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Re: Prevent double free in basic_string

From: tlknv <tlknv at yandex dot ru>
To: "libstdc++ at gcc dot gnu dot org" <libstdc++ at gcc dot gnu dot org>
Date: Thu, 31 May 2012 20:55:10 +0400
Subject: Re: Prevent double free in basic_string
References: <8271338475020@web6g.yandex.ru> <alpine.DEB.2.02.1205311842320.3371@laptop-mg.saclay.inria.fr>

I think that this patch aims and fixes the ussue described in the bug 21334 (assigmment simultaniously with "non-constant" method).
I'm not sure if there are other issues that lead to double free in basic_string but I not know of them.

References:
- Prevent double free in basic_string
  - From: tlknv
- Re: Prevent double free in basic_string
  - From: Marc Glisse

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