In article <2m12gt$gq5@sunb.ocs.mq.edu.au> valery@macadam.mpce.mq.edu.au (Valery ARONOV) writes:
>Does anybody know the reasons why it is impossible to make ALL
>template-based classes to be friends of some one another class?

 Sure. Its not permitted because its not permitted :-)

 Will it be permitted in ISO C++?

 Probably, yes. But its a bit dangerous, because it
allows a specialisation to violate encapsulation.

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