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shibbo
43 lines
868 B
C++
43 lines
868 B
C++
#ifndef FUNCTIONAL_H
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#define FUNCTIONAL_H
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template<class Arg, class Result>
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struct unary_function {
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typedef Arg argument_type;
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typedef Result result_type;
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};
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template<class Arg1, class Arg2, class Result>
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struct binary_function {
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typedef Arg1 first_argument_type;
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typedef Arg2 second_argument_type;
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typedef Result result_type;
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};
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template<class S, class T>
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class mem_fun_t : public unary_function<T *, S> {
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public:
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explicit mem_fun_t(S (T::*mf)());
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S operator()(T *p) const;
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private:
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S (T::*mf_)();
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};
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template <class S, class T>
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inline mem_fun_t<S, T>::mem_fun_t(S (T::*mf)()) : mf_(mf) {
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}
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template <class S, class T>
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inline S mem_fun_t<S, T>::operator()(T *p) const {
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return (p->*mf_)();
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}
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template<class S, class T>
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inline mem_fun_t<S, T> mem_func(S (T::*f)()) {
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return mem_fun_t<S, T>(f);
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}
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#endif // FUNCTIONAL_H
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