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                        template <class T> class return_1_t: public std::unary_function<T, T> {
public:
	return_1_t(const T & Ret) : _ret(Ret) {}
	T operator()(T Arg) const { return _ret; }
private:
	T _ret;
};
template <class Arg1, class Arg2> class project1st: public std::binary_function<Arg1, Arg2, Arg1> {
public:
	Arg1 operator()(const Arg1 & X, const Arg2 & Y) { return X; }
};
template <class Arg1, class Arg2> class project2nd: public std::binary_function<Arg1, Arg2, Arg2> {
public:
	Arg2 operator()(const Arg1 & X, const Arg2 & Y) { return Y; }
};
template <class T> class identity: public std::unary_function<T, T> {
public:
	T operator()(const T & Arg) const { return Arg; }
};
template <class To, class From> class static_cast_t: public std::unary_function<To, From> {
public:
	To operator()(From obj) const {	return static_cast<To>(obj); }
};
template <class T> class take_address: public std::unary_function<T&, T*> {
public:
	result_type operator()(argument_type arg) const { return &(arg); }
};
template <class T> class take_const_address: public std::unary_function<const T&, const T*> {
public:
	result_type operator()(argument_type arg) const { return &(arg); }
};
template <class T> class creator: public std::unary_function<void, T*> {
public:
	result_type operator()(void) const { return new T(); }
};
template <class T, class Arg1> class creator_1_par: public std::unary_function<Arg1, T*> {
public:
	result_type operator()(argument_type arg) const { return new T(arg); }
};
template <class T, class Arg1, class Arg2> class creator_2_par: public std::binary_function<Arg1, Arg2, T*> {
public:
	result_type operator()(first_argument_type arg1, second_argument_type arg2) const	{ return new T(arg1, arg2);	}
};
template <class T> class maker: public std::unary_function<void, T> {
public:
	result_type operator()(void) const { return T(); }
};
template <class T, class Arg1> class maker_1_par: public std::unary_function<Arg1, T> {
public:
	result_type operator()(argument_type arg) const { return T(arg); }
};
template <class T, class Arg1, class Arg2> class maker_2_par: public std::binary_function<Arg1, Arg2, T> {
                                     
        
            Вот до чего доводит людей отсутствие частичного применения и лямбд.