Hi AllI started playing with boost::lambda and I need some help or some clarification about itor some hint to better understanding how does it work. I have this piece of code using namespace boost::lambda;using boost::lambda::var; int main(int argc, char** argv) { std::vector< int > myList; myList.push_back(100); myList.push_back(200); int interval = 20; std::for_each( myList.begin(), myList.end(), ( std::cout << "value: " << _1 << "\n", std::cout << "interval: " << var( interval ) << "\n", var( interval )++ ));} I understood that writing a lambda expression would be a substitutefor writing a functor. I expected the following result value: 100interval: 20value: 200interval: 21 Instead I had the following intervalfirst value: 1002020021 Why the strings "interval" and "first" are not written for each value and how can I achieve this?Kind RegardsMn _________________________________________________________________ Più di 30 Web Radio: le trovi su Messenger http://www.messenger.it/radioMessenger.aspx