Hi, Your problem is a basic C++ problem, nothing to do with tuple<>s! Aren't you declaring a function with "tuple<int> t()" ? Thanks, -Shriram. | -----Original Message----- | From: boost-users-bounces@lists.boost.org [mailto:boost-users- | bounces@lists.boost.org] On Behalf Of heroboy | Sent: Saturday, January 22, 2005 8:53 PM | To: boost-users | Subject: [Boost-users] boost::tuple problem | | hello everyone, |     what's the difference between "tuple<int> t;"  | and  " tuple<int> t();" | why | tuple<int> t; | cout<http://lists.boost.org/mailman/listinfo.cgi/boost-users