Hi, newbie here. I'm trying to learn the boost lambda library in simple steps, and am getting an error in the following snippet. Apparently, lambda now only allows format& objects as arguments to cout. This puzzles me because all the documentation I've seen on BLL has examples very much like what I"m using. Has there been a design change? Does anyone know what's going on? Thanks in advance. Max Wilson #include <iostream> #include <stdlib.h> #include <boost/lambda/lambda.hpp> #include <vector> #include <algorithm> using namespace std; using namespace boost::lambda; int main(int argc, char *argv[]) { vector<int> vec; vec.push_back(1); vec.push_back(2); for_each(vec.begin(), vec.end(), cout << _1 << endl); return 0; } #include <iostream> #include <stdlib.h> #include "/users/user2/ugrad/m/mdw45/boost_1_31_0/boost/lambda/lambda.hpp" #include <testIf.h> #include <vector> #include <easylist.hpp> #include <algorithm> using namespace std; using namespace boost::lambda; int main(int argc, char *argv[]) { vector<int> vec; vec.push_back(1); vec.push_back(2); for_each(vec.begin(), vec.end(), cout << _1 << endl); return 0; } -- Sometimes I think decisions through, weigh the consequences, decide it is not a good idea, but blind myself and make it anyway. I do not think this is a good thing to do, but it might be. Humans are endowed with both reason and emotion for a reason. -Tara Greenwood