Annotation of OpenXM_contrib2/asir2000/engine/bf.c, Revision 1.6
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: *
1.6 ! noro 48: * $OpenXM: OpenXM_contrib2/asir2000/engine/bf.c,v 1.5 2009/03/27 14:42:29 ohara Exp $
1.2 noro 49: */
1.1 noro 50: #include "ca.h"
1.4 ohara 51: #if defined(PARI)
1.1 noro 52: #include "base.h"
53: #include <math.h>
54: #include "genpari.h"
55:
56: void ritopa(Obj,GEN *);
57: void patori(GEN,Obj *);
58:
59: void addbf(a,b,c)
60: Num a,b;
61: Num *c;
62: {
63: GEN pa,pb,z;
64: long ltop,lbot;
65:
66: if ( !a )
67: *c = b;
68: else if ( !b )
69: *c = a;
70: else if ( (NID(a) <= N_A) && (NID(b) <= N_A ) )
71: (*addnumt[MIN(NID(a),NID(b))])(a,b,c);
72: else {
73: ltop = avma; ritopa((Obj)a,&pa);
74: ritopa((Obj)b,&pb); lbot = avma;
75: z = gerepile(ltop,lbot,gadd(pa,pb));
76: patori(z,(Obj *)c); cgiv(z);
77: }
78: }
79:
80: void subbf(a,b,c)
81: Num a,b;
82: Num *c;
83: {
84: GEN pa,pb,z;
85: long ltop,lbot;
86:
87: if ( !a )
88: (*chsgnnumt[NID(b)])(b,c);
89: else if ( !b )
90: *c = a;
91: else if ( (NID(a) <= N_A) && (NID(b) <= N_A ) )
92: (*subnumt[MIN(NID(a),NID(b))])(a,b,c);
93: else {
94: ltop = avma; ritopa((Obj)a,&pa); ritopa((Obj)b,&pb); lbot = avma;
95: z = gerepile(ltop,lbot,gsub(pa,pb));
96: patori(z,(Obj *)c); cgiv(z);
97: }
98: }
99:
100: void mulbf(a,b,c)
101: Num a,b;
102: Num *c;
103: {
104: GEN pa,pb,z;
105: long ltop,lbot;
106:
107: if ( !a || !b )
108: *c = 0;
109: else if ( (NID(a) <= N_A) && (NID(b) <= N_A ) )
110: (*mulnumt[MIN(NID(a),NID(b))])(a,b,c);
111: else {
112: ltop = avma; ritopa((Obj)a,&pa); ritopa((Obj)b,&pb); lbot = avma;
113: z = gerepile(ltop,lbot,gmul(pa,pb));
114: patori(z,(Obj *)c); cgiv(z);
115: }
116: }
117:
118: void divbf(a,b,c)
119: Num a,b;
120: Num *c;
121: {
122: GEN pa,pb,z;
123: long ltop,lbot;
124:
125: if ( !b )
126: error("divbf : division by 0");
127: else if ( !a )
128: *c = 0;
129: else if ( (NID(a) <= N_A) && (NID(b) <= N_A ) )
130: (*divnumt[MIN(NID(a),NID(b))])(a,b,c);
131: else {
132: ltop = avma; ritopa((Obj)a,&pa); ritopa((Obj)b,&pb); lbot = avma;
133: z = gerepile(ltop,lbot,gdiv(pa,pb));
134: patori(z,(Obj *)c); cgiv(z);
135: }
136: }
137:
138: void pwrbf(a,e,c)
139: Num a,e;
140: Num *c;
141: {
142: if ( !e )
143: *c = (Num)ONE;
144: else if ( !a )
145: *c = 0;
146: else {
1.6 ! noro 147: gpui_ri((Obj)a,(Obj)e,(Obj *)c);
1.1 noro 148: }
149: }
150:
151: void chsgnbf(a,c)
152: Num a,*c;
153: {
154: BF t;
155: GEN z;
156: int s;
157:
158: if ( !a )
159: *c = 0;
160: else if ( NID(a) <= N_A )
161: (*chsgnnumt[NID(a)])(a,c);
162: else {
163: z = (GEN)((BF)a)->body; s = lg(z); NEWBF(t,s);
164: bcopy((char *)a,(char *)t,sizeof(struct oBF)+((s-1)*sizeof(long)));
165: z = (GEN)((BF)t)->body; setsigne(z,-signe(z));
166: *c = (Num)t;
167: }
168: }
169:
170: int cmpbf(a,b)
171: Num a,b;
172: {
173: GEN pa,pb;
174: int s;
175:
176: if ( !a ) {
177: if ( !b || (NID(b)<=N_A) )
178: return (*cmpnumt[NID(b)])(a,b);
179: else
180: return -signe(((BF)b)->body);
181: } else if ( !b ) {
182: if ( !a || (NID(a)<=N_A) )
183: return (*cmpnumt[NID(a)])(a,b);
184: else
185: return signe(((BF)a)->body);
186: } else {
187: ritopa((Obj)a,&pa); ritopa((Obj)b,&pb);
188: s = gcmp(pa,pb); cgiv(pb); cgiv(pa);
189: return s;
190: }
191: }
192: #endif /* PARI */
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