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/* Test mpq_equal.
Copyright 2001 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
The GNU MP Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
#include <stdio.h>
#include <stdlib.h>
#include "gmp.h"
#include "gmp-impl.h"
#include "tests.h"
void
check_one (mpq_srcptr x, mpq_srcptr y, int want)
{
int got;
MPQ_CHECK_FORMAT (x);
MPQ_CHECK_FORMAT (y);
got = mpq_equal (x, y);
if ((got != 0) != (want != 0))
{
printf ("mpq_equal got %d want %d\n", got, want);
mpq_trace ("x", x);
mpq_trace ("y", y);
abort ();
}
}
void
check_all (mpq_ptr x, mpq_ptr y, int want)
{
check_one (x, y, want);
check_one (y, x, want);
mpq_neg (x, x);
mpq_neg (y, y);
check_one (x, y, want);
check_one (y, x, want);
}
#define SET4Z(z, size,l3,l2,l1,l0) \
SIZ(z) = size; PTR(z)[3] = l3; PTR(z)[2] = l2; PTR(z)[1] = l1; PTR(z)[0] = l0
#define SET4(q, nsize,n3,n2,n1,n0, dsize,d3,d2,d1,d0) \
SET4Z (mpq_numref(q), nsize,n3,n2,n1,n0); \
SET4Z (mpq_denref(q), dsize,d3,d2,d1,d0)
/* Exercise various combinations of same and slightly different values. */
void
check_various (void)
{
mpq_t x, y;
mpq_init (x);
mpq_init (y);
mpz_realloc (mpq_numref(x), (mp_size_t) 20);
mpz_realloc (mpq_denref(x), (mp_size_t) 20);
mpz_realloc (mpq_numref(y), (mp_size_t) 20);
mpz_realloc (mpq_denref(y), (mp_size_t) 20);
/* 0 == 0 */
SET4 (x, 0,13,12,11,10, 1,23,22,21,1);
SET4 (y, 0,33,32,31,30, 1,43,42,41,1);
check_all (x, y, 1);
/* 83/99 == 83/99 */
SET4 (x, 1,13,12,11,83, 1,23,22,21,99);
SET4 (y, 1,33,32,31,83, 1,43,42,41,99);
check_all (x, y, 1);
/* 1:2:3:4/5:6:7 == 1:2:3:4/5:6:7 */
SET4 (x, 4,1,2,3,4, 3,88,5,6,7);
SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
check_all (x, y, 1);
/* various individual changes making != */
SET4 (x, 4,1,2,3,667, 3,88,5,6,7);
SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
check_all (x, y, 0);
SET4 (x, 4,1,2,666,4, 3,88,5,6,7);
SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
check_all (x, y, 0);
SET4 (x, 4,1,666,3,4, 3,88,5,6,7);
SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
check_all (x, y, 0);
#if GMP_NUMB_BITS != 62
SET4 (x, 4,667,2,3,4, 3,88,5,6,7);
SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
check_all (x, y, 0);
#endif
SET4 (x, 4,1,2,3,4, 3,88,5,6,667);
SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
check_all (x, y, 0);
SET4 (x, 4,1,2,3,4, 3,88,5,667,7);
SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
check_all (x, y, 0);
SET4 (x, 4,1,2,3,4, 3,88,666,6,7);
SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
check_all (x, y, 0);
SET4 (x, -4,1,2,3,4, 3,88,5,6,7);
SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
check_all (x, y, 0);
SET4 (x, 1,1,2,3,4, 3,88,5,6,7);
SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
check_all (x, y, 0);
mpq_clear (x);
mpq_clear (y);
}
int
main (void)
{
tests_start ();
mp_trace_base = -16;
check_various ();
tests_end ();
exit (0);
}
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