openat: test for fstatat (..., 0) bug

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

diff --git a/tests/test-frexp.c b/tests/test-frexp.c
index 6b285c9..4ed24d2 100644 (file)
--- a/tests/test-frexp.c
+++ b/tests/test-frexp.c
@@ -1,5 +1,5 @@
 /* Test of splitting a double into fraction and mantissa.
-   Copyright (C) 2007-2009 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
@@ -24,33 +24,17 @@
 SIGNATURE_CHECK (frexp, double, (double, int *));
 
 #include <float.h>
-#include <stdio.h>
-#include <stdlib.h>
 
 #include "isnand-nolibm.h"
+#include "minus-zero.h"
 #include "nan.h"
+#include "macros.h"
 
 /* Avoid some warnings from "gcc -Wshadow".
    This file doesn't use the exp() function.  */
 #undef exp
 #define exp exponent
 
-#define ASSERT(expr) \
-  do                                                                         \
-    {                                                                        \
-      if (!(expr))                                                           \
-        {                                                                    \
-          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
-          fflush (stderr);                                                   \
-          abort ();                                                          \
-        }                                                                    \
-    }                                                                        \
-  while (0)
-
-/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
-   So we use -zero instead.  */
-double zero = 0.0;
-
 static double
 my_ldexp (double x, int d)
 {
@@ -109,7 +93,7 @@ main ()
   { /* Negative zero.  */
     int exp = -9999;
     double mantissa;
-    x = -zero;
+    x = minus_zerod;
     mantissa = frexp (x, &exp);
     ASSERT (exp == 0);
     ASSERT (mantissa == x);