[Boost-bugs] [Boost C++ Libraries] #10665: boost::uuids::name_generator::operator() is not const, as promised in the documentation

Subject: [Boost-bugs] [Boost C++ Libraries] #10665: boost::uuids::name_generator::operator() is not const, as promised in the documentation
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-10-16 10:00:41

#10665: boost::uuids::name_generator::operator() is not const, as promised in the
documentation
------------------------------+-----------------------
 Reporter:  lars.rohwedder@…  |      Owner:  atompkins
     Type:  Bugs              |     Status:  new
Milestone:  To Be Determined  |  Component:  uuid
  Version:  Boost 1.56.0      |   Severity:  Problem
 Keywords:                    |
------------------------------+-----------------------
 The uuids::name_generator holds an internal state (detail::sha1 sha),
 which is resetted on every operator() call, hence the operator() cannot be
 const.

 So the generators aren't reentrant and cannot be shared between threads.
 :-(

 Solution:

 Make the state a local variable in the operator(). So the operator() can
 be const (as documentation promises) and the class becomes reentrant.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10665>
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