Re: [Boost-bugs] [Boost C++ Libraries] #5419: assign fails with C++0x compilers

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #5419: assign fails with C++0x compilers
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-08-13 00:23:47

#5419: assign fails with C++0x compilers
-------------------------------+--------------------------------------------
  Reporter:  chrisj            |       Owner:  nesotto
      Type:  Bugs              |      Status:  new    
 Milestone:  To Be Determined  |   Component:  assign 
   Version:  Boost 1.47.0      |    Severity:  Problem
Resolution:                    |    Keywords:         
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Comment (by Michel MORIN <mimomorin@…>):

 The rationale for using SFINAE by "default template arguments for function
 templates" rather than restricting the number of template parameters by
 variadic templates is that

 * User-defined containers can have only one template parameter.
   In this case, the variadic template approach breaks the existing code.

 * Variadic templates cannot handle ordinary (type) template parameters and
   non-type template parameters simultaneously. This means that we have to
 define
   different overloads for different patterns of non-type template
 parameters. It's a mess.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5419#comment:5>
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