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From: matteo.bordin@gmail.com
Newsgroups: comp.lang.ada
Subject: prohibit certain generic instantiations in Ada 2005
Date: 9 Feb 2006 10:01:50 -0800
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Date: 2006-02-09T10:01:50-08:00
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There's a way to prohibit certain generic instantiations (I'm using Ada
2005)?
For  example:

generic
     Type B is new A with private;
...

Should be instantiated only with a certain subtype(s) of A.
I know a way to do that in C++ (with templates) but it doesn't seem to
work in Ada.