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

1.1     ! ohara       1: /* Test mpz_divexact_ui.
        !             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:
        !            30: void
        !            31: check_random (int argc, char *argv[])
        !            32: {
        !            33:   gmp_randstate_ptr rands = RANDS;
        !            34:   int    reps = 5000;
        !            35:   mpz_t  a, q, got;
        !            36:   int    i, qneg;
        !            37:   unsigned long  d;
        !            38:
        !            39:   if (argc == 2)
        !            40:     reps = atoi (argv[1]);
        !            41:
        !            42:   mpz_init (a);
        !            43:   mpz_init (q);
        !            44:   mpz_init (got);
        !            45:
        !            46:   for (i = 0; i < reps; i++)
        !            47:     {
        !            48:       d = (unsigned long) urandom();
        !            49:       mpz_erandomb (q, rands, 512);
        !            50:       mpz_mul_ui (a, q, d);
        !            51:
        !            52:       for (qneg = 0; qneg <= 1; qneg++)
        !            53:         {
        !            54:           mpz_divexact_ui (got, a, d);
        !            55:           MPZ_CHECK_FORMAT (got);
        !            56:           if (mpz_cmp (got, q) != 0)
        !            57:             {
        !            58:               printf    ("mpz_divexact_ui wrong\n");
        !            59:               mpz_trace ("    a", a);
        !            60:               printf    ("    d=%lu\n", d);
        !            61:               mpz_trace ("    q", q);
        !            62:               mpz_trace ("  got", got);
        !            63:               abort ();
        !            64:             }
        !            65:
        !            66:           mpz_neg (q, q);
        !            67:           mpz_neg (a, a);
        !            68:         }
        !            69:
        !            70:     }
        !            71:
        !            72:   mpz_clear (a);
        !            73:   mpz_clear (q);
        !            74:   mpz_clear (got);
        !            75: }
        !            76:
        !            77:
        !            78: int
        !            79: main (int argc, char **argv)
        !            80: {
        !            81:   tests_start ();
        !            82:
        !            83:   check_random (argc, argv);
        !            84:
        !            85:   tests_end ();
        !            86:   exit (0);
        !            87: }