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authorJocelyn Turcotte <jocelyn.turcotte@nokia.com>2010-04-06 10:36:47 (GMT)
committerJocelyn Turcotte <jocelyn.turcotte@nokia.com>2010-04-06 10:36:47 (GMT)
commitbb35b65bbfba82e0dd0ac306d3dab54436cdaff6 (patch)
tree8174cb262a960ff7b2e4aa8f1aaf154db71d2636 /src/3rdparty/webkit/JavaScriptCore/wtf/StdLibExtras.h
parent4b27d0d887269583a0f76e922948f8c25e96ab88 (diff)
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Update src/3rdparty/webkit from trunk.
Imported from 839d8709327f925aacb3b6362c06152594def97e in branch qtwebkit-2.0 of repository git://gitorious.org/+qtwebkit-developers/webkit/qtwebkit.git Rubber-stamped-by: Simon Hausmann
Diffstat (limited to 'src/3rdparty/webkit/JavaScriptCore/wtf/StdLibExtras.h')
-rw-r--r--src/3rdparty/webkit/JavaScriptCore/wtf/StdLibExtras.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/3rdparty/webkit/JavaScriptCore/wtf/StdLibExtras.h b/src/3rdparty/webkit/JavaScriptCore/wtf/StdLibExtras.h
index c9b5742..96a929c 100644
--- a/src/3rdparty/webkit/JavaScriptCore/wtf/StdLibExtras.h
+++ b/src/3rdparty/webkit/JavaScriptCore/wtf/StdLibExtras.h
@@ -26,7 +26,6 @@
#ifndef WTF_StdLibExtras_h
#define WTF_StdLibExtras_h
-#include <wtf/Platform.h>
#include <wtf/Assertions.h>
// Use these to declare and define a static local variable (static T;) so that
@@ -48,6 +47,10 @@
// NULL can cause compiler problems, especially in cases of multiple inheritance.
#define OBJECT_OFFSETOF(class, field) (reinterpret_cast<ptrdiff_t>(&(reinterpret_cast<class*>(0x4000)->field)) - 0x4000)
+// STRINGIZE: Can convert any value to quoted string, even expandable macros
+#define STRINGIZE(exp) #exp
+#define STRINGIZE_VALUE_OF(exp) STRINGIZE(exp)
+
namespace WTF {
/*
@@ -65,6 +68,14 @@ namespace WTF {
return u.to;
}
+ // Returns a count of the number of bits set in 'bits'.
+ inline size_t bitCount(unsigned bits)
+ {
+ bits = bits - ((bits >> 1) & 0x55555555);
+ bits = (bits & 0x33333333) + ((bits >> 2) & 0x33333333);
+ return (((bits + (bits >> 4)) & 0xF0F0F0F) * 0x1010101) >> 24;
+ }
+
} // namespace WTF
#endif