3 Copyright 1996, 1997, 2001, 2002 Free Software Foundation, Inc.
5 This file is part of the GNU MP Library.
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 3 of the License, or (at your
10 option) any later version.
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.
17 You should have received a copy of the GNU Lesser General Public License
18 along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
27 #define NUM(x) (&((x)->_mp_num))
28 #define DEN(x) (&((x)->_mp_den))
30 #define SGN(x) ((x) < 0 ? -1 : (x) > 0 ? 1 : 0)
33 ref_mpq_cmp_ui (mpq_t a, unsigned long int bn, unsigned long int bd)
41 mpz_mul_ui (ai, NUM (a), bd);
42 mpz_mul_ui (bi, DEN (a), bn);
43 cc = mpz_cmp (ai, bi);
50 #define SIZE 8 /* increasing this lowers the probabilty of finding an error */
54 main (int argc, char **argv)
61 unsigned long int bn, bd;
66 reps = atoi (argv[1]);
71 for (i = 0; i < reps; i++)
73 size = urandom () % SIZE - SIZE/2;
74 mpz_random2 (NUM (a), size);
77 size = urandom () % SIZE - SIZE/2;
78 mpz_random2 (DEN (a), size);
80 while (mpz_cmp_ui (DEN (a), 0) == 0);
82 mpz_random2 (NUM (b), (mp_size_t) 1);
83 mpz_mod_ui (NUM (b), NUM (b), ~(unsigned long int) 0);
84 mpz_add_ui (NUM (b), NUM (b), 1);
86 mpz_random2 (DEN (b), (mp_size_t) 1);
87 mpz_mod_ui (DEN (b), DEN (b), ~(unsigned long int) 0);
88 mpz_add_ui (DEN (b), DEN (b), 1);
93 bn = mpz_get_ui (NUM (b));
94 bd = mpz_get_ui (DEN (b));
96 ccref = ref_mpq_cmp_ui (a, bn, bd);
97 cc = mpq_cmp_ui (a, bn, bd);
99 if (SGN (ccref) != SGN (cc))