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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef BASE_COMPILER_SPECIFIC_H_ | 5 #ifndef BASE_COMPILER_SPECIFIC_H_ |
6 #define BASE_COMPILER_SPECIFIC_H_ | 6 #define BASE_COMPILER_SPECIFIC_H_ |
7 | 7 |
8 #include "build/build_config.h" | 8 #include "build/build_config.h" |
9 | 9 |
10 #define typeof(x) __typeof__(x) | |
Nico
2014/10/30 17:02:41
See http://crbug.com/427584 for this – we shouldn'
Fabrice (no longer in Chrome)
2014/10/30 17:32:52
Done.
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11 | |
10 #if defined(COMPILER_MSVC) | 12 #if defined(COMPILER_MSVC) |
11 | 13 |
12 // Macros for suppressing and disabling warnings on MSVC. | 14 // Macros for suppressing and disabling warnings on MSVC. |
13 // | 15 // |
14 // Warning numbers are enumerated at: | 16 // Warning numbers are enumerated at: |
15 // http://msdn.microsoft.com/en-us/library/8x5x43k7(VS.80).aspx | 17 // http://msdn.microsoft.com/en-us/library/8x5x43k7(VS.80).aspx |
16 // | 18 // |
17 // The warning pragma: | 19 // The warning pragma: |
18 // http://msdn.microsoft.com/en-us/library/2c8f766e(VS.80).aspx | 20 // http://msdn.microsoft.com/en-us/library/2c8f766e(VS.80).aspx |
19 // | 21 // |
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192 // Macro for hinting that an expression is likely to be false. | 194 // Macro for hinting that an expression is likely to be false. |
193 #if !defined(UNLIKELY) | 195 #if !defined(UNLIKELY) |
194 #if defined(COMPILER_GCC) | 196 #if defined(COMPILER_GCC) |
195 #define UNLIKELY(x) __builtin_expect(!!(x), 0) | 197 #define UNLIKELY(x) __builtin_expect(!!(x), 0) |
196 #else | 198 #else |
197 #define UNLIKELY(x) (x) | 199 #define UNLIKELY(x) (x) |
198 #endif // defined(COMPILER_GCC) | 200 #endif // defined(COMPILER_GCC) |
199 #endif // !defined(UNLIKELY) | 201 #endif // !defined(UNLIKELY) |
200 | 202 |
201 #endif // BASE_COMPILER_SPECIFIC_H_ | 203 #endif // BASE_COMPILER_SPECIFIC_H_ |
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