2011-10-08 Bruno Haible <bruno@clisp.org>
+ Tests for module 'atan2f'.
+ * modules/atan2f-tests: New file.
+ * tests/test-atan2f.c: New file.
+
New module 'atan2f'.
* lib/math.in.h (atan2f): New declaration.
* lib/atan2f.c: New file.
--- /dev/null
+/* Test of atan2f() function.
+ Copyright (C) 2010-2011 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/>. */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2010-2011. */
+
+#include <config.h>
+
+#include <math.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (atan2f, float, (float, float));
+
+#include "macros.h"
+
+volatile float x;
+volatile float y;
+float z;
+
+int
+main ()
+{
+ /* A particular value in the first quadrant. */
+ x = 0.6f;
+ y = 0.8f;
+ z = atan2f (y, x);
+ ASSERT (z >= 0.92729515f && z <= 0.9272953f);
+
+ /* A particular value in the second quadrant. */
+ x = -0.6f;
+ y = 0.8f;
+ z = atan2f (y, x);
+ ASSERT (z >= 2.2142974f && z <= 2.2142975f);
+
+ /* A particular value in the third quadrant. */
+ x = -0.6f;
+ y = -0.8f;
+ z = atan2f (y, x);
+ ASSERT (z >= -2.2142975f && z <= -2.2142974f);
+
+ /* A particular value in the fourth quadrant. */
+ x = 0.6f;
+ y = -0.8f;
+ z = atan2f (y, x);
+ ASSERT (z >= -0.9272953f && z <= -0.92729515f);
+
+ return 0;
+}