Return to dive.c CVS log

Up to [local] / OpenXM_contrib / gmp / mpz / tests

Annotation of OpenXM_contrib/gmp/mpz/tests/dive.c, Revision 1.1

1.1     ! maekawa     1: /* Test mpz_mul, mpz_divexact.
        !             2:
        !             3: Copyright (C) 1996 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 Library General Public License as published by
        !             9: the Free Software Foundation; either version 2 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 Library General Public
        !            15: License for more details.
        !            16:
        !            17: You should have received a copy of the GNU Library 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 "gmp.h"
        !            24: #include "gmp-impl.h"
        !            25: #include "urandom.h"
        !            26:
        !            27: void debug_mp ();
        !            28:
        !            29: #ifndef SIZE
        !            30: #define SIZE 32
        !            31: #endif
        !            32:
        !            33: main (argc, argv)
        !            34:      int argc;
        !            35:      char **argv;
        !            36: {
        !            37:   mpz_t op1, op2;
        !            38:   mpz_t prod, quot;
        !            39:   mp_size_t size;
        !            40:   int i;
        !            41:   int reps = 100000;
        !            42:
        !            43:   if (argc == 2)
        !            44:      reps = atoi (argv[1]);
        !            45:
        !            46:   mpz_init (op1);
        !            47:   mpz_init (op2);
        !            48:   mpz_init (prod);
        !            49:   mpz_init (quot);
        !            50:
        !            51:   for (i = 0; i < reps; i++)
        !            52:     {
        !            53:       size = urandom () % SIZE - SIZE/2;
        !            54:       mpz_random2 (op1, size);
        !            55:
        !            56:       do
        !            57:        {
        !            58:          size = urandom () % SIZE - SIZE/2;
        !            59:          mpz_random2 (op2, size);
        !            60:        }
        !            61:       while (mpz_cmp_ui (op2, 0) == 0);
        !            62:
        !            63:       mpz_mul (prod, op1, op2);
        !            64:
        !            65:       mpz_divexact (quot, prod, op2);
        !            66:       if (mpz_cmp (quot, op1) != 0)
        !            67:        dump_abort (quot, op1);
        !            68:     }
        !            69:
        !            70:   exit (0);
        !            71: }
        !            72:
        !            73: dump_abort (op1, op2)
        !            74:      mpz_t op1, op2;
        !            75: {
        !            76:   fprintf (stderr, "ERROR\n");
        !            77:   fprintf (stderr, "ref = "); debug_mp (op1, -16);
        !            78:   fprintf (stderr, "wrong = "); debug_mp (op2, -16);
        !            79:   abort();
        !            80: }
        !            81:
        !            82: void
        !            83: debug_mp (x, base)
        !            84:      mpz_t x;
        !            85: {
        !            86:   mpz_out_str (stderr, base, x); fputc ('\n', stderr);
        !            87: }