t-equal.c
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上传日期:2022-08-06
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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 %dn", 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);
- }