1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/base/compiler_specific.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,77 @@
1.4 +// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#ifndef BASE_COMPILER_SPECIFIC_H_
1.9 +#define BASE_COMPILER_SPECIFIC_H_
1.10 +
1.11 +#include "build/build_config.h"
1.12 +
1.13 +#if defined(COMPILER_MSVC)
1.14 +
1.15 +// Macros for suppressing and disabling warnings on MSVC.
1.16 +//
1.17 +// Warning numbers are enumerated at:
1.18 +// http://msdn.microsoft.com/en-us/library/8x5x43k7(VS.80).aspx
1.19 +//
1.20 +// The warning pragma:
1.21 +// http://msdn.microsoft.com/en-us/library/2c8f766e(VS.80).aspx
1.22 +//
1.23 +// Using __pragma instead of #pragma inside macros:
1.24 +// http://msdn.microsoft.com/en-us/library/d9x1s805.aspx
1.25 +
1.26 +// MSVC_SUPPRESS_WARNING disables warning |n| for the remainder of the line and
1.27 +// for the next line of the source file.
1.28 +#define MSVC_SUPPRESS_WARNING(n) __pragma(warning(suppress:n))
1.29 +
1.30 +// MSVC_PUSH_DISABLE_WARNING pushes |n| onto a stack of warnings to be disabled.
1.31 +// The warning remains disabled until popped by MSVC_POP_WARNING.
1.32 +#define MSVC_PUSH_DISABLE_WARNING(n) __pragma(warning(push)) \
1.33 + __pragma(warning(disable:n))
1.34 +
1.35 +// MSVC_PUSH_WARNING_LEVEL pushes |n| as the global warning level. The level
1.36 +// remains in effect until popped by MSVC_POP_WARNING(). Use 0 to disable all
1.37 +// warnings.
1.38 +#define MSVC_PUSH_WARNING_LEVEL(n) __pragma(warning(push, n))
1.39 +
1.40 +// Pop effects of innermost MSVC_PUSH_* macro.
1.41 +#define MSVC_POP_WARNING() __pragma(warning(pop))
1.42 +
1.43 +#define MSVC_DISABLE_OPTIMIZE() __pragma(optimize("", off))
1.44 +#define MSVC_ENABLE_OPTIMIZE() __pragma(optimize("", on))
1.45 +
1.46 +// Allows |this| to be passed as an argument in constructor initializer lists.
1.47 +// This uses push/pop instead of the seemingly simpler suppress feature to avoid
1.48 +// having the warning be disabled for more than just |code|.
1.49 +//
1.50 +// Example usage:
1.51 +// Foo::Foo() : x(NULL), ALLOW_THIS_IN_INITIALIZER_LIST(y(this)), z(3) {}
1.52 +//
1.53 +// Compiler warning C4355: 'this': used in base member initializer list:
1.54 +// http://msdn.microsoft.com/en-us/library/3c594ae3(VS.80).aspx
1.55 +#define ALLOW_THIS_IN_INITIALIZER_LIST(code) MSVC_PUSH_DISABLE_WARNING(4355) \
1.56 + code \
1.57 + MSVC_POP_WARNING()
1.58 +
1.59 +#else // Not MSVC
1.60 +
1.61 +#define MSVC_SUPPRESS_WARNING(n)
1.62 +#define MSVC_PUSH_DISABLE_WARNING(n)
1.63 +#define MSVC_PUSH_WARNING_LEVEL(n)
1.64 +#define MSVC_POP_WARNING()
1.65 +#define MSVC_DISABLE_OPTIMIZE()
1.66 +#define MSVC_ENABLE_OPTIMIZE()
1.67 +#define ALLOW_THIS_IN_INITIALIZER_LIST(code) code
1.68 +
1.69 +#endif // COMPILER_MSVC
1.70 +
1.71 +
1.72 +#if defined(COMPILER_GCC)
1.73 +#define ALLOW_UNUSED __attribute__((unused))
1.74 +#define WARN_UNUSED_RESULT __attribute__((warn_unused_result))
1.75 +#else // Not GCC
1.76 +#define ALLOW_UNUSED
1.77 +#define WARN_UNUSED_RESULT
1.78 +#endif
1.79 +
1.80 +#endif // BASE_COMPILER_SPECIFIC_H_
