mirror of https://github.com/macssh/macssh.git
78 lines
1.9 KiB
C
Executable File
78 lines
1.9 KiB
C
Executable File
/* Test mpz_ui_pow_ui, mpz_fdiv_q, mpz_fdiv_q_2exp, mpz_fdiv_r,
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mpz_fdiv_r_2exp, and mpz_mul_2exp.
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Copyright (C) 1997, 1999, 2000 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., 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 "longlong.h"
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#include "urandom.h"
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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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mpz_t x, r1, r2, q1, q2, d, t;
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unsigned long int c;
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int test;
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int ntests = 100000;
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if (argc == 2)
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ntests = atoi (argv[1]);
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mpz_init (x);
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mpz_init (q1);
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mpz_init (q2);
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mpz_init (r1);
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mpz_init (r2);
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mpz_init (d);
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mpz_init (t);
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for (test = 1; test <= ntests; test++)
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{
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mpz_random2 (x, urandom () % (2 * SIZE) - SIZE);
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c = urandom () % (3 * SIZE / 2 * BITS_PER_MP_LIMB);
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mpz_ui_pow_ui (d, (unsigned long) 2, c);
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mpz_fdiv_q (q1, x, d);
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mpz_fdiv_q_2exp (q2, x, c);
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mpz_fdiv_r (r1, x, d);
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mpz_fdiv_r_2exp (r2, x, c);
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if (mpz_cmp (q1, q2) != 0 || mpz_cmp (r1, r2) != 0)
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abort ();
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mpz_mul_2exp (t, q1, c);
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mpz_add (t, t, r1);
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if (mpz_cmp (t, x) != 0)
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abort ();
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if (mpz_cmp (r1, d) >= 0)
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abort ();
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}
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exit (0);
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}
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