Re: [Boost-users] property map: does a given key exist?

Irek Szczesniak wrote:

In nutshell: how can I check whether a property map has some given key?

One way which may work for you is to use optional<value> as the actual value_type of the map. That way, your map can just return an absent optional if there is no value associated with a key. http://www.boost.org/libs/optional/doc/optional.html -- Fernando Cacciola SciSoft http://fcacciola.50webs.com/