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4c74403188
Change-Id: Iae65e95cfa0d92091b8b0a424ae36d88efa76aa9 Reviewed-on: https://review.haiku-os.org/c/buildtools/+/3020 Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
128 lines
2.9 KiB
C
128 lines
2.9 KiB
C
/* Test mpn_mod_1 variants.
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Copyright 2010, 2013 Free Software Foundation, Inc.
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This file is part of the GNU MP Library test suite.
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The GNU MP Library test suite is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 3 of the License,
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or (at your option) any later version.
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The GNU MP Library test suite is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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Public License for more details.
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You should have received a copy of the GNU General Public License along with
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the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
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#include <stdio.h>
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#include <stdlib.h>
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#include "gmp-impl.h"
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#include "tests.h"
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static void
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check_one (mp_srcptr ap, mp_size_t n, mp_limb_t b)
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{
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mp_limb_t r_ref = refmpn_mod_1 (ap, n, b);
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mp_limb_t r;
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if (n >= 2)
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{
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mp_limb_t pre[4];
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mpn_mod_1_1p_cps (pre, b);
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r = mpn_mod_1_1p (ap, n, b << pre[1], pre);
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if (r != r_ref)
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{
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printf ("mpn_mod_1_1p failed\n");
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goto fail;
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}
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}
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if ((b & GMP_NUMB_HIGHBIT) == 0)
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{
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mp_limb_t pre[5];
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mpn_mod_1s_2p_cps (pre, b);
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r = mpn_mod_1s_2p (ap, n, b << pre[1], pre);
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if (r != r_ref)
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{
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printf ("mpn_mod_1s_2p failed\n");
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goto fail;
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}
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}
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if (b <= GMP_NUMB_MASK / 3)
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{
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mp_limb_t pre[6];
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mpn_mod_1s_3p_cps (pre, b);
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r = mpn_mod_1s_3p (ap, n, b << pre[1], pre);
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if (r != r_ref)
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{
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printf ("mpn_mod_1s_3p failed\n");
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goto fail;
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}
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}
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if (b <= GMP_NUMB_MASK / 4)
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{
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mp_limb_t pre[7];
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mpn_mod_1s_4p_cps (pre, b);
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r = mpn_mod_1s_4p (ap, n, b << pre[1], pre);
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if (r != r_ref)
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{
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printf ("mpn_mod_1s_4p failed\n");
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goto fail;
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}
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}
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r = mpn_mod_1 (ap, n, b);
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if (r != r_ref)
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{
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printf ("mpn_mod_1 failed\n");
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fail:
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printf ("an = %d, a: ", (int) n); mpn_dump (ap, n);
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printf ("b : "); mpn_dump (&b, 1);
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printf ("r (expected): "); mpn_dump (&r_ref, 1);
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printf ("r (bad) : "); mpn_dump (&r, 1);
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abort();
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}
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}
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int
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main (int argc, char **argv)
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{
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gmp_randstate_ptr rands;
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int i;
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unsigned a_bits;
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unsigned b_bits;
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mpz_t a;
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mpz_t b;
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tests_start ();
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rands = RANDS;
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mpz_init (a);
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mpz_init (b);
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for (i = 0; i < 300; i++)
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{
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mp_size_t asize;
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a_bits = 1 + gmp_urandomm_ui (rands, 1000);
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b_bits = 1 + gmp_urandomm_ui (rands, GMP_NUMB_BITS);
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mpz_rrandomb (a, rands, a_bits);
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mpz_rrandomb (b, rands, b_bits);
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asize = SIZ(a);
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if (!asize)
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asize = 1;
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if (mpz_sgn (b) == 0)
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mpz_set_ui (b, 1);
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check_one (PTR(a), asize, PTR(b)[0]);
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}
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mpz_clear (a);
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mpz_clear (b);
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tests_end ();
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return 0;
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}
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