0b6a182c
 Hu Chunming
添加无鉴权注册和注销
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//////////////////////////////////////////////////////////////////////////////
//
// (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>
#include <boost/smart_ptr/detail/sp_noexcept.hpp>
namespace boost {
//static_pointer_cast overload for raw pointers
template<class T, class U>
inline T* static_pointer_cast(U *ptr) BOOST_SP_NOEXCEPT
{
return static_cast<T*>(ptr);
}
//dynamic_pointer_cast overload for raw pointers
template<class T, class U>
inline T* dynamic_pointer_cast(U *ptr) BOOST_SP_NOEXCEPT
{
return dynamic_cast<T*>(ptr);
}
//const_pointer_cast overload for raw pointers
template<class T, class U>
inline T* const_pointer_cast(U *ptr) BOOST_SP_NOEXCEPT
{
return const_cast<T*>(ptr);
}
//reinterpret_pointer_cast overload for raw pointers
template<class T, class U>
inline T* reinterpret_pointer_cast(U *ptr) BOOST_SP_NOEXCEPT
{
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_SP_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_SP_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_SP_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_SP_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_SP_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
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