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authorDuncan Wilkie <antigravityd@gmail.com>2023-11-18 06:11:09 -0600
committerDuncan Wilkie <antigravityd@gmail.com>2023-11-18 06:11:09 -0600
commit11da511c784eca003deb90c23570f0873954e0de (patch)
treee14fdd3d5d6345956d67e79ae771d0633d28362b /gmp-6.3.0/tests/mpq/t-aors.c
Initial commit.
Diffstat (limited to 'gmp-6.3.0/tests/mpq/t-aors.c')
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diff --git a/gmp-6.3.0/tests/mpq/t-aors.c b/gmp-6.3.0/tests/mpq/t-aors.c
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+/* Test mpq_add and mpq_sub.
+
+Copyright 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU 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 test suite 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 General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_all (mpq_ptr x, mpq_ptr y, mpq_ptr want_add, mpq_ptr want_sub)
+{
+ mpq_t got;
+ int neg_x, neg_y, swap;
+
+ mpq_init (got);
+
+ MPQ_CHECK_FORMAT (want_add);
+ MPQ_CHECK_FORMAT (want_sub);
+ MPQ_CHECK_FORMAT (x);
+ MPQ_CHECK_FORMAT (y);
+
+ for (swap = 0; swap <= 1; swap++)
+ {
+ for (neg_x = 0; neg_x <= 1; neg_x++)
+ {
+ for (neg_y = 0; neg_y <= 1; neg_y++)
+ {
+ mpq_add (got, x, y);
+ MPQ_CHECK_FORMAT (got);
+ if (! mpq_equal (got, want_add))
+ {
+ printf ("mpq_add wrong\n");
+ mpq_trace (" x ", x);
+ mpq_trace (" y ", y);
+ mpq_trace (" got ", got);
+ mpq_trace (" want", want_add);
+ abort ();
+ }
+
+ mpq_sub (got, x, y);
+ MPQ_CHECK_FORMAT (got);
+ if (! mpq_equal (got, want_sub))
+ {
+ printf ("mpq_sub wrong\n");
+ mpq_trace (" x ", x);
+ mpq_trace (" y ", y);
+ mpq_trace (" got ", got);
+ mpq_trace (" want", want_sub);
+ abort ();
+ }
+
+
+ mpq_neg (y, y);
+ mpq_swap (want_add, want_sub);
+ }
+
+ mpq_neg (x, x);
+ mpq_swap (want_add, want_sub);
+ mpq_neg (want_add, want_add);
+ mpq_neg (want_sub, want_sub);
+ }
+
+ mpq_swap (x, y);
+ mpq_neg (want_sub, want_sub);
+ }
+
+ mpq_clear (got);
+}
+
+
+void
+check_data (void)
+{
+ static const struct {
+ const char *x;
+ const char *y;
+ const char *want_add;
+ const char *want_sub;
+
+ } data[] = {
+
+ { "0", "0", "0", "0" },
+ { "1", "0", "1", "1" },
+ { "1", "1", "2", "0" },
+
+ { "1/2", "1/2", "1", "0" },
+ { "5/6", "14/15", "53/30", "-1/10" },
+ };
+
+ mpq_t x, y, want_add, want_sub;
+ int i;
+
+ mpq_init (x);
+ mpq_init (y);
+ mpq_init (want_add);
+ mpq_init (want_sub);
+
+ for (i = 0; i < numberof (data); i++)
+ {
+ mpq_set_str_or_abort (x, data[i].x, 0);
+ mpq_set_str_or_abort (y, data[i].y, 0);
+ mpq_set_str_or_abort (want_add, data[i].want_add, 0);
+ mpq_set_str_or_abort (want_sub, data[i].want_sub, 0);
+
+ check_all (x, y, want_add, want_sub);
+ }
+
+ mpq_clear (x);
+ mpq_clear (y);
+ mpq_clear (want_add);
+ mpq_clear (want_sub);
+}
+
+
+void
+check_rand (void)
+{
+ mpq_t x, y, want_add, want_sub;
+ int i;
+ gmp_randstate_ptr rands = RANDS;
+
+ mpq_init (x);
+ mpq_init (y);
+ mpq_init (want_add);
+ mpq_init (want_sub);
+
+ for (i = 0; i < 500; i++)
+ {
+ mpz_errandomb (mpq_numref(x), rands, 512L);
+ mpz_errandomb_nonzero (mpq_denref(x), rands, 512L);
+ mpq_canonicalize (x);
+
+ mpz_errandomb (mpq_numref(y), rands, 512L);
+ mpz_errandomb_nonzero (mpq_denref(y), rands, 512L);
+ mpq_canonicalize (y);
+
+ refmpq_add (want_add, x, y);
+ refmpq_sub (want_sub, x, y);
+
+ check_all (x, y, want_add, want_sub);
+ }
+
+ mpq_clear (x);
+ mpq_clear (y);
+ mpq_clear (want_add);
+ mpq_clear (want_sub);
+}
+
+
+int
+main (void)
+{
+ tests_start ();
+
+ check_data ();
+ check_rand ();
+
+ tests_end ();
+
+ exit (0);
+}