spielwiese
Last change
on this file since 85bcd6 was
6ce030f,
checked in by Oleksandr Motsak <motsak@…>, 12 years ago
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removal of the $Id$ svn tag from everywhere
NOTE: the git SHA1 may be used instead (only on special places)
NOTE: the libraries Singular/LIB/*.lib still contain the marker due to our current use of svn
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-
Property mode set to
100644
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File size:
1.3 KB
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1 | /**************************************** |
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2 | * Computer Algebra System SINGULAR * |
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3 | ****************************************/ |
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4 | /*************************************************************** |
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5 | * File: p_Mult_n__Template.cc |
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6 | * Purpose: template for p_Mult_n |
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7 | * Author: obachman (Olaf Bachmann) |
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8 | * Created: 8/00 |
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9 | *******************************************************************/ |
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10 | |
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11 | /*************************************************************** |
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12 | * |
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13 | * Returns: p*n |
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14 | * Destroys: p |
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15 | * Const: n |
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16 | * |
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17 | ***************************************************************/ |
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18 | LINKAGE poly p_Mult_nn__T(poly p, const number n, const ring r) |
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19 | { |
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20 | pAssume(!n_IsZero__T(n,r)); |
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21 | p_Test(p, r); |
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22 | |
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23 | poly q = p; |
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24 | #ifdef HAVE_ZERODIVISORS |
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25 | poly old = NULL; |
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26 | #endif |
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27 | while (p != NULL) |
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28 | { |
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29 | #ifndef HAVE_ZERODIVISORS |
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30 | n_InpMult__T(pGetCoeff(p), n, r); |
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31 | pIter(p); |
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32 | #else |
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33 | number tmp = n_Mult__T(n, pGetCoeff(p), r); |
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34 | if (!n_IsZero__T(tmp,r)) |
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35 | { |
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36 | number nc = pGetCoeff(p); |
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37 | p_SetCoeff0(p, tmp, r); |
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38 | n_Delete__T(&nc, r); |
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39 | old = p; |
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40 | pIter(p); |
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41 | } |
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42 | else |
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43 | { |
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44 | n_Delete__T(&tmp, r); |
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45 | if (old == NULL) |
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46 | { |
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47 | pIter(p); |
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48 | p_LmDelete(&q, r); |
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49 | } |
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50 | else |
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51 | { |
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52 | p_LmDelete(&p, r); |
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53 | pNext(old) = p; |
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54 | } |
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55 | } |
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56 | #endif |
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57 | } |
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58 | p_Test(q, r); |
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59 | return q; |
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60 | } |
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