Hi, Compiling the code below with std::vector goes OK, the std::set variant does not compile: /usr/include/boost/lambda/detail/actions.hpp no matching function for call to ‘boost::lambda::function_adaptor<void (Integer::*)()>::apply(void (Integer::* const&)(), const Integer&)’ /usr/include/boost/lambda/detail/actions.hpp return-statement with a value, in function returning 'void' /usr/include/c++/4.3/bits/stl_tree.h invalid type argument of ‘unary *’ Is this a bug or am I doing something wrong (gcc (Debian 4.3.2-1) 4.3.2 / Boost 1.35) ? #include <iostream> #include <vector> #include <set> #include <boost/lambda/lambda.hpp> #include <boost/lambda/algorithm.hpp> #include <boost/lambda/bind.hpp> struct Integer { Integer(int anInt) : integer(anInt){} bool operator<( const Integer& anInteger) const { return integer < anInteger.integer;} void print(){std::cout << integer << std::endl;} int integer; }; int main(int argc, char* argv[]) { // std::vector<Integer> collection(5,2); std::set<Integer> collection(5,2); // Calling a member function std::for_each(collection.begin(), collection.end(), boost::lambda::bind(&Integer::print, boost::lambda::_1)); } TIA -- Groeten, Joost Kraaijeveld Askesis B.V. Molukkenstraat 14 6524NB Nijmegen tel: 024-3888063 / 06-51855277 fax: 024-3608416 web: www.askesis.nl