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From: Stephen Leake <stephen_leake@stephe-leake.org>
Newsgroups: comp.lang.ada
Subject: Re: Deallocating an object twice
References: <lr1142$log$1@speranza.aioe.org>
Date: Sun, 27 Jul 2014 10:29:30 -0500
Message-ID: <85bnsarfad.fsf@stephe-leake.org>
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Date: 2014-07-27T10:29:30-05:00
List-Id: <comp.lang.ada>

Victor Porton <porton@narod.ru> writes:

> If I understand correctly, it is an undefined behavior (or is it called 
> unbounded error?) if a pool access is deallocated twice with 
> Unchecked_Deallocation.

You misunderstand.

ARM 2012 13.11.3

Procedure Free has the following effect:

7
     1.  After executing Free(X), the value of X is null.

8
     2.  Free(X), when X is already equal to null, has no effect.


-- 
-- Stephe