Re: pass all container elements to member function (for_each and mem_fun_ref)

> class Simple
> {
>
> };
>
> class Holder
> {
>
>      vector<Simple> vec;
>
>      void Do(const Simple& s) const
>      {
>          // does something with s
>      }
>
>      void DoAll()
>      {
>          for_each(vec.begin(), vec.end(), mem_fun_ref(&Holder::Do));
>      }
>
> };
>
> Here is what I get: term does not evaluate to a function taking 1
> arguments


First of all I think you should study access control for C++ (i.e
everything in Holder is currently private).
The way you are using std::mem_fun_ref is wrong. The std::vector vec
contains Simple objects and if you want to use std::mem_fun_ref with
the vec you have to define the method Do inside Simple. So, to fix
your code you must move the method Holder::Do to Simple. (Dont forget
to delete the formal parameter, and also include necessary headers and
namespaces)

HTH Roger Schildmeijer



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