std::mem_fun
From cppreference.com
< cpp | utility | functional
| Defined in header
<functional>
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| template< class Res, class T >
std::mem_fun_t<Res,T> mem_fun( Res (T::*f)() ); |
(1) | (deprecated) |
| template< class Res, class T >
std::const_mem_fun_t<Res,T> mem_fun( Res (T::*f)() ); |
(1) | (deprecated) |
| template< class Res, class T, class Arg >
std::mem_fun1_t<Res,T,Arg> mem_fun( Res (T::*f)(Arg) ); |
(2) | (deprecated) |
| template< class Res, class T, class Arg >
std::const_mem_fun1_t<Res,T,Arg> mem_fun( S (T::*f)(Arg) ); |
(2) | (deprecated) |
Creates a member function wrapper object, deducing the target type from the template arguments. The wrapper object expects a pointer to an object of type T as the first parameter to its operator().
1) Effectively calls std::mem_fun_t<S,T>(f) or std::const_mem_fun_t<S,T>(f).
2) Effectively calls std::mem_fun1_t<S,T>(f) or std::const_mem_fun1_t<S,T>(f).
This function and the related types are deprecated as of C++11 in favor of the more general std::function and std::bind, both of which create callable adapter-compatible function objects from plain functions.
Contents |
[edit] Parameters
| f | - | pointer to a member function to create a wrapper for |
[edit] Return value
A function object wrapping f.
[edit] Exceptions
(none)
[edit] Notes
The difference between std::mem_fun and std::mem_fun_ref is that the former produces an function wrapper that expects a pointer to an object, whereas the latter -- a reference.
[edit] Example
| This section is incomplete Reason: no example |
[edit] See also
| (deprecated)
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creates a wrapper from a pointer to member function, callable with a reference to object (function template) |