Fancy Log

void Log( const std::string& str )
{
    std::cout << str;
}

// http://en.wikipedia.org/wiki/Variadic_templates
template< typename T, typename... Args >
void Log( const std::string& str, T value, Args... args )
{
    for ( auto it = str.begin(); it != str.end(); ++it )
    {
        size_t dist = std::distance( str.begin(), it );

        char cc = ( * it );
        if ( dist >= str.size() - 1 )
        {
            std::cout << cc;
            break;
        }

        char nc = ( * ( it + 1 ) );
        if ( cc == '%' and nc != '%' )
        {
            std::cout << value;
            Log( str.substr( dist + 2 ), args... );
            return;
        }

        std::cout << cc;
    }
}