2011-03-24 Ben Taylor <bentaylor.solx86@gmail.com>

        Reviewed by Darin Adler.

        https://bugs.webkit.org/show_bug.cgi?id=20302
        Correct implementation of signbit on Solaris

        * wtf/MathExtras.h:
        (signbit):

git-svn-id: svn://svn.chromium.org/blink/trunk@81882 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/JavaScriptCore/ChangeLog

+2011-03-24  Ben Taylor  <bentaylor.solx86@gmail.com>
+
+        Reviewed by Darin Adler.
+
+        https://bugs.webkit.org/show_bug.cgi?id=20302
+        Correct implementation of signbit on Solaris
+
+        * wtf/MathExtras.h:
+        (signbit):
+
 2011-03-23  Mark Rowe  <mrowe@apple.com>
 
         Reviewed by Darin Adler.

third_party/WebKit/Source/JavaScriptCore/wtf/MathExtras.h

@@ -90,7 +90,7 @@ inline bool isfinite(double x) { return finite(x) && !isnand(x); }
 inline bool isinf(double x) { return !finite(x) && !isnand(x); }
 #endif
 #ifndef signbit
-inline bool signbit(double x) { return x < 0.0; } // FIXME: Wrong for negative 0.
+inline bool signbit(double x) { return copysign(1.0, x) < 0; }
 #endif
 
 #endif