interfaceMatch< T > Struct Template Reference

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

#include <implements.h>

Collaboration diagram for interfaceMatch< T >:

List of all members.

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

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Detailed Description

template<typename T>
struct interfaceMatch< T >

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

Author:

Marco Clemencic

Definition at line 11 of file implements.h.

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Constructor & Destructor Documentation

template<typename T>

interfaceMatch< T >::interfaceMatch	(	const T *	_instance,
		const InterfaceID &	_tid,
		void *&	_ptr
	)		[inline]

Definition at line 18 of file implements.h.

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

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Member Function Documentation

template<typename T>

template<typename IID >

void interfaceMatch< T >::operator()

(

IID

)

[inline]

Definition at line 24 of file implements.h.

                               {
    if ((!ptr) && target.versionMatch(IID::interfaceID())) {
      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 T>

const T* interfaceMatch< T >::instance

Value of this.

Definition at line 17 of file implements.h.

template<typename T>

void*& interfaceMatch< T >::ptr

Pointer to be filled.

Definition at line 15 of file implements.h.

template<typename T>

const InterfaceID& interfaceMatch< T >::target

InterfaceID for the requested interface.

Definition at line 13 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_v23r2/GaudiKernel/GaudiKernel/implements.h