Tests for module 'cbrtf-ieee'.

* modules/cbrtf-ieee-tests: New file.
* tests/test-cbrtf-ieee.c: New file.
* tests/test-cbrt-ieee.h: New file.

1 files changed, 40 insertions, 0 deletions

diff --git a/tests/test-cbrt-ieee.h b/tests/test-cbrt-ieee.h
new file mode 100644
index 0000000000..b29d930d66
--- /dev/null
+++ b/tests/test-cbrt-ieee.h
@@ -0,0 +1,40 @@
+/* Test of cbrt*() 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.  */
+  ASSERT (ISNAN (CBRT (NAN)));
+
+  /* Signed zero.  */
+  {
+    DOUBLE y = CBRT (L_(0.0));
+    ASSERT (y == L_(0.0));
+    ASSERT (!signbit (y));
+  }
+  {
+    DOUBLE y = CBRT (MINUS_ZERO);
+    ASSERT (y == L_(0.0));
+    ASSERT (!!signbit (y) == !!signbit (MINUS_ZERO));
+  }
+
+  /* Infinity.  */
+  ASSERT (CBRT (INFINITY) == INFINITY);
+  ASSERT (CBRT (- INFINITY) == - INFINITY);
+}