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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 #include <stdint.h> |
| 6 |
| 5 #include "base/at_exit.h" | 7 #include "base/at_exit.h" |
| 6 #include "base/memory/singleton.h" | 8 #include "base/memory/singleton.h" |
| 7 #include "testing/gtest/include/gtest/gtest.h" | 9 #include "testing/gtest/include/gtest/gtest.h" |
| 8 | 10 |
| 9 namespace base { | 11 namespace base { |
| 10 namespace { | 12 namespace { |
| 11 | 13 |
| 12 static_assert(DefaultSingletonTraits<int>::kRegisterAtExit == true, | 14 static_assert(DefaultSingletonTraits<int>::kRegisterAtExit == true, |
| 13 "object must be deleted on process exit"); | 15 "object must be deleted on process exit"); |
| 14 | 16 |
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| 265 | 267 |
| 266 #define EXPECT_ALIGNED(ptr, align) \ | 268 #define EXPECT_ALIGNED(ptr, align) \ |
| 267 EXPECT_EQ(0u, reinterpret_cast<uintptr_t>(ptr) & (align - 1)) | 269 EXPECT_EQ(0u, reinterpret_cast<uintptr_t>(ptr) & (align - 1)) |
| 268 | 270 |
| 269 TEST_F(SingletonTest, Alignment) { | 271 TEST_F(SingletonTest, Alignment) { |
| 270 using base::AlignedMemory; | 272 using base::AlignedMemory; |
| 271 | 273 |
| 272 // Create some static singletons with increasing sizes and alignment | 274 // Create some static singletons with increasing sizes and alignment |
| 273 // requirements. By ordering this way, the linker will need to do some work to | 275 // requirements. By ordering this way, the linker will need to do some work to |
| 274 // ensure proper alignment of the static data. | 276 // ensure proper alignment of the static data. |
| 275 AlignedTestSingleton<int32>* align4 = | 277 AlignedTestSingleton<int32_t>* align4 = |
| 276 AlignedTestSingleton<int32>::GetInstance(); | 278 AlignedTestSingleton<int32_t>::GetInstance(); |
| 277 AlignedTestSingleton<AlignedMemory<32, 32> >* align32 = | 279 AlignedTestSingleton<AlignedMemory<32, 32> >* align32 = |
| 278 AlignedTestSingleton<AlignedMemory<32, 32> >::GetInstance(); | 280 AlignedTestSingleton<AlignedMemory<32, 32> >::GetInstance(); |
| 279 AlignedTestSingleton<AlignedMemory<128, 128> >* align128 = | 281 AlignedTestSingleton<AlignedMemory<128, 128> >* align128 = |
| 280 AlignedTestSingleton<AlignedMemory<128, 128> >::GetInstance(); | 282 AlignedTestSingleton<AlignedMemory<128, 128> >::GetInstance(); |
| 281 AlignedTestSingleton<AlignedMemory<4096, 4096> >* align4096 = | 283 AlignedTestSingleton<AlignedMemory<4096, 4096> >* align4096 = |
| 282 AlignedTestSingleton<AlignedMemory<4096, 4096> >::GetInstance(); | 284 AlignedTestSingleton<AlignedMemory<4096, 4096> >::GetInstance(); |
| 283 | 285 |
| 284 EXPECT_ALIGNED(align4, 4); | 286 EXPECT_ALIGNED(align4, 4); |
| 285 EXPECT_ALIGNED(align32, 32); | 287 EXPECT_ALIGNED(align32, 32); |
| 286 EXPECT_ALIGNED(align128, 128); | 288 EXPECT_ALIGNED(align128, 128); |
| 287 EXPECT_ALIGNED(align4096, 4096); | 289 EXPECT_ALIGNED(align4096, 4096); |
| 288 } | 290 } |
| 289 | 291 |
| 290 } // namespace | 292 } // namespace |
| 291 } // namespace base | 293 } // namespace base |
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