of cource, no memory leak. check out the source code of method 'reset'. there is a little trick help release the memory, which is similar with Effective STL: item 17: Use "swap trick" to trim excess capacity good luck ------------------ Original ------------------ From: "Ben"<befung@gmail.com>; Date: Thu, Mar 19, 2009 08:28 AM To: "boost-users"<boost-users@lists.boost.org>; Subject: [Boost-users] share_ptr reset() question Hello, Consider the following: void createSharePtr( boost::shared_ptr<int> value) { value.reset( new int(100)); } main() { boost::shared_ptr<int> y( new int(0)); createSharePtr( y); }; Question: Does the function createSharePtr() cause memory leak? Thanks, Ben _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users