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From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: is_callable(environment)?
Date: 1998/07/22
Message-ID: <dewar.901140867@merv>#1/1
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Date: 1998-07-22T00:00:00+00:00
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<<appears to work on the three compilers I've tried so far, but I wonder
if I'm just very lucky, or if most compilers take the allowance of
C.7.1(21) and allow 'caller to return a task_id of the environment
task, and if is_callable on the environment task becomes false when it
reaches the end of the main program and before its dependent tasks
have terminated and library level controlled objects have finalized.
>>>

You are lucky, there is no reason to think this would always work!