Changeset 45865 in webkit for trunk/JavaScriptCore/wtf/RandomNumber.cpp

Timestamp:

Jul 14, 2009, 1:21:59 PM (16 years ago)

Author:

[email protected]

Message:

2009-07-06 George Staikos <​[email protected]>

Reviewed by Adam Treat.

Authors: George Staikos <​[email protected]>, Joe Mason <​[email protected]>, Makoto Matsumoto <​[email protected]>, Takuji Nishimura

​https://bugs.webkit.org/show_bug.cgi?id=27030
Implement custom RNG for WinCE using Mersenne Twister

• wtf/RandomNumber.cpp: (WTF::randomNumber):
• wtf/RandomNumberSeed.h: (WTF::initializeRandomNumberGenerator):
• wtf/wince/mt19937ar.c: Added. (init_genrand): (init_by_array): (genrand_int32): (genrand_int31): (genrand_real1): (genrand_real2): (genrand_real3): (genrand_res53):

File:

• trunk/JavaScriptCore/wtf/RandomNumber.cpp (modified) (3 diffs)

trunk/JavaScriptCore/wtf/RandomNumber.cpp

@@ -1 +1 @@
 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
- *           (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
+ *           (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * Redistribution and use in source and binary forms, with or without
@@ -34 +34 @@
 #include <stdint.h>
 #include <stdlib.h>
+
+#if PLATFORM(WINCE)
+extern "C" {
+#include "wince/mt19937ar.c"
+}
+#endif
 
 namespace WTF {
@@ -75 +81 @@
     fullRandom &= (1LL << 53) - 1;
     return static_cast<double>(fullRandom)/static_cast<double>(1LL << 53);
+#elif PLATFORM(WINCE)
+    return genrand_res53();
 #else
     uint32_t part1 = rand() & (RAND_MAX - 1);