"using namespace" within a class declaration?

From: Jacek Dziedzic (jacek__NOSPAM___at_janowo.net)
Date: 04/28/04 

Date: Wed, 28 Apr 2004 23:53:10 +0200

   Is it valid to use a "using namespace foo" (as opposed to
using foo::bar which I'm sure is legal) within a class
declaration? My compiler rejects it, but I've been told it's
valid.

   Can anyone please confirm or deny?

TIA,
- J.

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