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Annotation of OpenXM_contrib2/asir2000/engine/M.c, Revision 1.7

1.2       noro        1: /*
                      2:  * Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED
                      3:  * All rights reserved.
                      4:  *
                      5:  * FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
                      6:  * non-exclusive and royalty-free license to use, copy, modify and
                      7:  * redistribute, solely for non-commercial and non-profit purposes, the
                      8:  * computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
                      9:  * conditions of this Agreement. For the avoidance of doubt, you acquire
                     10:  * only a limited right to use the SOFTWARE hereunder, and FLL or any
                     11:  * third party developer retains all rights, including but not limited to
                     12:  * copyrights, in and to the SOFTWARE.
                     13:  *
                     14:  * (1) FLL does not grant you a license in any way for commercial
                     15:  * purposes. You may use the SOFTWARE only for non-commercial and
                     16:  * non-profit purposes only, such as academic, research and internal
                     17:  * business use.
                     18:  * (2) The SOFTWARE is protected by the Copyright Law of Japan and
                     19:  * international copyright treaties. If you make copies of the SOFTWARE,
                     20:  * with or without modification, as permitted hereunder, you shall affix
                     21:  * to all such copies of the SOFTWARE the above copyright notice.
                     22:  * (3) An explicit reference to this SOFTWARE and its copyright owner
                     23:  * shall be made on your publication or presentation in any form of the
                     24:  * results obtained by use of the SOFTWARE.
                     25:  * (4) In the event that you modify the SOFTWARE, you shall notify FLL by
1.3       noro       26:  * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
1.2       noro       27:  * for such modification or the source code of the modified part of the
                     28:  * SOFTWARE.
                     29:  *
                     30:  * THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL
                     31:  * MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND
                     32:  * EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
                     33:  * FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'
                     34:  * RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY
                     35:  * MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.
                     36:  * UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, TORT, CONTRACT,
                     37:  * OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY
                     38:  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
                     39:  * DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES
                     40:  * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
                     41:  * FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY
                     42:  * DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF
                     43:  * SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART
                     44:  * OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY
                     45:  * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
                     46:  * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
                     47:  *
1.7     ! noro       48:  * $OpenXM: OpenXM_contrib2/asir2000/engine/M.c,v 1.6 2001/06/25 01:35:21 noro Exp $
1.2       noro       49: */
1.1       noro       50: #include "ca.h"
                     51: #include "base.h"
                     52:
                     53: void addum(mod,p1,p2,pr)
                     54: int mod;
                     55: UM p1,p2,pr;
                     56: {
                     57:        register int *c1,*c2,*cr,i,dmax,dmin;
                     58:
                     59:        if ( DEG(p1) == -1 ) {
                     60:                cpyum(p2,pr);
                     61:                return;
                     62:        }
                     63:        if ( DEG(p2) == -1 ) {
                     64:                cpyum(p1,pr);
                     65:                return;
                     66:        }
                     67:        if ( DEG(p1) >= DEG(p2) ) {
                     68:                c1 = COEF(p1); c2 = COEF(p2); dmax = DEG(p1); dmin = DEG(p2);
                     69:        } else {
                     70:                c1 = COEF(p2); c2 = COEF(p1); dmax = DEG(p2); dmin = DEG(p1);
                     71:        }
                     72:        for ( i = 0, cr = COEF(pr); i <= dmin; i++ )
                     73:                cr[i] = ( c1[i] + c2[i] ) % mod;
                     74:        for ( ; i <= dmax; i++ )
                     75:                cr[i] = c1[i];
                     76:        if ( dmax == dmin )
                     77:                degum(pr,dmax);
                     78:        else
                     79:                DEG(pr) = dmax;
                     80: }
                     81:
                     82: void subum(mod,p1,p2,pr)
                     83: int mod;
                     84: UM p1,p2,pr;
                     85: {
                     86:        register int *c1,*c2,*cr,i;
                     87:        int dmax,dmin;
                     88:
                     89:        if ( DEG(p1) == -1 ) {
                     90:                for ( i = DEG(pr) = DEG(p2), c2 = COEF(p2), cr = COEF(pr);
                     91:                          i >= 0; i-- )
                     92:                        cr[i] = ( mod - c2[i] ) % mod;
                     93:                return;
                     94:        }
                     95:        if ( DEG(p2) == -1 ) {
                     96:                cpyum(p1,pr);
                     97:                return;
                     98:        }
                     99:        c1 = COEF(p1); c2 = COEF(p2); cr = COEF(pr);
                    100:        if ( DEG(p1) >= DEG(p2) ) {
                    101:                dmax = DEG(p1); dmin = DEG(p2);
                    102:                for ( i = 0; i <= dmin; i++ )
                    103:                        cr[i] = ( c1[i] + mod - c2[i] ) % mod;
                    104:                for ( ; i <= dmax; i++ )
                    105:                        cr[i] = c1[i];
                    106:        } else {
                    107:                dmax = DEG(p2); dmin = DEG(p1);
                    108:                for ( i = 0; i <= dmin; i++ )
                    109:                        cr[i] = ( c1[i] + mod - c2[i] ) % mod;
                    110:                for ( ; i <= dmax; i++ )
                    111:                        cr[i] = ( mod - c2[i] ) % mod;
                    112:        }
                    113:        if ( dmax == dmin )
                    114:                degum(pr,dmax);
                    115:        else
                    116:                DEG(pr) = dmax;
                    117: }
                    118:
                    119: void pwrum(mod,p,e,pr)
                    120: int mod,e;
                    121: UM p,pr;
                    122: {
                    123:        UM wt,ws;
                    124:
                    125:        if ( e == 0 ) {
                    126:                DEG(pr) = 0; COEF(pr)[0] = 1;
                    127:        } else if ( DEG(p) < 0 )
                    128:                DEG(pr) = -1;
                    129:        else if ( e == 1 )
                    130:                cpyum(p,pr);
                    131:        else if ( DEG(p) == 0 ) {
                    132:                DEG(pr) = 0; COEF(pr)[0] = pwrm(mod,COEF(p)[0],e);
                    133:        } else {
                    134:                wt = W_UMALLOC(DEG(p)*e); ws = W_UMALLOC(DEG(p)*e);
                    135:                pwrum(mod,p,e/2,wt);
                    136:                if ( !(e%2) )
                    137:                        mulum(mod,wt,wt,pr);
                    138:                else {
                    139:                        mulum(mod,wt,wt,ws); mulum(mod,ws,p,pr);
                    140:                }
                    141:        }
                    142: }
                    143:
                    144: void gcdum(mod,p1,p2,pr)
                    145: register int mod;
                    146: UM p1,p2,pr;
                    147: {
                    148:        register int inv;
                    149:        UM t1,t2,q,tum;
                    150:        int drem;
                    151:
                    152:        if ( DEG(p1) < 0 )
                    153:                cpyum(p2,pr);
                    154:        else if ( DEG(p2) < 0 )
                    155:                cpyum(p1,pr);
                    156:        else {
                    157:                if ( DEG(p1) >= DEG(p2) ) {
                    158:                        t1 = p1; t2 = p2;
                    159:                } else {
                    160:                        t1 = p2; t2 = p1;
                    161:                }
                    162:                q = W_UMALLOC(DEG(t1));
                    163:                while ( ( drem = divum(mod,t1,t2,q) ) >= 0 ) {
                    164:                        tum = t1; t1 = t2; t2 = tum; DEG(t2) = drem;
                    165:                }
                    166:                inv = invm(COEF(t2)[DEG(t2)],mod);
                    167:                mulsum(mod,t2,inv,pr);
                    168:        }
                    169: }
                    170:
                    171: void eucum(mod,f1,f2,a,b)
                    172: register int mod;
                    173: UM f1,f2,a,b;
                    174: {
                    175:        UM g1,g2,a1,a2,a3,wm,q,tum;
                    176:        int d,dr;
                    177:
                    178:        d = DEG(f1) + DEG(f2) + 10;
                    179:        g1 = W_UMALLOC(d); g2 = W_UMALLOC(d); a1 = W_UMALLOC(d);
                    180:        a2 = W_UMALLOC(d); a3 = W_UMALLOC(d); wm = W_UMALLOC(d);
                    181:        q = W_UMALLOC(d);
                    182:        DEG(a1) = 0; COEF(a1)[0] = 1; DEG(a2) = -1;
                    183:        cpyum(f1,g1); cpyum(f2,g2);
                    184:        while ( 1 ) {
                    185:                dr = divum(mod,g1,g2,q); tum = g1; g1 = g2; g2 = tum;
                    186:                if ( ( DEG(g2) = dr ) == -1 )
                    187:                        break;
                    188:                mulum(mod,a2,q,wm); subum(mod,a1,wm,a3); dr = divum(mod,a3,f2,q);
                    189:                tum = a1; a1 = a2; a2 = a3; a3 = tum; DEG(a3) = dr;
                    190:        }
                    191:        if ( COEF(g1)[0] != 1 )
                    192:                mulsum(mod,a2,invm(COEF(g1)[0],mod),a);
                    193:        else
                    194:                cpyum(a2,a);
                    195:        mulum(mod,a,f1,wm);
                    196:        if ( DEG(wm) >= 0 )
                    197:                COEF(wm)[0] = ( COEF(wm)[0] + mod - 1 ) % mod;
                    198:        else {
                    199:                DEG(wm) = 0; COEF(wm)[0] = mod - 1;
                    200:        }
                    201:        divum(mod,wm,f2,q); mulsum(mod,q,mod-1,b);
                    202: }
                    203:
                    204: void sqfrum(index,count,f,nindex,dcr,pl)
                    205: int index,count,*nindex;
                    206: P f;
                    207: struct oDUM **dcr;
                    208: ML *pl;
                    209: {
                    210:        int i,j,m,n,d,dt,mod;
                    211:        UM wf,wdf,ws,wt,wgcd,mf,mgcd;
                    212:        UM *l;
                    213:        struct oDUM *dc;
                    214:        ML tp;
                    215:
                    216:        n = UDEG(f);
                    217:        wf = W_UMALLOC(n);
                    218:        wdf = W_UMALLOC(n);
                    219:        ws = W_UMALLOC(n);
                    220:        wt = W_UMALLOC(n);
                    221:        wgcd = W_UMALLOC(n);
                    222:
                    223:        mf = W_UMALLOC(n);
                    224:        mgcd = W_UMALLOC(n);
                    225:
                    226:        for ( j = 0, d = n; j < count && d; ) {
1.5       noro      227:                m = get_lprime(index++);
1.1       noro      228:                if ( rem(NM((Q)COEF(DC(f))),m) == 0 ) continue;
                    229:
                    230:                ptoum(m,f,wf);
                    231:                diffum(m,wf,wdf);
                    232:                cpyum(wf,wt); cpyum(wdf,ws);
                    233:                gcdum(m,wt,ws,wgcd);
                    234:                dt = DEG(wgcd);
                    235:
                    236:                if ( dt < d ) {
                    237:                        d = dt;
                    238:                        mod = m;
                    239:                        cpyum(wf,mf); cpyum(wgcd,mgcd);
                    240:                }
                    241:                j++;
                    242:        }
                    243:        *nindex = index;
                    244:
                    245:        sqfrummain(mod,mf,mgcd,&dc);
                    246:        *dcr = dc;
                    247:
                    248:        for ( n = 0; dc[n].f; n++ );
                    249:        *pl = tp = MLALLOC(n+1);
                    250:        tp->n = n;
                    251:        tp->mod = mod;
                    252:
                    253:        for ( i = 0, l = (UM *)COEF(tp); dc[i].f; i++ ) {
                    254:                l[i] = UMALLOC(DEG(dc[i].f)*dc[i].n);
                    255:                pwrum(mod,dc[i].f,dc[i].n,l[i]);
                    256:        }
                    257:        l[i] = 0;
                    258: }
                    259:
                    260: void sqfrummain(mod,p,gcd,dcp)
                    261: int mod;
                    262: UM p,gcd;
                    263: struct oDUM **dcp;
                    264: {
                    265:        int i,j,n;
                    266:        UM wp,wdp,wc,wd,ws,wt,wq;
                    267:        struct oDUM *dc;
                    268:        UM *f;
                    269:
                    270:        i = DEG(p);
                    271:
                    272:        wp = W_UMALLOC(i);
                    273:        wdp = W_UMALLOC(i);
                    274:        wt = W_UMALLOC(i);
                    275:        ws = W_UMALLOC(i);
                    276:        wc = W_UMALLOC(i);
                    277:        wd = W_UMALLOC(i);
                    278:        wq =  W_UMALLOC(i);
                    279:
                    280:        f = (UM *) ALLOCA((i+2)*sizeof(UM));
                    281:
                    282:        cpyum(p,wp);
                    283:        diffum(mod,wp,wdp);
                    284:
                    285:        cpyum(wp,wt);
                    286:        divum(mod,wt,gcd,wc);
                    287:
                    288:        cpyum(wdp,wt);
                    289:        divum(mod,wt,gcd,ws);
                    290:
                    291:        diffum(mod,wc,wt);
                    292:        subum(mod,ws,wt,wd);
                    293:
                    294:        for ( i = 1; DEG(wd) >= 0; i++ ) {
                    295:                cpyum(wc,ws); cpyum(wd,wt);
                    296:                gcdum(mod,ws,wt,wq);
                    297:                if ( DEG(wq) > 0 ) {
                    298:                        f[i] = UMALLOC(DEG(wq));
                    299:                        cpyum(wq,f[i]);
                    300:
                    301:                        cpyum(wc,ws);
                    302:                        divum(mod,ws,f[i],wc);
                    303:                        divum(mod,wd,f[i],ws);
                    304:                        diffum(mod,wc,wt);
                    305:                        subum(mod,ws,wt,wd);
                    306:                } else {
                    307:                        f[i] = 0;
                    308:                        cpyum(wd,ws);
                    309:                        diffum(mod,wc,wt);
                    310:                        subum(mod,ws,wt,wd);
                    311:                }
                    312:
                    313:        }
                    314:
                    315:        if ( DEG(wc) > 0 ) {
                    316:                DEG(wq) = 0;
                    317:                COEF(wq)[0] = invm(COEF(wc)[DEG(wc)],mod);
                    318:                f[i] = UMALLOC(DEG(wc));
                    319:                mulum(mod,wc,wq,f[i]);
                    320:                f[i+1] = 0;
                    321:                n = i + 1;
                    322:        } else {
                    323:                f[i] = 0;
                    324:                n = i;
                    325:        }
                    326:
                    327:        for ( i = 1, j = 0; i < n; i++ )
                    328:                if ( f[i] ) j++;
                    329:
                    330:        *dcp = dc = (struct oDUM *) CALLOC(j+1,sizeof(struct oDUM));
                    331:
                    332:        for ( i = 1, j = 0; i < n; i++ )
                    333:                if ( f[i] ) {
                    334:                        dc[j].n = i;
                    335:                        dc[j].f = f[i];
                    336:                        j++;
                    337:                }
                    338:        dc[j].n = 0;
                    339:        dc[j].f = 0;
                    340: }
                    341:
                    342: void cpyum(p1,p2)
                    343: UM p1,p2;
                    344: {
                    345:        register int *c1,*c2,i;
                    346:
                    347:        for ( i = DEG(p2) = DEG(p1), c1 = COEF(p1), c2 = COEF(p2);
                    348:                  i >= 0; i-- )
                    349:                c2[i] = c1[i];
                    350: }
                    351:
1.7     ! noro      352: void clearum(p,n)
        !           353: UM p;
        !           354: int n;
        !           355: {
        !           356:        DEG(p) = -1;
        !           357:        bzero(COEF(p),(n+1)*sizeof(int));
        !           358: }
        !           359:
1.1       noro      360: void degum(f,n)
                    361: UM f;
                    362: int n;
                    363: {
                    364:        register int i,*c;
                    365:
                    366:        for ( i = n, c = COEF(f); ( i >= 0 ) && ( c[i] == 0 ); i-- );
                    367:        DEG(f) = i;
                    368: }
                    369:
                    370: int deg(v,p)
                    371: V v;
                    372: P p;
                    373: {
                    374:        if ( !p )
                    375:                return ( -1 );
                    376:        else if ( NUM(p) )
                    377:                return ( 0 );
                    378:        else if ( VR(p) != v )
                    379:                return ( 0 );
                    380:        else if ( PL(NM(DEG(DC(p)))) > 1 ) {
                    381:                error("degree too large");
                    382:                return ( -1 );
                    383:        } else
                    384:                return ( UDEG(p) );
                    385: }
                    386:
                    387: LUM LUMALLOC(n,bound)
                    388: int n,bound;
                    389: {
                    390:        LUM p;
                    391:        int **c;
                    392:        int i;
                    393:
                    394:        p = (LUM)MALLOC(TRUESIZE(oLUM,n,int *));
                    395:        DEG(p) = n;
                    396:        for ( i = 0, c = (int **)COEF(p); i <= n; i++ ) {
                    397:                c[i] = (int *)MALLOC_ATOMIC((bound+1)*sizeof(int));
                    398:                bzero((char *)c[i],(bound+1)*sizeof(int));
1.6       noro      399:        }
                    400:        return p;
                    401: }
                    402:
1.7     ! noro      403: /* n = deg in x, bound = deg in y, c[i] <-> the coef of y^i (poly in x) */
        !           404:
1.6       noro      405: BM BMALLOC(n,bound)
                    406: int n,bound;
                    407: {
                    408:        BM p;
                    409:        UM *c;
                    410:        int i;
                    411:
1.7     ! noro      412:        p = (BM)MALLOC(TRUESIZE(oBM,bound,UM));
        !           413:        DEG(p) = bound;
        !           414:        for ( i = 0, c = (UM *)COEF(p); i < bound; i++ ) {
        !           415:                c[i] = UMALLOC(n);
1.6       noro      416:                DEG(c[i]) = -1;
1.7     ! noro      417:                bzero((char *)COEF(c[i]),(n+1)*sizeof(int));
1.1       noro      418:        }
                    419:        return p;
                    420: }
                    421:
                    422: void mullum(mod,n,f1,f2,fr)
                    423: int mod,n;
                    424: LUM f1,f2,fr;
                    425: {
                    426:        int max;
                    427:        register int i,j,**p1,**p2,*px;
                    428:        int *w,*w1,*w2;
                    429:
                    430:        p1 = (int **)COEF(f1); p2 = (int **)COEF(f2);
                    431:        w = W_ALLOC(2*(n+1)); w1 = W_ALLOC(DEG(f1)); w2 = W_ALLOC(DEG(f2));
                    432:        for ( i = DEG(f1); i >= 0; i-- ) {
                    433:                for ( j = n - 1, px = p1[i]; ( j >= 0 ) && ( px[j] == 0 ); j-- );
                    434:                w1[i] = ( j == -1 ? 0 : 1 );
                    435:        }
                    436:        for ( i = DEG(f2); i >= 0; i-- ) {
                    437:                for ( j = n - 1, px = p2[i]; ( j >= 0 ) && ( px[j] == 0 ); j-- );
                    438:                w2[i] = ( j == -1 ? 0 : 1 );
                    439:        }
                    440:        for ( j = DEG(fr) = DEG(f1) + DEG(f2); j >= 0; j-- ) {
                    441:                for ( i = n - 1, px = COEF(fr)[j]; i >= 0; i-- )
                    442:                        px[i] = 0;
                    443:                for ( max = MIN(DEG(f1),j), i = MAX(0,j-DEG(f2)); i <= max; i++ )
                    444:                        if ( w1[i] != 0 && w2[j - i] != 0 ) {
                    445:                                mulpadic(mod,n,p1[i],p2[j - i],w); addpadic(mod,n,w,px);
                    446:                        }
                    447:        }
                    448: }
                    449:
                    450: void cpylum(bound,p,r)
                    451: int bound;
                    452: LUM p,r;
                    453: {
                    454:        register int i,j;
                    455:        register int **pp,**ppr;
                    456:
                    457:        DEG(r) = DEG(p);
                    458:        for ( i = 0, pp = COEF(p), ppr = COEF(r);
                    459:                i <= DEG(p); i++ )
                    460:                for ( j = 0; j < bound; j++ )
                    461:                        ppr[i][j] = pp[i][j];
1.7     ! noro      462: }
        !           463:
        !           464: int isequalum(f1,f2)
        !           465: UM f1,f2;
        !           466: {
        !           467:        int i;
        !           468:
        !           469:        if ( DEG(f1) < 0 )
        !           470:                if ( DEG(f2) < 0 )
        !           471:                        return 1;
        !           472:                else
        !           473:                        return 0;
        !           474:        else if ( DEG(f2) < 0 )
        !           475:                return 0;
        !           476:        else {
        !           477:                if ( DEG(f1) != DEG(f2) )
        !           478:                        return 0;
        !           479:                for ( i = 0; i <= DEG(f1); i++ )
        !           480:                        if ( COEF(f1)[i] != COEF(f2)[i] )
        !           481:                                break;
        !           482:                if ( i < DEG(f1) )
        !           483:                        return 0;
        !           484:                else
        !           485:                        return 1;
        !           486:        }
1.1       noro      487: }
                    488:
                    489: void pwrlum(mod,bound,p,n,r)
                    490: int mod,bound,n;
                    491: LUM p,r;
                    492: {
                    493:        LUM t,s;
                    494:
                    495:        if ( n == 0 ) {
                    496:                DEG(r) = 0;
                    497:                COEF(r)[0][0] = 1;
                    498:        } else if ( DEG(p) < 0 )
                    499:                DEG(r) = -1;
                    500:        else if ( n == 1 )
                    501:                cpylum(bound,p,r);
                    502:        else {
                    503:                W_LUMALLOC(DEG(p)*n,bound,t);
                    504:                pwrlum(mod,bound,p,n/2,t);
                    505:                if ( !(n%2) )
                    506:                        mullum(mod,bound,t,t,r);
                    507:                else {
                    508:                        W_LUMALLOC(DEG(p)*n,bound,s);
                    509:                        mullum(mod,bound,t,t,s);
                    510:                        mullum(mod,bound,s,p,r);
                    511:                }
                    512:        }
                    513: }
                    514:
                    515: int **almat(n,m)
                    516: int n,m;
                    517: {
                    518:        int **mat,i;
                    519:
                    520:        mat = (int **)MALLOC(n*sizeof(int *));
                    521:        for ( i = 0; i < n; i++ )
                    522:                mat[i] = (int *)CALLOC(m,sizeof(int));
                    523:        return mat;
                    524: }
                    525:
                    526: void mini(mod,f,fr)
                    527: register int mod;
                    528: UM f,fr;
                    529: {
                    530:        register int i,j,**c,*ptr;
                    531:        int d,dr,dm,n;
                    532:        UM w,q;
                    533:
                    534:        n = DEG(f); c = (int **)ALLOCA(n*sizeof(int *));
                    535:        for ( i = 0; i < n; i++ ) {
                    536:                c[i] = (int *)ALLOCA(n*sizeof(int));
                    537:                bzero((char *)c[i],(int)(n*sizeof(int)));
                    538:        }
                    539:        w = W_UMALLOC( mod + n + 10 ); q = W_UMALLOC( mod + n + 10 );
                    540:        for ( i = 1; ( d = ( mod * i ) ) < n; i++ ) c[d][i - 1] = 1;
                    541:        DEG(w) = d;
                    542:        for ( j = 0; j < d; j++ )
                    543:                COEF(w)[j] = 0;
                    544:        COEF(w)[d] = 1;
                    545:        for ( ; (i < n) && ((dr = divum(mod,w,f,q)) >= 0); i++ ) {
                    546:                for ( j = dr; j >= 0; j-- )
                    547:                        COEF(w)[j + mod] = c[j][i - 1] = COEF(w)[j];
                    548:                for ( j = mod - 1; j >= 0; j-- )
                    549:                        COEF(w)[j] = 0;
                    550:                DEG(w) = dr + mod;
                    551:        }
                    552:        for ( i = 1; i < n; i++ )
                    553:                c[i][i - 1] = ( c[i][i - 1] + mod - 1 ) % mod;
                    554:        if ( ( dm = minimain(mod,n,n - 1,c) ) != -1 )
                    555:                for ( i = 0, ptr = COEF(fr), ptr[0] = 0; i <= dm; i++ )
                    556:                        ptr[i + 1] = c[0][i];
                    557:        else
                    558:                COEF(fr)[0] = 1;
                    559:        DEG(fr) = dm + 1;
                    560: }
                    561:
                    562: int minimain(mod,n,m,c)
                    563: register int mod;
                    564: int n,m;
                    565: register int **c;
                    566: {
                    567:        register int *ptr,*ci,*p;
                    568:        register int i,l,a,j,b,inv;
                    569:        int *tmp;
                    570:
                    571:        for ( j = 0; j < m; j++ ) {
                    572:                for ( i = j; (n > i) && !c[i][j]; i++ );
                    573:                if ( i == n ) {
                    574:                        for ( i = j, j = j - 1; j >= 0; j-- )
                    575:                                c[0][j] = c[j][i];
                    576:                        c[0][i] = mod - 1;
                    577:                        return( i );
                    578:                }
                    579:                if ( i != j ) {
                    580:                        tmp = c[i]; c[i] = c[j]; c[j] = tmp;
                    581:                }
                    582:                ptr = c[j]; inv = invm((ptr[j] + mod) % mod,mod);
                    583:                for ( l = j, p = ptr+l; l < m; l++ ) {
                    584:                        a = (*p * inv) % mod;
                    585:                        *p++ = (a<0?a+mod:a);
                    586:                }
                    587:                for ( i = 0; i < n; i++ )
                    588:                        if ( (a = -c[i][j]) && (i != j) ) {
                    589:                                for ( l = j+1, p = ptr+l, ci = c[i]+l; l < m; l++ ) {
                    590:                                        b = (*p++ * a + *ci) % mod;
                    591:                                        *ci++ = (b<0?b+mod:b);
                    592:                                }
                    593:                                c[i][j] = 0;
                    594:                        }
                    595:        }
                    596:        return (-1);
                    597: }
                    598:
1.4       noro      599: #if defined(__GNUC__)
1.1       noro      600: const
                    601: #endif
                    602: int sprime[] = {
                    603:        2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,
                    604:        53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,
                    605:        127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,
                    606:        199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,
                    607:        283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,
                    608:        383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,
                    609:        467,479,487,491,499,503,509,521,523,541,547,557,563,569,571,
                    610:        577,587,593,599,601,607,613,617,619,631,641,643,647,653,659,
                    611:        661,673,677,683,691,701,709,719,727,733,739,743,751,757,761,
                    612:        769,773,787,797,809,811,821,823,827,829,839,853,857,859,863,
                    613:        877,881,883,887,907,911,919,929,937,941,947,953,967,971,977,
                    614:        983,991,997,1009,1013,1019,1021,1031,1033,1039,1049,1051,1061,1063,1069,
                    615:        1087,1091,1093,1097,1103,1109,1117,1123,1129,1151,1153,1163,1171,1181,1187,
                    616:        1193,1201,1213,1217,1223,1229,1231,1237,1249,1259,1277,1279,1283,1289,1291,
                    617:        1297,1301,1303,1307,1319,1321,1327,1361,1367,1373,1381,1399,1409,1423,1427,
                    618:        1429,1433,1439,1447,1451,1453,1459,1471,1481,1483,1487,1489,1493,1499,1511,
                    619:        1523,1531,1543,1549,1553,1559,1567,1571,1579,1583,1597,1601,1607,1609,1613,
                    620:        1619,1621,1627,1637,1657,1663,1667,1669,1693,1697,1699,1709,1721,1723,1733,
                    621:        1741,1747,1753,1759,1777,1783,1787,1789,1801,1811,1823,1831,1847,1861,1867,
                    622:        1871,1873,1877,1879,1889,1901,1907,1913,1931,1933,1949,1951,1973,1979,1987,
                    623:        1993,1997,1999,2003,2011,2017,2027,2029,2039,2053,2063,2069,2081,2083,2087,
                    624:        2089,2099,2111,2113,2129,2131,2137,2141,2143,2153,2161,2179,2203,2207,2213,
                    625:        2221,2237,2239,2243,2251,2267,2269,2273,2281,2287,2293,2297,2309,2311,2333,
                    626:        2339,2341,2347,2351,2357,2371,2377,2381,2383,2389,2393,2399,2411,2417,2423,
                    627:        2437,2441,2447,2459,2467,2473,2477,2503,2521,2531,2539,2543,2549,2551,2557,
                    628:        2579,2591,2593,2609,2617,2621,2633,2647,2657,2659,2663,2671,2677,2683,2687,
                    629:        2689,2693,2699,2707,2711,2713,2719,2729,2731,2741,2749,2753,2767,2777,2789,
                    630:        2791,2797,2801,2803,2819,2833,2837,2843,2851,2857,2861,2879,2887,2897,2903,
                    631:        2909,2917,2927,2939,2953,2957,2963,2969,2971,2999,3001,3011,3019,3023,3037,
                    632:        3041,3049,3061,3067,3079,3083,3089,3109,3119,3121,3137,3163,3167,3169,3181,
                    633:        3187,3191,3203,3209,3217,3221,3229,3251,3253,3257,3259,3271,3299,3301,3307,
                    634:        3313,3319,3323,3329,3331,3343,3347,3359,3361,3371,3373,3389,3391,3407,3413,
                    635:        3433,3449,3457,3461,3463,3467,3469,3491,3499,3511,3517,3527,3529,3533,3539,
                    636:        3541,3547,3557,3559,3571,3581,3583,3593,3607,3613,3617,3623,3631,3637,3643,
                    637:        3659,3671,3673,3677,3691,3697,3701,3709,3719,3727,3733,3739,3761,3767,3769,
                    638:        3779,3793,3797,3803,3821,3823,3833,3847,3851,3853,3863,3877,3881,3889,3907,
                    639:        3911,3917,3919,3923,3929,3931,3943,3947,3967,3989,4001,4003,4007,4013,4019,
                    640:        4021,4027,4049,4051,4057,4073,4079,4091,4093,4099,4111,4127,4129,4133,4139,
                    641:        4153,4157,4159,4177,4201,4211,4217,4219,4229,4231,4241,4243,4253,4259,4261,
                    642:        4271,4273,4283,4289,4297,4327,4337,4339,4349,4357,4363,4373,4391,4397,4409,
                    643:        4421,4423,4441,4447,4451,4457,4463,4481,4483,4493,4507,4513,4517,4519,4523,
                    644:        4547,4549,4561,4567,4583,4591,4597,4603,4621,4637,4639,4643,4649,4651,4657,
                    645:        4663,4673,4679,4691,4703,4721,4723,4729,4733,4751,4759,4783,4787,4789,4793,
                    646:        4799,4801,4813,4817,4831,4861,4871,4877,4889,4903,4909,4919,4931,4933,4937,
                    647:        4943,4951,4957,4967,4969,4973,4987,4993,4999,5003,5009,5011,5021,5023,5039,
                    648:        5051,5059,5077,5081,5087,5099,5101,5107,5113,5119,5147,5153,5167,5171,5179,
                    649:        5189,5197,5209,5227,5231,5233,5237,5261,5273,5279,5281,5297,5303,5309,5323,
                    650:        5333,5347,5351,5381,5387,5393,5399,5407,5413,5417,5419,5431,5437,5441,5443,
                    651:        5449,5471,5477,5479,5483,5501,5503,5507,5519,5521,5527,5531,5557,5563,5569,
                    652:        5573,5581,5591,5623,5639,5641,5647,5651,5653,5657,5659,5669,5683,5689,5693,
                    653:        5701,5711,5717,5737,5741,5743,5749,5779,5783,5791,5801,5807,5813,5821,5827,
                    654:        5839,5843,5849,5851,5857,5861,5867,5869,5879,5881,5897,5903,5923,5927,5939,
                    655:        5953,5981,5987,6007,6011,6029,6037,6043,6047,6053,6067,6073,6079,6089,6091,
                    656:        6101,6113,6121,6131,6133,6143,6151,6163,6173,6197,6199,6203,6211,6217,6221,
                    657:        6229,6247,6257,6263,6269,6271,6277,6287,6299,6301,6311,6317,6323,6329,6337,
                    658:        6343,6353,6359,6361,6367,6373,6379,6389,6397,6421,6427,6449,6451,6469,6473,
                    659:        6481,6491,6521,6529,6547,6551,6553,6563,6569,6571,6577,6581,6599,6607,6619,
                    660:        6637,6653,6659,6661,6673,6679,6689,6691,6701,6703,6709,6719,6733,6737,6761,
                    661:        6763,6779,6781,6791,6793,6803,6823,6827,6829,6833,6841,6857,6863,6869,6871,
                    662:        6883,6899,6907,6911,6917,6947,6949,6959,6961,6967,6971,6977,6983,6991,6997,
                    663:        7001,7013,7019,7027,7039,7043,7057,7069,7079,7103,7109,7121,7127,7129,7151,
                    664:        7159,7177,7187,7193,7207,7211,7213,7219,7229,7237,7243,7247,7253,7283,7297,
                    665:        7307,7309,7321,7331,7333,7349,7351,7369,7393,7411,7417,7433,7451,7457,7459,
                    666:        7477,7481,7487,7489,7499,7507,7517,7523,7529,7537,7541,7547,7549,7559,7561,
                    667:        7573,7577,7583,7589,7591,7603,7607,7621,7639,7643,7649,7669,7673,7681,7687,
                    668:        7691,7699,7703,7717,7723,7727,7741,7753,7757,7759,7789,7793,7817,7823,7829,
                    669:        7841,7853,7867,7873,7877,7879,7883,7901,7907,7919,7927,7933,7937,7949,7951,
                    670:        7963,7993,8009,8011,8017,8039,8053,8059,8069,8081,8087,8089,8093,8101,8111,
                    671:        8117,8123,8147,8161,8167,8171,8179,8191,8209,8219,8221,8231,8233,8237,8243,
                    672:        8263,8269,8273,8287,8291,8293,8297,8311,8317,8329,8353,8363,8369,8377,8387,
                    673:        8389,8419,8423,8429,8431,8443,8447,8461,8467,8501,8513,8521,8527,8537,8539,
                    674:        8543,8563,8573,8581,8597,8599,8609,8623,8627,8629,8641,8647,8663,8669,8677,
                    675:        8681,8689,8693,8699,8707,8713,8719,8731,8737,8741,8747,8753,8761,8779,8783,
                    676:        8803,8807,8819,8821,8831,8837,8839,8849,8861,8863,8867,8887,8893,8923,8929,
                    677:        8933,8941,8951,8963,8969,8971,8999,9001,9007,9011,9013,9029,9041,9043,9049,
                    678:        9059,9067,9091,9103,9109,9127,9133,9137,9151,9157,9161,9173,9181,9187,9199,
                    679:        9203,9209,9221,9227,9239,9241,9257,9277,9281,9283,9293,9311,9319,9323,9337,
                    680:        9341,9343,9349,9371,9377,9391,9397,9403,9413,9419,9421,9431,9433,9437,9439,
                    681:        9461,9463,9467,9473,9479,9491,9497,9511,9521,9533,9539,9547,9551,9587,9601,
                    682:        9613,9619,9623,9629,9631,9643,9649,9661,9677,9679,9689,9697,9719,9721,9733,
                    683:        9739,9743,9749,9767,9769,9781,9787,9791,9803,9811,9817,9829,9833,9839,9851,
                    684:        9857,9859,9871,9883,9887,9901,9907,9923,9929,9931,9941,9949,9967,9973,10007,
                    685:        10009,10037,10039,10061,10067,10069,10079,10091,10093,10099,
                    686:        10103,10111,10133,10139,10141,10151,10159,10163,10169,10177,
                    687:        10181,10193,10211,10223,10243,10247,10253,10259,10267,10271,
                    688:        10273,10289,10301,10303,10313,10321,10331,10333,10337,10343,
                    689:        10357,10369,10391,10399,10427,10429,10433,10453,10457,10459,
                    690:        10463,10477,10487,10499,10501,10513,10529,10531,10559,10567,
                    691:        10589,10597,10601,10607,10613,10627,10631,10639,10651,10657,
                    692:        10663,10667,10687,10691,10709,10711,10723,10729,10733,10739,
                    693:        10753,10771,10781,10789,10799,10831,10837,10847,10853,10859,
                    694:        10861,10867,10883,10889,10891,10903,10909,10937,10939,10949,
                    695:        10957,10973,10979,10987,10993,11003,11027,11047,11057,11059,
                    696:        11069,11071,11083,11087,11093,11113,11117,11119,11131,11149,
                    697:        11159,11161,11171,11173,11177,11197,11213,11239,11243,11251,
                    698:        11257,11261,11273,11279,11287,11299,11311,11317,11321,11329,
                    699:        11351,11353,11369,11383,11393,11399,11411,11423,11437,11443,
                    700:        11447,11467,11471,11483,11489,11491,11497,11503,11519,11527,
                    701:        11549,11551,11579,11587,11593,11597,11617,11621,11633,11657,
                    702:        11677,11681,11689,11699,11701,11717,11719,11731,11743,11777,
                    703:        11779,11783,11789,11801,11807,11813,11821,11827,11831,11833,
                    704:        11839,11863,11867,11887,11897,11903,11909,11923,11927,11933,
                    705:        11939,11941,11953,11959,11969,11971,11981,11987,12007,12011,
                    706:        12037,12041,12043,12049,12071,12073,12097,12101,12107,12109,
                    707:        12113,12119,12143,12149,12157,12161,12163,12197,12203,12211,
                    708:        12227,12239,12241,12251,12253,12263,12269,12277,12281,12289,
                    709:        12301,12323,12329,12343,12347,12373,12377,12379,12391,12401,
                    710:        12409,12413,12421,12433,12437,12451,12457,12473,12479,12487,
                    711:        12491,12497,12503,12511,12517,12527,12539,12541,12547,12553,
                    712:        12569,12577,12583,12589,12601,12611,12613,12619,12637,12641,
                    713:        12647,12653,12659,12671,12689,12697,12703,12713,12721,12739,
                    714:        12743,12757,12763,12781,12791,12799,12809,12821,12823,12829,
                    715:        12841,12853,12889,12893,12899,12907,12911,12917,12919,12923,
                    716:        12941,12953,12959,12967,12973,12979,12983,13001,13003,13007,
                    717:        13009,13033,13037,13043,13049,13063,13093,13099,13103,13109,
                    718:        13121,13127,13147,13151,13159,13163,13171,13177,13183,13187,
                    719:        13217,13219,13229,13241,13249,13259,13267,13291,13297,13309,
                    720:        13313,13327,13331,13337,13339,13367,13381,13397,13399,13411,
                    721:        13417,13421,13441,13451,13457,13463,13469,13477,13487,13499,
                    722:        13513,13523,13537,13553,13567,13577,13591,13597,13613,13619,
                    723:        13627,13633,13649,13669,13679,13681,13687,13691,13693,13697,
                    724:        13709,13711,13721,13723,13729,13751,13757,13759,13763,13781,
                    725:        13789,13799,13807,13829,13831,13841,13859,13873,13877,13879,
                    726:        13883,13901,13903,13907,13913,13921,13931,13933,13963,13967,
                    727:        13997,13999,14009,14011,14029,14033,14051,14057,14071,14081,
                    728:        14083,14087,14107,14143,14149,14153,14159,14173,14177,14197,
                    729:        14207,14221,14243,14249,14251,14281,14293,14303,14321,14323,
                    730:        14327,14341,14347,14369,14387,14389,14401,14407,14411,14419,
                    731:        14423,14431,14437,14447,14449,14461,14479,14489,14503,14519,
                    732:        14533,14537,14543,14549,14551,14557,14561,14563,14591,14593,
                    733:        14621,14627,14629,14633,14639,14653,14657,14669,14683,14699,
                    734:        14713,14717,14723,14731,14737,14741,14747,14753,14759,14767,
                    735:        14771,14779,14783,14797,14813,14821,14827,14831,14843,14851,
                    736:        14867,14869,14879,14887,14891,14897,14923,14929,14939,14947,
                    737:        14951,14957,14969,14983,15013,15017,15031,15053,15061,15073,
                    738:        15077,15083,15091,15101,15107,15121,15131,15137,15139,15149,
                    739:        15161,15173,15187,15193,15199,15217,15227,15233,15241,15259,
                    740:        15263,15269,15271,15277,15287,15289,15299,15307,15313,15319,
                    741:        15329,15331,15349,15359,15361,15373,15377,15383,15391,15401,
                    742:        15413,15427,15439,15443,15451,15461,15467,15473,15493,15497,
                    743:        15511,15527,15541,15551,15559,15569,15581,15583,15601,15607,
                    744:        15619,15629,15641,15643,15647,15649,15661,15667,15671,15679,
                    745:        15683,15727,15731,15733,15737,15739,15749,15761,15767,15773,
                    746:        15787,15791,15797,15803,15809,15817,15823,15859,15877,15881,
                    747:        15887,15889,15901,15907,15913,15919,15923,15937,15959,15971,
                    748:        15973,15991,16001,16007,16033,16057,16061,16063,16067,16069,
                    749:        16073,16087,16091,16097,16103,16111,16127,16139,16141,16183,
                    750:        16187,16189,16193,16217,16223,16229,16231,16249,16253,16267,
                    751:        16273,16301,16319,16333,16339,16349,16361,16363,16369,16381,
                    752:        0
                    753: };

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>