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// Copyright 2014 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 MOJO_PUBLIC_CPP_SYSTEM_MACROS_H_
#define MOJO_PUBLIC_CPP_SYSTEM_MACROS_H_
#include "mojo/public/c/system/macros.h"
// Define a set of C++ specific macros.
// Mojo C++ API users can assume that mojo/public/cpp/system/macros.h
// includes mojo/public/c/system/macros.h.
// A macro to disallow the copy constructor and operator= functions.
// This should be used in the private: declarations for a class.
#define MOJO_DISALLOW_COPY_AND_ASSIGN(TypeName) \
TypeName(const TypeName&); \
void operator=(const TypeName&)
// Used to calculate the number of elements in an array.
// (See |arraysize()| in Chromium's base/basictypes.h for more details.)
namespace mojo {
template <typename T, size_t N>
char(&ArraySizeHelper(T(&array)[N]))[N];
#if !defined(_MSC_VER)
template <typename T, size_t N>
char(&ArraySizeHelper(const T(&array)[N]))[N];
#endif
} // namespace mojo
#define MOJO_ARRAYSIZE(array) (sizeof(::mojo::ArraySizeHelper(array)))
// Used to make a type move-only. See Chromium's base/move.h for more
// details. The MoveOnlyTypeForCPP03 typedef is for Chromium's base/callback to
// tell that this type is move-only.
#define MOJO_MOVE_ONLY_TYPE(type) \
private: \
type(type&); \
void operator=(type&); \
\
public: \
type&& Pass() MOJO_WARN_UNUSED_RESULT { return static_cast<type&&>(*this); } \
typedef void MoveOnlyTypeForCPP03; \
\
private:
#endif // MOJO_PUBLIC_CPP_SYSTEM_MACROS_H_
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