]> Hi, I'm just trying to figure out how to create a queue of a specific type in a .ml file. I can do it in the interpreter as: >let q = Queue.create() >Queue.add 1 q This creates an int queue. Declaring this in a .ml file gives The type of this expression, '_a Queue.t, contains type variables that cannot be generalized I know you can construct a Queue and put an item in it straight away to specify the type, but I want an empty queue to start with; eg like std::queue<int> from c++. Any help appreciated. Thanks. ------------------- To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ Beginner's list: http://groups.yahoo.com/group/ocaml_beginners