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[Caml-list] examples of heterogenous collections (containers ?)
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Date: -- (:)
From: briand@a...
Subject: [Caml-list] examples of heterogenous collections (containers ?)

I'm embarking on that most typical of ewexamples, the heterogenous list.

So I have objects:

  virtual method

  inherit base_class

  inherit base_class


And I would like to collect instances of derived_class_B,
derived_class_B etc.. into a data structure.

The obvious example is that I'd like to collect the objects into a
list and do something like :

  (f obj ->

or is (obj :> base_class)#method ?

I've done quite a bit of searching but I cannot seem to find a "clean"
example of doing the above, just bits and pieces.  Can anyone point me
to any examples or code  ?



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