Support for MSVC compiler: Avoid division by a literal 0.

[gnulib.git] / tests / test-roundf1.c

diff --git a/tests/test-roundf1.c b/tests/test-roundf1.c
index 354dcf0..8413e82 100644 (file)
--- a/tests/test-roundf1.c
+++ b/tests/test-roundf1.c
@@ -1,5 +1,5 @@
 /* Test of rounding to nearest, breaking ties away from zero.
-   Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+   Copyright (C) 2007-2011 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
@@ -27,6 +27,7 @@ SIGNATURE_CHECK (roundf, float, (float));
 
 #include "isnanf-nolibm.h"
 #include "minus-zero.h"
+#include "infinity.h"
 #include "nan.h"
 #include "macros.h"
 
@@ -35,9 +36,7 @@ main ()
 {
   /* Zero.  */
   ASSERT (roundf (0.0f) == 0.0f);
-  ASSERT (!signbit (roundf (0.0f)));
   ASSERT (roundf (minus_zerof) == 0.0f);
-  ASSERT (!!signbit (minus_zerof) == !!signbit (roundf (minus_zerof)));
   /* Positive numbers.  */
   ASSERT (roundf (0.3f) == 0.0f);
   ASSERT (roundf (0.5f) == 1.0f);
@@ -65,8 +64,8 @@ main ()
   ASSERT (roundf (-65536.01f) == -65536.0f);
   ASSERT (roundf (-2.341e31f) == -2.341e31f);
   /* Infinite numbers.  */
-  ASSERT (roundf (1.0 / 0.0f) == 1.0 / 0.0f);
-  ASSERT (roundf (-1.0 / 0.0f) == -1.0 / 0.0f);
+  ASSERT (roundf (Infinityf ()) == Infinityf ());
+  ASSERT (roundf (- Infinityf ()) == - Infinityf ());
   /* NaNs.  */
   ASSERT (isnanf (roundf (NaNf ())));