C / C++ / MFC

#include <map>
#include <algorithm>
typedef map<char,int> mymap; 
 
struct TotalIt
{
    void operator()( mymap::value_type elt ) // same as "pair<const char,int> elt"
    {
        m_total += elt.second;
    }
 
    int m_total;
    TotalIt() : m_total(0) { }
};
 
int main()
{
mymap M;
 
    M['a'] = 1;
    M['b'] = 2;
    M['c'] = 3;
    M['d'] = 4;
    M['e'] = 5;
    
    for_each ( M.begin(), M.end(), TotalIt() );
}

#include <iostream>
#include <map>
#include <iterator>
#include <numeric>

template <typename I> class Pair2ndIterator : public I
{
public :
    Pair2ndIterator ( I i ) : I ( i )
    {
    }
    typename I::value_type::second_type& operator* ()
    {
        return (I::operator*()).second ;
    }
} ;

template <typename I> Pair2ndIterator<I> MakePair2ndIterator ( I it )
{
    return Pair2ndIterator<I> ( it ) ;
}

int main()
{
    std::map<char, int> mymap ;
    mymap.insert ( std::make_pair ( 'a', 10 )) ;
    mymap.insert ( std::make_pair ( 'b', 11 )) ;
    mymap.insert ( std::make_pair ( 'c', 12 )) ;
    mymap.insert ( std::make_pair ( 'd', 13 )) ;
    mymap.insert ( std::make_pair ( 'e', 14 )) ;

    std::cout << "Accumulate ( mymap ) = " <<
        std::accumulate ( MakePair2ndIterator ( mymap.begin ()),
        MakePair2ndIterator ( mymap.end ()), 0 ) ;

    return 0;
}

SetFilePointer ( hFile, 0, NULL, FILE_END );

SetFilePointer( hFile, // handle of file<br />
		0,  // number of bytes to move file pointer<br />
		NULL, // pointer to high-order DWORD of distance to move<br />
		FILE_END);// how to move