[35aab3] | 1 | /**************************************** |
---|
| 2 | * Computer Algebra System SINGULAR * |
---|
| 3 | ****************************************/ |
---|
| 4 | /*************************************************************** |
---|
| 5 | * File: pp_Mult_Coeff_mm_DivSelect__Template.cc |
---|
| 6 | * Purpose: template for pp_Mult_Coeff_mm__DivSelect |
---|
| 7 | * Author: obachman (Olaf Bachmann) |
---|
| 8 | * Created: 8/00 |
---|
| 9 | * Version: $Id: pp_Mult_Coeff_mm_DivSelect__T.cc,v 1.1.1.1 2003-10-06 12:16:02 Singular Exp $ |
---|
| 10 | *******************************************************************/ |
---|
| 11 | |
---|
| 12 | /*************************************************************** |
---|
| 13 | * |
---|
| 14 | * Returns: p*Coeff(m) for such monomials pm of p, for which |
---|
| 15 | * m is divisble by pm |
---|
| 16 | * Const: p, m |
---|
| 17 | * |
---|
| 18 | ***************************************************************/ |
---|
| 19 | LINKAGE poly pp_Mult_Coeff_mm_DivSelect(poly p, const poly m, int &shorter, |
---|
| 20 | const ring r) |
---|
| 21 | { |
---|
| 22 | number n = pGetCoeff(m); |
---|
| 23 | pAssume(!n_IsZero(n,r)); |
---|
| 24 | p_Test(p, r); |
---|
| 25 | if (p == NULL) return NULL; |
---|
| 26 | spolyrec rp; |
---|
| 27 | DECLARE_LENGTH(const unsigned long length = r->ExpL_Size); |
---|
| 28 | int Shorter = 0; |
---|
| 29 | poly q = &rp; |
---|
| 30 | omBin bin = r->PolyBin; |
---|
| 31 | |
---|
| 32 | do |
---|
| 33 | { |
---|
| 34 | if (p_LmDivisibleByNoComp(m, p, r)) |
---|
| 35 | { |
---|
| 36 | p_AllocBin(pNext(q), bin, r); |
---|
| 37 | q = pNext(q); |
---|
| 38 | number nc = pGetCoeff(p); |
---|
| 39 | pSetCoeff0(q, n_Mult(n, nc, r)); |
---|
| 40 | p_MemCopy(q->exp, p->exp, length); |
---|
| 41 | } |
---|
| 42 | else |
---|
| 43 | { |
---|
| 44 | Shorter++; |
---|
| 45 | } |
---|
| 46 | pIter(p); |
---|
| 47 | } |
---|
| 48 | while (p != NULL); |
---|
| 49 | pNext(q) = NULL; |
---|
| 50 | |
---|
| 51 | shorter = Shorter; |
---|
| 52 | p_Test(rp.next, r); |
---|
| 53 | return rp.next; |
---|
| 54 | } |
---|
| 55 | |
---|
| 56 | |
---|