X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-signbit.c;h=c763157d2c283d05916ef542928003fbf238b076;hb=d15734161645b6488ab0e5e43acd8790b99b0a5d;hp=acca7fd98824413cca2ed88bac7acd877b135338;hpb=441aa3044f43e5572f58c354f01e6bc070acd5c7;p=gnulib.git

diff --git a/tests/test-signbit.c b/tests/test-signbit.c
index acca7fd98..c763157d2 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, 2008, 2009, 2010 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
@@ -20,49 +20,21 @@
 
 #include <math.h>
 
+/* signbit must be a macro.  */
+#ifndef signbit
+# error missing declaration
+#endif
+
 #include <float.h>
 #include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
 
-#define ASSERT(expr) \
-  do                                                                         \
-    {                                                                        \
-      if (!(expr))                                                           \
-        {                                                                    \
-          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
-          fflush (stderr);                                                   \
-          abort ();                                                          \
-        }                                                                    \
-    }                                                                        \
-  while (0)
+#include "minus-zero.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 ()
 {
@@ -75,10 +47,10 @@ 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));
@@ -120,10 +92,10 @@ 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));