X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-floorl.c;h=5bbcaac44da97b1175712ca49787685b3b262ab3;hb=3ac9b4577c78342bdd022b31cf56de2b12f7297b;hp=49cc8c251732603806566075179cc224033ac41f;hpb=4eb59b32a2a687c113f3c0dfc166fc2573acb84f;p=gnulib.git

diff --git a/tests/test-floorl.c b/tests/test-floorl.c
index 49cc8c251..5bbcaac44 100644
--- a/tests/test-floorl.c
+++ b/tests/test-floorl.c
@@ -1,5 +1,5 @@
 /* Test of rounding towards negative infinity.
-   Copyright (C) 2007-2008 Free Software Foundation, Inc.
+   Copyright (C) 2007-2010 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
@@ -20,27 +20,31 @@
 
 #include <math.h>
 
-#include <stdio.h>
-#include <stdlib.h>
+#include "signature.h"
+SIGNATURE_CHECK (floorl, long double, (long double));
+
+#include <float.h>
 
 #include "fpucw.h"
 #include "isnanl-nolibm.h"
+#include "nan.h"
+#include "macros.h"
 
-#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 -0.0L.
-   So we use -zero instead.  */
-long double zero = 0.0L;
+/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
+   So we use minus_zero 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_zero (void)
+{
+  return -LDBL_MIN * LDBL_MIN;
+}
+# define minus_zero compute_minus_zero ()
+#else
+long double minus_zero = -0.0L;
+#endif
 
 int
 main ()
@@ -51,7 +55,7 @@ main ()
 
   /* Zero.  */
   ASSERT (floorl (0.0L) == 0.0L);
-  ASSERT (floorl (-zero) == 0.0L);
+  ASSERT (floorl (minus_zero) == 0.0L);
   /* Positive numbers.  */
   ASSERT (floorl (0.3L) == 0.0L);
   ASSERT (floorl (0.7L) == 0.0L);
@@ -77,7 +81,7 @@ main ()
   ASSERT (floorl (1.0L / 0.0L) == 1.0L / 0.0L);
   ASSERT (floorl (-1.0L / 0.0L) == -1.0L / 0.0L);
   /* NaNs.  */
-  ASSERT (isnanl (floorl (0.0L / 0.0L)));
+  ASSERT (isnanl (floorl (NaNl ())));
 
   return 0;
 }