Re: [Q]: Generic subprogram instantiation

[stt@henning.camb.inmet.com (Tucker Taft)]

Robert A Duff (bobduff@world.std.com) wrote:
: In article <m-bartz-0507961333140001@macgalois.ee.memst.edu>,
: Michael Bartz <m-bartz@memphis.edu> wrote:
: >        procedure sub_main is new sub_main(galois);
:                    ^^^^^^^^ 1      ^^^^^^^^ 2

: The sub_main at 1 hides the outer sub_main, which you then illegally try
: to reference at 2.  Call the procedure something different from the
: generic.  (Note that generic procedures are NOT overloadable, unlike
: procedures.)

I hate to disagree with both Bob and Robert, but the procedure named
"sub_main" is not introduced until *after* the generic instantiation
in Ada 95.  See RM95 8.2(2):

   ... except in the case of an overloadable declaration [like the above],
   in which case the immediate scope starts just after the place where the
   profile of the callable entity is determined (which is at the end of the
   _specification for the callable entity, or at the end of the 
   generic_instantiation if an instance).

So I believe this line should be accepted.

: - Bob

-Tucker Taft   stt@inmet.com   http://www.inmet.com/~stt/
Intermetrics, Inc.  Cambridge, MA  USA