Tests for module 'ilogbl'.

* modules/ilogbl-tests: New file.
* tests/test-ilogbl.c: New file.

3 files changed, 90 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 9807df90d1..6c4b75d171 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2012-04-03  Bruno Haible  <bruno@clisp.org>
 
+	Tests for module 'ilogbl'.
+	* modules/ilogbl-tests: New file.
+	* tests/test-ilogbl.c: New file.
+
 	New module 'ilogbl'.
 	* lib/math.in.h (ilogbl): New declaration.
 	* lib/ilogbl.c: New file.
diff --git a/modules/ilogbl-tests b/modules/ilogbl-tests
new file mode 100644
index 0000000000..af350d2878
--- /dev/null
+++ b/modules/ilogbl-tests
@@ -0,0 +1,19 @@
+Files:
+tests/test-ilogbl.c
+tests/test-ilogb.h
+tests/minus-zero.h
+tests/infinity.h
+tests/nan.h
+tests/signature.h
+tests/macros.h
+tests/randoml.c
+
+Depends-on:
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-ilogbl
+check_PROGRAMS += test-ilogbl
+test_ilogbl_SOURCES = test-ilogbl.c randoml.c
+test_ilogbl_LDADD = $(LDADD) @ILOGBL_LIBM@
diff --git a/tests/test-ilogbl.c b/tests/test-ilogbl.c
new file mode 100644
index 0000000000..e54d467283
--- /dev/null
+++ b/tests/test-ilogbl.c
@@ -0,0 +1,67 @@
+/* Test of ilogbl() 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/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2012.  */
+
+#include <config.h>
+
+#include <math.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (ilogbl, int, (long double));
+
+#include <float.h>
+#include <limits.h>
+
+#include "minus-zero.h"
+#include "infinity.h"
+#include "nan.h"
+#include "macros.h"
+
+#undef INFINITY
+#undef NAN
+
+#define DOUBLE long double
+#define VOLATILE
+#define INFINITY Infinityl ()
+#define NAN NaNl ()
+#define L_(literal) literal##L
+#define MINUS_ZERO minus_zerol
+#define MAX_EXP LDBL_MAX_EXP
+#define MIN_EXP LDBL_MIN_EXP
+/* On MIPS IRIX machines, LDBL_MIN_EXP is -1021, but the smallest reliable
+   exponent for 'long double' is -964.  Similarly, on PowerPC machines,
+   LDBL_MIN_EXP is -1021, but the smallest reliable exponent for 'long double'
+   is -968.  For exponents below that, the precision may be truncated to the
+   precision used for 'double'.  */
+#ifdef __sgi
+# define MIN_NORMAL_EXP (LDBL_MIN_EXP + 57)
+#elif defined __ppc || defined __ppc__ || defined __powerpc || defined __powerpc__
+# define MIN_NORMAL_EXP (LDBL_MIN_EXP + 53)
+#else
+# define MIN_NORMAL_EXP LDBL_MIN_EXP
+#endif
+#define ILOGB ilogbl
+#define RANDOM randoml
+#include "test-ilogb.h"
+
+int
+main ()
+{
+  test_function ();
+
+  return 0;
+}