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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Array conversion and bounds
Date: Sun, 15 Apr 2018 11:36:19 +0200
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Xref: reader02.eternal-september.org comp.lang.ada:51508
Date: 2018-04-15T11:36:19+02:00
List-Id: <comp.lang.ada>

Do array bounds slide during conversion? Consider this:

    type A is array (Integer range <>) of Whatever;
    type B is array (Unsigned_32 range <>) of Whatever;

    X : A (-10..-1);
    Y : B (1..10);
begin
    Y := B (X); -- Is this OK?

If bounds slide it must be OK, if bounds do not slide, it must raise 
Constraint_Error.

Any language lawyers?

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de