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polymorphic_cast, polymorphic_downcast, polymorphic_pointer_cast and polymorphic_pointer_downcast synopsis

namespace boost {

template <class Derived, class Base>
inline Derived polymorphic_cast(Base* x);
// Throws: std::bad_cast if ( dynamic_cast<Derived>(x) == 0 )
// Returns: dynamic_cast<Derived>(x)

template <class Derived, class Base>
inline Derived polymorphic_downcast(Base* x);
// Effects: assert( dynamic_cast<Derived>(x) == x );
// Returns: static_cast<Derived>(x)

template <class Derived, class Base>
inline auto polymorphic_pointer_cast(Base x);
// Throws: std::bad_cast if ( dynamic_pointer_cast<Derived>(x) == 0 )
// Returns: dynamic_pointer_cast<Derived>(x)

template <class Derived, class Base>
inline auto polymorphic_pointer_downcast(Base x);
// Effects: assert( dynamic_pointer_cast<Derived>(x) == x );
// Returns: static_pointer_cast<Derived>(x)

}

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