125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
/* Test mpz_add, mpz_sub, mpz_add_ui, mpz_sub_ui, and mpz_ui_sub.
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Copyright 2002 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 Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 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 Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser 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., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include <stdio.h>
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#include <stdlib.h>
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#include "mpir.h"
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#include "gmp-impl.h"
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#include "longlong.h"
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#include "tests.h"
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void debug_mp _PROTO ((mpz_t, int));
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void dump_abort _PROTO ((int, char *, mpz_t, mpz_t));
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int
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main (int argc, char **argv)
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{
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mpz_t op1, op2, r1, r2;
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mp_size_t op1n, op2n;
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unsigned long int op2long;
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int i;
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int reps = 100000;
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gmp_randstate_t rands;
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mpz_t bs;
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unsigned long bsi, size_range;
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tests_start ();
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gmp_randinit_default(rands);
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mpz_init (bs);
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if (argc == 2)
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reps = atoi (argv[1]);
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mpz_init (op1);
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mpz_init (op2);
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mpz_init (r1);
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mpz_init (r2);
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for (i = 0; i < reps; i++)
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{
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mpz_urandomb (bs, rands, 32);
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size_range = mpz_get_ui (bs) % 10 + 2;
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mpz_urandomb (bs, rands, size_range);
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op1n = mpz_get_ui (bs);
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mpz_rrandomb (op1, rands, op1n);
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mpz_urandomb (bs, rands, size_range);
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op2n = mpz_get_ui (bs);
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mpz_rrandomb (op2, rands, op2n);
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mpz_urandomb (bs, rands, 2);
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bsi = mpz_get_ui (bs);
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if ((bsi & 1) != 0)
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mpz_neg (op1, op1);
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if ((bsi & 2) != 0)
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mpz_neg (op2, op2);
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/* printf ("%ld %ld\n", SIZ (multiplier), SIZ (multiplicand)); */
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mpz_add (r1, op1, op2);
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mpz_sub (r2, r1, op2);
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if (mpz_cmp (r2, op1) != 0)
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dump_abort (i, "mpz_add or mpz_sub incorrect", op1, op2);
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if (mpz_fits_ulong_p (op2))
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{
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op2long = mpz_get_ui (op2);
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mpz_add_ui (r1, op1, op2long);
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mpz_sub_ui (r2, r1, op2long);
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if (mpz_cmp (r2, op1) != 0)
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dump_abort (i, "mpz_add_ui or mpz_sub_ui incorrect", op1, op2);
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mpz_ui_sub (r1, op2long, op1);
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mpz_sub_ui (r2, op1, op2long);
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mpz_neg (r2, r2);
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if (mpz_cmp (r1, r2) != 0)
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dump_abort (i, "mpz_add_ui or mpz_ui_sub incorrect", op1, op2);
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}
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}
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mpz_clear (bs);
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mpz_clear (op1);
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mpz_clear (op2);
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mpz_clear (r1);
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mpz_clear (r2);
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gmp_randclear(rands);
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tests_end ();
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exit (0);
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}
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void
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dump_abort (int i, char *s, mpz_t op1, mpz_t op2)
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{
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fprintf (stderr, "ERROR: %s in test %d\n", s, i);
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fprintf (stderr, "op1 = "); debug_mp (op1, -16);
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fprintf (stderr, "op2 = "); debug_mp (op2, -16);
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abort();
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}
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void
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debug_mp (mpz_t x, int base)
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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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