Re: [Boost-bugs] [Boost C++ Libraries] #10882: error C2668: 'boost::swap' : ambiguous call to overloaded function (MSVC)

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #10882: error C2668: 'boost::swap' : ambiguous call to overloaded function (MSVC)
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-01-13 12:42:42

#10882: error C2668: 'boost::swap' : ambiguous call to overloaded function (MSVC)
--------------------------------------------+---------------------------
  Reporter:  Gabor Marton <martongabesz@…>  |      Owner:  apolukhin
      Type:  Bugs                           |     Status:  assigned
 Milestone:  Boost 1.58.0                   |  Component:  variant
   Version:  Boost 1.56.0                   |   Severity:  Problem
Resolution:                                 |   Keywords:  compile error
--------------------------------------------+---------------------------

Comment (by apolukhin):

 Replying to [comment:4 Thomas Riccardi <riccardi@…>]:
 > Since which Boost version this issue is present? At least 1.56, but what
 about earlier versions (like 1.55)?

 Looks like this issue exists from the very beginning of the Varinat
 library.


 > And does this ambiguous call resolution cause a risk on other compilers
 (like gcc)?

 Yes

 > Does it work by luck on gcc? Is this luck stable? Or is there a risk
 that under some more complicated scenario the issue could happen on gcc
 too (without the fix)?

 Issue happen if a class located in `boost::` namespace is being swapped
 and `boost/swap.hpp` is included. Anyway, it's a compile-time error, so
 you'll definitely know if you are hit by this issue.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10882#comment:5>
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