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author | Jocelyn Turcotte <jocelyn.turcotte@nokia.com> | 2010-04-06 10:36:47 (GMT) |
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committer | Jocelyn Turcotte <jocelyn.turcotte@nokia.com> | 2010-04-06 10:36:47 (GMT) |
commit | bb35b65bbfba82e0dd0ac306d3dab54436cdaff6 (patch) | |
tree | 8174cb262a960ff7b2e4aa8f1aaf154db71d2636 /src/3rdparty/webkit/JavaScriptCore/wtf/StdLibExtras.h | |
parent | 4b27d0d887269583a0f76e922948f8c25e96ab88 (diff) | |
download | Qt-bb35b65bbfba82e0dd0ac306d3dab54436cdaff6.zip Qt-bb35b65bbfba82e0dd0ac306d3dab54436cdaff6.tar.gz Qt-bb35b65bbfba82e0dd0ac306d3dab54436cdaff6.tar.bz2 |
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.h | 13 |
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 |