Sprout/sprout/memory/pointer_cast.hpp
2014-11-28 16:19:07 +09:00

69 lines
2.2 KiB
C++

/*=============================================================================
Copyright (c) 2011-2014 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef SPROUT_MEMORY_POINTER_CAST_HPP
#define SPROUT_MEMORY_POINTER_CAST_HPP
#include <memory>
#include <sprout/config.hpp>
#include <sprout/utility/dyn_cast.hpp>
#include <sprout/utility/reinter_cast.hpp>
namespace sprout {
//
// static_pointer_cast
// const_pointer_cast
// dynamic_pointer_cast
// reinterpret_pointer_cast
//
template<typename T, typename U>
inline SPROUT_CONSTEXPR T*
static_pointer_cast(U* p) {
return static_cast<T*>(p);
}
template<typename T, typename U>
inline SPROUT_CONSTEXPR T*
const_pointer_cast(U* p) {
return const_cast<T*>(p);
}
template<typename T, typename U>
inline SPROUT_CONSTEXPR T*
dynamic_pointer_cast(U* p) {
return sprout::dyn_cast<T*>(p);
}
template<typename T, typename U>
inline SPROUT_CONSTEXPR T*
reinterpret_pointer_cast(U* p) {
return sprout::reinter_cast<T*>(p);
}
#if !defined(SPROUT_NO_CXX11_SMART_PTR)
template<typename T, typename U>
inline SPROUT_NON_CONSTEXPR std::shared_ptr<T>
static_pointer_cast(std::shared_ptr<U> const& p) {
return std::static_pointer_cast<T>(p);
}
template<typename T, typename U>
inline SPROUT_NON_CONSTEXPR std::shared_ptr<T>
const_pointer_cast(std::shared_ptr<U> const& p) {
return std::const_pointer_cast<T>(p);
}
template<typename T, typename U>
inline SPROUT_NON_CONSTEXPR std::shared_ptr<T>
dynamic_pointer_cast(std::shared_ptr<U> const& p) {
return std::dynamic_pointer_cast<T>(p);
}
template<typename T, typename U>
inline SPROUT_NON_CONSTEXPR std::shared_ptr<T>
reinterpret_pointer_cast(std::shared_ptr<U> const& p) {
typedef typename std::shared_ptr<T>::element_type element_type;
return std::shared_ptr<T>(p, reinterpret_cast<element_type*>(p.get()));
}
#endif
} // namespace sprout
#endif // #ifndef SPROUT_MEMORY_POINTER_CAST_HPP