[Boost-bugs] [Boost C++ Libraries] #5784: fusion::pair operator>>/<< should not be templated on the stream type

Subject: [Boost-bugs] [Boost C++ Libraries] #5784: fusion::pair operator>>/<< should not be templated on the stream type
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-08-15 02:29:34

#5784: fusion::pair operator>>/<< should not be templated on the stream type
-------------------------------+--------------------------------------------
 Reporter:  gredner@…          |       Owner:  djowel 
     Type:  Bugs               |      Status:  new    
Milestone:  To Be Determined   |   Component:  fusion 
  Version:  Boost 1.47.0       |    Severity:  Problem
 Keywords:                     |  
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 The operator<< and operator>> defined to work with fusion::pair are
 templated on the stream type.  Unfortunately, this triggers bug 5783 which
 prevents lexical_cast from working with fusion::pair.

 I believe this is legitimately a bug in lexical_cast, but it has a trivial
 workaround in fusion - stop templating these operators on the stream type.
 The stream operators for pair and unused both template on the stream type,
 but the stream operators for sequences do not, and I see no reason for the
 difference.

 A patch is attached.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5784>
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