X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-strtod.c;h=69dd4749e771a4e0071b87833a3eefb46f2d6b85;hb=6184bd1482b08fb6e3076931b73cbf09639509bc;hp=704dc1e36eeda9b87028c5f2a7f16635831467b2;hpb=d98e5eddd4e8bafff4e39da01c6a27ce25466da8;p=gnulib.git

diff --git a/tests/test-strtod.c b/tests/test-strtod.c
index 704dc1e36..69dd4749e 100644
--- a/tests/test-strtod.c
+++ b/tests/test-strtod.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008 Free Software Foundation
+ * Copyright (C) 2008, 2009 Free Software Foundation
  * Written by Eric Blake
  *
  * This program is free software: you can redistribute it and/or modify
@@ -42,8 +42,12 @@
 /* Avoid requiring -lm just for fabs.  */
 #define FABS(d) ((d) < 0.0 ? -(d) : (d))
 
+/* 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;
+
 int
-main ()
+main (void)
 {
   int status = 0;
   /* Subject sequence empty or invalid.  */
@@ -317,7 +321,7 @@ main ()
     errno = 0;
     result = strtod (input, &ptr);
     ASSERT (result == 0.0);
-    ASSERT (!!signbit (result) == !!signbit (-0.0)); /* IRIX 6.5, OSF/1 4.0 */
+    ASSERT (!!signbit (result) == !!signbit (-zero)); /* IRIX 6.5, OSF/1 4.0 */
     ASSERT (ptr == input + 2);
     ASSERT (errno == 0);
   }
@@ -412,7 +416,7 @@ main ()
     errno = 0;
     result = strtod (input, &ptr);
     ASSERT (result == 0.0);
-    ASSERT (!!signbit (result) == !!signbit (-0.0)); /* MacOS X 10.3, FreeBSD 6.2, IRIX 6.5, OSF/1 4.0 */
+    ASSERT (!!signbit (result) == !!signbit (-zero)); /* MacOS X 10.3, FreeBSD 6.2, IRIX 6.5, OSF/1 4.0 */
     ASSERT (ptr == input + 2);          /* glibc-2.3.6, MacOS X 10.3, FreeBSD 6.2 */
     ASSERT (errno == 0);
   }
@@ -537,7 +541,7 @@ main ()
        0 on negative underflow, even though quality of implementation
        demands preserving the sign.  Disable this test until fixed
        glibc is more prevalent.  */
-    ASSERT (!!signbit (result) == !!signbit (-0.0)); /* glibc-2.3.6, mingw */
+    ASSERT (!!signbit (result) == !!signbit (-zero)); /* glibc-2.3.6, mingw */
 #endif
     ASSERT (ptr == input + 10);
     ASSERT (errno == ERANGE);
@@ -906,7 +910,7 @@ main ()
 	errno = 0;
 	result = strtod (input, &ptr);
 	ASSERT (result == 0.0);
-	ASSERT (!!signbit (result) == !!signbit (-0.0)); /* IRIX 6.5, OSF/1 4.0 */
+	ASSERT (!!signbit (result) == !!signbit (-zero)); /* IRIX 6.5, OSF/1 4.0 */
 	ASSERT (ptr == input + m);
 	ASSERT (errno == 0);
       }