std::mem_fun_t

template< class S, class T > 
class mem_fun_t : public unary_function<T*,S> {
public:
    explicit mem_fun_t(S (T::*p)());
    S operator()(T* p) const;
};

(1)

(until C++17)
(deprecated since C++11)

template< class S, class T > 
class const_mem_fun_t : public unary_function<const T*,S> {
public:
    explicit const_mem_fun_t(S (T::*p)() const);
    S operator()(const T* p) const;
};

(2)

(until C++17)
(deprecated since C++11)

template< class S, class T, class Arg > 
class mem_fun1_t : public binary_function<T*,A,S> {
public:
    explicit mem_fun1_t(S (T::*p)(A));
    S operator()(T* p, A x) const;
};

(2)

(until C++17)
(deprecated since C++11)

template< class S, class T, class A > 
class const_mem_fun1_t : public binary_function<const T*,A,S> {
public:
    explicit const_mem_fun1_t(S (T::*p)(A) const);
    S operator()(const T* p, A x) const;
};

(4)

(until C++17)
(deprecated since C++11)

Wrapper around a member function pointer. The class instance whose member function to call is passed as a pointer to the operator().

1) Wraps a non-const member function with no parameters.

2) Wraps a const member function with no parameters.

3) Wraps a non-const member function with a single parameter.

4) Wraps a const member function with a single parameter.

mem_fun (until C++17)	creates a wrapper from a pointer to member function, callable with a pointer to object (function template)
mem_fun_ref_tmem_fun1_ref_tconst_mem_fun_ref_tconst_mem_fun1_ref_t (until C++17)(until C++17)(until C++17)(until C++17)	wrapper for a pointer to nullary or unary member function, callable with a reference to object (class template)

Links:

http://en.cppreference.com/w/cpp/utility/functional/mem_fun_t

doc_CPP

2025-01-10 15:47:30

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std::mem_fun_t

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