X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=inline;f=tests%2Ftest-signbit.c;h=e8ea097ce4d4bf000d46237dba4d2fc87b947ad2;hb=23eecb48e39afd0d267d64d40ba6bf97aa865e13;hp=9cc65e3058089ab3180d84e0625612aa3e9b2ad3;hpb=57fdfd3f8ec62b105c53bcdf6f127c35c7fe7391;p=gnulib.git

diff --git a/tests/test-signbit.c b/tests/test-signbit.c
index 9cc65e305..e8ea097ce 100644
--- a/tests/test-signbit.c
+++ b/tests/test-signbit.c
@@ -1,5 +1,5 @@
 /* Test of signbit() substitute.
-   Copyright (C) 2007 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
@@ -20,20 +20,17 @@
 
 #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__); \
-          abort ();							     \
-        }								     \
-    }									     \
-  while (0)
+#include "minus-zero.h"
+#include "infinity.h"
+#include "macros.h"
 
 float zerof = 0.0f;
 double zerod = 0.0;
@@ -49,9 +46,15 @@ test_signbitf ()
   ASSERT (signbit (-2.718f));
   ASSERT (signbit (-2.718e30f));
   ASSERT (signbit (-2.718e-30f));
+  /* Zeros.  */
+  ASSERT (!signbit (0.0f));
+  if (1.0f / minus_zerof < 0)
+    ASSERT (signbit (minus_zerof));
+  else
+    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
@@ -88,9 +91,15 @@ test_signbitd ()
   ASSERT (signbit (-2.718));
   ASSERT (signbit (-2.718e30));
   ASSERT (signbit (-2.718e-30));
+  /* Zeros.  */
+  ASSERT (!signbit (0.0));
+  if (1.0 / minus_zerod < 0)
+    ASSERT (signbit (minus_zerod));
+  else
+    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
@@ -125,9 +134,15 @@ test_signbitl ()
   ASSERT (signbit (-2.718L));
   ASSERT (signbit (-2.718e30L));
   ASSERT (signbit (-2.718e-30L));
+  /* Zeros.  */
+  ASSERT (!signbit (0.0L));
+  if (1.0L / minus_zerol < 0)
+    ASSERT (signbit (minus_zerol));
+  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