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/* Test mpz_mul, mpz_divexact.
Copyright (C) 1996 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
The GNU MP Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
License for more details.
You should have received a copy of the GNU Library General Public License
along with the GNU MP Library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */
#include <stdio.h>
#include "gmp.h"
#include "gmp-impl.h"
#include "urandom.h"
void debug_mp ();
#ifndef SIZE
#define SIZE 32
#endif
main (argc, argv)
int argc;
char **argv;
{
mpz_t op1, op2;
mpz_t prod, quot;
mp_size_t size;
int i;
int reps = 100000;
if (argc == 2)
reps = atoi (argv[1]);
mpz_init (op1);
mpz_init (op2);
mpz_init (prod);
mpz_init (quot);
for (i = 0; i < reps; i++)
{
size = urandom () % SIZE - SIZE/2;
mpz_random2 (op1, size);
do
{
size = urandom () % SIZE - SIZE/2;
mpz_random2 (op2, size);
}
while (mpz_cmp_ui (op2, 0) == 0);
mpz_mul (prod, op1, op2);
mpz_divexact (quot, prod, op2);
if (mpz_cmp (quot, op1) != 0)
dump_abort (quot, op1);
}
exit (0);
}
dump_abort (op1, op2)
mpz_t op1, op2;
{
fprintf (stderr, "ERROR\n");
fprintf (stderr, "ref = "); debug_mp (op1, -16);
fprintf (stderr, "wrong = "); debug_mp (op2, -16);
abort();
}
void
debug_mp (x, base)
mpz_t x;
{
mpz_out_str (stderr, base, x); fputc ('\n', stderr);
}
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