[Shallows-devel] Fwd: [Boost-announce] [regex] Thread safety patch.

[Johan S. <jo...@if...>]

---------- Forwarded message ----------
From: John Maddock <jo...@jo...>
Date: Aug 1, 2006 11:11 AM
Subject: [Boost-announce] [regex] Thread safety patch.
To: boost-users <boo...@li...>, boost-announce
<boo...@li...>


With apologies to all concerned, and thanks to Aleksey Sanin for tracking
down the problem, there is a const-correctness bug in Boost.Regex-1.33.x
that strikes only in multithreaded programs on Unix platforms, if:

* Multiple threads construct regexes concurrently, or
* Multiple threads perform search and replace operations concurrently.

There are two possible fixes:

* Apply the attached patch (this has just gone into cvs along with an
updated test case that detects the issue). Or,
* define BOOST_REGEX_USE_C_LOCALE in boost/user.hpp and rebuild everything.

Regards, John Maddock.


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-- 
Regards Johan Seland
PhD Student
Center of Mathematics for Applications, University of Oslo