mirror of
https://github.com/ecency/ecency-mobile.git
synced 2024-12-19 11:21:41 +03:00
122 lines
3.6 KiB
C++
122 lines
3.6 KiB
C++
//////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// (C) Copyright Ion Gaztanaga 2005.
|
|
// 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 BOOST_POINTER_CAST_HPP
|
|
#define BOOST_POINTER_CAST_HPP
|
|
|
|
#include <boost/config.hpp>
|
|
|
|
namespace boost {
|
|
|
|
//static_pointer_cast overload for raw pointers
|
|
template<class T, class U>
|
|
inline T* static_pointer_cast(U *ptr)
|
|
{
|
|
return static_cast<T*>(ptr);
|
|
}
|
|
|
|
//dynamic_pointer_cast overload for raw pointers
|
|
template<class T, class U>
|
|
inline T* dynamic_pointer_cast(U *ptr)
|
|
{
|
|
return dynamic_cast<T*>(ptr);
|
|
}
|
|
|
|
//const_pointer_cast overload for raw pointers
|
|
template<class T, class U>
|
|
inline T* const_pointer_cast(U *ptr)
|
|
{
|
|
return const_cast<T*>(ptr);
|
|
}
|
|
|
|
//reinterpret_pointer_cast overload for raw pointers
|
|
template<class T, class U>
|
|
inline T* reinterpret_pointer_cast(U *ptr)
|
|
{
|
|
return reinterpret_cast<T*>(ptr);
|
|
}
|
|
|
|
} // namespace boost
|
|
|
|
#if !defined( BOOST_NO_CXX11_SMART_PTR )
|
|
|
|
#include <boost/type_traits/has_virtual_destructor.hpp>
|
|
#include <boost/static_assert.hpp>
|
|
#include <memory>
|
|
|
|
namespace boost {
|
|
|
|
//static_pointer_cast overload for std::shared_ptr
|
|
using std::static_pointer_cast;
|
|
|
|
//dynamic_pointer_cast overload for std::shared_ptr
|
|
using std::dynamic_pointer_cast;
|
|
|
|
//const_pointer_cast overload for std::shared_ptr
|
|
using std::const_pointer_cast;
|
|
|
|
//reinterpret_pointer_cast overload for std::shared_ptr
|
|
template<class T, class U> std::shared_ptr<T> reinterpret_pointer_cast(const std::shared_ptr<U> & r ) BOOST_NOEXCEPT
|
|
{
|
|
(void) reinterpret_cast< T* >( static_cast< U* >( 0 ) );
|
|
|
|
typedef typename std::shared_ptr<T>::element_type E;
|
|
|
|
E * p = reinterpret_cast< E* >( r.get() );
|
|
return std::shared_ptr<T>( r, p );
|
|
}
|
|
|
|
//static_pointer_cast overload for std::unique_ptr
|
|
template<class T, class U> std::unique_ptr<T> static_pointer_cast( std::unique_ptr<U> && r ) BOOST_NOEXCEPT
|
|
{
|
|
(void) static_cast< T* >( static_cast< U* >( 0 ) );
|
|
|
|
typedef typename std::unique_ptr<T>::element_type E;
|
|
|
|
return std::unique_ptr<T>( static_cast<E*>( r.release() ) );
|
|
}
|
|
|
|
//dynamic_pointer_cast overload for std::unique_ptr
|
|
template<class T, class U> std::unique_ptr<T> dynamic_pointer_cast( std::unique_ptr<U> && r ) BOOST_NOEXCEPT
|
|
{
|
|
(void) dynamic_cast< T* >( static_cast< U* >( 0 ) );
|
|
|
|
BOOST_STATIC_ASSERT_MSG( boost::has_virtual_destructor<T>::value, "The target of dynamic_pointer_cast must have a virtual destructor." );
|
|
|
|
T * p = dynamic_cast<T*>( r.get() );
|
|
if( p ) r.release();
|
|
return std::unique_ptr<T>( p );
|
|
}
|
|
|
|
//const_pointer_cast overload for std::unique_ptr
|
|
template<class T, class U> std::unique_ptr<T> const_pointer_cast( std::unique_ptr<U> && r ) BOOST_NOEXCEPT
|
|
{
|
|
(void) const_cast< T* >( static_cast< U* >( 0 ) );
|
|
|
|
typedef typename std::unique_ptr<T>::element_type E;
|
|
|
|
return std::unique_ptr<T>( const_cast<E*>( r.release() ) );
|
|
}
|
|
|
|
//reinterpret_pointer_cast overload for std::unique_ptr
|
|
template<class T, class U> std::unique_ptr<T> reinterpret_pointer_cast( std::unique_ptr<U> && r ) BOOST_NOEXCEPT
|
|
{
|
|
(void) reinterpret_cast< T* >( static_cast< U* >( 0 ) );
|
|
|
|
typedef typename std::unique_ptr<T>::element_type E;
|
|
|
|
return std::unique_ptr<T>( reinterpret_cast<E*>( r.release() ) );
|
|
}
|
|
|
|
} // namespace boost
|
|
|
|
#endif // #if !defined( BOOST_NO_CXX11_SMART_PTR )
|
|
|
|
#endif //BOOST_POINTER_CAST_HPP
|