99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
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/* Test mpz_add, mpz_add_ui, mpz_cmp, mpz_cmp, mpz_mul, mpz_sqrtrem.
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Copyright (C) 1991, 1993, 1994, 1996 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Library General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
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License for more details.
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You should have received a copy of the GNU Library General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA. */
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#include <stdio.h>
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#include "gmp.h"
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#include "gmp-impl.h"
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#include "urandom.h"
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void debug_mp ();
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#ifndef SIZE
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#define SIZE 16
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#endif
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main (argc, argv)
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int argc;
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char **argv;
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{
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mpz_t x2;
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mpz_t x, rem;
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mpz_t temp, temp2;
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mp_size_t x2_size;
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int i;
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int reps = 100000;
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if (argc == 2)
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reps = atoi (argv[1]);
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mpz_init (x2);
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mpz_init (x);
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mpz_init (rem);
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mpz_init (temp);
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mpz_init (temp2);
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for (i = 0; i < reps; i++)
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{
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x2_size = urandom () % SIZE;
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mpz_random2 (x2, x2_size);
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mpz_sqrtrem (x, rem, x2);
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mpz_mul (temp, x, x);
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/* Is square of result > argument? */
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if (mpz_cmp (temp, x2) > 0)
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dump_abort (x2, x, rem);
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mpz_add_ui (temp2, x, 1);
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mpz_mul (temp2, temp2, temp2);
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/* Is square of (result + 1) <= argument? */
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if (mpz_cmp (temp2, x2) <= 0)
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dump_abort (x2, x, rem);
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mpz_add (temp2, temp, rem);
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/* Is the remainder wrong? */
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if (mpz_cmp (x2, temp2) != 0)
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dump_abort (x2, x, rem);
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}
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exit (0);
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}
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dump_abort (x2, x, rem)
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mpz_t x2, x, rem;
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{
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fprintf (stderr, "ERROR\n");
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fprintf (stderr, "x2 = "); debug_mp (x2, -16);
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fprintf (stderr, "x = "); debug_mp (x, -16);
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fprintf (stderr, "remainder = "); debug_mp (rem, -16);
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abort();
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}
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void
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debug_mp (x, base)
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mpz_t x;
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{
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mpz_out_str (stderr, base, x); fputc ('\n', stderr);
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}
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