X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-signbit.c;h=e8ea097ce4d4bf000d46237dba4d2fc87b947ad2;hb=5191b3546cfb6c163228c23f214e325ddf60d46f;hp=9add258c85d1de0a80acb747d0276c1b670ad244;hpb=987e5651e8d1c5aa933c9ce88562806af4093702;p=gnulib.git

diff --git a/tests/test-signbit.c b/tests/test-signbit.c
index 9add258c8..e8ea097ce 100644
--- a/tests/test-signbit.c
+++ b/tests/test-signbit.c
@@ -1,5 +1,5 @@
 /* Test of signbit() substitute.
-   Copyright (C) 2007, 2008, 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
@@ -28,34 +28,14 @@
 #include <float.h>
 #include <limits.h>
 
+#include "minus-zero.h"
+#include "infinity.h"
 #include "macros.h"
 
 float zerof = 0.0f;
 double zerod = 0.0;
 long double zerol = 0.0L;
 
-/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0f.
-   So we use -zerof instead.  */
-
-/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
-   So we use -zerod instead.  */
-
-/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
-   So we use minus_zerol 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_zerol (void)
-{
-  return -LDBL_MIN * LDBL_MIN;
-}
-# define minus_zerol compute_minus_zerol ()
-#else
-long double minus_zerol = -0.0L;
-#endif
-
 static void
 test_signbitf ()
 {
@@ -68,13 +48,13 @@ test_signbitf ()
   ASSERT (signbit (-2.718e-30f));
   /* Zeros.  */
   ASSERT (!signbit (0.0f));
-  if (1.0f / -zerof < 0)
-    ASSERT (signbit (-zerof));
+  if (1.0f / minus_zerof < 0)
+    ASSERT (signbit (minus_zerof));
   else
-    ASSERT (!signbit (-zerof));
+    ASSERT (!signbit (minus_zerof));
   /* Infinite values.  */
-  ASSERT (!signbit (1.0f / 0.0f));
-  ASSERT (signbit (-1.0f / 0.0f));
+  ASSERT (!signbit (Infinityf ()));
+  ASSERT (signbit (- Infinityf ()));
   /* Quiet NaN.  */
   (void) signbit (zerof / zerof);
 #if defined FLT_EXPBIT0_WORD && defined FLT_EXPBIT0_BIT
@@ -113,13 +93,13 @@ test_signbitd ()
   ASSERT (signbit (-2.718e-30));
   /* Zeros.  */
   ASSERT (!signbit (0.0));
-  if (1.0 / -zerod < 0)
-    ASSERT (signbit (-zerod));
+  if (1.0 / minus_zerod < 0)
+    ASSERT (signbit (minus_zerod));
   else
-    ASSERT (!signbit (-zerod));
+    ASSERT (!signbit (minus_zerod));
   /* Infinite values.  */
-  ASSERT (!signbit (1.0 / 0.0));
-  ASSERT (signbit (-1.0 / 0.0));
+  ASSERT (!signbit (Infinityd ()));
+  ASSERT (signbit (- Infinityd ()));
   /* Quiet NaN.  */
   (void) signbit (zerod / zerod);
 #if defined DBL_EXPBIT0_WORD && defined DBL_EXPBIT0_BIT
@@ -161,8 +141,8 @@ test_signbitl ()
   else
     ASSERT (!signbit (minus_zerol));
   /* Infinite values.  */
-  ASSERT (!signbit (1.0L / 0.0L));
-  ASSERT (signbit (-1.0L / 0.0L));
+  ASSERT (!signbit (Infinityl ()));
+  ASSERT (signbit (- Infinityl ()));
   /* Quiet NaN.  */
   (void) signbit (zerol / zerol);
 #if defined LDBL_EXPBIT0_WORD && defined LDBL_EXPBIT0_BIT