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Newsgroups: comp.lang.ada
Date: Mon, 19 Mar 2018 19:33:34 -0700 (PDT)
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Subject: Re: time of update of new values for out mode parameters
From: Mehdi Saada <00120260a@gmail.com>
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Xref: reader02.eternal-september.org comp.lang.ada:51081
Date: 2018-03-19T19:33:34-07:00
List-Id: <comp.lang.ada>

Ok. To be honest, the use case I had in mind was a wrong one, is meant to be implemented through protected types.

let's say:
procedure FOO (A: out A_TYPE) is
... A := something; -- Can't know when it's copied back
procedure FOO2 (a: access A_TYPE) is
... A.all := something; -- Can't know for sure either, right ?
but I am sure with
until some_absolute_time; some_protected_object.Write(something);
, and another task can use it safely.
Now, about procedure FOO (A: out A_TYPE) is
... delay until some_absolute_time;
A := something; delay until the_other_hour;
I shall assume that inside FOO, A = something" (obviously), but shall not assume this for the world outside FOO ?