vasilito
ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
/* Test mpn_mul function for all sizes up to a selected limit.
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Copyright 2011, 2012 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 <stdlib.h>
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#include <stdio.h>
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#include "gmp-impl.h"
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#include "tests.h"
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static unsigned
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isqrt (unsigned t)
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{
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unsigned s, b;
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for (b = 0, s = t; b++, s >>= 1; )
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;
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s = 1 << (b >> 1);
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if (b & 1)
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s += s >> 1;
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do
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{
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b = t / s;
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s = (s + b) >> 1;
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}
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while (b < s);
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return s;
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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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mp_ptr ap, bp, rp, refp;
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mp_size_t max_n, an, bn, rn;
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int reps;
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TMP_DECL;
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TMP_MARK;
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reps = 1;
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tests_start ();
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TESTS_REPS (reps, argv, argc);
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/* Re-interpret reps argument as a size argument. */
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max_n = isqrt (reps * 25000);
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ap = TMP_ALLOC_LIMBS (max_n + 1);
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bp = TMP_ALLOC_LIMBS (max_n + 1);
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rp = TMP_ALLOC_LIMBS (2 * max_n);
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refp = TMP_ALLOC_LIMBS (2 * max_n);
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for (an = 1; an <= max_n; an += 1)
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{
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for (bn = 1; bn <= an; bn += 1)
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{
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mpn_random2 (ap, an + 1);
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mpn_random2 (bp, bn + 1);
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refmpn_mul (refp, ap, an, bp, bn);
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mpn_mul (rp, ap, an, bp, bn);
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rn = an + bn;
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if (mpn_cmp (refp, rp, rn))
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{
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printf ("ERROR, an = %d, bn = %d, rn = %d\n",
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(int) an, (int) bn, (int) rn);
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printf ("a: "); mpn_dump (ap, an);
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printf ("b: "); mpn_dump (bp, bn);
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printf ("r: "); mpn_dump (rp, rn);
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printf ("ref: "); mpn_dump (refp, rn);
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abort();
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}
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}
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}
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TMP_FREE;
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tests_end ();
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return 0;
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}
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