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Add overloads for std::shared_ptr to pointer casts

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This commit is contained in:
Karolin Varner
2015-12-17 13:47:00 +01:00
parent 2185c4f005
commit 6b787f1cec
4 changed files with 169 additions and 2 deletions
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30
include/boost/pointer_cast.hpp
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@ -42,4 +42,34 @@ inline T* reinterpret_pointer_cast(U *ptr)
} // namespace boost
#if !defined( BOOST_NO_CXX11_SMART_PTR )
#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 );
}
} // namespace boost
#endif // #if !defined( BOOST_NO_CXX11_SMART_PTR )
#endif //BOOST_POINTER_CAST_HPP