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| author | Jocelyn Turcotte <jocelyn.turcotte@nokia.com> | 2009-10-22 17:50:52 (GMT) |
|---|---|---|
| committer | Jocelyn Turcotte <jocelyn.turcotte@nokia.com> | 2009-10-22 18:34:20 (GMT) |
| commit | 57f1983c164bc8553c6b6aa7ac320f00e5405548 (patch) | |
| tree | 6cfbec33f6e385ceb5cbfa0168f4a9f27f0c8e57 /src/3rdparty/webkit/JavaScriptCore/wtf/RandomNumber.cpp | |
| parent | 5baebfc68dd67def412bcbaa7c61b43d05e6ee42 (diff) | |
| download | Qt-57f1983c164bc8553c6b6aa7ac320f00e5405548.zip Qt-57f1983c164bc8553c6b6aa7ac320f00e5405548.tar.gz Qt-57f1983c164bc8553c6b6aa7ac320f00e5405548.tar.bz2 | |
Updated WebKit from /home/jturcott/dev/webkit/ to qtwebkit-4.6-snapshot-22102009 ( 0639bb8e812c8923287cd5523248ca64fa5f7a50 )
Changes in WebKit/qt since the last update:
Jocelyn: fatal error from script, sha1 in src/3rdparty/webkit/VERSION is bad
Diffstat (limited to 'src/3rdparty/webkit/JavaScriptCore/wtf/RandomNumber.cpp')
| -rw-r--r-- | src/3rdparty/webkit/JavaScriptCore/wtf/RandomNumber.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/JavaScriptCore/wtf/RandomNumber.cpp b/src/3rdparty/webkit/JavaScriptCore/wtf/RandomNumber.cpp index 0e6e208..52fb130 100644 --- a/src/3rdparty/webkit/JavaScriptCore/wtf/RandomNumber.cpp +++ b/src/3rdparty/webkit/JavaScriptCore/wtf/RandomNumber.cpp @@ -82,6 +82,23 @@ double randomNumber() return static_cast<double>(fullRandom)/static_cast<double>(1LL << 53); #elif PLATFORM(WINCE) return genrand_res53(); +#elif PLATFORM(WIN_OS) + uint32_t part1 = rand() & (RAND_MAX - 1); + uint32_t part2 = rand() & (RAND_MAX - 1); + uint32_t part3 = rand() & (RAND_MAX - 1); + uint32_t part4 = rand() & (RAND_MAX - 1); + // rand only provides 15 bits on Win32 + uint64_t fullRandom = part1; + fullRandom <<= 15; + fullRandom |= part2; + fullRandom <<= 15; + fullRandom |= part3; + fullRandom <<= 15; + fullRandom |= part4; + + // Mask off the low 53bits + fullRandom &= (1LL << 53) - 1; + return static_cast<double>(fullRandom)/static_cast<double>(1LL << 53); #else uint32_t part1 = rand() & (RAND_MAX - 1); uint32_t part2 = rand() & (RAND_MAX - 1); |