-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Sebastian, Thanks for the more detailed reply. I apologize for my earlier response to your first message as it sounded distinctly like one of those pedantic lurkers I run into on the C++ news group from time to time. Usually, when I find one, I simply put them into my TB filters list. As you may have guessed, my question was about how to make a (to me) realistic example of the signals library work. The overly simplistic hello example in the manual is where I stopped, having thought the signals library was truly easy to use. Much to my surprise, when it came time to actually put it to use in my application, I got all kinds of strange seg fault errors. After spending an hour or so I didn't have to spare on figuring out where the problem was emanating from, I'll admit to being a little surprised and frustrated (maybe even a little angry) as the hello example didn't seem to do a good job of warning the user that all but the most trivial examples of that use of the library would work as designed. I suspect like most programmers in my position, time is a luxury we can hardly afford to spare giving every dense manual of a library we are looking at a close read, not to mention slogging through the source code. Previous to my getting more involved with the boost libraries, I have made heavy use of the STL. Except for the generous SGI site and non-free texts on the subject, there are precious few references on the STL, but that's OK as it is relatively easy to read through the well documented source and figure out what is going on. To some extent, that model of support is broken in boost as the level of complexity has increased. Therefore, people like myself are at the mercy of polite, helpful people like yourself who have already had experience with the library or who had a hand in creating it. Sincerely, Evan Carew P.S. For the archives, the attached code is a working copy of the test code I was trying to implement, compliments to Sebastian Redl and Scott Collins http://scottcollins.net/articles/a-deeper-look-at-signals-and-slots.html using namespace std; using namespace boost; class tst_out{ public: boost::signal<void()>timer; ~tst_out(){ cout << "Called del for tst_out" << endl;} }; class tst_out2{ public: void print(){ cout << "test out 2" << endl;} ~tst_out2(){ cout << "Called del for tst_out2" << endl;} }; int main(int argc, char *argv[]) { tst_out tst1; tst_out2 tst2; tst1.timer.connect(boost::bind(&tst_out2::print, &tst2)); tst1.timer(); cout << "exiting program" << endl; return EXIT_SUCCESS; } -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFD5qzQpxCQXwV2bJARAj1+AKDCSHtkkt8TdA6Z3l4OwMAVpTPEYgCeOE+A epo6b9x3BjEoHiVVNoU7S3Y= =3rjg -----END PGP SIGNATURE-----