#include <string>

#include <sstream>

#ifdef WIN32

#include <windows.h>

#endif

/////////////////////////////////////

// the 'to_string' function

template< class type>

inline std::string to_string( const type & value)

{

    std::ostringstream streamOut;

    streamOut << value;

    return streamOut.str();

}

struct Point

{

    Point( int nLeft, int nTop)

        : m_nLeft( nLeft), m_nTop( nTop)

    {}

    int m_nLeft;

    int m_nTop;

};

std::ostream & operator<<( std::ostream & streamOut, const Point & value)

{

    streamOut << "(" << value.m_nLeft << ", " << value.m_nTop << ")";

    return streamOut;

}

int main()

{

    std::string strDocName = "doc_test.txt";

    int nWordsCount;

    // ... calculate words count

    nWordsCount = 48;

    // {1}

    // using to_string with an 'int'

    std::string str1 =

        "The " + strDocName + " contains " + to_string( nWordsCount) + " words";

    // on Win32, call the Message box function

#ifdef WIN32

    MessageBox( NULL, str1.c_str(), "", MB_OK);

#endif

    // {2}

    // using to_string with a custom type (Point)

    std::string str2 =

        "You should build a rectangle between " + to_string( Point( 10, 5)) +

        " and " + to_string( Point( 100, 300));

    // on Win32, call the Message box function

#ifdef WIN32

    MessageBox( NULL, str2.c_str(), "", MB_OK);

#endif

    return 0;

}