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From: Victor Porton <porton@narod.ru>
Newsgroups: comp.lang.ada
Subject: When to use formal discrete type?
Date: Wed, 29 Nov 2017 21:04:32 +0200
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Xref: reader02.eternal-september.org comp.lang.ada:49255
Date: 2017-11-29T21:04:32+02:00
List-Id: <comp.lang.ada>

I am creating a generic package which accepts as a formal argument a type 
which is expected to be an enumeration type.

Should for this enumeration argument I use formal private type (is private) 
or formal discrete type (is (<>))?

I do not use features specific to discrete types such as 'First or 'Range 
attributes.

Because it easily generalizes from discrete types to arbitrary private 
types, should I do generalization?

What of (generalizing for all private types or not) the two is better:

a. for clarity of code;

b. for performance?

It there a noticeable difference in performance if I generalize?

-- 
Victor Porton - http://portonvictor.org