gettimeofday: port recent C++ fix to Emacs

[gnulib.git] / tests / test-roundl.c

diff --git a/tests/test-roundl.c b/tests/test-roundl.c
index 7b3e200..01fce08 100644 (file)
--- a/tests/test-roundl.c
+++ b/tests/test-roundl.c
@@ -1,5 +1,5 @@
 /* Test of rounding to nearest, breaking ties away from zero.
-   Copyright (C) 2007-2009 Free Software Foundation, Inc.
+   Copyright (C) 2007-2013 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
@@ -12,8 +12,7 @@
    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, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Ben Pfaff <blp@gnu.org>, 2007.
    Based heavily on Bruno Haible's test-truncl.c. */
@@ -29,25 +28,11 @@ SIGNATURE_CHECK (roundl, long double, (long double));
 
 #include "fpucw.h"
 #include "isnanl-nolibm.h"
+#include "minus-zero.h"
+#include "infinity.h"
 #include "nan.h"
 #include "macros.h"
 
-/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
-   So we use minus_zero instead.
-   IRIX cc can't put -0.0L into .data, but can compute at runtime.
-   Note that the expression -LDBL_MIN * LDBL_MIN does not work on other
-   platforms, such as when cross-compiling to PowerPC on MacOS X 10.5.  */
-#if defined __hpux || defined __sgi
-static long double
-compute_minus_zero (void)
-{
-  return -LDBL_MIN * LDBL_MIN;
-}
-# define minus_zero compute_minus_zero ()
-#else
-long double minus_zero = -0.0L;
-#endif
-
 int
 main ()
 {
@@ -57,7 +42,7 @@ main ()
 
   /* Zero.  */
   ASSERT (roundl (0.0L) == 0.0L);
-  ASSERT (roundl (minus_zero) == 0.0L);
+  ASSERT (roundl (minus_zerol) == 0.0L);
   /* Positive numbers.  */
   ASSERT (roundl (0.3L) == 0.0L);
   ASSERT (roundl (0.5L) == 1.0L);
@@ -85,8 +70,8 @@ main ()
   ASSERT (roundl (-65536.001L) == -65536.0L);
   ASSERT (roundl (-2.341e31L) == -2.341e31L);
   /* Infinite numbers.  */
-  ASSERT (roundl (1.0 / 0.0L) == 1.0 / 0.0L);
-  ASSERT (roundl (-1.0 / 0.0L) == -1.0 / 0.0L);
+  ASSERT (roundl (Infinityl ()) == Infinityl ());
+  ASSERT (roundl (- Infinityl ()) == - Infinityl ());
   /* NaNs.  */
   ASSERT (isnanl (roundl (NaNl ())));