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(C++) std::mem_fun

An adapter to be able to use for_each on a method of T stored in a container as T* (compare std::mem_fun_ref, to use for_each on a method of T stored in a container as T ).

Use a container of boost::shared_ptr<T> instead.

Replacing a for loop by algorithms using std::mem_fun

#include <vector>

struct Widget

{

void DoIt() const { /* do it */ }

};

void DoIt(const std::vector<Widget*>& v)

{

const int sz = v.size();

for (int i=0; i!=sz; ++i)

{

v[i]->DoIt();

}

}

#include <vector>

#include <algorithm>

#include <numeric>

struct Widget

{

void DoIt() const { /* do it */ }

};

void DoIt(const std::vector<Widget*>& v)

{

std::for_each(v.begin(),v.end(),std::mem_fun(&Widget::DoIt));

}

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