Use of for_each on map elements

Question

I have a map where I\'d like to perform a call on every data type object member function. I yet know how to do this on any sequence but, is it possible to do it on an associativ

Answer 1

Just an example:

template 
class insertIntoVec
{
public:
    insertIntoVec(std::vector& vec_in):m_vec(vec_in)
    {}

    void operator () (const std::pair& rhs)  
    {   
        m_vec.push_back(rhs.second);
    }

private:
    std::vector& m_vec;
};

int main()
{
std::map aMap;
aMap[1] = "test1";
aMap[2] = "test2";
aMap[3] = "test3";
aMap[4] = "test4";

std::vector aVec;

aVec.reserve(aMap.size());
std::for_each(aMap.begin(), aMap.end(),
          insertIntoVec(aVec) 
    );

}