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Side by Side Diff: base/atomicops_internals_x86_msvc.h

Issue 1467003002: Switch to static_assert in base/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: / Created 5 years, 1 month ago
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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2006-2008 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 // This file is an internal atomic implementation, use base/atomicops.h instead. 5 // This file is an internal atomic implementation, use base/atomicops.h instead.
6 6
7 #ifndef BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_ 7 #ifndef BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_
8 #define BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_ 8 #define BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_
9 9
10 #include <windows.h> 10 #include <windows.h>
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102 102
103 inline Atomic32 Release_Load(volatile const Atomic32* ptr) { 103 inline Atomic32 Release_Load(volatile const Atomic32* ptr) {
104 MemoryBarrier(); 104 MemoryBarrier();
105 return *ptr; 105 return *ptr;
106 } 106 }
107 107
108 #if defined(_WIN64) 108 #if defined(_WIN64)
109 109
110 // 64-bit low-level operations on 64-bit platform. 110 // 64-bit low-level operations on 64-bit platform.
111 111
112 COMPILE_ASSERT(sizeof(Atomic64) == sizeof(PVOID), atomic_word_is_atomic); 112 static_assert(sizeof(Atomic64) == sizeof(PVOID), "atomic word is atomic");
113 113
114 inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr, 114 inline Atomic64 NoBarrier_CompareAndSwap(volatile Atomic64* ptr,
115 Atomic64 old_value, 115 Atomic64 old_value,
116 Atomic64 new_value) { 116 Atomic64 new_value) {
117 PVOID result = InterlockedCompareExchangePointer( 117 PVOID result = InterlockedCompareExchangePointer(
118 reinterpret_cast<volatile PVOID*>(ptr), 118 reinterpret_cast<volatile PVOID*>(ptr),
119 reinterpret_cast<PVOID>(new_value), reinterpret_cast<PVOID>(old_value)); 119 reinterpret_cast<PVOID>(new_value), reinterpret_cast<PVOID>(old_value));
120 return reinterpret_cast<Atomic64>(result); 120 return reinterpret_cast<Atomic64>(result);
121 } 121 }
122 122
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186 return NoBarrier_CompareAndSwap(ptr, old_value, new_value); 186 return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
187 } 187 }
188 188
189 189
190 #endif // defined(_WIN64) 190 #endif // defined(_WIN64)
191 191
192 } // namespace subtle 192 } // namespace subtle
193 } // namespace base 193 } // namespace base
194 194
195 #endif // BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_ 195 #endif // BASE_ATOMICOPS_INTERNALS_X86_MSVC_H_
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