Move files in wtf/ to platform/wtf/ (Part 2).

third_party/WebKit/Source/wtf/Alignment.h

-/*
- *  Copyright (C) 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Library General Public
- *  License as published by the Free Software Foundation; either
- *  version 2 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Library General Public License for more details.
- *
- *  You should have received a copy of the GNU Library General Public License
- *  along with this library; see the file COPYING.LIB.  If not, write to
- *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- *  Boston, MA 02110-1301, USA.
- *
- */
+// Copyright 2017 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.
 
-#ifndef WTF_Alignment_h
-#define WTF_Alignment_h
+#include "platform/wtf/Alignment.h"
 
-#include "wtf/Compiler.h"
-#include <algorithm>
-#include <stdint.h>
-#include <utility>
-
-namespace WTF {
-
-#if COMPILER(GCC)
-#define WTF_ALIGN_OF(type) __alignof__(type)
-#define WTF_ALIGNED(variable_type, variable, n) \
-  variable_type variable __attribute__((__aligned__(n)))
-#elif COMPILER(MSVC)
-#define WTF_ALIGN_OF(type) __alignof(type)
-#define WTF_ALIGNED(variable_type, variable, n) \
-  __declspec(align(n)) variable_type variable
-#else
-#error WTF_ALIGN macros need alignment control.
-#endif
-
-#if COMPILER(GCC)
-typedef char __attribute__((__may_alias__)) AlignedBufferChar;
-#else
-typedef char AlignedBufferChar;
-#endif
-
-template <size_t size, size_t alignment>
-struct AlignedBuffer;
-template <size_t size>
-struct AlignedBuffer<size, 1> {
-  AlignedBufferChar buffer[size];
-};
-template <size_t size>
-struct AlignedBuffer<size, 2> {
-  WTF_ALIGNED(AlignedBufferChar, buffer[size], 2);
-};
-template <size_t size>
-struct AlignedBuffer<size, 4> {
-  WTF_ALIGNED(AlignedBufferChar, buffer[size], 4);
-};
-template <size_t size>
-struct AlignedBuffer<size, 8> {
-  WTF_ALIGNED(AlignedBufferChar, buffer[size], 8);
-};
-template <size_t size>
-struct AlignedBuffer<size, 16> {
-  WTF_ALIGNED(AlignedBufferChar, buffer[size], 16);
-};
-template <size_t size>
-struct AlignedBuffer<size, 32> {
-  WTF_ALIGNED(AlignedBufferChar, buffer[size], 32);
-};
-template <size_t size>
-struct AlignedBuffer<size, 64> {
-  WTF_ALIGNED(AlignedBufferChar, buffer[size], 64);
-};
-
-template <size_t size, size_t alignment>
-void swap(AlignedBuffer<size, alignment>& a,
-          AlignedBuffer<size, alignment>& b) {
-  for (size_t i = 0; i < size; ++i)
-    std::swap(a.buffer[i], b.buffer[i]);
-}
-
-template <uintptr_t mask>
-inline bool isAlignedTo(const void* pointer) {
-  return !(reinterpret_cast<uintptr_t>(pointer) & mask);
-}
-
-}  // namespace WTF
-
-#endif  // WTF_Alignment_h
+// The contents of this header was moved to platform/wtf as part of
+// WTF migration project. See the following post for details:
+// https://groups.google.com/a/chromium.org/d/msg/blink-dev/tLdAZCTlcAA/bYXVT8gYCAAJ