Re: [Boost-bugs] [Boost C++ Libraries] #7663: warning C4913: user defined binary operator ', ' exists but no overload could convert all operands, default built-in binary operator ', ' used

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7663: warning C4913: user defined binary operator ', ' exists but no overload could convert all operands, default built-in binary operator ', ' used
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-03-10 21:08:08

#7663: warning C4913: user defined binary operator ','  exists but no overload
could convert all operands, default built-in binary  operator ',' used
--------------------------------------+-------------------------------------
  Reporter:  jeffrey.flinn@…          |       Owner:  eric_niebler
      Type:  Bugs                     |      Status:  closed      
 Milestone:  To Be Determined         |   Component:  result_of   
   Version:  Boost 1.52.0             |    Severity:  Problem     
Resolution:  fixed                    |    Keywords:              
--------------------------------------+-------------------------------------

Comment (by eric_niebler):

 Sure it does.

 {{{
 C:\boost\org\branches\release>svn diff -c 83381
 boost\utility\result_of.hpp
 Index: boost/utility/result_of.hpp
 ===================================================================
 --- boost/utility/result_of.hpp (revision 83380)
 +++ boost/utility/result_of.hpp (revision 83381)
 @@ -68,6 +68,13 @@

  #ifdef BOOST_NO_SFINAE_EXPR

 +// There doesn't seem to be any other way to turn this off such that the
 presence of
 +// the user-defined operator,() below doesn't cause spurious warning all
 over the place,
 +// so unconditionally turn it off.
 +#if BOOST_MSVC
 +#  pragma warning(disable: 4913) // user defined binary operator ','
 exists but no overload could convert all operands, default built-in binary
 operator ',' used
 +#endif
 +
  struct result_of_private_type {};

  struct result_of_weird_type {

 Property changes on: boost/utility/result_of.hpp
 ___________________________________________________________________
 Modified: svn:mergeinfo
    Merged /trunk/boost/utility/result_of.hpp:r82960
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7663#comment:13>
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