xxpmfcaller

C语言库函数的原型,有用的拿去

// xxpmfcaller TR1 internal header
// NOTE: no include guard

#define _NAME _CLASS_NAME(_Pmf_caller)

 #if _NARGS != 0
template<class _Ty>
	class reference_wrapper;

template<class _Ret,
	class _Arg0>
	struct _NAME
	{	// bind object and pointer to member function
	template<class _Ty>
		static _Ty& _Unwrap(_Ty& _Val)
		{	// remove any wrapper
		return (_Val);
		}

	template<class _Ty>
		static _Ty& _Unwrap(reference_wrapper<_Ty>& _Val)
		{	// remove any wrapper
		return (_Val.get());
		}

	//	call pointer to member function
	template<class _Pmf,
		_CLASS_FARG0>
		static _Ret _Call_pmf(
			const volatile typename _Remove_reference<_Arg0>::_Type *,
			_Pmf _Pm, _FARG0_F0_REF)
		{	// call through object reference
		return ((_Fx0.*_Pm)(_F1_F2));
		}

	template<class _Pmf,
		_CLASS_FARG0>
		static _Ret _Call_pmf(
			const volatile void *,
			_Pmf _Pm, _FARG0_F0_REF)
		{	// call through pointer or smart pointer
		return (((*_Fx0).*_Pm)(_F1_F2));
		}

	// apply pmf through reference, pointer, smart pointer,
	// or reference_wrapper
	template<class _Pmf,
		_CLASS_FARG0>
		static _Ret _Apply_pmf(_Pmf _Pm, _FARG0_F0_REF)
		{	// apply through reference, pointer, etc.
		return (_Call_pmf<_Pmf>(
			&_Unwrap(_Fx0), _Pm, _Unwrap(_Fx0) _C_F1_F2));
		}
	};
 #endif /* _NARGS != 0 */

#undef _NAME

/*
 * Copyright (c) 1992-2009 by P.J. Plauger.  ALL RIGHTS RESERVED.
 * Consult your license regarding permissions and restrictions.
V5.20:0009 */