mirror of https://github.com/macssh/macssh.git
121 lines
2.7 KiB
C
Executable File
121 lines
2.7 KiB
C
Executable File
/* Test mpz_setbit, mpz_clrbit, mpz_tstbit.
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Copyright (C) 1997 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 "urandom.h"
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void debug_mp ();
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#ifndef SIZE
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#define SIZE 4
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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, s0, s1, s2, s3, m;
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mp_size_t xsize;
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int i;
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int reps = 100000;
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int bit0, bit1, bit2, bit3;
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unsigned long int bitindex;
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if (argc == 2)
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reps = atoi (argv[1]);
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mpz_init (x);
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mpz_init (s0);
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mpz_init (s1);
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mpz_init (s2);
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mpz_init (s3);
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mpz_init (m);
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for (i = 0; i < reps; i++)
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{
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xsize = urandom () % (2 * SIZE) - SIZE;
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mpz_random2 (x, xsize);
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bitindex = urandom () % SIZE;
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mpz_set (s0, x);
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bit0 = mpz_tstbit (x, bitindex);
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mpz_setbit (x, bitindex);
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MPZ_CHECK_FORMAT (x);
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mpz_set (s1, x);
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bit1 = mpz_tstbit (x, bitindex);
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mpz_clrbit (x, bitindex);
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MPZ_CHECK_FORMAT (x);
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mpz_set (s2, x);
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bit2 = mpz_tstbit (x, bitindex);
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mpz_setbit (x, bitindex);
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MPZ_CHECK_FORMAT (x);
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mpz_set (s3, x);
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bit3 = mpz_tstbit (x, bitindex);
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if (bit1 != 1 || bit2 != 0 || bit3 != 1)
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abort ();
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if (bit0 == 0)
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{
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if (mpz_cmp (s0, s1) == 0 || mpz_cmp (s0, s2) != 0 || mpz_cmp (s0, s3) == 0)
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abort ();
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}
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else
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{
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if (mpz_cmp (s0, s1) != 0 || mpz_cmp (s0, s2) == 0 || mpz_cmp (s0, s3) != 0)
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abort ();
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}
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if (mpz_cmp (s1, s2) == 0 || mpz_cmp (s1, s3) != 0)
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abort ();
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if (mpz_cmp (s2, s3) == 0)
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abort ();
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mpz_ui_pow_ui (m, 2L, bitindex);
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MPZ_CHECK_FORMAT (m);
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mpz_ior (x, s2, m);
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MPZ_CHECK_FORMAT (x);
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if (mpz_cmp (x, s3) != 0)
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abort ();
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mpz_com (m, m);
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MPZ_CHECK_FORMAT (m);
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mpz_and (x, s1, m);
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MPZ_CHECK_FORMAT (x);
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if (mpz_cmp (x, s2) != 0)
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abort ();
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}
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exit (0);
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}
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void
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debug_mp (x, base)
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MP_INT *x;
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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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