105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
/* Test mpz_cmp_si.
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Copyright 2000, 2001 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., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include <stdio.h>
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#include <stdlib.h>
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#include "gmp.h"
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#include "gmp-impl.h"
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#include "tests.h"
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#define SGN(x) ((x) < 0 ? -1 : (x) == 0 ? 0 : 1)
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void
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check_data (void)
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{
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static const struct {
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const char *a, *b;
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int want;
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} data[] = {
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{ "0", "1", -1 },
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{ "0", "0", 0 },
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{ "0", "-1", 1 },
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{ "1", "1", 0 },
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{ "1", "0", 1 },
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{ "1", "-1", 1 },
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{ "-1", "1", -1 },
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{ "-1", "0", -1 },
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{ "-1", "-1", 0 },
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{ "0", "-0x80000000", 1 },
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{ "0x80000000", "-0x80000000", 1 },
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{ "0x80000001", "-0x80000000", 1 },
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{ "-0x80000000", "-0x80000000", 0 },
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{ "-0x80000001", "-0x80000000", -1 },
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{ "0", "-0x8000000000000000", 1 },
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{ "0x8000000000000000", "-0x8000000000000000", 1 },
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{ "0x8000000000000001", "-0x8000000000000000", 1 },
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{ "-0x8000000000000000", "-0x8000000000000000", 0 },
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{ "-0x8000000000000001", "-0x8000000000000000", -1 },
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};
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mpz_t a, bz;
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long b;
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int got;
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int i;
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mpz_init (a);
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mpz_init (bz);
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for (i = 0; i < numberof (data); i++)
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{
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mpz_set_str_or_abort (a, data[i].a, 0);
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mpz_set_str_or_abort (bz, data[i].b, 0);
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if (mpz_fits_slong_p (bz))
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{
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b = mpz_get_si (bz);
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got = mpz_cmp_si (a, b);
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if (SGN (got) != data[i].want)
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{
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printf ("mpz_cmp_si wrong on data[%d]\n", i);
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printf (" a="); mpz_out_str (stdout, 10, a); printf ("\n");
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printf (" b=%ld\n", b);
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printf (" got=%d\n", got);
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printf (" want=%d\n", data[i].want);
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abort();
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}
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}
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}
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mpz_clear (a);
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mpz_clear (bz);
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}
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int
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main (void)
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{
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tests_start ();
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check_data ();
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tests_end ();
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exit (0);
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}
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