Move base to DEPS

base/memory/aligned_memory.h

-// 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.
-
-// AlignedMemory is a POD type that gives you a portable way to specify static
-// or local stack data of a given alignment and size. For example, if you need
-// static storage for a class, but you want manual control over when the object
-// is constructed and destructed (you don't want static initialization and
-// destruction), use AlignedMemory:
-//
-//   static AlignedMemory<sizeof(MyClass), ALIGNOF(MyClass)> my_class;
-//
-//   // ... at runtime:
-//   new(my_class.void_data()) MyClass();
-//
-//   // ... use it:
-//   MyClass* mc = my_class.data_as<MyClass>();
-//
-//   // ... later, to destruct my_class:
-//   my_class.data_as<MyClass>()->MyClass::~MyClass();
-//
-// Alternatively, a runtime sized aligned allocation can be created:
-//
-//   float* my_array = static_cast<float*>(AlignedAlloc(size, alignment));
-//
-//   // ... later, to release the memory:
-//   AlignedFree(my_array);
-//
-// Or using scoped_ptr:
-//
-//   scoped_ptr<float, AlignedFreeDeleter> my_array(
-//       static_cast<float*>(AlignedAlloc(size, alignment)));
-
-#ifndef BASE_MEMORY_ALIGNED_MEMORY_H_
-#define BASE_MEMORY_ALIGNED_MEMORY_H_
-
-#include "base/base_export.h"
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-
-#if defined(COMPILER_MSVC)
-#include <malloc.h>
-#else
-#include <stdlib.h>
-#endif
-
-namespace base {
-
-// AlignedMemory is specialized for all supported alignments.
-// Make sure we get a compiler error if someone uses an unsupported alignment.
-template <size_t Size, size_t ByteAlignment>
-struct AlignedMemory {};
-
-#define BASE_DECL_ALIGNED_MEMORY(byte_alignment) \
-    template <size_t Size> \
-    class AlignedMemory<Size, byte_alignment> { \
-     public: \
-      ALIGNAS(byte_alignment) uint8 data_[Size]; \
-      void* void_data() { return static_cast<void*>(data_); } \
-      const void* void_data() const { \
-        return static_cast<const void*>(data_); \
-      } \
-      template<typename Type> \
-      Type* data_as() { return static_cast<Type*>(void_data()); } \
-      template<typename Type> \
-      const Type* data_as() const { \
-        return static_cast<const Type*>(void_data()); \
-      } \
-     private: \
-      void* operator new(size_t); \
-      void operator delete(void*); \
-    }
-
-// Specialization for all alignments is required because MSVC (as of VS 2008)
-// does not understand ALIGNAS(ALIGNOF(Type)) or ALIGNAS(template_param).
-// Greater than 4096 alignment is not supported by some compilers, so 4096 is
-// the maximum specified here.
-BASE_DECL_ALIGNED_MEMORY(1);
-BASE_DECL_ALIGNED_MEMORY(2);
-BASE_DECL_ALIGNED_MEMORY(4);
-BASE_DECL_ALIGNED_MEMORY(8);
-BASE_DECL_ALIGNED_MEMORY(16);
-BASE_DECL_ALIGNED_MEMORY(32);
-BASE_DECL_ALIGNED_MEMORY(64);
-BASE_DECL_ALIGNED_MEMORY(128);
-BASE_DECL_ALIGNED_MEMORY(256);
-BASE_DECL_ALIGNED_MEMORY(512);
-BASE_DECL_ALIGNED_MEMORY(1024);
-BASE_DECL_ALIGNED_MEMORY(2048);
-BASE_DECL_ALIGNED_MEMORY(4096);
-
-#undef BASE_DECL_ALIGNED_MEMORY
-
-BASE_EXPORT void* AlignedAlloc(size_t size, size_t alignment);
-
-inline void AlignedFree(void* ptr) {
-#if defined(COMPILER_MSVC)
-  _aligned_free(ptr);
-#else
-  free(ptr);
-#endif
-}
-
-// Deleter for use with scoped_ptr. E.g., use as
-//   scoped_ptr<Foo, base::AlignedFreeDeleter> foo;
-struct AlignedFreeDeleter {
-  inline void operator()(void* ptr) const {
-    AlignedFree(ptr);
-  }
-};
-
-}  // namespace base
-
-#endif  // BASE_MEMORY_ALIGNED_MEMORY_H_