check_cast< THIS > Struct Template Reference

Helper class for the cast used in the MPL for_each algorithm in the implementation of i_cast. More...

#include <implements.h>

Collaboration diagram for check_cast< THIS >:

[legend]

List of all members.

Public Member Functions
	check_cast (const THIS *_instance, const std::type_info &_tid, void *&_ptr)
template<typename IID >
void	operator() (IID)
Public Attributes
const std::type_info &	target
	type_info for the requested interface.
void *&	ptr
	Pointer to be filled.
const THIS *	instance
	Value of this.

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Detailed Description

template<typename THIS>
struct check_cast< THIS >

Helper class for the cast used in the MPL for_each algorithm in the implementation of i_cast.

Author:

Marco Clemencic

Definition at line 10 of file implements.h.

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Constructor & Destructor Documentation

template<typename THIS >

check_cast< THIS >::check_cast	(	const THIS *	_instance,
		const std::type_info &	_tid,
		void *&	_ptr
	)			[inline]

Definition at line 17 of file implements.h.

00018                                                                            :
00019     target(_tid),
00020     ptr(_ptr),
    instance(_instance){}

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Member Function Documentation

template<typename THIS >

template<typename IID >

void check_cast< THIS >::operator()

(

IID

)

[inline]

Definition at line 23 of file implements.h.

                               {
    if ((!ptr) && (typeid(typename IID::iids::type) == target)) {
      ptr = const_cast<void*>(reinterpret_cast<const void*>(static_cast<const typename IID::iface_type*>(instance)));
    }
  }

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Member Data Documentation

template<typename THIS >

const THIS* check_cast< THIS >::instance

Value of this.

Definition at line 16 of file implements.h.

template<typename THIS >

void*& check_cast< THIS >::ptr

Pointer to be filled.

Definition at line 14 of file implements.h.

template<typename THIS >

const std::type_info& check_cast< THIS >::target

type_info for the requested interface.

Definition at line 12 of file implements.h.

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The documentation for this struct was generated from the following file:

• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r0/GaudiKernel/GaudiKernel/implements.h