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Diffstat (limited to 'src/3rdparty/javascriptcore/JavaScriptCore/wtf/StdLibExtras.h')
| -rw-r--r-- | src/3rdparty/javascriptcore/JavaScriptCore/wtf/StdLibExtras.h | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/StdLibExtras.h b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/StdLibExtras.h deleted file mode 100644 index 9dfb969..0000000 --- a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/StdLibExtras.h +++ /dev/null @@ -1,82 +0,0 @@ -/* - * Copyright (C) 2008 Apple Inc. All Rights Reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#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 -// it is leaked so that its destructors are not called at exit. Using this -// macro also allows workarounds a compiler bug present in Apple's version of GCC 4.0.1. -#ifndef DEFINE_STATIC_LOCAL -#if COMPILER(GCC) && defined(__APPLE_CC__) && __GNUC__ == 4 && __GNUC_MINOR__ == 0 && __GNUC_PATCHLEVEL__ == 1 -#define DEFINE_STATIC_LOCAL(type, name, arguments) \ - static type* name##Ptr = new type arguments; \ - type& name = *name##Ptr -#else -#define DEFINE_STATIC_LOCAL(type, name, arguments) \ - static type& name = *new type arguments -#endif -#endif - -// OBJECT_OFFSETOF: Like the C++ offsetof macro, but you can use it with classes. -// The magic number 0x4000 is insignificant. We use it to avoid using NULL, since -// 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 { - - /* - * C++'s idea of a reinterpret_cast lacks sufficient cojones. - */ - template<typename TO, typename FROM> - TO bitwise_cast(FROM from) - { - COMPILE_ASSERT(sizeof(TO) == sizeof(FROM), WTF_bitwise_cast_sizeof_casted_types_is_equal); - union { - FROM from; - TO to; - } u; - u.from = from; - 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 |