[DO NOT COMMIT] Use C++11 alignof/alignas everywhere.

base/memory/aligned_memory_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/memory/aligned_memory.h"
 #include "base/memory/scoped_ptr.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #define EXPECT_ALIGNED(ptr, align) \
     EXPECT_EQ(0u, reinterpret_cast<uintptr_t>(ptr) & (align - 1))
 
 namespace {
 
 using base::AlignedMemory;
 
 TEST(AlignedMemoryTest, StaticAlignment) {
   static AlignedMemory<8, 8> raw8;
   static AlignedMemory<8, 16> raw16;
   static AlignedMemory<8, 256> raw256;
   static AlignedMemory<8, 4096> raw4096;
 
-  EXPECT_EQ(8u, ALIGNOF(raw8));
-  EXPECT_EQ(16u, ALIGNOF(raw16));
-  EXPECT_EQ(256u, ALIGNOF(raw256));
-  EXPECT_EQ(4096u, ALIGNOF(raw4096));
+  EXPECT_EQ(8u, ALIGNOF(decltype(raw8)));
+  EXPECT_EQ(16u, ALIGNOF(decltype(raw16)));
+  EXPECT_EQ(256u, ALIGNOF(decltype(raw256)));
+  EXPECT_EQ(4096u, ALIGNOF(decltype(raw4096)));
 
   EXPECT_ALIGNED(raw8.void_data(), 8);
   EXPECT_ALIGNED(raw16.void_data(), 16);
   EXPECT_ALIGNED(raw256.void_data(), 256);
   EXPECT_ALIGNED(raw4096.void_data(), 4096);
 }
 
 TEST(AlignedMemoryTest, StackAlignment) {
   AlignedMemory<8, 8> raw8;
   AlignedMemory<8, 16> raw16;
   AlignedMemory<8, 128> raw128;
 
-  EXPECT_EQ(8u, ALIGNOF(raw8));
-  EXPECT_EQ(16u, ALIGNOF(raw16));
-  EXPECT_EQ(128u, ALIGNOF(raw128));
+  EXPECT_EQ(8u, ALIGNOF(decltype(raw8)));
+  EXPECT_EQ(16u, ALIGNOF(decltype(raw16)));
+  EXPECT_EQ(128u, ALIGNOF(decltype(raw128)));
 
   EXPECT_ALIGNED(raw8.void_data(), 8);
   EXPECT_ALIGNED(raw16.void_data(), 16);
 
   // TODO(ios): __attribute__((aligned(X))) with X >= 128 does not works on
   // the stack when building for arm64 on iOS, http://crbug.com/349003
 #if !(defined(OS_IOS) && defined(ARCH_CPU_ARM64))
   EXPECT_ALIGNED(raw128.void_data(), 128);
 
   // NaCl x86-64 compiler emits non-validating instructions for >128
   // bytes alignment.
   // http://www.chromium.org/nativeclient/design-documents/nacl-sfi-model-on-x86-64-systems
   // TODO(hamaji): Ideally, NaCl compiler for x86-64 should workaround
   // this limitation and this #if should be removed.
   // https://code.google.com/p/nativeclient/issues/detail?id=3463
 #if !(defined(OS_NACL) && defined(ARCH_CPU_X86_64))
   AlignedMemory<8, 256> raw256;
-  EXPECT_EQ(256u, ALIGNOF(raw256));
+  EXPECT_EQ(256u, ALIGNOF(decltype(raw256)));
   EXPECT_ALIGNED(raw256.void_data(), 256);
 
   // TODO(ios): This test hits an armv7 bug in clang. crbug.com/138066
 #if !(defined(OS_IOS) && defined(ARCH_CPU_ARM_FAMILY))
   AlignedMemory<8, 4096> raw4096;
-  EXPECT_EQ(4096u, ALIGNOF(raw4096));
+  EXPECT_EQ(4096u, ALIGNOF(decltype(raw4096)));
   EXPECT_ALIGNED(raw4096.void_data(), 4096);
 #endif  // !(defined(OS_IOS) && defined(ARCH_CPU_ARM_FAMILY))
 #endif  // !(defined(OS_NACL) && defined(ARCH_CPU_X86_64))
 #endif  // !(defined(OS_IOS) && defined(ARCH_CPU_ARM64))
 }
 
 TEST(AlignedMemoryTest, DynamicAllocation) {
   void* p = base::AlignedAlloc(8, 8);
   EXPECT_TRUE(p);
   EXPECT_ALIGNED(p, 8);
@@ skipping 16 matching lines @@
 }
 
 TEST(AlignedMemoryTest, ScopedDynamicAllocation) {
   scoped_ptr<float, base::AlignedFreeDeleter> p(
       static_cast<float*>(base::AlignedAlloc(8, 8)));
   EXPECT_TRUE(p.get());
   EXPECT_ALIGNED(p.get(), 8);
 }
 
 }  // namespace