Annotation of OpenXM_contrib/gmp/tests/mpq/t-cmp.c, Revision 1.1
1.1 ! ohara 1: /* Test mpq_cmp.
! 2:
! 3: Copyright 1996, 2001 Free Software Foundation, Inc.
! 4:
! 5: This file is part of the GNU MP Library.
! 6:
! 7: The GNU MP Library is free software; you can redistribute it and/or modify
! 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
! 10: option) any later version.
! 11:
! 12: The GNU MP Library is distributed in the hope that it will be useful, but
! 13: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
! 14: or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
! 15: License for more details.
! 16:
! 17: You should have received a copy of the GNU Lesser General Public License
! 18: along with the GNU MP 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:
! 25: #include "gmp.h"
! 26: #include "gmp-impl.h"
! 27: #include "tests.h"
! 28:
! 29: #define NUM(x) (&((x)->_mp_num))
! 30: #define DEN(x) (&((x)->_mp_den))
! 31:
! 32: #define SGN(x) ((x) < 0 ? -1 : (x) > 0 ? 1 : 0)
! 33:
! 34: int
! 35: ref_mpq_cmp (mpq_t a, mpq_t b)
! 36: {
! 37: mpz_t ai, bi;
! 38: int cc;
! 39:
! 40: mpz_init (ai);
! 41: mpz_init (bi);
! 42:
! 43: mpz_mul (ai, NUM (a), DEN (b));
! 44: mpz_mul (bi, NUM (b), DEN (a));
! 45: cc = mpz_cmp (ai, bi);
! 46: mpz_clear (ai);
! 47: mpz_clear (bi);
! 48: return cc;
! 49: }
! 50:
! 51: #ifndef SIZE
! 52: #define SIZE 8 /* increasing this lowers the probabilty of finding an error */
! 53: #endif
! 54:
! 55: int
! 56: main (int argc, char **argv)
! 57: {
! 58: mpq_t a, b;
! 59: mp_size_t size;
! 60: int reps = 100000;
! 61: int i;
! 62: int cc, ccref;
! 63:
! 64: tests_start ();
! 65:
! 66: if (argc == 2)
! 67: reps = atoi (argv[1]);
! 68:
! 69: mpq_init (a);
! 70: mpq_init (b);
! 71:
! 72: for (i = 0; i < reps; i++)
! 73: {
! 74: size = urandom () % SIZE - SIZE/2;
! 75: mpz_random2 (NUM (a), size);
! 76: do
! 77: {
! 78: size = urandom () % SIZE - SIZE/2;
! 79: mpz_random2 (DEN (a), size);
! 80: }
! 81: while (mpz_cmp_ui (DEN (a), 0) == 0);
! 82:
! 83: size = urandom () % SIZE - SIZE/2;
! 84: mpz_random2 (NUM (b), size);
! 85: do
! 86: {
! 87: size = urandom () % SIZE - SIZE/2;
! 88: mpz_random2 (DEN (b), size);
! 89: }
! 90: while (mpz_cmp_ui (DEN (b), 0) == 0);
! 91:
! 92: mpq_canonicalize (a);
! 93: mpq_canonicalize (b);
! 94:
! 95: ccref = ref_mpq_cmp (a, b);
! 96: cc = mpq_cmp (a, b);
! 97:
! 98: if (SGN (ccref) != SGN (cc))
! 99: abort ();
! 100: }
! 101:
! 102: mpq_clear (a);
! 103: mpq_clear (b);
! 104:
! 105: tests_end ();
! 106: exit (0);
! 107: }
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