Annotation of OpenXM_contrib2/asir2000/parse/arith.c, Revision 1.3
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'
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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: *
1.3 ! noro 48: * $OpenXM: OpenXM_contrib2/asir2000/parse/arith.c,v 1.2 2000/08/21 08:31:45 noro Exp $
1.2 noro 49: */
1.1 noro 50: #include "ca.h"
51: #include "parse.h"
52:
53: struct oAFUNC {
54: void (*add)();
55: void (*sub)();
56: void (*mul)();
57: void (*div)();
58: void (*pwr)();
59: void (*chsgn)();
60: int (*comp)();
61: };
62:
63: struct oARF arf[6];
64: ARF addfs, subfs, mulfs, divfs, remfs, pwrfs;
65:
66: void divsdc();
67:
68: struct oAFUNC afunc[] = {
69: /* ??? */ {0,0,0,0,0,0,0},
70: /* O_N */ {addnum,subnum,mulnum,divnum,pwrnum,chsgnnum,compnum},
71: /* O_P */ {addp,subp,mulp,divr,pwrp,chsgnp,compp},
72: /* O_R */ {addr,subr,mulr,divr,pwrr,chsgnr,compr},
73: /* O_LIST */ {notdef,notdef,notdef,notdef,notdef,notdef,complist},
74: /* O_VECT */ {addvect,subvect,mulvect,divvect,notdef,chsgnvect,compvect},
75: /* O_MAT */ {addmat,submat,mulmat,divmat,pwrmat,chsgnmat,compmat},
76: /* O_STR */ {addstr,notdef,notdef,notdef,notdef,notdef,compstr},
77: /* O_COMP */ {addcomp,subcomp,mulcomp,divcomp,pwrcomp,chsgncomp,compcomp},
78: /* O_DP */ {addd,subd,muld,divsdc,notdef,chsgnd,compd},
79: /* O_UI */ {notdef,notdef,notdef,notdef,notdef,notdef,compui},
80: /* O_GF2MAT */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
81: /* O_ERR */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
82: /* O_GFMMAT */ {notdef,notdef,notdef,notdef,notdef,notdef,(int(*)())notdef},
83: };
84:
85: void arf_init() {
86: addfs = &arf[0]; addfs->name = "+"; addfs->fp = arf_add;
87: subfs = &arf[1]; subfs->name = "-"; subfs->fp = arf_sub;
88: mulfs = &arf[2]; mulfs->name = "*"; mulfs->fp = arf_mul;
89: divfs = &arf[3]; divfs->name = "/"; divfs->fp = arf_div;
90: remfs = &arf[4]; remfs->name = "%"; remfs->fp = arf_remain;
91: pwrfs = &arf[5]; pwrfs->name = "^"; pwrfs->fp = arf_pwr;
92: }
93:
94: void arf_add(vl,a,b,r)
95: VL vl;
96: Obj a,b,*r;
97: {
98: int mid;
99:
100: if ( !a )
101: *r = b;
102: else if ( !b )
103: *r = a;
104: else if ( OID(a) == OID(b) )
105: (*afunc[OID(a)].add)(vl,a,b,r);
106: else if ( (mid = MAX(OID(a),OID(b))) <= O_R )
107: (*afunc[mid].add)(vl,a,b,r);
108: else
109: notdef(vl,a,b,r);
110: }
111:
112: void arf_sub(vl,a,b,r)
113: VL vl;
114: Obj a,b,*r;
115: {
116: int mid;
117:
118: if ( !a )
119: if ( !b )
120: *r = 0;
121: else
122: (*afunc[OID(b)].chsgn)(b,r);
123: else if ( !b )
124: *r = a;
125: else if ( OID(a) == OID(b) )
126: (*afunc[OID(a)].sub)(vl,a,b,r);
127: else if ( (mid = MAX(OID(a),OID(b))) <= O_R )
128: (*afunc[mid].sub)(vl,a,b,r);
129: else
130: notdef(vl,a,b,r);
131: }
132:
133: void arf_mul(vl,a,b,r)
134: VL vl;
135: Obj a,b,*r;
136: {
137: int mid;
138:
139: if ( !a || !b )
140: *r = 0;
141: else if ( OID(a) == OID(b) )
142: (*(afunc[OID(a)].mul))(vl,a,b,r);
143: else if ( (mid = MAX(OID(a),OID(b))) <= O_R ||
144: (mid == O_MAT) || (mid == O_VECT) || (mid == O_DP) )
145: (*afunc[mid].mul)(vl,a,b,r);
146: else
147: notdef(vl,a,b,r);
148: }
149:
150: void arf_div(vl,a,b,r)
151: VL vl;
152: Obj a,b,*r;
153: {
154: int mid;
155:
156: if ( !b )
157: error("div : division by 0");
158: if ( !a )
159: *r = 0;
160: else if ( (OID(a) == OID(b)) )
161: (*(afunc[OID(a)].div))(vl,a,b,r);
162: else if ( (mid = MAX(OID(a),OID(b))) <= O_R ||
163: (mid == O_MAT) || (mid == O_VECT) || (mid == O_DP) )
164: (*afunc[mid].div)(vl,a,b,r);
165: else
166: notdef(vl,a,b,r);
167: }
168:
169: void arf_remain(vl,a,b,r)
170: VL vl;
171: Obj a,b,*r;
172: {
173: if ( !b )
174: error("rem : division by 0");
175: else if ( !a )
176: *r = 0;
177: else if ( MAX(OID(a),OID(b)) <= O_P )
178: cmp((Q)b,(P)a,(P *)r);
179: else
180: notdef(vl,a,b,r);
181: }
182:
183: void arf_pwr(vl,a,e,r)
184: VL vl;
185: Obj a,e,*r;
186: {
187: R t;
188:
189: if ( !a )
190: *r = 0;
191: else if ( !e )
192: *r = (pointer)ONE;
193: else if ( (OID(e) <= O_N) && INT(e) ) {
194: if ( (OID(a) == O_P) && (SGN((Q)e) < 0) ) {
195: MKRAT((P)a,(P)ONE,1,t);
196: (*(afunc[O_R].pwr))(vl,t,e,r);
197: } else
198: (*(afunc[OID(a)].pwr))(vl,a,e,r);
199: } else if ( OID(a) <= O_R )
200: mkpow(vl,a,e,r);
201: else
202: notdef(vl,a,e,r);
203: }
204:
205: void arf_chsgn(a,r)
206: Obj a,*r;
207: {
208: if ( !a )
209: *r = 0;
210: else
211: (*(afunc[OID(a)].chsgn))(a,r);
212: }
213:
214: int arf_comp(vl,a,b)
215: VL vl;
216: Obj a,b;
217: {
218: if ( !a )
219: if ( !b )
220: return 0;
221: else
222: return (*afunc[OID(b)].comp)(vl,a,b);
223: else if ( !b )
224: return (*afunc[OID(a)].comp)(vl,a,b);
225: else if ( OID(a) != OID(b) )
226: return OID(a)>OID(b) ? 1 : -1;
227: else
228: return (*afunc[OID(a)].comp)(vl,a,b);
229: }
230:
231: int complist(vl,a,b)
232: VL vl;
233: LIST a,b;
234: {
235: int i,t;
236: NODE an,bn;
237:
238: if ( !a )
239: if ( !b )
240: return 0;
241: else
242: return -1;
243: else if ( !b )
244: return 1;
245: for ( i = 0, an = BDY(a); an; i++, an = NEXT(an) );
246: for ( an = BDY(b); an; i--, an = NEXT(an) );
247: if ( i )
248: return i > 0 ? 1 : -1;
249: for ( an = BDY(a), bn = BDY(b); an; an = NEXT(an), bn = NEXT(bn) )
250: if ( t = arf_comp(vl,BDY(an),BDY(bn)) )
251: return t;
252: return 0;
253: }
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