit_comp = FALSE;
2764  }
2765  order[j]=r_ord; /*r->order[i];*/
2766  break;
2767  }
2768  default:
2769  order[j]=r_ord; /*r->order[i];*/
2770  break;
2771  }
2772  if (copy_block_index)
2773  {
2774  block0[j]=r->block0[i];
2775  block1[j]=r->block1[i];
2776  wvhdl[j]=r->wvhdl[i];
2777  }
2778 
2779  // order[j]=ringorder_no; // done by omAlloc0
2780  }
2781  if(!need_other_ring)
2782  {
2783  omFreeSize(order,(nblocks+1)*sizeof(rRingOrder_t));
2784  omFreeSize(block0,(nblocks+1)*sizeof(int));
2785  omFreeSize(block1,(nblocks+1)*sizeof(int));
2786  omFreeSize(wvhdl,(nblocks+1)*sizeof(int *));
2787  return r;
2788  }
2789  ring res=(ring)omAlloc0Bin(sip_sring_bin);
2790  *res = *r;
2791 
2792 #ifdef HAVE_PLURAL
2793  res->GetNC() = NULL;
2794 #endif
2795 
2796  // res->qideal, res->idroot ???
2797  res->wvhdl=wvhdl;
2798  res->order=order;
2799  res->block0=block0;
2800  res->block1=block1;
2801  res->bitmask=exp_limit;
2802  res->wanted_maxExp=r->wanted_maxExp;
2803  //int tmpref=r->cf->ref0;
2804  rComplete(res, 1);
2805  //r->cf->ref=tmpref;
2806 
2807  // adjust res->pFDeg: if it was changed globally, then
2808  // it must also be changed for new ring
2809  if (r->pFDegOrig != res->pFDegOrig &&
2811  {
2812  // still might need adjustment for weighted orderings
2813  // and omit_degree
2814  res->firstwv = r->firstwv;
2815  res->firstBlockEnds = r->firstBlockEnds;
2816  res->pFDeg = res->pFDegOrig = p_WFirstTotalDegree;
2817  }
2818  if (omitted_degree)
2819  res->pLDeg = r->pLDegOrig;
2820 
2821  rOptimizeLDeg(res); // also sets res->pLDegOrig
2822 
2823  // set syzcomp
2824  if (res->typ != NULL)
2825  {
2826  if( res->typ[0].ord_typ == ro_syz) // "s" Always on [0] place!
2827  {
2828  res->typ[0] = r->typ[0]; // Copy struct!? + setup the same limit!
2829 
2830  if (r->typ[0].data.syz.limit > 0)
2831  {
2832  res->typ[0].data.syz.syz_index
2833  = (int*) omAlloc((r->typ[0].data.syz.limit +1)*sizeof(int));
2834  memcpy(res->typ[0].data.syz.syz_index, r->typ[0].data.syz.syz_index,
2835  (r->typ[0].data.syz.limit +1)*sizeof(int));
2836  }
2837  }
2838 
2839  if( iNeedInducedOrderingSetup > 0 )
2840  {
2841  for(j = 0, i = 0; (i < nblocks) && (iNeedInducedOrderingSetup > 0); i++)
2842  if( res->typ[i].ord_typ == ro_is ) // Search for suffixes!
2843  {
2844  ideal F = idrHeadR(r->typ[i].data.is.F, r, res); // Copy F from r into res!
2845  assume(
2847  F, // WILL BE COPIED!
2848  r->typ[i].data.is.limit,
2849  j++
2850  )
2851  );
2852  id_Delete(&F, res);
2853  iNeedInducedOrderingSetup--;
2854  }
2855  } // Process all induced Ordering blocks! ...
2856  }
2857  // the special case: homog (omit_degree) and 1 block rs: that is global:
2858  // it comes from dp
2859  res->OrdSgn=r->OrdSgn;
2860 
2861 
2862 #ifdef HAVE_PLURAL
2863  if (rIsPluralRing(r))
2864  {
2865  if ( nc_rComplete(r, res, false) ) // no qideal!
2866  {
2867 #ifndef SING_NDEBUG
2868  WarnS("error in nc_rComplete");
2869 #endif
2870  // cleanup?
2871 
2872 // rDelete(res);
2873 // return r;
2874 
2875  // just go on..
2876  }
2877 
2878  if( rIsSCA(r) )
2879  {
2880  if( !sca_Force(res, scaFirstAltVar(r), scaLastAltVar(r)) )
2881  WarnS("error in sca_Force!");
2882  }
2883  }
2884 #endif
2885 
2886  return res;
2887 }
#define Warn
Definition: emacs.cc:77
bool sca_Force(ring rGR, int b, int e)
Definition: sca.cc:1161
ideal idrHeadR(ideal id, ring r, ring dest_r)
Copy leading terms of id[i] via prHeeadR into dest_r.
Definition: prCopy.cc:155
BOOLEAN rSetISReference(const ring r, const ideal F, const int i, const int p)
Changes r by setting induced ordering parameters: limit and reference leading terms F belong to r,...
Definition: ring.cc:4973
static void rOptimizeLDeg(ring r)
Definition: ring.cc:3095
BOOLEAN rOrd_is_WeightedDegree_Ordering(const ring r)
Definition: ring.cc:1941
static short scaLastAltVar(ring r)
Definition: sca.h:25
static short scaFirstAltVar(ring r)
Definition: sca.h:18

◆ rModifyRing_Simple()

ring rModifyRing_Simple ( ring  r,
BOOLEAN  ommit_degree,
BOOLEAN  ommit_comp,
unsigned long  exp_limit,
BOOLEAN simple 
)

Definition at line 2938 of file ring.cc.

2939 {
2940  simple=TRUE;
2941  if (!rHasSimpleOrder(r))
2942  {
2943  simple=FALSE; // sorting needed
2944  assume (r != NULL );
2945  assume (exp_limit > 1);
2946  int bits;
2947 
2948  exp_limit=rGetExpSize(exp_limit, bits, r->N);
2949 
2950  int nblocks=1+(ommit_comp!=0);
2951  rRingOrder_t *order=(rRingOrder_t*)omAlloc0((nblocks+1)*sizeof(rRingOrder_t));
2952  int *block0=(int*)omAlloc0((nblocks+1)*sizeof(int));
2953  int *block1=(int*)omAlloc0((nblocks+1)*sizeof(int));
2954  int **wvhdl=(int**)omAlloc0((nblocks+1)*sizeof(int *));
2955 
2956  order[0]=ringorder_lp;
2957  block0[0]=1;
2958  block1[0]=r->N;
2959  if (!ommit_comp)
2960  {
2961  order[1]=ringorder_C;
2962  }
2963  ring res=(ring)omAlloc0Bin(sip_sring_bin);
2964  *res = *r;
2965 #ifdef HAVE_PLURAL
2966  res->GetNC() = NULL;
2967 #endif
2968  // res->qideal, res->idroot ???
2969  res->wvhdl=wvhdl;
2970  res->order=order;
2971  res->block0=block0;
2972  res->block1=block1;
2973  res->bitmask=exp_limit;
2974  res->wanted_maxExp=r->wanted_maxExp;
2975  //int tmpref=r->cf->ref;
2976  rComplete(res, 1);
2977  //r->cf->ref=tmpref;
2978 
2979 #ifdef HAVE_PLURAL
2980  if (rIsPluralRing(r))
2981  {
2982  if ( nc_rComplete(r, res, false) ) // no qideal!
2983  {
2984 #ifndef SING_NDEBUG
2985  WarnS("error in nc_rComplete");
2986 #endif
2987  // cleanup?
2988 
2989 // rDelete(res);
2990 // return r;
2991 
2992  // just go on..
2993  }
2994  }
2995 #endif
2996 
2997  rOptimizeLDeg(res);
2998 
2999  return res;
3000  }
3001  return rModifyRing(r, ommit_degree, ommit_comp, exp_limit);
3002 }
ring rModifyRing(ring r, BOOLEAN omit_degree, BOOLEAN try_omit_comp, unsigned long exp_limit)
Definition: ring.cc:2643

◆ rModifyRing_Wp()

ring rModifyRing_Wp ( ring  r,
int *  weights 
)

construct Wp, C ring

Definition at line 2890 of file ring.cc.

2891 {
2892  ring res=(ring)omAlloc0Bin(sip_sring_bin);
2893  *res = *r;
2894 #ifdef HAVE_PLURAL
2895  res->GetNC() = NULL;
2896 #endif
2897 
2898  /*weights: entries for 3 blocks: NULL*/
2899  res->wvhdl = (int **)omAlloc0(3 * sizeof(int *));
2900  /*order: Wp,C,0*/
2901  res->order = (rRingOrder_t *) omAlloc(3 * sizeof(rRingOrder_t *));
2902  res->block0 = (int *)omAlloc0(3 * sizeof(int *));
2903  res->block1 = (int *)omAlloc0(3 * sizeof(int *));
2904  /* ringorder Wp for the first block: var 1..r->N */
2905  res->order[0] = ringorder_Wp;
2906  res->block0[0] = 1;
2907  res->block1[0] = r->N;
2908  res->wvhdl[0] = weights;
2909  /* ringorder C for the second block: no vars */
2910  res->order[1] = ringorder_C;
2911  /* the last block: everything is 0 */
2912  res->order[2] = (rRingOrder_t)0;
2913 
2914  //int tmpref=r->cf->ref;
2915  rComplete(res, 1);
2916  //r->cf->ref=tmpref;
2917 #ifdef HAVE_PLURAL
2918  if (rIsPluralRing(r))
2919  {
2920  if ( nc_rComplete(r, res, false) ) // no qideal!
2921  {
2922 #ifndef SING_NDEBUG
2923  WarnS("error in nc_rComplete");
2924 #endif
2925  // cleanup?
2926 
2927 // rDelete(res);
2928 // return r;
2929 
2930  // just go on..
2931  }
2932  }
2933 #endif
2934  return res;
2935 }

◆ rNChangeSComps()

static void rNChangeSComps ( int *  currComponents,
long *  currShiftedComponents,
ring  r 
)
inlinestatic

Definition at line 4350 of file ring.cc.

4351 {
4352  assume(r->typ[1].ord_typ == ro_syzcomp);
4353 
4354  r->typ[1].data.syzcomp.ShiftedComponents = currShiftedComponents;
4355  r->typ[1].data.syzcomp.Components = currComponents;
4356 }

◆ rNGetSComps()

static void rNGetSComps ( int **  currComponents,
long **  currShiftedComponents,
ring  r 
)
inlinestatic

Definition at line 4358 of file ring.cc.

4359 {
4360  assume(r->typ[1].ord_typ == ro_syzcomp);
4361 
4362  *currShiftedComponents = r->typ[1].data.syzcomp.ShiftedComponents;
4363  *currComponents = r->typ[1].data.syzcomp.Components;
4364 }

◆ rO_Align()

static void rO_Align ( int &  place,
int &  bitplace 
)
static

Definition at line 2139 of file ring.cc.

2140 {
2141  // increment place to the next aligned one
2142  // (count as Exponent_t,align as longs)
2143  if (bitplace!=BITS_PER_LONG)
2144  {
2145  place++;
2146  bitplace=BITS_PER_LONG;
2147  }
2148 }

◆ rO_ISPrefix()

static void rO_ISPrefix ( int &  place,
int &  bitplace,
int &  prev_ord,
long *  o,
int  ,
int *  v,
sro_ord ord_struct 
)
static

Definition at line 2401 of file ring.cc.

2403 {
2404  if ((prev_ord== 1) || (bitplace!=BITS_PER_LONG))
2405  rO_Align(place,bitplace);
2406  // since we add something afterwards - it's better to start with anew!?
2407 
2408  ord_struct.ord_typ = ro_isTemp;
2409  ord_struct.data.isTemp.start = place;
2410  ord_struct.data.isTemp.pVarOffset = (int *)omMemDup(v);
2411  ord_struct.data.isTemp.suffixpos = -1;
2412 
2413  // We will act as rO_Syz on our own!!!
2414  // Here we allocate an exponent as a level placeholder
2415  o[place]= -1;
2416  prev_ord=-1;
2417  place++;
2418 }
ro_typ ord_typ
Definition: ring.h:220
union sro_ord::@0 data

◆ rO_ISSuffix()

static void rO_ISSuffix ( int &  place,
int &  bitplace,
int &  prev_ord,
long *  o,
int  N,
int *  v,
sro_ord tmp_typ,
int &  typ_i,
int  sgn 
)
static

Definition at line 2419 of file ring.cc.

2421 {
2422 
2423  // Let's find previous prefix:
2424  int typ_j = typ_i - 1;
2425  while(typ_j >= 0)
2426  {
2427  if( tmp_typ[typ_j].ord_typ == ro_isTemp)
2428  break;
2429  typ_j --;
2430  }
2431 
2432  assume( typ_j >= 0 );
2433 
2434  if( typ_j < 0 ) // Found NO prefix!!! :(
2435  return;
2436 
2437  assume( tmp_typ[typ_j].ord_typ == ro_isTemp );
2438 
2439  // Get saved state:
2440  const int start = tmp_typ[typ_j].data.isTemp.start;
2441  int *pVarOffset = tmp_typ[typ_j].data.isTemp.pVarOffset;
2442 
2443 /*
2444  // shift up all blocks
2445  while(typ_j < (typ_i-1))
2446  {
2447  tmp_typ[typ_j] = tmp_typ[typ_j+1];
2448  typ_j++;
2449  }
2450  typ_j = typ_i - 1; // No increment for typ_i
2451 */
2452  tmp_typ[typ_j].data.isTemp.suffixpos = typ_i;
2453 
2454  // Let's keep that dummy for now...
2455  typ_j = typ_i; // the typ to change!
2456  typ_i++; // Just for now...
2457 
2458 
2459  for( int i = 0; i <= N; i++ ) // Note [0] == component !!! No Skip?
2460  {
2461  // Was i-th variable allocated inbetween?
2462  if( v[i] != pVarOffset[i] )
2463  {
2464  pVarOffset[i] = v[i]; // Save for later...
2465  v[i] = -1; // Undo!
2466  assume( pVarOffset[i] != -1 );
2467  }
2468  else
2469  pVarOffset[i] = -1; // No change here...
2470  }
2471 
2472  if( pVarOffset[0] != -1 )
2473  pVarOffset[0] &= 0x0fff;
2474 
2475  sro_ord &ord_struct = tmp_typ[typ_j];
2476 
2477 
2478  ord_struct.ord_typ = ro_is;
2479  ord_struct.data.is.start = start;
2480  ord_struct.data.is.end = place;
2481  ord_struct.data.is.pVarOffset = pVarOffset;
2482 
2483 
2484  // What about component???
2485 // if( v[0] != -1 ) // There is a component already...???
2486 // if( o[ v[0] & 0x0fff ] == sgn )
2487 // {
2488 // pVarOffset[0] = -1; // NEVER USED Afterwards...
2489 // return;
2490 // }
2491 
2492 
2493  // Moreover: we need to allocate the module component (v[0]) here!
2494  if( v[0] == -1) // It's possible that there was module component v0 at the begining (before prefix)!
2495  {
2496  // Start with a whole long exponent
2497  if( bitplace != BITS_PER_LONG )
2498  rO_Align(place, bitplace);
2499 
2500  assume( bitplace == BITS_PER_LONG );
2501  bitplace -= BITS_PER_LONG;
2502  assume(bitplace == 0);
2503  v[0] = place | (bitplace << 24); // Never mind whether pVarOffset[0] > 0!!!
2504  o[place] = sgn; // Singnum for component ordering
2505  prev_ord = sgn;
2506  }
2507 }

◆ rO_LexVars()

static void rO_LexVars ( int &  place,
int &  bitplace,
int  start,
int  end,
int &  prev_ord,
long *  o,
int *  v,
int  bits,
int  opt_var 
)
static

Definition at line 2284 of file ring.cc.

2286 {
2287  // a block of variables v_start..v_end with lex order, ordsgn 1
2288  int k;
2289  int incr=1;
2290  if(prev_ord==-1) rO_Align(place,bitplace);
2291 
2292  if (start>end)
2293  {
2294  incr=-1;
2295  }
2296  for(k=start;;k+=incr)
2297  {
2298  bitplace-=bits;
2299  if (bitplace < 0) { bitplace=BITS_PER_LONG-bits; place++; }
2300  o[place]=1;
2301  v[k]= place | (bitplace << 24);
2302  if (k==end) break;
2303  }
2304  prev_ord=1;
2305  if (opt_var!= -1)
2306  {
2307  assume((opt_var == end+1) ||(opt_var == end-1));
2308  if((opt_var != end+1) &&(opt_var != end-1)) WarnS("hier-2");
2309  int save_bitplace=bitplace;
2310  bitplace-=bits;
2311  if (bitplace < 0)
2312  {
2313  bitplace=save_bitplace;
2314  return;
2315  }
2316  // there is enough space for the optional var
2317  v[opt_var]=place | (bitplace << 24);
2318  }
2319 }

◆ rO_LexVars_neg()

static void rO_LexVars_neg ( int &  place,
int &  bitplace,
int  start,
int  end,
int &  prev_ord,
long *  o,
int *  v,
int  bits,
int  opt_var 
)
static

Definition at line 2321 of file ring.cc.

2323 {
2324  // a block of variables v_start..v_end with lex order, ordsgn -1
2325  int k;
2326  int incr=1;
2327  if(prev_ord==1) rO_Align(place,bitplace);
2328 
2329  if (start>end)
2330  {
2331  incr=-1;
2332  }
2333  for(k=start;;k+=incr)
2334  {
2335  bitplace-=bits;
2336  if (bitplace < 0) { bitplace=BITS_PER_LONG-bits; place++; }
2337  o[place]=-1;
2338  v[k]=place | (bitplace << 24);
2339  if (k==end) break;
2340  }
2341  prev_ord=-1;
2342 // #if 0
2343  if (opt_var!= -1)
2344  {
2345  assume((opt_var == end+1) ||(opt_var == end-1));
2346  if((opt_var != end+1) &&(opt_var != end-1)) WarnS("hier-1");
2347  int save_bitplace=bitplace;
2348  bitplace-=bits;
2349  if (bitplace < 0)
2350  {
2351  bitplace=save_bitplace;
2352  return;
2353  }
2354  // there is enough space for the optional var
2355  v[opt_var]=place | (bitplace << 24);
2356  }
2357 // #endif
2358 }

◆ rO_Syz()

static void rO_Syz ( int &  place,
int &  bitplace,
int &  prev_ord,
int  syz_comp,
long *  o,
sro_ord ord_struct 
)
static

Definition at line 2375 of file ring.cc.

2377 {
2378  // ordering is derived from component number
2379  // let's reserve one Exponent_t for it
2380  if ((prev_ord== 1) || (bitplace!=BITS_PER_LONG))
2381  rO_Align(place,bitplace);
2382  ord_struct.ord_typ=ro_syz;
2383  ord_struct.data.syz.place=place;
2384  ord_struct.data.syz.limit=syz_comp;
2385  if (syz_comp>0)
2386  ord_struct.data.syz.syz_index = (int*) omAlloc0((syz_comp+1)*sizeof(int));
2387  else
2388  ord_struct.data.syz.syz_index = NULL;
2389  ord_struct.data.syz.curr_index = 1;
2390  o[place]= -1;
2391  prev_ord=-1;
2392  place++;
2393 }

◆ rO_Syzcomp()

static void rO_Syzcomp ( int &  place,
int &  bitplace,
int &  prev_ord,
long *  o,
sro_ord ord_struct 
)
static

Definition at line 2360 of file ring.cc.

2362 {
2363  // ordering is derived from component number
2364  rO_Align(place,bitplace);
2365  ord_struct.ord_typ=ro_syzcomp;
2366  ord_struct.data.syzcomp.place=place;
2367  ord_struct.data.syzcomp.Components=NULL;
2368  ord_struct.data.syzcomp.ShiftedComponents=NULL;
2369  o[place]=1;
2370  prev_ord=1;
2371  place++;
2372  rO_Align(place,bitplace);
2373 }

◆ rO_TDegree()

static void rO_TDegree ( int &  place,
int &  bitplace,
int  start,
int  end,
long *  o,
sro_ord ord_struct 
)
static

Definition at line 2150 of file ring.cc.

2152 {
2153  // degree (aligned) of variables v_start..v_end, ordsgn 1
2154  rO_Align(place,bitplace);
2155  ord_struct.ord_typ=ro_dp;
2156  ord_struct.data.dp.start=start;
2157  ord_struct.data.dp.end=end;
2158  ord_struct.data.dp.place=place;
2159  o[place]=1;
2160  place++;
2161  rO_Align(place,bitplace);
2162 }

◆ rO_TDegree_neg()

static void rO_TDegree_neg ( int &  place,
int &  bitplace,
int  start,
int  end,
long *  o,
sro_ord ord_struct 
)
static

Definition at line 2164 of file ring.cc.

2166 {
2167  // degree (aligned) of variables v_start..v_end, ordsgn -1
2168  rO_Align(place,bitplace);
2169  ord_struct.ord_typ=ro_dp;
2170  ord_struct.data.dp.start=start;
2171  ord_struct.data.dp.end=end;
2172  ord_struct.data.dp.place=place;
2173  o[place]=-1;
2174  place++;
2175  rO_Align(place,bitplace);
2176 }

◆ rO_WDegree()

static void rO_WDegree ( int &  place,
int &  bitplace,
int  start,
int  end,
long *  o,
sro_ord ord_struct,
int *  weights 
)
static

Definition at line 2178 of file ring.cc.

2180 {
2181  // weighted degree (aligned) of variables v_start..v_end, ordsgn 1
2182  while((start<end) && (weights[0]==0)) { start++; weights++; }
2183  while((start<end) && (weights[end-start]==0)) { end--; }
2184  int i;
2185  int pure_tdeg=1;
2186  for(i=start;i<=end;i++)
2187  {
2188  if(weights[i-start]!=1)
2189  {
2190  pure_tdeg=0;
2191  break;
2192  }
2193  }
2194  if (pure_tdeg)
2195  {
2196  rO_TDegree(place,bitplace,start,end,o,ord_struct);
2197  return;
2198  }
2199  rO_Align(place,bitplace);
2200  ord_struct.ord_typ=ro_wp;
2201  ord_struct.data.wp.start=start;
2202  ord_struct.data.wp.end=end;
2203  ord_struct.data.wp.place=place;
2204  ord_struct.data.wp.weights=weights;
2205  o[place]=1;
2206  place++;
2207  rO_Align(place,bitplace);
2208  for(i=start;i<=end;i++)
2209  {
2210  if(weights[i-start]<0)
2211  {
2212  ord_struct.ord_typ=ro_wp_neg;
2213  break;
2214  }
2215  }
2216 }

◆ rO_WDegree64()

static void rO_WDegree64 ( int &  place,
int &  bitplace,
int  start,
int  end,
long *  o,
sro_ord ord_struct,
int64 weights 
)
static

Definition at line 2240 of file ring.cc.

2242 {
2243  // weighted degree (aligned) of variables v_start..v_end, ordsgn 1,
2244  // reserved 2 places
2245  rO_Align(place,bitplace);
2246  ord_struct.ord_typ=ro_wp64;
2247  ord_struct.data.wp64.start=start;
2248  ord_struct.data.wp64.end=end;
2249  ord_struct.data.wp64.place=place;
2250  ord_struct.data.wp64.weights64=weights;
2251  o[place]=1;
2252  place++;
2253  o[place]=1;
2254  place++;
2255  rO_Align(place,bitplace);
2256 }

◆ rO_WDegree_neg()

static void rO_WDegree_neg ( int &  place,
int &  bitplace,
int  start,
int  end,
long *  o,
sro_ord ord_struct,
int *  weights 
)
static

Definition at line 2258 of file ring.cc.

2260 {
2261  // weighted degree (aligned) of variables v_start..v_end, ordsgn -1
2262  while((start<end) && (weights[0]==0)) { start++; weights++; }
2263  while((start<end) && (weights[end-start]==0)) { end--; }
2264  rO_Align(place,bitplace);
2265  ord_struct.ord_typ=ro_wp;
2266  ord_struct.data.wp.start=start;
2267  ord_struct.data.wp.end=end;
2268  ord_struct.data.wp.place=place;
2269  ord_struct.data.wp.weights=weights;
2270  o[place]=-1;
2271  place++;
2272  rO_Align(place,bitplace);
2273  int i;
2274  for(i=start;i<=end;i++)
2275  {
2276  if(weights[i-start]<0)
2277  {
2278  ord_struct.ord_typ=ro_wp_neg;
2279  break;
2280  }
2281  }
2282 }

◆ rO_WMDegree()

static void rO_WMDegree ( int &  place,
int &  bitplace,
int  start,
int  end,
long *  o,
sro_ord ord_struct,
int *  weights 
)
static

Definition at line 2218 of file ring.cc.

2220 {
2221  assume(weights != NULL);
2222 
2223  // weighted degree (aligned) of variables v_start..v_end, ordsgn 1
2224 // while((start<end) && (weights[0]==0)) { start++; weights++; }
2225 // while((start<end) && (weights[end-start]==0)) { end--; }
2226  rO_Align(place,bitplace);
2227  ord_struct.ord_typ=ro_am;
2228  ord_struct.data.am.start=start;
2229  ord_struct.data.am.end=end;
2230  ord_struct.data.am.place=place;
2231  ord_struct.data.am.weights=weights;
2232  ord_struct.data.am.weights_m = weights + (end-start+1);
2233  ord_struct.data.am.len_gen=weights[end-start+1];
2234  assume( ord_struct.data.am.weights_m[0] == ord_struct.data.am.len_gen );
2235  o[place]=1;
2236  place++;
2237  rO_Align(place,bitplace);
2238 }

◆ rOpposite()

ring rOpposite ( ring  src)

Definition at line 5243 of file ring.cc.

5247 {
5248  if (src == NULL) return(NULL);
5249 
5250  //rChangeCurrRing(src);
5251 #ifdef RDEBUG
5252  rTest(src);
5253 // rWrite(src);
5254 // rDebugPrint(src);
5255 #endif
5256 
5257  ring r = rCopy0(src,FALSE);
5258  if (src->qideal != NULL)
5259  {
5260  id_Delete(&(r->qideal), src);
5261  }
5262 
5263  // change vars v1..vN -> vN..v1
5264  int i;
5265  int i2 = (rVar(r)-1)/2;
5266  for(i=i2; i>=0; i--)
5267  {
5268  // index: 0..N-1
5269  //Print("ex var names: %d <-> %d\n",i,rOppVar(r,i));
5270  // exchange names
5271  char *p;
5272  p = r->names[rVar(r)-1-i];
5273  r->names[rVar(r)-1-i] = r->names[i];
5274  r->names[i] = p;
5275  }
5276 // i2=(rVar(r)+1)/2;
5277 // for(int i=i2; i>0; i--)
5278 // {
5279 // // index: 1..N
5280 // //Print("ex var places: %d <-> %d\n",i,rVar(r)+1-i);
5281 // // exchange VarOffset
5282 // int t;
5283 // t=r->VarOffset[i];
5284 // r->VarOffset[i]=r->VarOffset[rOppVar(r,i)];
5285 // r->VarOffset[rOppVar(r,i)]=t;
5286 // }
5287  // change names:
5288  // TODO: does this work the same way for Letterplace?
5289  for (i=rVar(r)-1; i>=0; i--)
5290  {
5291  char *p=r->names[i];
5292  if(isupper(*p)) *p = tolower(*p);
5293  else *p = toupper(*p);
5294  }
5295  // change ordering: listing
5296  // change ordering: compare
5297 // for(i=0; i<r->OrdSize; i++)
5298 // {
5299 // int t,tt;
5300 // switch(r->typ[i].ord_typ)
5301 // {
5302 // case ro_dp:
5303 // //
5304 // t=r->typ[i].data.dp.start;
5305 // r->typ[i].data.dp.start=rOppVar(r,r->typ[i].data.dp.end);
5306 // r->typ[i].data.dp.end=rOppVar(r,t);
5307 // break;
5308 // case ro_wp:
5309 // case ro_wp_neg:
5310 // {
5311 // t=r->typ[i].data.wp.start;
5312 // r->typ[i].data.wp.start=rOppVar(r,r->typ[i].data.wp.end);
5313 // r->typ[i].data.wp.end=rOppVar(r,t);
5314 // // invert r->typ[i].data.wp.weights
5315 // rOppWeight(r->typ[i].data.wp.weights,
5316 // r->typ[i].data.wp.end-r->typ[i].data.wp.start);
5317 // break;
5318 // }
5319 // //case ro_wp64:
5320 // case ro_syzcomp:
5321 // case ro_syz:
5322 // WerrorS("not implemented in rOpposite");
5323 // // should not happen
5324 // break;
5325 //
5326 // case ro_cp:
5327 // t=r->typ[i].data.cp.start;
5328 // r->typ[i].data.cp.start=rOppVar(r,r->typ[i].data.cp.end);
5329 // r->typ[i].data.cp.end=rOppVar(r,t);
5330 // break;
5331 // case ro_none:
5332 // default:
5333 // Werror("unknown type in rOpposite(%d)",r->typ[i].ord_typ);
5334 // break;
5335 // }
5336 // }
5337  // Change order/block structures (needed for rPrint, rAdd etc.)
5338 
5339  int j=0;
5340  int l=rBlocks(src);
5341  if ( ! rIsLPRing(src) )
5342  {
5343  // ie Plural or commutative
5344  for(i=0; src->order[i]!=0; i++)
5345  {
5346  switch (src->order[i])
5347  {
5348  case ringorder_c: /* c-> c */
5349  case ringorder_C: /* C-> C */
5350  case ringorder_no /*=0*/: /* end-of-block */
5351  r->order[j]=src->order[i];
5352  j++; break;
5353  case ringorder_lp: /* lp -> rp */
5354  r->order[j]=ringorder_rp;
5355  r->block0[j]=rOppVar(r, src->block1[i]);
5356  r->block1[j]=rOppVar(r, src->block0[i]);
5357  j++;break;
5358  case ringorder_rp: /* rp -> lp */
5359  r->order[j]=ringorder_lp;
5360  r->block0[j]=rOppVar(r, src->block1[i]);
5361  r->block1[j]=rOppVar(r, src->block0[i]);
5362  j++;break;
5363  case ringorder_dp: /* dp -> a(1..1),ls */
5364  {
5365  l=rRealloc1(r,l,j);
5366  r->order[j]=ringorder_a;
5367  r->block0[j]=rOppVar(r, src->block1[i]);
5368  r->block1[j]=rOppVar(r, src->block0[i]);
5369  r->wvhdl[j]=(int*)omAlloc((r->block1[j]-r->block0[j]+1)*sizeof(int));
5370  for(int k=r->block0[j]; k<=r->block1[j]; k++)
5371  r->wvhdl[j][k-r->block0[j]]=1;
5372  j++;
5373  r->order[j]=ringorder_ls;
5374  r->block0[j]=rOppVar(r, src->block1[i]);
5375  r->block1[j]=rOppVar(r, src->block0[i]);
5376  j++;
5377  break;
5378  }
5379  case ringorder_Dp: /* Dp -> a(1..1),rp */
5380  {
5381  l=rRealloc1(r,l,j);
5382  r->order[j]=ringorder_a;
5383  r->block0[j]=rOppVar(r, src->block1[i]);
5384  r->block1[j]=rOppVar(r, src->block0[i]);
5385  r->wvhdl[j]=(int*)omAlloc((r->block1[j]-r->block0[j]+1)*sizeof(int));
5386  for(int k=r->block0[j]; k<=r->block1[j]; k++)
5387  r->wvhdl[j][k-r->block0[j]]=1;
5388  j++;
5389  r->order[j]=ringorder_rp;
5390  r->block0[j]=rOppVar(r, src->block1[i]);
5391  r->block1[j]=rOppVar(r, src->block0[i]);
5392  j++;
5393  break;
5394  }
5395  case ringorder_wp: /* wp -> a(...),ls */
5396  {
5397  l=rRealloc1(r,l,j);
5398  r->order[j]=ringorder_a;
5399  r->block0[j]=rOppVar(r, src->block1[i]);
5400  r->block1[j]=rOppVar(r, src->block0[i]);
5401  r->wvhdl[j]=r->wvhdl[j+1]; r->wvhdl[j+1]=NULL;
5402  rOppWeight(r->wvhdl[j], r->block1[j]-r->block0[j]);
5403  j++;
5404  r->order[j]=ringorder_ls;
5405  r->block0[j]=rOppVar(r, src->block1[i]);
5406  r->block1[j]=rOppVar(r, src->block0[i]);
5407  j++;
5408  break;
5409  }
5410  case ringorder_Wp: /* Wp -> a(...),rp */
5411  {
5412  l=rRealloc1(r,l,j);
5413  r->order[j]=ringorder_a;
5414  r->block0[j]=rOppVar(r, src->block1[i]);
5415  r->block1[j]=rOppVar(r, src->block0[i]);
5416  r->wvhdl[j]=r->wvhdl[j+1]; r->wvhdl[j+1]=NULL;
5417  rOppWeight(r->wvhdl[j], r->block1[j]-r->block0[j]);
5418  j++;
5419  r->order[j]=ringorder_rp;
5420  r->block0[j]=rOppVar(r, src->block1[i]);
5421  r->block1[j]=rOppVar(r, src->block0[i]);
5422  j++;
5423  break;
5424  }
5425  case ringorder_M: /* M -> M */
5426  {
5427  r->order[j]=ringorder_M;
5428  r->block0[j]=rOppVar(r, src->block1[i]);
5429  r->block1[j]=rOppVar(r, src->block0[i]);
5430  int n=r->block1[j]-r->block0[j];
5431  /* M is a (n+1)x(n+1) matrix */
5432  for (int nn=0; nn<=n; nn++)
5433  {
5434  rOppWeight(&(r->wvhdl[j][nn*(n+1)]), n /*r->block1[j]-r->block0[j]*/);
5435  }
5436  j++;
5437  break;
5438  }
5439  case ringorder_a: /* a(...),ls -> wp/dp */
5440  {
5441  r->block0[j]=rOppVar(r, src->block1[i]);
5442  r->block1[j]=rOppVar(r, src->block0[i]);
5443  rOppWeight(r->wvhdl[j], r->block1[j]-r->block0[j]);
5444  if (src->order[i+1]==ringorder_ls)
5445  {
5446  r->order[j]=ringorder_wp;
5447  i++;
5448  //l=rReallocM1(r,l,j);
5449  }
5450  else
5451  {
5452  r->order[j]=ringorder_a;
5453  }
5454  j++;
5455  break;
5456  }
5457  // not yet done:
5458  case ringorder_ls:
5459  case ringorder_rs:
5460  case ringorder_ds:
5461  case ringorder_Ds:
5462  case ringorder_ws:
5463  case ringorder_Ws:
5464  case ringorder_am:
5465  case ringorder_a64:
5466  // should not occur:
5467  case ringorder_S:
5468  case ringorder_IS:
5469  case ringorder_s:
5470  case ringorder_aa:
5471  case ringorder_L:
5472  case ringorder_unspec:
5473  Werror("order %s not (yet) supported", rSimpleOrdStr(src->order[i]));
5474  break;
5475  }
5476  }
5477  } /* end if (!rIsLPRing(src)) */
5478  if (rIsLPRing(src))
5479  {
5480  // applies to Letterplace only
5481  // Letterplace conventions: dp<->Dp, lp<->rp
5482  // Wp(v) cannot be converted since wp(v) does not encode a monomial ordering
5483  // (a(w),<) is troublesome and thus postponed
5484  for(i=0; src->order[i]!=0; i++)
5485  {
5486  switch (src->order[i])
5487  {
5488  case ringorder_c: /* c-> c */
5489  case ringorder_C: /* C-> C */
5490  case ringorder_no /*=0*/: /* end-of-block */
5491  r->order[j]=src->order[i];
5492  j++; break;
5493  case ringorder_lp: /* lp -> rp */
5494  r->order[j]=ringorder_rp;
5495  r->block0[j]=rOppVar(r, src->block1[i]);
5496  r->block1[j]=rOppVar(r, src->block0[i]);
5497  j++;break;
5498  case ringorder_rp: /* rp -> lp */
5499  r->order[j]=ringorder_lp;
5500  r->block0[j]=rOppVar(r, src->block1[i]);
5501  r->block1[j]=rOppVar(r, src->block0[i]);
5502  j++;break;
5503  case ringorder_dp: /* dp -> Dp */
5504  {
5505  r->order[j]=ringorder_Dp;
5506  r->block0[j]=rOppVar(r, src->block1[i]);
5507  r->block1[j]=rOppVar(r, src->block0[i]);
5508  j++;break;
5509  }
5510  case ringorder_Dp: /* Dp -> dp*/
5511  {
5512  r->order[j]=ringorder_dp;
5513  r->block0[j]=rOppVar(r, src->block1[i]);
5514  r->block1[j]=rOppVar(r, src->block0[i]);
5515  j++;break;
5516  }
5517  // not clear how to do:
5518  case ringorder_wp:
5519  case ringorder_Wp:
5520  case ringorder_M:
5521  case ringorder_a:
5522  // not yet done:
5523  case ringorder_ls:
5524  case ringorder_rs:
5525  case ringorder_ds:
5526  case ringorder_Ds:
5527  case ringorder_ws:
5528  case ringorder_Ws:
5529  case ringorder_am:
5530  case ringorder_a64:
5531  // should not occur:
5532  case ringorder_S:
5533  case ringorder_IS:
5534  case ringorder_s:
5535  case ringorder_aa:
5536  case ringorder_L:
5537  case ringorder_unspec:
5538  Werror("order %s not (yet) supported", rSimpleOrdStr(src->order[i]));
5539  break;
5540  }
5541  }
5542  } /* end if (rIsLPRing(src)) */
5543  rComplete(r);
5544 
5545  //rChangeCurrRing(r);
5546 #ifdef RDEBUG
5547  rTest(r);
5548 // rWrite(r);
5549 // rDebugPrint(r);
5550 #endif
5551 
5552 #ifdef HAVE_PLURAL
5553  // now, we initialize a non-comm structure on r
5554  if (rIsPluralRing(src))
5555  {
5556 // assume( currRing == r);
5557 
5558  int *perm = (int *)omAlloc0((rVar(r)+1)*sizeof(int));
5559  int *par_perm = NULL;
5560  nMapFunc nMap = n_SetMap(src->cf,r->cf);
5561  int ni,nj;
5562  for(i=1; i<=r->N; i++)
5563  {
5564  perm[i] = rOppVar(r,i);
5565  }
5566 
5567  matrix C = mpNew(rVar(r),rVar(r));
5568  matrix D = mpNew(rVar(r),rVar(r));
5569 
5570  for (i=1; i< rVar(r); i++)
5571  {
5572  for (j=i+1; j<=rVar(r); j++)
5573  {
5574  ni = r->N +1 - i;
5575  nj = r->N +1 - j; /* i<j ==> nj < ni */
5576 
5577  assume(MATELEM(src->GetNC()->C,i,j) != NULL);
5578  MATELEM(C,nj,ni) = p_PermPoly(MATELEM(src->GetNC()->C,i,j),perm,src,r, nMap,par_perm,rPar(src));
5579 
5580  if(MATELEM(src->GetNC()->D,i,j) != NULL)
5581  MATELEM(D,nj,ni) = p_PermPoly(MATELEM(src->GetNC()->D,i,j),perm,src,r, nMap,par_perm,rPar(src));
5582  }
5583  }
5584 
5585  id_Test((ideal)C, r);
5586  id_Test((ideal)D, r);
5587 
5588  if (nc_CallPlural(C, D, NULL, NULL, r, false, false, true, r)) // no qring setup!
5589  WarnS("Error initializing non-commutative multiplication!");
5590 
5591 #ifdef RDEBUG
5592  rTest(r);
5593 // rWrite(r);
5594 // rDebugPrint(r);
5595 #endif
5596 
5597  assume( r->GetNC()->IsSkewConstant == src->GetNC()->IsSkewConstant);
5598 
5599  omFreeSize((ADDRESS)perm,(rVar(r)+1)*sizeof(int));
5600  }
5601 #endif /* HAVE_PLURAL */
5602 
5603  /* now oppose the qideal for qrings */
5604  if (src->qideal != NULL)
5605  {
5606 #ifdef HAVE_PLURAL
5607  r->qideal = idOppose(src, src->qideal, r); // into the currRing: r
5608 #else
5609  r->qideal = id_Copy(src->qideal, r); // ?
5610 #endif
5611 
5612 #ifdef HAVE_PLURAL
5613  if( rIsPluralRing(r) )
5614  {
5615  nc_SetupQuotient(r);
5616 #ifdef RDEBUG
5617  rTest(r);
5618 // rWrite(r);
5619 // rDebugPrint(r);
5620 #endif
5621  }
5622 #endif
5623  }
5624 #ifdef HAVE_PLURAL
5625  if( rIsPluralRing(r) )
5626  assume( ncRingType(r) == ncRingType(src) );
5627 #endif
5628  rTest(r);
5629 
5630  return r;
5631 }
number(* nMapFunc)(number a, const coeffs src, const coeffs dst)
maps "a", which lives in src, into dst
Definition: coeffs.h:73
ideal id_Copy(ideal h1, const ring r)
copy an ideal
ideal idOppose(ring Rop_src, ideal I, const ring Rop_dst)
opposes a module I from Rop to currRing(dst)
Definition: old.gring.cc:3381
poly p_PermPoly(poly p, const int *perm, const ring oldRing, const ring dst, nMapFunc nMap, const int *par_perm, int OldPar, BOOLEAN use_mult)
Definition: p_polys.cc:4163
const char * rSimpleOrdStr(int ord)
Definition: ring.cc:77
#define rOppVar(R, I)
Definition: ring.cc:5240
static void rOppWeight(int *w, int l)
Definition: ring.cc:5227
static int rRealloc1(ring r, int size, int pos)
Definition: ring.cc:5204
static int rPar(const ring r)
(r->cf->P)
Definition: ring.h:600
static BOOLEAN rIsLPRing(const ring r)
Definition: ring.h:411
@ ringorder_L
Definition: ring.h:89

◆ rOppWeight()

static void rOppWeight ( int *  w,
int  l 
)
static

Definition at line 5227 of file ring.cc.

5228 {
5229  /* works for commutative/Plural; need to be changed for Letterplace */
5230  /* Letterpace: each block of vars needs to be reverted on it own */
5231  int i2=(l+1)/2;
5232  for(int j=0; j<=i2; j++)
5233  {
5234  int t=w[j];
5235  w[j]=w[l-j];
5236  w[l-j]=t;
5237  }
5238 }

◆ rOptimizeLDeg()

static void rOptimizeLDeg ( ring  r)
static

Definition at line 3095 of file ring.cc.

3096 {
3097  if (r->pFDeg == p_Deg)
3098  {
3099  if (r->pLDeg == pLDeg1)
3100  r->pLDeg = pLDeg1_Deg;
3101  if (r->pLDeg == pLDeg1c)
3102  r->pLDeg = pLDeg1c_Deg;
3103  }
3104  else if (r->pFDeg == p_Totaldegree)
3105  {
3106  if (r->pLDeg == pLDeg1)
3107  r->pLDeg = pLDeg1_Totaldegree;
3108  if (r->pLDeg == pLDeg1c)
3109  r->pLDeg = pLDeg1c_Totaldegree;
3110  }
3111  else if (r->pFDeg == p_WFirstTotalDegree)
3112  {
3113  if (r->pLDeg == pLDeg1)
3114  r->pLDeg = pLDeg1_WFirstTotalDegree;
3115  if (r->pLDeg == pLDeg1c)
3116  r->pLDeg = pLDeg1c_WFirstTotalDegree;
3117  }
3118  r->pLDegOrig = r->pLDeg;
3119 }
long pLDeg1_Totaldegree(poly p, int *l, const ring r)
Definition: p_polys.cc:971
long pLDeg1_WFirstTotalDegree(poly p, int *l, const ring r)
Definition: p_polys.cc:1034
long pLDeg1c_WFirstTotalDegree(poly p, int *l, const ring r)
Definition: p_polys.cc:1064
long pLDeg1c_Deg(poly p, int *l, const ring r)
Definition: p_polys.cc:937
long pLDeg1(poly p, int *l, const ring r)
Definition: p_polys.cc:837
long pLDeg1_Deg(poly p, int *l, const ring r)
Definition: p_polys.cc:906
long pLDeg1c(poly p, int *l, const ring r)
Definition: p_polys.cc:873
long pLDeg1c_Totaldegree(poly p, int *l, const ring r)
Definition: p_polys.cc:1001

◆ rOrd_is_MixedDegree_Ordering()

BOOLEAN rOrd_is_MixedDegree_Ordering ( ring  r)

Definition at line 3373 of file ring.cc.

3374 {
3375  int i;
3376  poly p=p_One(r);
3377  p_SetExp(p,1,1,r);
3378  p_Setm(p,r);
3379  int vz=sign(p_FDeg(p,r));
3380  for(i=2;i<=rVar(r);i++)
3381  {
3382  p_SetExp(p,i-1,0,r);
3383  p_SetExp(p,i,1,r);
3384  p_Setm(p,r);
3385  if (sign(p_FDeg(p,r))!=vz)
3386  {
3387  p_Delete(&p,r);
3388  return TRUE;
3389  }
3390  }
3391  p_Delete(&p,r);
3392  return FALSE;
3393 }
static long p_FDeg(const poly p, const ring r)
Definition: p_polys.h:380
static void p_Delete(poly *p, const ring r)
Definition: p_polys.h:873
static int sign(int x)
Definition: ring.cc:3372

◆ rOrd_is_Totaldegree_Ordering()

BOOLEAN rOrd_is_Totaldegree_Ordering ( const ring  r)

Definition at line 1927 of file ring.cc.

1928 {
1929  // Hmm.... what about Syz orderings?
1930  return (rVar(r) > 1 &&
1931  ((rHasSimpleOrder(r) &&
1932  (rOrder_is_DegOrdering((rRingOrder_t)r->order[0]) ||
1933  rOrder_is_DegOrdering(( rRingOrder_t)r->order[1]))) ||
1934  (rHasSimpleOrderAA(r) &&
1935  (rOrder_is_DegOrdering((rRingOrder_t)r->order[1]) ||
1936  ((r->order[1]!=0) &&
1937  rOrder_is_DegOrdering((rRingOrder_t)r->order[2]))))));
1938 }
BOOLEAN rOrder_is_DegOrdering(const rRingOrder_t order)
Definition: ring.cc:1842
BOOLEAN rHasSimpleOrderAA(ring r)
Definition: ring.cc:1876

◆ rOrd_is_WeightedDegree_Ordering()

BOOLEAN rOrd_is_WeightedDegree_Ordering ( const ring  r)

Definition at line 1941 of file ring.cc.

1942 {
1943  // Hmm.... what about Syz orderings?
1944  return ((rVar(r) > 1) &&
1945  rHasSimpleOrder(r) &&
1946  (rOrder_is_WeightedOrdering((rRingOrder_t)r->order[0]) ||
1947  rOrder_is_WeightedOrdering(( rRingOrder_t)r->order[1])));
1948 }
BOOLEAN rOrder_is_WeightedOrdering(rRingOrder_t order)
Definition: ring.cc:1861

◆ rOrd_SetCompRequiresSetm()

BOOLEAN rOrd_SetCompRequiresSetm ( const ring  r)

return TRUE if p_SetComp requires p_Setm

Definition at line 1907 of file ring.cc.

1908 {
1909  if (r->typ != NULL)
1910  {
1911  int pos;
1912  for (pos=0;pos<r->OrdSize;pos++)
1913  {
1914  sro_ord* o=&(r->typ[pos]);
1915  if ( (o->ord_typ == ro_syzcomp)
1916  || (o->ord_typ == ro_syz)
1917  || (o->ord_typ == ro_is)
1918  || (o->ord_typ == ro_am)
1919  || (o->ord_typ == ro_isTemp))
1920  return TRUE;
1921  }
1922  }
1923  return FALSE;
1924 }

◆ rOrder_is_DegOrdering()

BOOLEAN rOrder_is_DegOrdering ( const rRingOrder_t  order)

Definition at line 1842 of file ring.cc.

1843 {
1844  switch(order)
1845  {
1846  case ringorder_dp:
1847  case ringorder_Dp:
1848  case ringorder_ds:
1849  case ringorder_Ds:
1850  case ringorder_Ws:
1851  case ringorder_Wp:
1852  case ringorder_ws:
1853  case ringorder_wp:
1854  return TRUE;
1855 
1856  default:
1857  return FALSE;
1858  }
1859 }

◆ rOrder_is_WeightedOrdering()

BOOLEAN rOrder_is_WeightedOrdering ( rRingOrder_t  order)

Definition at line 1861 of file ring.cc.

1862 {
1863  switch(order)
1864  {
1865  case ringorder_Ws:
1866  case ringorder_Wp:
1867  case ringorder_ws:
1868  case ringorder_wp:
1869  return TRUE;
1870 
1871  default:
1872  return FALSE;
1873  }
1874 }

◆ rOrderName()

rRingOrder_t rOrderName ( char *  ordername)

Definition at line 506 of file ring.cc.

507 {
508  int order=ringorder_unspec;
509  while (order!= 0)
510  {
511  if (strcmp(ordername,rSimpleOrdStr(order))==0)
512  break;
513  order--;
514  }
515  if (order==0) Werror("wrong ring order `%s`",ordername);
516  omFree((ADDRESS)ordername);
517  return (rRingOrder_t)order;
518 }

◆ rOrdStr()

char* rOrdStr ( ring  r)

Definition at line 520 of file ring.cc.

521 {
522  if ((r==NULL)||(r->order==NULL)) return omStrDup("");
523  int nblocks,l,i;
524 
525  for (nblocks=0; r->order[nblocks]; nblocks++);
526  nblocks--;
527 
528  StringSetS("");
529  for (l=0; ; l++)
530  {
531  StringAppendS((char *)rSimpleOrdStr(r->order[l]));
532  if (r->order[l] == ringorder_s)
533  {
534  StringAppend("(%d)",r->block0[l]);
535  }
536  else if (
537  (r->order[l] != ringorder_c)
538  && (r->order[l] != ringorder_C)
539  && (r->order[l] != ringorder_s)
540  && (r->order[l] != ringorder_S)
541  && (r->order[l] != ringorder_IS)
542  )
543  {
544  if (r->wvhdl[l]!=NULL)
545  {
546  #ifndef SING_NDEBUG
547  if((r->order[l] != ringorder_wp)
548  &&(r->order[l] != ringorder_Wp)
549  &&(r->order[l] != ringorder_ws)
550  &&(r->order[l] != ringorder_Ws)
551  &&(r->order[l] != ringorder_a)
552  &&(r->order[l] != ringorder_am)
553  &&(r->order[l] != ringorder_M))
554  {
555  Warn("should not have wvhdl entry at pos. %d",l);
556  StringAppend("(%d)",r->block1[l]-r->block0[l]+1);
557  }
558  else
559  #endif
560  {
561  StringAppendS("(");
562  for (int j= 0;
563  j<(r->block1[l]-r->block0[l]+1)*(r->block1[l]-r->block0[l]+1);
564  j+=i+1)
565  {
566  char c=',';
567  if(r->order[l]==ringorder_a64)
568  {
569  int64 * w=(int64 *)r->wvhdl[l];
570  for (i = 0; i<r->block1[l]-r->block0[l]; i++)
571  {
572  StringAppend("%lld," ,w[i]);
573  }
574  StringAppend("%lld)" ,w[i]);
575  break;
576  }
577  else
578  {
579  for (i = 0; i<r->block1[l]-r->block0[l]; i++)
580  {
581  StringAppend("%d," ,r->wvhdl[l][i+j]);
582  }
583  }
584  if (r->order[l]!=ringorder_M)
585  {
586  StringAppend("%d)" ,r->wvhdl[l][i+j]);
587  break;
588  }
589  if (j+i+1==(r->block1[l]-r->block0[l]+1)*(r->block1[l]-r->block0[l]+1))
590  c=')';
591  StringAppend("%d%c" ,r->wvhdl[l][i+j],c);
592  }
593  }
594  }
595  else
596  StringAppend("(%d)",r->block1[l]-r->block0[l]+1);
597  }
598  else if (r->order[l] == ringorder_IS)
599  {
600  assume( r->block0[l] == r->block1[l] );
601  const int s = r->block0[l];
602  assume( (-2 < s) && (s < 2) );
603 
604  StringAppend("(%d)", s);
605  }
606 
607  if (l==nblocks)
608  {
609  if (r->wanted_maxExp!=0)
610  {
611  long mm=r->wanted_maxExp;
612  if (mm>MAX_INT_VAL) mm=MAX_INT_VAL;
613  StringAppend(",L(%ld)",mm);
614  }
615  return StringEndS();
616  }
617  StringAppendS(",");
618  }
619 }
for(int i=0;i<=n;i++) degsf[i]
Definition: cfEzgcd.cc:72
#define StringAppend
Definition: emacs.cc:79
const int MAX_INT_VAL
Definition: mylimits.h:12
void StringSetS(const char *st)
Definition: reporter.cc:128
void StringAppendS(const char *st)
Definition: reporter.cc:107
char * StringEndS()
Definition: reporter.cc:151

◆ rParStr()

char* rParStr ( ring  r)

Definition at line 647 of file ring.cc.

648 {
649  if ((r==NULL)||(rParameter(r)==NULL)) return omStrDup("");
650 
651  char const * const * const params = rParameter(r);
652 
653  int i;
654  int l=2;
655 
656  for (i=0; i<rPar(r); i++)
657  {
658  l+=strlen(params[i])+1;
659  }
660  char *s=(char *)omAlloc((long)l);
661  s[0]='\0';
662  for (i=0; i<rPar(r)-1; i++)
663  {
664  strcat(s, params[i]);
665  strcat(s,",");
666  }
667  strcat(s, params[i]);
668  return s;
669 }
static char const ** rParameter(const ring r)
(r->cf->parameter)
Definition: ring.h:626

◆ rPlusVar()

ring rPlusVar ( const ring  r,
char *  v,
int  left 
)

K[x],"y" -> K[x,y] resp. K[y,x].

Definition at line 5779 of file ring.cc.

5780 {
5781  if (r->order[2]!=0)
5782  {
5783  WerrorS("only for rings with an ordering of one block");
5784  return NULL;
5785  }
5786  int p;
5787  if((r->order[0]==ringorder_C)
5788  ||(r->order[0]==ringorder_c))
5789  p=1;
5790  else
5791  p=0;
5792  if((r->order[p]!=ringorder_dp)
5793  && (r->order[p]!=ringorder_Dp)
5794  && (r->order[p]!=ringorder_lp)
5795  && (r->order[p]!=ringorder_rp)
5796  && (r->order[p]!=ringorder_ds)
5797  && (r->order[p]!=ringorder_Ds)
5798  && (r->order[p]!=ringorder_ls))
5799  {
5800  WerrorS("ordering must be dp,Dp,lp,rp,ds,Ds or ls");
5801  return NULL;
5802  }
5803  for(int i=r->N-1;i>=0;i--)
5804  {
5805  if (strcmp(r->names[i],v)==0)
5806  {
5807  Werror("duplicate variable name >>%s<<",v);
5808  return NULL;
5809  }
5810  }
5811  ring R=rCopy0(r);
5812  char **names;
5813  #ifdef HAVE_SHIFTBBA
5814  if (rIsLPRing(r))
5815  {
5816  R->isLPring=r->isLPring+1;
5817  R->N=((r->N)/r->isLPring)+r->N;
5818  names=(char**)omAlloc(R->N*sizeof(char_ptr));
5819  if (left)
5820  {
5821  for(int b=0;b<((r->N)/r->isLPring);b++)
5822  {
5823  names[b*R->isLPring]=omStrDup(v);
5824  for(int i=R->isLPring-1;i>0;i--)
5825  names[i+b*R->isLPring]=R->names[i-1+b*r->isLPring];
5826  }
5827  }
5828  else
5829  {
5830  for(int b=0;b<((r->N)/r->isLPring);b++)
5831  {
5832  names[(b+1)*R->isLPring-1]=omStrDup(v);
5833  for(int i=R->isLPring-2;i>=0;i--)
5834  names[i+b*R->isLPring]=R->names[i+b*r->isLPring];
5835  }
5836  }
5837  }
5838  else
5839  #endif
5840  {
5841  R->N++;
5842  names=(char**)omAlloc(R->N*sizeof(char_ptr));
5843  if (left)
5844  {
5845  names[0]=omStrDup(v);
5846  for(int i=R->N-1;i>0;i--) names[i]=R->names[i-1];
5847  }
5848  else
5849  {
5850  names[R->N-1]=omStrDup(v);
5851  for(int i=R->N-2;i>=0;i--) names[i]=R->names[i];
5852  }
5853  }
5854  omFreeSize(R->names,r->N*sizeof(char_ptr));
5855  R->names=names;
5856  R->block1[p]=R->N;
5857  rComplete(R);
5858  return R;
5859 }

◆ rRealloc1()

static int rRealloc1 ( ring  r,
int  size,
int  pos 
)
static

Definition at line 5204 of file ring.cc.

5205 {
5206  r->order=(rRingOrder_t*)omReallocSize(r->order, size*sizeof(rRingOrder_t), (size+1)*sizeof(rRingOrder_t));
5207  r->block0=(int*)omReallocSize(r->block0, size*sizeof(int), (size+1)*sizeof(int));
5208  r->block1=(int*)omReallocSize(r->block1, size*sizeof(int), (size+1)*sizeof(int));
5209  r->wvhdl=(int **)omReallocSize(r->wvhdl,size*sizeof(int *), (size+1)*sizeof(int *));
5210  for(int k=size; k>pos; k--) r->wvhdl[k]=r->wvhdl[k-1];
5211  r->order[size]=(rRingOrder_t)0;
5212  size++;
5213  return size;
5214 }
int size(const CanonicalForm &f, const Variable &v)
int size ( const CanonicalForm & f, const Variable & v )
Definition: cf_ops.cc:600

◆ rRightAdjustVarOffset()

static void rRightAdjustVarOffset ( ring  r)
static

right-adjust r->VarOffset

Definition at line 4027 of file ring.cc.

4028 {
4029  int* shifts = (int*) omAlloc(r->ExpL_Size*sizeof(int));
4030  int i;
4031  // initialize shifts
4032  for (i=0;i<r->ExpL_Size;i++)
4033  shifts[i] = BIT_SIZEOF_LONG;
4034 
4035  // find minimal bit shift in each long exp entry
4036  for (i=1;i<=r->N;i++)
4037  {
4038  if (shifts[r->VarOffset[i] & 0xffffff] > r->VarOffset[i] >> 24)
4039  shifts[r->VarOffset[i] & 0xffffff] = r->VarOffset[i] >> 24;
4040  }
4041  // reset r->VarOffset: set the minimal shift to 0
4042  for (i=1;i<=r->N;i++)
4043  {
4044  if (shifts[r->VarOffset[i] & 0xffffff] != 0)
4045  r->VarOffset[i]
4046  = (r->VarOffset[i] & 0xffffff) |
4047  (((r->VarOffset[i] >> 24) - shifts[r->VarOffset[i] & 0xffffff]) << 24);
4048  }
4049  omFree(shifts);
4050 }

◆ rRing_has_CompLastBlock()

BOOLEAN rRing_has_CompLastBlock ( const ring  r)

Definition at line 5147 of file ring.cc.

5148 {
5149  assume(r != NULL);
5150  int lb = rBlocks(r) - 2;
5151  return (r->order[lb] == ringorder_c || r->order[lb] == ringorder_C);
5152 }

◆ rRing_is_Homog()

BOOLEAN rRing_is_Homog ( const ring  r)

Definition at line 5126 of file ring.cc.

5127 {
5128  if (r == NULL) return FALSE;
5129  int i, j, nb = rBlocks(r);
5130  for (i=0; i<nb; i++)
5131  {
5132  if (r->wvhdl[i] != NULL)
5133  {
5134  int length = r->block1[i] - r->block0[i];
5135  int* wvhdl = r->wvhdl[i];
5136  if (r->order[i] == ringorder_M) length *= length;
5137 
5138  for (j=0; j< length; j++)
5139  {
5140  if (wvhdl[j] != 0 && wvhdl[j] != 1) return FALSE;
5141  }
5142  }
5143  }
5144  return TRUE;
5145 }

◆ rRing_ord_pure_dp()

BOOLEAN rRing_ord_pure_dp ( const ring  r)

Definition at line 5154 of file ring.cc.

5155 {
5156  if ((r->order[0]==ringorder_dp) &&(r->block0[0]==1) &&(r->block1[0]==r->N))
5157  return TRUE;
5158  if (((r->order[0]==ringorder_c)||(r->order[0]==ringorder_C))
5159  && ((r->order[1]==ringorder_dp) &&(r->block0[1]==1) &&(r->block1[1]==r->N)))
5160  return TRUE;
5161  return FALSE;
5162 }

◆ rRing_ord_pure_Dp()

BOOLEAN rRing_ord_pure_Dp ( const ring  r)

Definition at line 5164 of file ring.cc.

5165 {
5166  if ((r->order[0]==ringorder_Dp) &&(r->block0[0]==1) &&(r->block1[0]==r->N))
5167  return TRUE;
5168  if (((r->order[0]==ringorder_c)||(r->order[0]==ringorder_C))
5169  && ((r->order[1]==ringorder_Dp) &&(r->block0[1]==1) &&(r->block1[1]==r->N)))
5170  return TRUE;
5171  return FALSE;
5172 }

◆ rRing_ord_pure_lp()

BOOLEAN rRing_ord_pure_lp ( const ring  r)

Definition at line 5174 of file ring.cc.

5175 {
5176  if ((r->order[0]==ringorder_lp) &&(r->block0[0]==1) &&(r->block1[0]==r->N))
5177  return TRUE;
5178  if (((r->order[0]==ringorder_c)||(r->order[0]==ringorder_C))
5179  && ((r->order[1]==ringorder_lp) &&(r->block0[1]==1) &&(r->block1[1]==r->N)))
5180  return TRUE;
5181  return FALSE;
5182 }

◆ rSamePolyRep()

BOOLEAN rSamePolyRep ( ring  r1,
ring  r2 
)

returns TRUE, if r1 and r2 represents the monomials in the same way FALSE, otherwise this is an analogue to rEqual but not so strict

Definition at line 1713 of file ring.cc.

1714 {
1715  int i, j;
1716 
1717  if (r1 == r2) return TRUE;
1718 
1719  if (r1 == NULL || r2 == NULL) return FALSE;
1720 
1721  if ((r1->cf != r2->cf)
1722  || (rVar(r1) != rVar(r2))
1723  || (r1->OrdSgn != r2->OrdSgn))
1724  return FALSE;
1725 
1726  i=0;
1727  while (r1->order[i] != 0)
1728  {
1729  if (r2->order[i] == 0) return FALSE;
1730  if ((r1->order[i] != r2->order[i])
1731  || (r1->block0[i] != r2->block0[i])
1732  || (r1->block1[i] != r2->block1[i]))
1733  return FALSE;
1734  if (r1->wvhdl[i] != NULL)
1735  {
1736  if (r2->wvhdl[i] == NULL)
1737  return FALSE;
1738  for (j=0; j<r1->block1[i]-r1->block0[i]+1; j++)
1739  if (r2->wvhdl[i][j] != r1->wvhdl[i][j])
1740  return FALSE;
1741  }
1742  else if (r2->wvhdl[i] != NULL) return FALSE;
1743  i++;
1744  }
1745  if (r2->order[i] != 0) return FALSE;
1746 
1747  // we do not check variable names
1748  // we do not check minpoly/minideal
1749  // we do not check qideal
1750 
1751  return TRUE;
1752 }

◆ rSetDegStuff()

static void rSetDegStuff ( ring  r)
static

Definition at line 3122 of file ring.cc.

3123 {
3124  rRingOrder_t* order = r->order;
3125  int* block0 = r->block0;
3126  int* block1 = r->block1;
3127  int** wvhdl = r->wvhdl;
3128 
3129  if (order[0]==ringorder_S ||order[0]==ringorder_s || order[0]==ringorder_IS)
3130  {
3131  order++;
3132  block0++;
3133  block1++;
3134  wvhdl++;
3135  }
3136  r->LexOrder = FALSE;
3137  r->pFDeg = p_Totaldegree;
3138  r->pLDeg = (r->OrdSgn == 1 ? pLDegb : pLDeg0);
3139 
3140  /*======== ordering type is (am,_) ==================*/
3141  if (order[0]==ringorder_am)
3142  {
3143  for(int ii=block0[0];ii<=block1[0];ii++)
3144  if (wvhdl[0][ii-1]<0) { r->MixedOrder=2;break;}
3145  r->LexOrder=FALSE;
3146  for(int ii=block0[0];ii<=block1[0];ii++)
3147  if (wvhdl[0][ii-1]==0) { r->LexOrder=TRUE;break;}
3148  if ((block0[0]==1)&&(block1[0]==r->N))
3149  {
3150  r->pFDeg = p_Deg;
3151  r->pLDeg = pLDeg1c_Deg;
3152  }
3153  else
3154  {
3155  r->pFDeg = p_WTotaldegree;
3156  r->LexOrder=TRUE;
3157  r->pLDeg = pLDeg1c_WFirstTotalDegree;
3158  }
3159  r->firstwv = wvhdl[0];
3160  }
3161  /*======== ordering type is (_,c) =========================*/
3162  else if ((order[0]==ringorder_unspec) || (order[1] == 0)
3163  ||(
3164  ((order[1]==ringorder_c)||(order[1]==ringorder_C)
3165  ||(order[1]==ringorder_S)
3166  ||(order[1]==ringorder_s))
3167  && (order[0]!=ringorder_M)
3168  && (order[2]==0))
3169  )
3170  {
3171  if (r->OrdSgn == -1) r->pLDeg = pLDeg0c;
3172  if ((order[0] == ringorder_lp)
3173  || (order[0] == ringorder_ls)
3174  || (order[0] == ringorder_rp)
3175  || (order[0] == ringorder_rs))
3176  {
3177  r->LexOrder=TRUE;
3178  r->pLDeg = pLDeg1c;
3179  r->pFDeg = p_Totaldegree;
3180  }
3181  else if ((order[0] == ringorder_a)
3182  || (order[0] == ringorder_wp)
3183  || (order[0] == ringorder_Wp))
3184  {
3185  r->pFDeg = p_WFirstTotalDegree;
3186  }
3187  else if ((order[0] == ringorder_ws)
3188  || (order[0] == ringorder_Ws))
3189  {
3190  for(int ii=block0[0];ii<=block1[0];ii++)
3191  {
3192  if (wvhdl[0][ii-1]<0) { r->MixedOrder=2;break;}
3193  }
3194  if (r->MixedOrder==0)
3195  {
3196  if ((block0[0]==1)&&(block1[0]==r->N))
3197  r->pFDeg = p_WTotaldegree;
3198  else
3199  r->pFDeg = p_WFirstTotalDegree;
3200  }
3201  else
3202  r->pFDeg = p_Totaldegree;
3203  }
3204  r->firstBlockEnds=block1[0];
3205  r->firstwv = wvhdl[0];
3206  }
3207  /*======== ordering type is (c,_) =========================*/
3208  else if (((order[0]==ringorder_c)
3209  ||(order[0]==ringorder_C)
3210  ||(order[0]==ringorder_S)
3211  ||(order[0]==ringorder_s))
3212  && (order[1]!=ringorder_M)
3213  && (order[2]==0))
3214  {
3215  if ((order[1] == ringorder_lp)
3216  || (order[1] == ringorder_ls)
3217  || (order[1] == ringorder_rp)
3218  || order[1] == ringorder_rs)
3219  {
3220  r->LexOrder=TRUE;
3221  r->pLDeg = pLDeg1c;
3222  r->pFDeg = p_Totaldegree;
3223  }
3224  r->firstBlockEnds=block1[1];
3225  if (wvhdl!=NULL) r->firstwv = wvhdl[1];
3226  if ((order[1] == ringorder_a)
3227  || (order[1] == ringorder_wp)
3228  || (order[1] == ringorder_Wp))
3229  r->pFDeg = p_WFirstTotalDegree;
3230  else if ((order[1] == ringorder_ws)
3231  || (order[1] == ringorder_Ws))
3232  {
3233  for(int ii=block0[1];ii<=block1[1];ii++)
3234  if (wvhdl[1][ii-1]<0) { r->MixedOrder=2;break;}
3235  if (r->MixedOrder==FALSE)
3236  r->pFDeg = p_WFirstTotalDegree;
3237  else
3238  r->pFDeg = p_Totaldegree;
3239  }
3240  }
3241  /*------- more than one block ----------------------*/
3242  else
3243  {
3244  if ((r->VectorOut)||(order[0]==ringorder_C)||(order[0]==ringorder_S)||(order[0]==ringorder_s))
3245  {
3246  rSetFirstWv(r, 1, order, block1, wvhdl);
3247  }
3248  else
3249  rSetFirstWv(r, 0, order, block1, wvhdl);
3250 
3251  if ((order[0]!=ringorder_c)
3252  && (order[0]!=ringorder_C)
3253  && (order[0]!=ringorder_S)
3254  && (order[0]!=ringorder_s))
3255  {
3256  r->pLDeg = pLDeg1c;
3257  }
3258  else
3259  {
3260  r->pLDeg = pLDeg1;
3261  }
3262  r->pFDeg = p_WTotaldegree; // may be improved: p_Totaldegree for lp/dp/ls/.. blocks
3263  }
3264 
3267  {
3268  if(r->MixedOrder==FALSE)
3269  r->pFDeg = p_Deg;
3270  else
3271  r->pFDeg = p_Totaldegree;
3272  }
3273 
3274  if( rGetISPos(0, r) != -1 ) // Are there Schreyer induced blocks?
3275  {
3276 #ifndef SING_NDEBUG
3277  assume( r->pFDeg == p_Deg || r->pFDeg == p_WTotaldegree || r->pFDeg == p_Totaldegree);
3278 #endif
3279 
3280  r->pLDeg = pLDeg1; // ?
3281  }
3282 
3283  r->pFDegOrig = r->pFDeg;
3284  // NOTE: this leads to wrong ecart during std
3285  // in Old/sre.tst
3286  rOptimizeLDeg(r); // also sets r->pLDegOrig
3287 }
if(yy_init)
Definition: libparse.cc:1420
long pLDegb(poly p, int *l, const ring r)
Definition: p_polys.cc:807
long pLDeg0c(poly p, int *l, const ring r)
Definition: p_polys.cc:766
long pLDeg0(poly p, int *l, const ring r)
Definition: p_polys.cc:735
int rGetISPos(const int p, const ring r)
Finds p^th IS ordering, and returns its position in r->typ[] returns -1 if something went wrong!...
Definition: ring.cc:4941
BOOLEAN rOrd_is_Totaldegree_Ordering(const ring r)
Definition: ring.cc:1927
static void rSetFirstWv(ring r, int i, rRingOrder_t *order, int *block1, int **wvhdl)
Definition: ring.cc:3063

◆ rSetFirstWv()

static void rSetFirstWv ( ring  r,
int  i,
rRingOrder_t order,
int *  block1,
int **  wvhdl 
)
static

Definition at line 3063 of file ring.cc.

3064 {
3065  // cheat for ringorder_aa
3066  if (order[i] == ringorder_aa)
3067  i++;
3068  if(block1[i]!=r->N) r->LexOrder=TRUE;
3069  r->firstBlockEnds=block1[i];
3070  r->firstwv = wvhdl[i];
3071  if ((order[i]== ringorder_ws)
3072  || (order[i]==ringorder_Ws)
3073  || (order[i]== ringorder_wp)
3074  || (order[i]==ringorder_Wp)
3075  || (order[i]== ringorder_a)
3076  /*|| (order[i]==ringorder_A)*/)
3077  {
3078  int j;
3079  for(j=block1[i]-r->block0[i];j>=0;j--)
3080  {
3081  if (r->firstwv[j]==0) r->LexOrder=TRUE;
3082  }
3083  }
3084  else if (order[i]==ringorder_a64)
3085  {
3086  int j;
3087  int64 *w=rGetWeightVec(r);
3088  for(j=block1[i]-r->block0[i];j>=0;j--)
3089  {
3090  if (w[j]==0) r->LexOrder=TRUE;
3091  }
3092  }
3093 }
int64 * rGetWeightVec(const ring r)
Definition: ring.cc:5184

◆ rSetISReference()

BOOLEAN rSetISReference ( const ring  r,
const ideal  F,
const int  i,
const int  p 
)

Changes r by setting induced ordering parameters: limit and reference leading terms F belong to r, we will DO a copy! We will use it AS IS! returns true is everything was allright!

Definition at line 4973 of file ring.cc.

4974 {
4975  // Put the reference set F into the ring -ordering -recor
4976 
4977  if (r->typ==NULL)
4978  {
4979  dReportError("Error: WRONG USE of rSetISReference: wrong ring! (typ == NULL)");
4980  return FALSE;
4981  }
4982 
4983 
4984  int pos = rGetISPos(p, r);
4985 
4986  if( pos == -1 )
4987  {
4988  dReportError("Error: WRONG USE of rSetISReference: specified ordering block was not found!!!" );
4989  return FALSE;
4990  }
4991 
4992 #if MYTEST
4993  if( i != r->typ[pos].data.is.limit )
4994  Print("Changing record on pos: %d\nOld limit: %d --->> New Limit: %d\n", pos, r->typ[pos].data.is.limit, i);
4995 #endif
4996 
4997  const ideal FF = idrHeadR(F, r, r); // id_Copy(F, r); // ???
4998 
4999 
5000  if( r->typ[pos].data.is.F != NULL)
5001  {
5002 #if MYTEST
5003  PrintS("Deleting old reference set F... \n"); // idShow(r->typ[pos].data.is.F, r); PrintLn();
5004 #endif
5005  id_Delete(&r->typ[pos].data.is.F, r);
5006  r->typ[pos].data.is.F = NULL;
5007  }
5008 
5009  assume(r->typ[pos].data.is.F == NULL);
5010 
5011  r->typ[pos].data.is.F = FF; // F is owened by ring now! TODO: delete at the end!
5012 
5013  r->typ[pos].data.is.limit = i; // First induced component
5014 
5015 #if MYTEST
5016  PrintS("New reference set FF : \n"); idShow(FF, r, r, 1); PrintLn();
5017 #endif
5018 
5019  return TRUE;
5020 }
void idShow(const ideal id, const ring lmRing, const ring tailRing, const int debugPrint)
Definition: simpleideals.cc:57

◆ rSetNegWeight()

static void rSetNegWeight ( ring  r)
static

Definition at line 3292 of file ring.cc.

3293 {
3294  int i,l;
3295  if (r->typ!=NULL)
3296  {
3297  l=0;
3298  for(i=0;i<r->OrdSize;i++)
3299  {
3300  if((r->typ[i].ord_typ==ro_wp_neg)
3301  ||(r->typ[i].ord_typ==ro_am))
3302  l++;
3303  }
3304  if (l>0)
3305  {
3306  r->NegWeightL_Size=l;
3307  r->NegWeightL_Offset=(int *) omAlloc(l*sizeof(int));
3308  l=0;
3309  for(i=0;i<r->OrdSize;i++)
3310  {
3311  if(r->typ[i].ord_typ==ro_wp_neg)
3312  {
3313  r->NegWeightL_Offset[l]=r->typ[i].data.wp.place;
3314  l++;
3315  }
3316  else if(r->typ[i].ord_typ==ro_am)
3317  {
3318  r->NegWeightL_Offset[l]=r->typ[i].data.am.place;
3319  l++;
3320  }
3321  }
3322  return;
3323  }
3324  }
3325  r->NegWeightL_Size = 0;
3326  r->NegWeightL_Offset = NULL;
3327 }

◆ rSetOption()

static void rSetOption ( ring  r)
static

Definition at line 3329 of file ring.cc.

3330 {
3331  // set redthrough
3332  if (!TEST_OPT_OLDSTD && r->OrdSgn == 1 && ! r->LexOrder)
3333  r->options |= Sy_bit(OPT_REDTHROUGH);
3334  else
3335  r->options &= ~Sy_bit(OPT_REDTHROUGH);
3336 
3337  // set intStrategy
3338  if ( (r->cf->extRing!=NULL)
3339  || rField_is_Q(r)
3340  || rField_is_Ring(r)
3341  )
3342  r->options |= Sy_bit(OPT_INTSTRATEGY);
3343  else
3344  r->options &= ~Sy_bit(OPT_INTSTRATEGY);
3345 
3346  // set redTail
3347  if (r->LexOrder || r->OrdSgn == -1 || (r->cf->extRing!=NULL))
3348  r->options &= ~Sy_bit(OPT_REDTAIL);
3349  else
3350  r->options |= Sy_bit(OPT_REDTAIL);
3351 }
#define OPT_INTSTRATEGY
Definition: options.h:92
#define OPT_REDTAIL
Definition: options.h:91
#define TEST_OPT_OLDSTD
Definition: options.h:123
#define OPT_REDTHROUGH
Definition: options.h:82
#define Sy_bit(x)
Definition: options.h:31
static BOOLEAN rField_is_Q(const ring r)
Definition: ring.h:507
#define rField_is_Ring(R)
Definition: ring.h:486

◆ rSetOutParams()

static void rSetOutParams ( ring  r)
static

Definition at line 3025 of file ring.cc.

3026 {
3027  r->VectorOut = (r->order[0] == ringorder_c);
3028  if (rIsNCRing(r))
3029  r->CanShortOut=FALSE;
3030  else
3031  {
3032  r->CanShortOut = TRUE;
3033  int i;
3034  if (rParameter(r)!=NULL)
3035  {
3036  for (i=0;i<rPar(r);i++)
3037  {
3038  if(strlen(rParameter(r)[i])>1)
3039  {
3040  r->CanShortOut=FALSE;
3041  break;
3042  }
3043  }
3044  }
3045  if (r->CanShortOut)
3046  {
3047  int N = r->N;
3048  for (i=(N-1);i>=0;i--)
3049  {
3050  if(r->names[i] != NULL && strlen(r->names[i])>1)
3051  {
3052  r->CanShortOut=FALSE;
3053  break;
3054  }
3055  }
3056  }
3057  }
3058  r->ShortOut = r->CanShortOut;
3059 
3060  assume( !( !r->CanShortOut && r->ShortOut ) );
3061 }
static BOOLEAN rIsNCRing(const ring r)
Definition: ring.h:421

◆ rSetSyzComp()

void rSetSyzComp ( int  k,
const ring  r 
)

Definition at line 5027 of file ring.cc.

5028 {
5029  if(k < 0)
5030  {
5031  dReportError("rSetSyzComp with negative limit!");
5032  return;
5033  }
5034 
5035  assume( k >= 0 );
5036  if (TEST_OPT_PROT) Print("{%d}", k);
5037  if ((r->typ!=NULL) && (r->typ[0].ord_typ==ro_syz))
5038  {
5039  r->block0[0]=r->block1[0] = k;
5040  if( k == r->typ[0].data.syz.limit )
5041  return; // nothing to do
5042 
5043  int i;
5044  if (r->typ[0].data.syz.limit == 0)
5045  {
5046  r->typ[0].data.syz.syz_index = (int*) omAlloc0((k+1)*sizeof(int));
5047  r->typ[0].data.syz.syz_index[0] = 0;
5048  r->typ[0].data.syz.curr_index = 1;
5049  }
5050  else
5051  {
5052  r->typ[0].data.syz.syz_index = (int*)
5053  omReallocSize(r->typ[0].data.syz.syz_index,
5054  (r->typ[0].data.syz.limit+1)*sizeof(int),
5055  (k+1)*sizeof(int));
5056  }
5057  for (i=r->typ[0].data.syz.limit + 1; i<= k; i++)
5058  {
5059  r->typ[0].data.syz.syz_index[i] =
5060  r->typ[0].data.syz.curr_index;
5061  }
5062  if(k < r->typ[0].data.syz.limit) // ?
5063  {
5064 #ifndef SING_NDEBUG
5065  Warn("rSetSyzComp called with smaller limit (%d) as before (%d)", k, r->typ[0].data.syz.limit);
5066 #endif
5067  r->typ[0].data.syz.curr_index = 1 + r->typ[0].data.syz.syz_index[k];
5068  }
5069 
5070 
5071  r->typ[0].data.syz.limit = k;
5072  r->typ[0].data.syz.curr_index++;
5073  }
5074  else if(
5075  (r->typ!=NULL) &&
5076  (r->typ[0].ord_typ==ro_isTemp)
5077  )
5078  {
5079 // (r->typ[currRing->typ[0].data.isTemp.suffixpos].data.is.limit == k)
5080 #ifndef SING_NDEBUG
5081  Warn("rSetSyzComp(%d) in an IS ring! Be careful!", k);
5082 #endif
5083  }
5084  else if (r->order[0]==ringorder_s)
5085  {
5086  r->block0[0] = r->block1[0] = k;
5087  }
5088  else if (r->order[0]!=ringorder_c)
5089  {
5090  dReportError("syzcomp in incompatible ring");
5091  }
5092 #ifdef PDEBUG
5093  EXTERN_VAR int pDBsyzComp;
5094  pDBsyzComp=k;
5095 #endif
5096 }
#define EXTERN_VAR
Definition: globaldefs.h:6
#define TEST_OPT_PROT
Definition: options.h:103
VAR int pDBsyzComp
Definition: ring.cc:5023

◆ rSetVarL()

static void rSetVarL ( ring  r)
static

set r->VarL_Size, r->VarL_Offset, r->VarL_LowIndex

Definition at line 3972 of file ring.cc.

3973 {
3974  int min = MAX_INT_VAL, min_j = -1;
3975  int* VarL_Number = (int*) omAlloc0(r->ExpL_Size*sizeof(int));
3976 
3977  int i,j;
3978 
3979  // count how often a var long is occupied by an exponent
3980  for (i=1; i<=r->N; i++)
3981  {
3982  VarL_Number[r->VarOffset[i] & 0xffffff]++;
3983  }
3984 
3985  // determine how many and min
3986  for (i=0, j=0; i<r->ExpL_Size; i++)
3987  {
3988  if (VarL_Number[i] != 0)
3989  {
3990  if (min > VarL_Number[i])
3991  {
3992  min = VarL_Number[i];
3993  min_j = j;
3994  }
3995  j++;
3996  }
3997  }
3998 
3999  r->VarL_Size = j; // number of long with exp. entries in
4000  // in p->exp
4001  r->VarL_Offset = (int*) omAlloc(r->VarL_Size*sizeof(int));
4002  r->VarL_LowIndex = 0;
4003 
4004  // set VarL_Offset
4005  for (i=0, j=0; i<r->ExpL_Size; i++)
4006  {
4007  if (VarL_Number[i] != 0)
4008  {
4009  r->VarL_Offset[j] = i;
4010  if (j > 0 && r->VarL_Offset[j-1] != r->VarL_Offset[j] - 1)
4011  r->VarL_LowIndex = -1;
4012  j++;
4013  }
4014  }
4015  if (r->VarL_LowIndex >= 0)
4016  r->VarL_LowIndex = r->VarL_Offset[0];
4017 
4018  if (min_j != 0)
4019  {
4020  j = r->VarL_Offset[min_j];
4021  r->VarL_Offset[min_j] = r->VarL_Offset[0];
4022  r->VarL_Offset[0] = j;
4023  }
4024  omFree(VarL_Number);
4025 }
static int min(int a, int b)
Definition: fast_mult.cc:268

◆ rSetWeightVec()

void rSetWeightVec ( ring  r,
int64 wv 
)

Definition at line 5194 of file ring.cc.

5195 {
5196  assume(r!=NULL);
5197  assume(r->OrdSize>0);
5198  assume(r->typ[0].ord_typ==ro_wp64);
5199  memcpy(r->typ[0].data.wp64.weights64,wv,r->N*sizeof(int64));
5200 }

◆ rSimpleOrdStr()

const char* rSimpleOrdStr ( int  ord)

Definition at line 77 of file ring.cc.

78 {
79  return ringorder_name[ord];
80 }
static const char *const ringorder_name[]
Definition: ring.cc:47

◆ rString()

char* rString ( ring  r)

Definition at line 671 of file ring.cc.

672 {
673  if ((r!=NULL)&&(r->cf!=NULL))
674  {
675  char *ch=rCharStr(r);
676  char *var=rVarStr(r);
677  char *ord=rOrdStr(r);
678  char *res=(char *)omAlloc(strlen(ch)+strlen(var)+strlen(ord)+9);
679  sprintf(res,"(%s),(%s),(%s)",ch,var,ord);
680  omFree((ADDRESS)ch);
681  omFree((ADDRESS)var);
682  omFree((ADDRESS)ord);
683  return res;
684  }
685  else
686  return omStrDup("undefined");
687 }
char * rVarStr(ring r)
Definition: ring.cc:621
char * rOrdStr(ring r)
Definition: ring.cc:520
char * rCharStr(const ring r)
TODO: make it a virtual method of coeffs, together with: Decompose & Compose, rParameter & rPar.
Definition: ring.cc:645

◆ rSum()

int rSum ( ring  r1,
ring  r2,
ring &  sum 
)

Definition at line 1344 of file ring.cc.

1345 {
1346  if ((r1==NULL)||(r2==NULL)
1347  ||(r1->cf==NULL)||(r2->cf==NULL))
1348  return -1;
1349  if (r1==r2)
1350  {
1351  sum=r1;
1352  rIncRefCnt(r1);
1353  return 0;
1354  }
1355  return rSumInternal(r1,r2,sum,TRUE,FALSE);
1356 }
int rSumInternal(ring r1, ring r2, ring &sum, BOOLEAN vartest, BOOLEAN dp_dp)
returns -1 for not compatible, 1 for compatible (and sum) dp_dp:0: block ordering,...
Definition: ring.cc:747
static ring rIncRefCnt(ring r)
Definition: ring.h:843

◆ rSumInternal()

int rSumInternal ( ring  r1,
ring  r2,
ring &  sum,
BOOLEAN  vartest,
BOOLEAN  dp_dp 
)

returns -1 for not compatible, 1 for compatible (and sum) dp_dp:0: block ordering, 1: dp,dp, 2: aa(...),dp vartest: check for name conflicts

Definition at line 747 of file ring.cc.

748 {
749 
750  ip_sring tmpR;
751  memset(&tmpR,0,sizeof(tmpR));
752  /* check coeff. field =====================================================*/
753 
754  if (r1->cf==r2->cf)
755  {
756  tmpR.cf=nCopyCoeff(r1->cf);
757  }
758  else /* different type */
759  {
760  if (getCoeffType(r1->cf)==n_Zp)
761  {
762  if (getCoeffType(r2->cf)==n_Q)
763  {
764  tmpR.cf=nCopyCoeff(r1->cf);
765  }
766  else if (nCoeff_is_Extension(r2->cf) && rChar(r2) == rChar(r1))
767  {
768  /*AlgExtInfo extParam;
769  extParam.r = r2->cf->extRing;
770  extParam.i = r2->cf->extRing->qideal;*/
771  tmpR.cf=nCopyCoeff(r2->cf);
772  }
773  else
774  {
775  WerrorS("Z/p+...");
776  return -1;
777  }
778  }
779  else if ((getCoeffType(r1->cf)==n_Zn)||(getCoeffType(r1->cf)==n_Znm))
780  {
781  if (getCoeffType(r2->cf)==n_Q)
782  {
783  tmpR.cf=nCopyCoeff(r1->cf);
784  }
785  else if (nCoeff_is_Extension(r2->cf)
786  && (mpz_cmp(r1->cf->modNumber,r2->cf->extRing->cf->modNumber)==0))
787  { // covers transext.cc and algext.cc
788  tmpR.cf=nCopyCoeff(r2->cf);
789  }
790  else
791  {
792  WerrorS("Z/n+...");
793  return -1;
794  }
795  }
796  else if (getCoeffType(r1->cf)==n_R)
797  {
798  WerrorS("R+..");
799  return -1;
800  }
801  else if (getCoeffType(r1->cf)==n_Q)
802  {
803  if (getCoeffType(r2->cf)==n_Zp)
804  {
805  tmpR.cf=nCopyCoeff(r2->cf);
806  }
807  else if (nCoeff_is_Extension(r2->cf))
808  {
809  tmpR.cf=nCopyCoeff(r2->cf);
810  }
811  else
812  {
813  WerrorS("Q+...");
814  return -1;
815  }
816  }
817  else if (nCoeff_is_Extension(r1->cf))
818  {
819  if (r1->cf->extRing->cf==r2->cf)
820  {
821  tmpR.cf=nCopyCoeff(r1->cf);
822  }
823  else if (getCoeffType(r1->cf->extRing->cf)==n_Zp && getCoeffType(r2->cf)==n_Q) //r2->cf == n_Zp should have been handled above
824  {
825  tmpR.cf=nCopyCoeff(r1->cf);
826  }
827  else
828  {
829  WerrorS ("coeff sum of two extension fields not implemented");
830  return -1;
831  }
832  }
833  else
834  {
835  WerrorS("coeff sum not yet implemented");
836  return -1;
837  }
838  }
839  /* variable names ========================================================*/
840  int i,j,k;
841  int l=r1->N+r2->N;
842  char **names=(char **)omAlloc0(l*sizeof(char *));
843  k=0;
844 
845  // collect all varnames from r1, except those which are parameters
846  // of r2, or those which are the empty string
847  for (i=0;i<r1->N;i++)
848  {
849  BOOLEAN b=TRUE;
850 
851  if (*(r1->names[i]) == '\0')
852  b = FALSE;
853  else if ((rParameter(r2)!=NULL) && (strlen(r1->names[i])==1))
854  {
855  if (vartest)
856  {
857  for(j=0;j<rPar(r2);j++)
858  {
859  if (strcmp(r1->names[i],rParameter(r2)[j])==0)
860  {
861  b=FALSE;
862  break;
863  }
864  }
865  }
866  }
867 
868  if (b)
869  {
870  //Print("name : %d: %s\n",k,r1->names[i]);
871  names[k]=omStrDup(r1->names[i]);
872  k++;
873  }
874  //else
875  // Print("no name (par1) %s\n",r1->names[i]);
876  }
877  // Add variables from r2, except those which are parameters of r1
878  // those which are empty strings, and those which equal a var of r1
879  for(i=0;i<r2->N;i++)
880  {
881  BOOLEAN b=TRUE;
882 
883  if (*(r2->names[i]) == '\0')
884  b = FALSE;
885  else if ((rParameter(r1)!=NULL) && (strlen(r2->names[i])==1))
886  {
887  if (vartest)
888  {
889  for(j=0;j<rPar(r1);j++)
890  {
891  if (strcmp(r2->names[i],rParameter(r1)[j])==0)
892  {
893  b=FALSE;
894  break;
895  }
896  }
897  }
898  }
899 
900  if (b)
901  {
902  if (vartest)
903  {
904  for(j=0;j<r1->N;j++)
905  {
906  if (strcmp(r1->names[j],r2->names[i])==0)
907  {
908  b=FALSE;
909  break;
910  }
911  }
912  }
913  if (b)
914  {
915  //Print("name : %d : %s\n",k,r2->names[i]);
916  names[k]=omStrDup(r2->names[i]);
917  k++;
918  }
919  //else
920  // Print("no name (var): %s\n",r2->names[i]);
921  }
922  //else
923  // Print("no name (par): %s\n",r2->names[i]);
924  }
925  // check whether we found any vars at all
926  if (k == 0)
927  {
928  names[k]=omStrDup("");
929  k=1;
930  }
931  tmpR.N=k;
932  tmpR.names=names;
933  /* ordering *======================================================== */
934  tmpR.OrdSgn=0;
935  if ((dp_dp==2)
936  && (r1->OrdSgn==1)
937  && (r2->OrdSgn==1)
938 #ifdef HAVE_PLURAL
939  && !rIsPluralRing(r1) && !rIsPluralRing(r2)
940 #endif
941  )
942  {
943  tmpR.order=(rRingOrder_t*)omAlloc0(4*sizeof(rRingOrder_t));
944  tmpR.block0=(int*)omAlloc0(4*sizeof(int));
945  tmpR.block1=(int*)omAlloc0(4*sizeof(int));
946  tmpR.wvhdl=(int**) omAlloc0(4*sizeof(int**));
947  // ----
948  tmpR.block0[0] = 1;
949  tmpR.block1[0] = rVar(r1)+rVar(r2);
950  tmpR.order[0] = ringorder_aa;
951  tmpR.wvhdl[0]=(int*)omAlloc0((rVar(r1)+rVar(r2) + 1)*sizeof(int));
952  for(int i=0;i<rVar(r1);i++) tmpR.wvhdl[0][i]=1;
953  // ----
954  tmpR.block0[1] = 1;
955  tmpR.block1[1] = rVar(r1)+rVar(r2);
956  tmpR.order[1] = ringorder_dp;
957  // ----
958  tmpR.order[2] = ringorder_C;
959  }
960  else if (dp_dp
961 #ifdef HAVE_PLURAL
962  && !rIsPluralRing(r1) && !rIsPluralRing(r2)
963 #endif
964  )
965  {
966  tmpR.order=(rRingOrder_t*)omAlloc(4*sizeof(rRingOrder_t));
967  tmpR.block0=(int*)omAlloc0(4*sizeof(int));
968  tmpR.block1=(int*)omAlloc0(4*sizeof(int));
969  tmpR.wvhdl=(int**)omAlloc0(4*sizeof(int *));
970  tmpR.order[0]=ringorder_dp;
971  tmpR.block0[0]=1;
972  tmpR.block1[0]=rVar(r1);
973  if (r2->OrdSgn==1)
974  {
975  if ((r2->block0[0]==1)
976  && (r2->block1[0]==rVar(r2))
977  && ((r2->order[0]==ringorder_wp)
978  || (r2->order[0]==ringorder_Wp)
979  || (r2->order[0]==ringorder_Dp))
980  )
981  {
982  tmpR.order[1]=r2->order[0];
983  if (r2->wvhdl[0]!=NULL)
984  tmpR.wvhdl[1]=(int *)omMemDup(r2->wvhdl[0]);
985  }
986  else
987  tmpR.order[1]=ringorder_dp;
988  }
989  else
990  {
991  tmpR.order[1]=ringorder_ds;
992  tmpR.OrdSgn=-1;
993  }
994  tmpR.block0[1]=rVar(r1)+1;
995  tmpR.block1[1]=rVar(r1)+rVar(r2);
996  tmpR.order[2]=ringorder_C;
997  tmpR.order[3]=(rRingOrder_t)0;
998  }
999  else
1000  {
1001  if ((r1->order[0]==ringorder_unspec)
1002  && (r2->order[0]==ringorder_unspec))
1003  {
1004  tmpR.order=(rRingOrder_t*)omAlloc(3*sizeof(rRingOrder_t));
1005  tmpR.block0=(int*)omAlloc(3*sizeof(int));
1006  tmpR.block1=(int*)omAlloc(3*sizeof(int));
1007  tmpR.wvhdl=(int**)omAlloc0(3*sizeof(int *));
1008  tmpR.order[0]=ringorder_unspec;
1009  tmpR.order[1]=ringorder_C;
1010  tmpR.order[2]=(rRingOrder_t)0;
1011  tmpR.block0[0]=1;
1012  tmpR.block1[0]=tmpR.N;
1013  }
1014  else if (l==k) /* r3=r1+r2 */
1015  {
1016  int b;
1017  ring rb;
1018  if (r1->order[0]==ringorder_unspec)
1019  {
1020  /* extend order of r2 to r3 */
1021  b=rBlocks(r2);
1022  rb=r2;
1023  tmpR.OrdSgn=r2->OrdSgn;
1024  }
1025  else if (r2->order[0]==ringorder_unspec)
1026  {
1027  /* extend order of r1 to r3 */
1028  b=rBlocks(r1);
1029  rb=r1;
1030  tmpR.OrdSgn=r1->OrdSgn;
1031  }
1032  else
1033  {
1034  b=rBlocks(r1)+rBlocks(r2)-2; /* for only one order C, only one 0 */
1035  rb=NULL;
1036  }
1037  tmpR.order=(rRingOrder_t*)omAlloc0(b*sizeof(rRingOrder_t));
1038  tmpR.block0=(int*)omAlloc0(b*sizeof(int));
1039  tmpR.block1=(int*)omAlloc0(b*sizeof(int));
1040  tmpR.wvhdl=(int**)omAlloc0(b*sizeof(int *));
1041  /* weights not implemented yet ...*/
1042  if (rb!=NULL)
1043  {
1044  for (i=0;i<b;i++)
1045  {
1046  tmpR.order[i]=rb->order[i];
1047  tmpR.block0[i]=rb->block0[i];
1048  tmpR.block1[i]=rb->block1[i];
1049  if (rb->wvhdl[i]!=NULL)
1050  WarnS("rSum: weights not implemented");
1051  }
1052  tmpR.block0[0]=1;
1053  }
1054  else /* ring sum for complete rings */
1055  {
1056  for (i=0;r1->order[i]!=0;i++)
1057  {
1058  tmpR.order[i]=r1->order[i];
1059  tmpR.block0[i]=r1->block0[i];
1060  tmpR.block1[i]=r1->block1[i];
1061  if (r1->wvhdl[i]!=NULL)
1062  tmpR.wvhdl[i] = (int*) omMemDup(r1->wvhdl[i]);
1063  }
1064  j=i;
1065  i--;
1066  if ((r1->order[i]==ringorder_c)
1067  ||(r1->order[i]==ringorder_C))
1068  {
1069  j--;
1070  tmpR.order[b-2]=r1->order[i];
1071  }
1072  for (i=0;r2->order[i]!=0;i++)
1073  {
1074  if ((r2->order[i]!=ringorder_c)
1075  &&(r2->order[i]!=ringorder_C))
1076  {
1077  tmpR.order[j]=r2->order[i];
1078  tmpR.block0[j]=r2->block0[i]+rVar(r1);
1079  tmpR.block1[j]=r2->block1[i]+rVar(r1);
1080  if (r2->wvhdl[i]!=NULL)
1081  {
1082  tmpR.wvhdl[j] = (int*) omMemDup(r2->wvhdl[i]);
1083  }
1084  j++;
1085  }
1086  }
1087  if((r1->OrdSgn==-1)||(r2->OrdSgn==-1))
1088  tmpR.OrdSgn=-1;
1089  }
1090  }
1091  else if ((k==rVar(r1)) && (k==rVar(r2))) /* r1 and r2 are "quite"
1092  the same ring */
1093  /* copy r1, because we have the variables from r1 */
1094  {
1095  int b=rBlocks(r1);
1096 
1097  tmpR.order=(rRingOrder_t*)omAlloc0(b*sizeof(rRingOrder_t));
1098  tmpR.block0=(int*)omAlloc0(b*sizeof(int));
1099  tmpR.block1=(int*)omAlloc0(b*sizeof(int));
1100  tmpR.wvhdl=(int**)omAlloc0(b*sizeof(int *));
1101  /* weights not implemented yet ...*/
1102  for (i=0;i<b;i++)
1103  {
1104  tmpR.order[i]=r1->order[i];
1105  tmpR.block0[i]=r1->block0[i];
1106  tmpR.block1[i]=r1->block1[i];
1107  if (r1->wvhdl[i]!=NULL)
1108  {
1109  tmpR.wvhdl[i] = (int*) omMemDup(r1->wvhdl[i]);
1110  }
1111  }
1112  tmpR.OrdSgn=r1->OrdSgn;
1113  }
1114  else
1115  {
1116  for(i=0;i<k;i++) omFree((ADDRESS)tmpR.names[i]);
1117  omFreeSize((ADDRESS)names,tmpR.N*sizeof(char *));
1118  Werror("variables must not overlap (# of vars: %d,%d -> %d)",rVar(r1),rVar(r2),k);
1119  return -1;
1120  }
1121  }
1122  tmpR.bitmask=si_max(r1->bitmask,r2->bitmask);
1123  sum=(ring)omAllocBin(sip_sring_bin);
1124  memcpy(sum,&tmpR,sizeof(ip_sring));
1125  rComplete(sum);
1126 
1127 //#ifdef RDEBUG
1128 // rDebugPrint(sum);
1129 //#endif
1130 
1131 
1132 
1133 #ifdef HAVE_PLURAL
1134  if(1)
1135  {
1136 // ring old_ring = currRing;
1137 
1138  BOOLEAN R1_is_nc = rIsPluralRing(r1);
1139  BOOLEAN R2_is_nc = rIsPluralRing(r2);
1140 
1141  if ( (R1_is_nc) || (R2_is_nc))
1142  {
1143  ring R1 = nc_rCreateNCcomm_rCopy(r1);
1144  assume( rIsPluralRing(R1) );
1145 
1146 #if 0
1147 #ifdef RDEBUG
1148  rWrite(R1);
1149  rDebugPrint(R1);
1150 #endif
1151 #endif
1152  ring R2 = nc_rCreateNCcomm_rCopy(r2);
1153 #if 0
1154 #ifdef RDEBUG
1155  rWrite(R2);
1156  rDebugPrint(R2);
1157 #endif
1158 #endif
1159 
1160 // rChangeCurrRing(sum); // ?
1161 
1162  // Projections from R_i into Sum:
1163  /* multiplication matrices business: */
1164  /* find permutations of vars and pars */
1165  int *perm1 = (int *)omAlloc0((rVar(R1)+1)*sizeof(int));
1166  int *par_perm1 = NULL;
1167  if (rPar(R1)!=0) par_perm1=(int *)omAlloc0((rPar(R1)+1)*sizeof(int));
1168 
1169  int *perm2 = (int *)omAlloc0((rVar(R2)+1)*sizeof(int));
1170  int *par_perm2 = NULL;
1171  if (rPar(R2)!=0) par_perm2=(int *)omAlloc0((rPar(R2)+1)*sizeof(int));
1172 
1173  maFindPerm(R1->names, rVar(R1), rParameter(R1), rPar(R1),
1174  sum->names, rVar(sum), rParameter(sum), rPar(sum),
1175  perm1, par_perm1, sum->cf->type);
1176 
1177  maFindPerm(R2->names, rVar(R2), rParameter(R2), rPar(R2),
1178  sum->names, rVar(sum), rParameter(sum), rPar(sum),
1179  perm2, par_perm2, sum->cf->type);
1180 
1181 
1182  matrix C1 = R1->GetNC()->C, C2 = R2->GetNC()->C;
1183  matrix D1 = R1->GetNC()->D, D2 = R2->GetNC()->D;
1184 
1185  // !!!! BUG? C1 and C2 might live in different baserings!!!
1186 
1187  int l = rVar(R1) + rVar(R2);
1188 
1189  matrix C = mpNew(l,l);
1190  matrix D = mpNew(l,l);
1191 
1192  for (i = 1; i <= rVar(R1); i++)
1193  for (j= rVar(R1)+1; j <= l; j++)
1194  MATELEM(C,i,j) = p_One(sum); // in 'sum'
1195 
1196  id_Test((ideal)C, sum);
1197 
1198  nMapFunc nMap1 = n_SetMap(R1->cf,sum->cf); /* can change something global: not usable
1199  after the next nSetMap call :( */
1200  // Create blocked C and D matrices:
1201  for (i=1; i<= rVar(R1); i++)
1202  for (j=i+1; j<=rVar(R1); j++)
1203  {
1204  assume(MATELEM(C1,i,j) != NULL);
1205  MATELEM(C,i,j) = p_PermPoly(MATELEM(C1,i,j), perm1, R1, sum, nMap1, par_perm1, rPar(R1)); // need ADD + CMP ops.
1206 
1207  if (MATELEM(D1,i,j) != NULL)
1208  MATELEM(D,i,j) = p_PermPoly(MATELEM(D1,i,j), perm1, R1, sum, nMap1, par_perm1, rPar(R1));
1209  }
1210 
1211  id_Test((ideal)C, sum);
1212  id_Test((ideal)D, sum);
1213 
1214 
1215  nMapFunc nMap2 = n_SetMap(R2->cf,sum->cf); /* can change something global: not usable
1216  after the next nSetMap call :( */
1217  for (i=1; i<= rVar(R2); i++)
1218  for (j=i+1; j<=rVar(R2); j++)
1219  {
1220  assume(MATELEM(C2,i,j) != NULL);
1221  MATELEM(C,rVar(R1)+i,rVar(R1)+j) = p_PermPoly(MATELEM(C2,i,j),perm2,R2,sum, nMap2,par_perm2,rPar(R2));
1222 
1223  if (MATELEM(D2,i,j) != NULL)
1224  MATELEM(D,rVar(R1)+i,rVar(R1)+j) = p_PermPoly(MATELEM(D2,i,j),perm2,R2,sum, nMap2,par_perm2,rPar(R2));
1225  }
1226 
1227  id_Test((ideal)C, sum);
1228  id_Test((ideal)D, sum);
1229 
1230  // Now sum is non-commutative with blocked structure constants!
1231  if (nc_CallPlural(C, D, NULL, NULL, sum, false, false, true, sum))
1232  WarnS("Error initializing non-commutative multiplication!");
1233 
1234  /* delete R1, R2*/
1235 
1236 #if 0
1237 #ifdef RDEBUG
1238  rWrite(sum);
1239  rDebugPrint(sum);
1240 
1241  Print("\nRefs: R1: %d, R2: %d\n", R1->GetNC()->ref, R2->GetNC()->ref);
1242 
1243 #endif
1244 #endif
1245 
1246 
1247  rDelete(R1);
1248  rDelete(R2);
1249 
1250  /* delete perm arrays */
1251  if (perm1!=NULL) omFree((ADDRESS)perm1);
1252  if (perm2!=NULL) omFree((ADDRESS)perm2);
1253  if (par_perm1!=NULL) omFree((ADDRESS)par_perm1);
1254  if (par_perm2!=NULL) omFree((ADDRESS)par_perm2);
1255 
1256 // rChangeCurrRing(old_ring);
1257  }
1258 
1259  }
1260 #endif
1261 
1262  ideal Q=NULL;
1263  ideal Q1=NULL, Q2=NULL;
1264  if (r1->qideal!=NULL)
1265  {
1266 // rChangeCurrRing(sum);
1267 // if (r2->qideal!=NULL)
1268 // {
1269 // WerrorS("todo: qring+qring");
1270 // return -1;
1271 // }
1272 // else
1273 // {}
1274  /* these were defined in the Plural Part above... */
1275  int *perm1 = (int *)omAlloc0((rVar(r1)+1)*sizeof(int));
1276  int *par_perm1 = NULL;
1277  if (rPar(r1)!=0) par_perm1=(int *)omAlloc0((rPar(r1)+1)*sizeof(int));
1278  maFindPerm(r1->names, rVar(r1), rParameter(r1), rPar(r1),
1279  sum->names, rVar(sum), rParameter(sum), rPar(sum),
1280  perm1, par_perm1, sum->cf->type);
1281  nMapFunc nMap1 = n_SetMap(r1->cf,sum->cf);
1282  Q1 = idInit(IDELEMS(r1->qideal),1);
1283 
1284  for (int for_i=0;for_i<IDELEMS(r1->qideal);for_i++)
1285  Q1->m[for_i] = p_PermPoly(
1286  r1->qideal->m[for_i], perm1,
1287  r1, sum,
1288  nMap1,
1289  par_perm1, rPar(r1));
1290 
1291  omFree((ADDRESS)perm1);
1292  }
1293 
1294  if (r2->qideal!=NULL)
1295  {
1296  //if (currRing!=sum)
1297  // rChangeCurrRing(sum);
1298  int *perm2 = (int *)omAlloc0((rVar(r2)+1)*sizeof(int));
1299  int *par_perm2 = NULL;
1300  if (rPar(r2)!=0) par_perm2=(int *)omAlloc0((rPar(r2)+1)*sizeof(int));
1301  maFindPerm(r2->names, rVar(r2), rParameter(r2), rPar(r2),
1302  sum->names, rVar(sum), rParameter(sum), rPar(sum),
1303  perm2, par_perm2, sum->cf->type);
1304  nMapFunc nMap2 = n_SetMap(r2->cf,sum->cf);
1305  Q2 = idInit(IDELEMS(r2->qideal),1);
1306 
1307  for (int for_i=0;for_i<IDELEMS(r2->qideal);for_i++)
1308  Q2->m[for_i] = p_PermPoly(
1309  r2->qideal->m[for_i], perm2,
1310  r2, sum,
1311  nMap2,
1312  par_perm2, rPar(r2));
1313 
1314  omFree((ADDRESS)perm2);
1315  }
1316  if (Q1!=NULL)
1317  {
1318  if ( Q2!=NULL)
1319  Q = id_SimpleAdd(Q1,Q2,sum);
1320  else
1321  Q=id_Copy(Q1,sum);
1322  }
1323  else
1324  {
1325  if ( Q2!=NULL)
1326  Q = id_Copy(Q2,sum);
1327  else
1328  Q=NULL;
1329  }
1330  sum->qideal = Q;
1331 
1332 #ifdef HAVE_PLURAL
1333  if( rIsPluralRing(sum) )
1334  nc_SetupQuotient( sum );
1335 #endif
1336  return 1;
1337 }
static int si_max(const int a, const int b)
Definition: auxiliary.h:124
@ n_R
single prescision (6,6) real numbers
Definition: coeffs.h:31
@ n_Znm
only used if HAVE_RINGS is defined
Definition: coeffs.h:45
@ n_Zn
only used if HAVE_RINGS is defined
Definition: coeffs.h:44
STATIC_VAR jList * Q
Definition: janet.cc:30
void maFindPerm(char const *const *const preim_names, int preim_n, char const *const *const preim_par, int preim_p, char const *const *const names, int n, char const *const *const par, int nop, int *perm, int *par_perm, n_coeffType ch)
Definition: maps.cc:163
#define omAllocBin(bin)
Definition: omAllocDecl.h:205
int rChar(ring r)
Definition: ring.cc:711
ring nc_rCreateNCcomm_rCopy(ring r)
Definition: ring.cc:717
ideal idInit(int idsize, int rank)
initialise an ideal / module
Definition: simpleideals.cc:35
ideal id_SimpleAdd(ideal h1, ideal h2, const ring R)
concat the lists h1 and h2 without zeros
Definition: ring.h:248
n_Procs_s * cf
Definition: ring.h:368
int * block0
Definition: ring.h:254
short N
Definition: ring.h:303
int * block1
Definition: ring.h:255
rRingOrder_t * order
Definition: ring.h:253
int ** wvhdl
Definition: ring.h:257
unsigned long bitmask
Definition: ring.h:350
char ** names
Definition: ring.h:258
short OrdSgn
Definition: ring.h:305

◆ rTypeOfMatrixOrder()

int rTypeOfMatrixOrder ( const intvec order)

Definition at line 185 of file ring.cc.

186 {
187  int i=0,j,typ=1;
188  int sz = (int)sqrt((double)(order->length()-2));
189  if ((sz*sz)!=(order->length()-2))
190  {
191  WerrorS("Matrix order is not a square matrix");
192  typ=0;
193  }
194  while ((i<sz) && (typ==1))
195  {
196  j=0;
197  while ((j<sz) && ((*order)[j*sz+i+2]==0)) j++;
198  if (j>=sz)
199  {
200  typ = 0;
201  WerrorS("Matrix order not complete");
202  }
203  else if ((*order)[j*sz+i+2]<0)
204  typ = -1;
205  else
206  i++;
207  }
208  return typ;
209 }
gmp_float sqrt(const gmp_float &a)
Definition: mpr_complex.cc:327

◆ rUnComplete()

void rUnComplete ( ring  r)

Definition at line 3910 of file ring.cc.

3911 {
3912  if (r == NULL) return;
3913  if (r->VarOffset != NULL)
3914  {
3915  if (r->OrdSize!=0 && r->typ != NULL)
3916  {
3917  for(int i = 0; i < r->OrdSize; i++)
3918  if( r->typ[i].ord_typ == ro_is) // Search for suffixes! (prefix have the same VarOffset)
3919  {
3920  id_Delete(&r->typ[i].data.is.F, r);
3921 
3922  if( r->typ[i].data.is.pVarOffset != NULL )
3923  {
3924  omFreeSize((ADDRESS)r->typ[i].data.is.pVarOffset, (r->N +1)*sizeof(int));
3925  }
3926  }
3927  else if (r->typ[i].ord_typ == ro_syz)
3928  {
3929  if(r->typ[i].data.syz.limit > 0)
3930  omFreeSize(r->typ[i].data.syz.syz_index, ((r->typ[i].data.syz.limit) +1)*sizeof(int));
3931  }
3932  else if (r->typ[i].ord_typ == ro_syzcomp)
3933  {
3934  assume( r->typ[i].data.syzcomp.ShiftedComponents == NULL );
3935  assume( r->typ[i].data.syzcomp.Components == NULL );
3936 // WarnS( "rUnComplete : ord_typ == ro_syzcomp was unhandled!!! Possibly memory leak!!!" );
3937 #ifndef SING_NDEBUG
3938 // assume(0);
3939 #endif
3940  }
3941 
3942  omFreeSize((ADDRESS)r->typ,r->OrdSize*sizeof(sro_ord)); r->typ = NULL;
3943  }
3944 
3945  if (r->PolyBin != NULL)
3946  omUnGetSpecBin(&(r->PolyBin));
3947 
3948  omFreeSize((ADDRESS)r->VarOffset, (r->N +1)*sizeof(int));
3949  r->VarOffset=NULL;
3950 
3951  if (r->ordsgn != NULL && r->CmpL_Size != 0)
3952  {
3953  omFreeSize((ADDRESS)r->ordsgn,r->ExpL_Size*sizeof(long));
3954  r->ordsgn=NULL;
3955  }
3956  if (r->p_Procs != NULL)
3957  {
3958  omFreeSize(r->p_Procs, sizeof(p_Procs_s));
3959  r->p_Procs=NULL;
3960  }
3961  omfreeSize(r->VarL_Offset, r->VarL_Size*sizeof(int));
3962  r->VarL_Offset=NULL;
3963  }
3964  if (r->NegWeightL_Offset!=NULL)
3965  {
3966  omFreeSize(r->NegWeightL_Offset, r->NegWeightL_Size*sizeof(int));
3967  r->NegWeightL_Offset=NULL;
3968  }
3969 }
#define omfreeSize(addr, size)
Definition: omAllocDecl.h:236
#define omUnGetSpecBin(bin_ptr)
Definition: omBin.h:14

◆ rVarStr()

char* rVarStr ( ring  r)

Definition at line 621 of file ring.cc.

622 {
623  if ((r==NULL)||(r->names==NULL)) return omStrDup("");
624  int i;
625  int l=2;
626  char *s;
627 
628  for (i=0; i<r->N; i++)
629  {
630  l+=strlen(r->names[i])+1;
631  }
632  s=(char *)omAlloc((long)l);
633  s[0]='\0';
634  for (i=0; i<r->N-1; i++)
635  {
636  strcat(s,r->names[i]);
637  strcat(s,",");
638  }
639  strcat(s,r->names[i]);
640  return s;
641 }

◆ rWrite()

void rWrite ( ring  r,
BOOLEAN  details 
)

Definition at line 226 of file ring.cc.

227 {
228  if ((r==NULL)||(r->order==NULL))
229  return; /*to avoid printing after errors....*/
230 
231  assume(r != NULL);
232  const coeffs C = r->cf;
233  assume(C != NULL);
234 
235  int nblocks=rBlocks(r);
236 
237  // omCheckAddrSize(r,sizeof(ip_sring));
238  omCheckAddrSize(r->order,nblocks*sizeof(int));
239  omCheckAddrSize(r->block0,nblocks*sizeof(int));
240  omCheckAddrSize(r->block1,nblocks*sizeof(int));
241  omCheckAddrSize(r->wvhdl,nblocks*sizeof(int *));
242  omCheckAddrSize(r->names,r->N*sizeof(char *));
243 
244  nblocks--;
245 
246 
247  //Print("ref:%d, C->ref:%d\n",r->ref,C->ref);
248  PrintS("// coefficients: ");
249  if( nCoeff_is_algExt(C) )
250  {
251  // NOTE: the following (non-thread-safe!) UGLYNESS
252  // (changing naRing->ShortOut for a while) is due to Hans!
253  // Just think of other ring using the VERY SAME naRing and possible
254  // side-effects...
255  ring R = C->extRing;
256  const BOOLEAN bSaveShortOut = rShortOut(R); R->ShortOut = rShortOut(r) & rCanShortOut(R);
257 
258  n_CoeffWrite(C, details); // for correct printing of minpoly... WHAT AN UGLYNESS!!!
259 
260  R->ShortOut = bSaveShortOut;
261  }
262  else
263  n_CoeffWrite(C, details);
264  PrintLn();
265 // {
266 // PrintS("// characteristic : ");
267 //
268 // char const * const * const params = rParameter(r);
269 //
270 // if (params!=NULL)
271 // {
272 // Print ("// %d parameter : ",rPar(r));
273 //
274 // char const * const * sp= params;
275 // int nop=0;
276 // while (nop<rPar(r))
277 // {
278 // PrintS(*sp);
279 // PrintS(" ");
280 // sp++; nop++;
281 // }
282 // PrintS("\n// minpoly : ");
283 // if ( rField_is_long_C(r) )
284 // {
285 // // i^2+1:
286 // Print("(%s^2+1)\n", params[0]);
287 // }
288 // else if (rMinpolyIsNULL(r))
289 // {
290 // PrintS("0\n");
291 // }
292 // else
293 // {
294 // StringSetS(""); n_Write(r->cf->minpoly, r); PrintS(StringEndS("\n")); // NOTE/TODO: use StringAppendS("\n"); omFree(s);
295 // }
296 // //if (r->qideal!=NULL)
297 // //{
298 // // iiWriteMatrix((matrix)r->qideal,"// minpolys",1,r,0);
299 // // PrintLn();
300 // //}
301 // }
302 // }
303  Print("// number of vars : %d",r->N);
304 
305  //for (nblocks=0; r->order[nblocks]; nblocks++);
306  nblocks=rBlocks(r)-1;
307 
308  for (int l=0, nlen=0 ; l<nblocks; l++)
309  {
310  int i;
311  Print("\n// block %3d : ",l+1);
312 
313  Print("ordering %s", rSimpleOrdStr(r->order[l]));
314 
315 
316  if (r->order[l] == ringorder_IS)
317  {
318  assume( r->block0[l] == r->block1[l] );
319  const int s = r->block0[l];
320  assume( (-2 < s) && (s < 2) );
321  Print("(%d)", s); // 0 => prefix! +/-1 => suffix!
322  continue;
323  }
324  else if (r->order[l]==ringorder_s)
325  {
326  assume( l == 0 );
327  Print(" syz_comp: %d",r->block0[l]);
328  continue;
329  }
330  else if (
331  ( (r->order[l] >= ringorder_lp)
332  ||(r->order[l] == ringorder_M)
333  ||(r->order[l] == ringorder_a)
334  ||(r->order[l] == ringorder_am)
335  ||(r->order[l] == ringorder_a64)
336  ||(r->order[l] == ringorder_aa) ) && (r->order[l] < ringorder_IS) )
337  {
338  PrintS("\n// : names ");
339  for (i = r->block0[l]-1; i<r->block1[l]; i++)
340  {
341  nlen = strlen(r->names[i]);
342  Print(" %s",r->names[i]);
343  }
344  }
345 
346  if (r->wvhdl[l]!=NULL)
347  {
348  #ifndef SING_NDEBUG
349  if((r->order[l] != ringorder_wp)
350  &&(r->order[l] != ringorder_Wp)
351  &&(r->order[l] != ringorder_ws)
352  &&(r->order[l] != ringorder_Ws)
353  &&(r->order[l] != ringorder_a)
354  &&(r->order[l] != ringorder_am)
355  &&(r->order[l] != ringorder_M))
356  {
357  Warn("should not have wvhdl entry at pos. %d",l);
358  }
359  #endif
360  for (int j= 0;
361  j<(r->block1[l]-r->block0[l]+1)*(r->block1[l]-r->block0[l]+1);
362  j+=i)
363  {
364  PrintS("\n// : weights ");
365  for (i = 0; i<=r->block1[l]-r->block0[l]; i++)
366  {
367  if (r->order[l] == ringorder_a64)
368  {
369  int64 *w=(int64 *)r->wvhdl[l];
370  #if SIZEOF_LONG == 4
371  Print("%*lld " ,nlen,w[i+j]);
372  #else
373  Print(" %*ld" ,nlen,w[i+j]);
374  #endif
375  }
376  else
377  Print(" %*d" ,nlen,r->wvhdl[l][i+j]);
378  }
379  if (r->order[l]!=ringorder_M) break;
380  }
381  if (r->order[l]==ringorder_am)
382  {
383  int m=r->wvhdl[l][i];
384  Print("\n// : %d module weights ",m);
385  m+=i;i++;
386  for(;i<=m;i++) Print(" %*d" ,nlen,r->wvhdl[l][i]);
387  }
388  }
389  }
390 #ifdef HAVE_PLURAL
391  if(rIsPluralRing(r))
392  {
393  PrintS("\n// noncommutative relations:");
394  if( details )
395  {
396  poly pl=NULL;
397  int nl;
398  int i,j;
399  for (i = 1; i<r->N; i++)
400  {
401  for (j = i+1; j<=r->N; j++)
402  {
403  nl = n_IsOne(p_GetCoeff(MATELEM(r->GetNC()->C,i,j),r), r->cf);
404  if ( (MATELEM(r->GetNC()->D,i,j)!=NULL) || (!nl) )
405  {
406  Print("\n// %s%s=",r->names[j-1],r->names[i-1]);
407  pl = MATELEM(r->GetNC()->MT[UPMATELEM(i,j,r->N)],1,1);
408  p_Write0(pl, r, r);
409  }
410  }
411  }
412  } else
413  PrintS(" ...");
414 
415 #if MYTEST /*Singularg should not differ from Singular except in error case*/
416  Print("\n// noncommutative type:%d", (int)ncRingType(r));
417  Print("\n// is skew constant:%d",r->GetNC()->IsSkewConstant);
418  if( rIsSCA(r) )
419  {
420  Print("\n// alternating variables: [%d, %d]", scaFirstAltVar(r), scaLastAltVar(r));
421  const ideal Q = SCAQuotient(r); // resides within r!
422  PrintS("\n// quotient of sca by ideal");
423 
424  if (Q!=NULL)
425  {
426  iiWriteMatrix((matrix)Q,"scaQ",1,r,0);
427  }
428  else
429  PrintS(" (NULL)");
430  }
431 #endif
432  }
433  if (rIsLPRing(r))
434  {
435  Print("\n// letterplace ring (block size %d, ncgen count %d)",r->isLPring, r->LPncGenCount);
436  }
437 #endif
438  if (r->qideal!=NULL)
439  {
440  PrintS("\n// quotient ring from ideal");
441  if( details )
442  {
443  PrintLn();
444  iiWriteMatrix((matrix)r->qideal,"_",1,r,0);
445  } else PrintS(" ...");
446  }
447 }
static FORCE_INLINE void n_CoeffWrite(const coeffs r, BOOLEAN details=TRUE)
output the coeff description
Definition: coeffs.h:719
static FORCE_INLINE BOOLEAN n_IsOne(number n, const coeffs r)
TRUE iff 'n' represents the one element.
Definition: coeffs.h:468
#define UPMATELEM(i, j, nVar)
Definition: nc.h:36
void iiWriteMatrix(matrix im, const char *n, int dim, const ring r, int spaces)
set spaces to zero by default
Definition: matpol.cc:834
void p_Write0(poly p, ring lmRing, ring tailRing)
Definition: polys0.cc:332
static BOOLEAN rShortOut(const ring r)
Definition: ring.h:582
static BOOLEAN rCanShortOut(const ring r)
Definition: ring.h:587
ideal SCAQuotient(const ring r)
Definition: sca.h:10

◆ sign()

static int sign ( int  x)
inlinestatic

Definition at line 3372 of file ring.cc.

3372 { return (x > 0) - (x < 0);}
Variable x
Definition: cfModGcd.cc:4082

Variable Documentation

◆ char_ptr_bin

VAR omBin char_ptr_bin = omGetSpecBin(sizeof(char_ptr))

Definition at line 44 of file ring.cc.

◆ pDBsyzComp

VAR int pDBsyzComp =0

Definition at line 5023 of file ring.cc.

◆ ringorder_name

const char* const ringorder_name[]
static
Initial value:
=
{
" ?",
"a",
"A",
"c",
"C",
"M",
"S",
"s",
"lp",
"dp",
"rp",
"Dp",
"wp",
"Wp",
"ls",
"ds",
"Ds",
"ws",
"Ws",
"am",
"L",
"aa",
"rs",
"IS",
" _"
}

Definition at line 47 of file ring.cc.

◆ sip_sring_bin

VAR omBin sip_sring_bin = omGetSpecBin(sizeof(ip_sring))

Definition at line 43 of file ring.cc.