2012-02-26 Bruno Haible <bruno@clisp.org>
+ Tests for module 'modff-ieee'.
+ * modules/modff-ieee-tests: New file.
+ * tests/test-modff-ieee.c: New file.
+ * tests/test-modf-ieee.h: New file.
+
New module 'modff-ieee'.
* modules/modff-ieee: New file.
--- /dev/null
+/* Test of modf*() function family.
+ Copyright (C) 2012 Free Software Foundation, Inc.
+
+ This program 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.
+
+ This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
+
+static void
+test_function (void)
+{
+ /* [MX] shaded specification in POSIX. */
+
+ /* NaN. */
+ {
+ DOUBLE integer_part = -9999;
+ DOUBLE fractional_part = MODF (NAN, &integer_part);
+ ASSERT (ISNAN (integer_part));
+ ASSERT (ISNAN (fractional_part));
+ }
+
+ /* Infinity. */
+ {
+ DOUBLE integer_part = -9999;
+ DOUBLE fractional_part = MODF (INFINITY, &integer_part);
+ ASSERT (integer_part == INFINITY);
+ ASSERT (fractional_part == L_(0.0));
+ ASSERT (!signbit (fractional_part));
+ }
+ {
+ DOUBLE integer_part = -9999;
+ DOUBLE fractional_part = MODF (- INFINITY, &integer_part);
+ ASSERT (integer_part == - INFINITY);
+ ASSERT (fractional_part == L_(0.0));
+ ASSERT (!!signbit (fractional_part) == !!signbit (MINUS_ZERO));
+ }
+}
--- /dev/null
+/* Test of modff() function.
+ Copyright (C) 2012 Free Software Foundation, Inc.
+
+ This program 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.
+
+ This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+#include <math.h>
+
+#include "isnanf-nolibm.h"
+#include "minus-zero.h"
+#include "infinity.h"
+#include "nan.h"
+#include "macros.h"
+
+#undef INFINITY
+#undef NAN
+
+#define DOUBLE float
+#define ISNAN isnanf
+#define INFINITY Infinityf ()
+#define NAN NaNf ()
+#define L_(literal) literal##f
+#define MINUS_ZERO minus_zerof
+#define MODF modff
+#include "test-modf-ieee.h"
+
+int
+main ()
+{
+ test_function ();
+
+ return 0;
+}