inherits - determine if an object inherits a given file
int inherits( string file, object obj );
inherits() returns 0 if obj does not inherit file, 1 if it inherits the most recent copy of file, and 2 if it inherits an old copy of file.
See also:
deep_inherit_list,inherit_list
Tim Hollebeek Beek@ZorkMUD, Lima Bean, IdeaExchange, and elsewhere