version 1.1, 1999/12/03 07:39:08 |
version 1.5, 2001/04/19 04:52:41 |
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/* $OpenXM: OpenXM/src/asir99/engine/F.c,v 1.1.1.1 1999/11/10 08:12:26 noro Exp $ */ |
/* |
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* Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED |
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* All rights reserved. |
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* |
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* FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited, |
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* non-exclusive and royalty-free license to use, copy, modify and |
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* redistribute, solely for non-commercial and non-profit purposes, the |
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* computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and |
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* conditions of this Agreement. For the avoidance of doubt, you acquire |
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* only a limited right to use the SOFTWARE hereunder, and FLL or any |
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* third party developer retains all rights, including but not limited to |
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* copyrights, in and to the SOFTWARE. |
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* |
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* (1) FLL does not grant you a license in any way for commercial |
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* purposes. You may use the SOFTWARE only for non-commercial and |
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* non-profit purposes only, such as academic, research and internal |
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* business use. |
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* (2) The SOFTWARE is protected by the Copyright Law of Japan and |
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* international copyright treaties. If you make copies of the SOFTWARE, |
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* with or without modification, as permitted hereunder, you shall affix |
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* to all such copies of the SOFTWARE the above copyright notice. |
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* (3) An explicit reference to this SOFTWARE and its copyright owner |
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* shall be made on your publication or presentation in any form of the |
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* results obtained by use of the SOFTWARE. |
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* (4) In the event that you modify the SOFTWARE, you shall notify FLL by |
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* e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification |
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* for such modification or the source code of the modified part of the |
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* SOFTWARE. |
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* |
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* THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL |
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* MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND |
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* EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS |
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* FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES' |
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* RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY |
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* MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY. |
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* UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, TORT, CONTRACT, |
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* OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL |
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* DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES |
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* ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES |
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* FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY |
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* DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF |
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* SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART |
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* OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY |
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* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
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* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
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* |
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* $OpenXM: OpenXM_contrib2/asir2000/engine/F.c,v 1.4 2000/08/22 05:04:04 noro Exp $ |
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*/ |
#include "ca.h" |
#include "ca.h" |
#include <math.h> |
#include <math.h> |
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adjsgn(f,dc0); *dcp = dc0; |
adjsgn(f,dc0); *dcp = dc0; |
} |
} |
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#if 0 |
void adjsgn(p,dc) |
void adjsgn(p,dc) |
P p; |
P p; |
DCP dc; |
DCP dc; |
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chsgnp(COEF(dc),&c); COEF(dc) = c; |
chsgnp(COEF(dc),&c); COEF(dc) = c; |
} |
} |
} |
} |
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#else |
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void adjsgn(p,dc) |
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P p; |
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DCP dc; |
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{ |
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int sgn; |
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DCP dct; |
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P c; |
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if ( headsgn(COEF(dc)) != headsgn(p) ) { |
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chsgnp(COEF(dc),&c); COEF(dc) = c; |
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} |
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for ( dct = NEXT(dc); dct; dct = NEXT(dct) ) |
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if ( headsgn(COEF(dct)) < 0 ) { |
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chsgnp(COEF(dct),&c); COEF(dct) = c; |
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} |
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} |
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#endif |
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int headsgn(p) |
int headsgn(p) |
P p; |
P p; |
{ |
{ |
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P p; |
P p; |
DCP *dcp; |
DCP *dcp; |
{ |
{ |
int i,j,k,*win,np; |
int i,j,k,*win,np,x; |
VL nvl,tvl; |
VL nvl,tvl; |
VN vn,vnt,vn1; |
VN vn,vnt,vn1; |
P p0,f,g,f0,g0,s,t,lp,m; |
P p0,f,g,f0,g0,s,t,lp,m; |
P *fp0,*fpt,*l,*tl; |
P *fp0,*fpt,*l,*tl; |
DCP dc,dc0,dcl; |
DCP dc,dc0,dcl; |
int count,nv; |
int count,nv; |
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int *nonzero; |
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if ( !cmpq(DEG(DC(p)),ONE) ) { |
if ( !cmpq(DEG(DC(p)),ONE) ) { |
NEWDC(dc); DEG(dc) = ONE; COEF(dc) = p; NEXT(dc) = 0; |
NEWDC(dc); DEG(dc) = ONE; COEF(dc) = p; NEXT(dc) = 0; |
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for ( nv = 0, tvl = nvl; tvl; tvl = NEXT(tvl), nv++); |
for ( nv = 0, tvl = nvl; tvl; tvl = NEXT(tvl), nv++); |
W_CALLOC(nv,struct oVN,vn); W_CALLOC(nv,struct oVN,vnt); |
W_CALLOC(nv,struct oVN,vn); W_CALLOC(nv,struct oVN,vnt); |
W_CALLOC(nv,struct oVN,vn1); |
W_CALLOC(nv,struct oVN,vn1); |
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W_CALLOC(nv,int,nonzero); |
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for ( i = 0, tvl = NEXT(nvl); tvl; tvl = NEXT(tvl), i++ ) |
for ( i = 0, tvl = NEXT(nvl); tvl; tvl = NEXT(tvl), i++ ) |
vn1[i].v = vn[i].v = tvl->v; |
vn1[i].v = vn[i].v = tvl->v; |
vn1[i].v = vn[i].v = 0; |
vn1[i].v = vn[i].v = 0; |
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/* determine a heuristic bound of deg(GCD(p,p')) */ |
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while ( 1 ) { |
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for ( i = 0; vn1[i].v; i++ ) |
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vn1[i].n = ((unsigned int)random())%256+1; |
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substvp(nvl,LC(p),vn1,&p0); |
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if ( p0 ) { |
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substvp(nvl,p,vn1,&p0); |
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if ( sqfrchk(p0) ) { |
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ufctr(p0,1,&dc0); |
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if ( NEXT(NEXT(dc0)) == 0 ) { |
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NEWDC(dc); DEG(dc) = ONE; COEF(dc) = p; NEXT(dc) = 0; |
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*dcp = dc; |
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return; |
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} else { |
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for ( dc0 = NEXT(dc0), np = 0; dc0; dc0 = NEXT(dc0), np++ ); |
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break; |
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} |
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} |
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} |
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} |
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for ( i = 0; vn1[i].v; i++ ) { |
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x = vn1[i].n; vn1[i].n = 0; |
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substvp(nvl,LC(p),vn1,&p0); |
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if ( !p0 ) |
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vn1[i].n = x; |
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else { |
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substvp(nvl,p,vn1,&p0); |
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if ( !sqfrchk(p0) ) |
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vn1[i].n = x; |
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else { |
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ufctr(p0,1,&dc0); |
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for ( dc0 = NEXT(dc0), j = 0; dc0; dc0 = NEXT(dc0), j++ ); |
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if ( j > np ) |
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vn1[i].n = x; |
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} |
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} |
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} |
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for ( i = 0; vn1[i].v; i++ ) |
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if (vn1[i].n ) |
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nonzero[i] = 1; |
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count = 0; |
count = 0; |
while ( 1 ) { |
while ( 1 ) { |
while ( 1 ) { |
while ( 1 ) { |
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NEWDC(dc); DEG(dc) = ONE; COEF(dc) = p; NEXT(dc) = 0; |
NEWDC(dc); DEG(dc) = ONE; COEF(dc) = p; NEXT(dc) = 0; |
*dcp = dc; |
*dcp = dc; |
return; |
return; |
} else |
} else { |
goto MAIN; |
for ( dc = NEXT(dc0), i = 0; dc; dc = NEXT(dc), i++ ); |
} |
if ( i <= np ) |
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goto MAIN; |
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if ( i < np ) |
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np = i; |
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} |
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} |
} |
} |
if ( nextbin(vnt,j) ) |
if ( nextbin(vnt,j) ) |
break; |
break; |
} |
} |
next(vn); |
while ( 1 ) { |
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next(vn); |
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for ( i = 0; vn[i].v; i++ ) |
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if ( nonzero[i] && !vn[i].n ) |
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break; |
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if ( !vn[i].v ) |
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break; |
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} |
} |
} |
MAIN : |
MAIN : |
#if 0 |
#if 0 |
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for ( i = 0, tvl = NEXT(nvl); tvl; tvl = NEXT(tvl), i++ ) |
for ( i = 0, tvl = NEXT(nvl); tvl; tvl = NEXT(tvl), i++ ) |
vn1[i].v = vn[i].v = tvl->v; |
vn1[i].v = vn[i].v = tvl->v; |
vn1[i].v = vn[i].v = 0; |
vn1[i].v = vn[i].v = 0; |
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/* determine a heuristic bound of deg(GCD(p,p')) */ |
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while ( 1 ) { |
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for ( i = 0; vn1[i].v; i++ ) |
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vn1[i].n = ((unsigned int)random())%256+1; |
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substvp(nvl,LC(p),vn1,&tmp); |
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if ( tmp ) { |
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substvp(nvl,p,vn1,&p0); |
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usqp(p0,&dc0); |
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for ( d1 = 0, dc = dc0; dc; dc = NEXT(dc) ) |
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if ( DEG(dc) ) |
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d1 += (QTOS(DEG(dc))-1)*UDEG(COEF(dc)); |
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if ( d1 == 0 ) { |
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/* p is squarefree */ |
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NEWDC(dc); DEG(dc) = ONE; COEF(dc) = p; NEXT(dc) = 0; |
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*dcp = dc; |
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return; |
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} else { |
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d = d1; |
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break; |
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} |
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} |
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} |
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for ( dcr0 = 0, g = p, d = deg(VR(g),g), found = 0; ; ) { |
for ( dcr0 = 0, g = p, d = deg(VR(g),g), found = 0; ; ) { |
while ( 1 ) { |
while ( 1 ) { |