2009-04-20 Ariya Hidayat <ariya.hidayat@nokia.com>

        Build fix for Qt port (after r42646). Not reviewed.

        * wtf/unicode/qt4/UnicodeQt4.h: Added U16_PREV.

git-svn-id: svn://svn.chromium.org/blink/trunk@42669 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/JavaScriptCore/ChangeLog

+2009-04-20  Ariya Hidayat  <ariya.hidayat@nokia.com>
+
+        Build fix for Qt port (after r42646). Not reviewed.
+
+        * wtf/unicode/qt4/UnicodeQt4.h: Added U16_PREV.
+
 2009-04-19  Sam Weinig  <sam@webkit.org>
 
         Reviewed by Darin Adler.

third_party/WebKit/JavaScriptCore/wtf/unicode/qt4/UnicodeQt4.h

@@ -92,6 +92,17 @@ typedef uint32_t UChar32;
     } \
 }
 
+#define U16_PREV(s, start, i, c) { \
+    (c)=(s)[--(i)]; \
+    if(U16_IS_TRAIL(c)) { \
+        uint16_t __c2; \
+        if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
+            --(i); \
+            (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
+        } \
+    } \
+}
+
 #define U_MASK(x) ((uint32_t)1<<(x))
 
 namespace WTF {