80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
/* Test popc_limb.
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Copyright 2002, 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 <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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int
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main (void)
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{
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mp_limb_t src, want, got;
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int i;
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tests_start ();
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mp_trace_base = -16;
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for (i = 0; i < GMP_LIMB_BITS; i++)
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{
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src = CNST_LIMB(1) << i;
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want = 1;
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popc_limb (got, src);
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if (got != want)
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{
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error:
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printf ("popc_limb wrong result\n");
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mpn_trace (" src ", &src, (mp_size_t) 1);
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mpn_trace (" want", &want, (mp_size_t) 1);
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mpn_trace (" got ", &got, (mp_size_t) 1);
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abort ();
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}
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}
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src = 0;
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want = 0;
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for (i = 0; i < GMP_LIMB_BITS; i++)
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{
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src += CNST_LIMB(1) << i;
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want += 1;
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popc_limb (got, src);
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if (got != want)
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{
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goto error;
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}
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}
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for (i = 0; i < 100; i++)
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{
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mpn_random2 (&src, (mp_size_t) 1);
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want = ref_popc_limb (src);
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popc_limb (got, src);
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if (got != want)
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goto error;
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}
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tests_end ();
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exit (0);
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}
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