From mboxrd@z Thu Jan  1 00:00:00 1970
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From: Pascal Ledru <ledru>
Subject: Re: Tasking with Linux-Gnat ?
Date: 1996/05/20
Message-ID: <4nqgro$dhj@hacgate2.hac.com>#1/1
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references: <4msmmt$2cc0@info4.rus.uni-stuttgart.de>
 <qw6rassd1iu.fsf@gargantua.enst.fr> <DrJILv.1rv@UQuebec.CA>
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Date: 1996-05-20T00:00:00+00:00
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You should clarify if you have a timed_entry_call or a selective_accept.
The timed_entry_call does not have guard before its delay alternative.
On the other hand, the selective_accept does.

The following code is legal:
select
  accept A;
or
  when condition =>
    delay 1.0;
end select;

but the following is not:
select
  T.A;
or
  when condition =>
    delay 1.0;
end select;

you can achieve what you want with an extra variable:
X := Boolean'Pos(Condition) * minutes;
select
  T.A;
or
  delay 10 * X;
end select;