Annotation of OpenXM_contrib/gmp/mpfr/tests/tcmp.c, Revision 1.1.1.2
1.1 maekawa 1: /* Test file for mpfr_cmp.
2:
1.1.1.2 ! ohara 3: Copyright 1999, 2001, 2002 Free Software Foundation, Inc.
1.1 maekawa 4:
5: This file is part of the MPFR Library.
6:
7: The MPFR Library is free software; you can redistribute it and/or modify
1.1.1.2 ! ohara 8: it under the terms of the GNU Lesser General Public License as published by
! 9: the Free Software Foundation; either version 2.1 of the License, or (at your
1.1 maekawa 10: option) any later version.
11:
12: The MPFR Library is distributed in the hope that it will be useful, but
13: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
1.1.1.2 ! ohara 14: or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
1.1 maekawa 15: License for more details.
16:
1.1.1.2 ! ohara 17: You should have received a copy of the GNU Lesser General Public License
1.1 maekawa 18: along with the MPFR Library; see the file COPYING.LIB. If not, write to
19: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
20: MA 02111-1307, USA. */
21:
22: #include <stdio.h>
23: #include <stdlib.h>
24: #include <math.h>
25: #include "gmp.h"
26: #include "mpfr.h"
27: #include "mpfr-impl.h"
1.1.1.2 ! ohara 28: #include "mpfr-test.h"
1.1 maekawa 29:
30: int
1.1.1.2 ! ohara 31: main (void)
1.1 maekawa 32: {
1.1.1.2 ! ohara 33: double x, y;
! 34: mpfr_t xx, yy;
! 35: int i, c;
! 36: mp_prec_t p;
! 37:
! 38: mpfr_init (xx);
! 39: mpfr_init (yy);
! 40:
! 41: mpfr_set_prec (xx, 2);
! 42: mpfr_set_prec (yy, 2);
! 43: mpfr_set_str_raw(xx, "-0.10E0");
! 44: mpfr_set_str_raw(yy, "-0.10E0");
! 45: if (mpfr_cmp (xx, yy))
! 46: {
! 47: fprintf (stderr, "mpfr_cmp (xx, yy) returns non-zero for prec=2\n");
! 48: exit (1);
! 49: }
1.1 maekawa 50:
1.1.1.2 ! ohara 51: mpfr_set_prec (xx, 65);
! 52: mpfr_set_prec (yy, 65);
1.1 maekawa 53: mpfr_set_str_raw(xx, "0.10011010101000110101010000000011001001001110001011101011111011101E623");
54: mpfr_set_str_raw(yy, "0.10011010101000110101010000000011001001001110001011101011111011100E623");
1.1.1.2 ! ohara 55: p = 0;
! 56: if (mpfr_cmp2(xx, yy, &p) <= 0 || p != 64)
! 57: {
! 58: printf("Error (1) in mpfr_cmp2\n");
! 59: exit(1);
! 60: }
1.1 maekawa 61: mpfr_set_str_raw(xx, "0.10100010001110110111000010001000010011111101000100011101000011100");
62: mpfr_set_str_raw(yy, "0.10100010001110110111000010001000010011111101000100011101000011011");
1.1.1.2 ! ohara 63: p = 0;
! 64: if (mpfr_cmp2(xx, yy, &p) <= 0 || p != 64)
! 65: {
! 66: printf("Error (2) in mpfr_cmp2\n");
! 67: exit(1);
! 68: }
! 69:
! 70: mpfr_set_prec (xx, 160); mpfr_set_prec (yy, 160);
! 71: mpfr_set_str_raw (xx, "0.1E1");
! 72: mpfr_set_str_raw (yy, "0.1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111100000110001110100");
! 73: p = 0;
! 74: if (mpfr_cmp2 (xx, yy, &p) <= 0 || p != 144)
! 75: {
! 76: printf("Error (3) in mpfr_cmp2\n");
! 77: exit(1);
! 78: }
! 79:
! 80: mpfr_set_prec(xx, 53); mpfr_set_prec(yy, 200);
1.1 maekawa 81: mpfr_set_d(xx, 1.0, 0);
82: mpfr_set_d(yy, 1.0, 0);
83: if (mpfr_cmp(xx,yy)!=0) {
84: printf("Error in mpfr_cmp: 1.0 != 1.0\n"); exit(1);
85: }
86: mpfr_set_prec(yy, 31);
87: mpfr_set_d(xx, 1.0000000002, 0);
88: mpfr_set_d(yy, 1.0, 0);
89: if (!(mpfr_cmp(xx,yy)>0)) {
90: printf("Error in mpfr_cmp: not 1.0000000002 > 1.0\n"); exit(1);
91: }
92: mpfr_set_prec(yy, 53);
1.1.1.2 ! ohara 93:
! 94: /* bug found by Gerardo Ballabio */
! 95: mpfr_set_d(xx, 0.0, GMP_RNDN);
! 96: mpfr_set_d(yy, 0.1, GMP_RNDN);
! 97: if (mpfr_cmp(xx, yy) >= 0) {
! 98: fprintf(stderr,
! 99: "Error in mpfr_cmp(0.0, 0.1), gives %d\n", mpfr_cmp(xx, yy));
! 100: exit(1);
! 101: }
! 102:
! 103: mpfr_set_inf (xx, 1);
! 104: mpfr_set_d(yy, -23489745.0329, GMP_RNDN);
! 105: if (mpfr_cmp(xx, yy) <= 0) {
! 106: fprintf(stderr,
! 107: "Error in mpfr_cmp(Infp, 23489745.0329), gives %d\n", mpfr_cmp(xx, yy));
! 108: exit(1);
! 109: }
! 110:
! 111: mpfr_set_inf (xx, 1);
! 112: mpfr_set_inf (yy, -1);
! 113: if (mpfr_cmp(xx, yy) <= 0) {
! 114: fprintf(stderr,
! 115: "Error in mpfr_cmp(Infp, Infm), gives %d\n", mpfr_cmp(xx, yy));
! 116: exit(1);
! 117: }
! 118:
! 119: mpfr_set_inf (xx, -1);
! 120: mpfr_set_inf (yy, 1);
! 121: if (mpfr_cmp(xx, yy) >= 0) {
! 122: fprintf(stderr,
! 123: "Error in mpfr_cmp(Infm, Infp), gives %d\n", mpfr_cmp(xx, yy));
! 124: exit(1);
! 125: }
! 126:
! 127: mpfr_set_inf (xx, 1);
! 128: mpfr_set_inf (yy, 1);
! 129: if (mpfr_cmp(xx, yy) != 0) {
! 130: fprintf(stderr,
! 131: "Error in mpfr_cmp(Infp, Infp), gives %d\n", mpfr_cmp(xx, yy));
! 132: exit(1);
! 133: }
! 134:
! 135: mpfr_set_inf (xx, -1);
! 136: mpfr_set_inf (yy, -1);
! 137: if (mpfr_cmp(xx, yy) != 0) {
! 138: fprintf(stderr,
! 139: "Error in mpfr_cmp(Infm, Infm), gives %d\n", mpfr_cmp(xx, yy));
! 140: exit(1);
! 141: }
! 142:
! 143: mpfr_set_inf (xx, -1);
! 144: mpfr_set_d(yy, 2346.09234, GMP_RNDN);
! 145: if (mpfr_cmp(xx, yy) >= 0) {
! 146: fprintf(stderr,
! 147: "Error in mpfr_cmp(Infm, 2346.09234), gives %d\n", mpfr_cmp(xx, yy));
! 148: exit(1);
! 149: }
! 150:
! 151: mpfr_set_d (xx, 0.0, GMP_RNDN);
! 152: mpfr_set_d (yy, 1.0, GMP_RNDN);
! 153: if ((i = mpfr_cmp3 (xx, yy, 1)) >= 0) {
! 154: fprintf (stderr, "Error: mpfr_cmp3 (0, 1, 1) gives %d instead of a negative value\n", i);
! 155: exit (1);
! 156: }
! 157: if ((i = mpfr_cmp3 (xx, yy, -1)) <= 0) {
! 158: fprintf (stderr, "Error: mpfr_cmp3 (0, 1, -1) gives %d instead of a positive value\n", i);
! 159: exit (1);
! 160: }
! 161:
! 162: for (i=0;i<1000000;) { x=drand(); y=drand();
1.1 maekawa 163: if (!isnan(x) && !isnan(y)) {
164: i++;
165: mpfr_set_d(xx, x, 0);
166: mpfr_set_d(yy, y, 0);
167: c = mpfr_cmp(xx,yy);
168: if ((c>0 && x<=y) || (c==0 && x!=y) || (c<0 && x>=y)) {
169: printf("Error in mpfr_cmp with x=%1.20e, y=%1.20e mpfr_cmp(x,y)=%d\n",
170: x,y,c); exit(1);
171: }
172: }
173: }
1.1.1.2 ! ohara 174:
1.1 maekawa 175: mpfr_clear(xx); mpfr_clear(yy);
1.1.1.2 ! ohara 176:
! 177: return 0;
1.1 maekawa 178: }
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