-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm using program_options in a few programs that I'm doing, and I'd like to clarify what's going on at certain points. vm.count("key") appears to tell us the number of times a flag is specified, but the documentation here: <http://www.boost.org/doc/html/variables_map.html> doesn't seem to say anything about it. Where is it specified? Does abstract_variables_map actually inherit off of std map? Why don't we use !vm["key"].empty() instead? (slightly more verbose, but it's clearer about what it's doing). The vm["term"].as<int>() template seems to combust spectacularly (as in cause a stack dump) when it turns out that vm["term"] doesn't actually exist. This doesn't seem very robust, and according to the documentation, an exception ought to be thrown. Am I just misunderstanding the docs? What is the preferred method determining that no parameters were passed? I'm currently using argc == 1, which seems a bit hacky, and doesn't catch errant parameters. Thanks. This might seem a little pedantic, but I'm trying to do things right. :-) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFf2sIqTO+fYacSNoRAqz5AJ9nBOEz87v8H4HjRB6mM2NSvNSllQCaA+SE s0kcqXiQXy7+ID7ugotbDKc= =NvIj -----END PGP SIGNATURE-----