98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
/* Test mpz_add, mpz_add_ui, mpz_cmp, mpz_cmp, mpz_mul, mpz_sqrtrem.
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Copyright (C) 1991, 1993 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 General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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The GNU MP Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with the GNU MP Library; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, 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 8
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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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MP_INT x2;
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MP_INT x, rem;
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MP_INT temp, temp2;
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mp_size 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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MP_INT *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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MP_INT *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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