Re: [Boost-bugs] [Boost C++ Libraries] #12249: Wrong operator|() overload being found on multiple platforms & causing compilation failure

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #12249: Wrong operator|() overload being found on multiple platforms & causing compilation failure
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-06-02 18:21:01

#12249: Wrong operator|() overload being found on multiple platforms & causing
compilation failure
-------------------------------+------------------------
  Reporter:  rob.desbois@…     |      Owner:  neilgroves
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  range
   Version:  Boost 1.61.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+------------------------

Comment (by michel):

 During the overload resolution of operator `|`, the operator for
 `replaced_range` is instantiated if `replaced.hpp` is included
 and the associated namespaces contain `boost::range_detail`.
 This instantiation results in a hard error, if the range's value type is
 an abstract type.

 This problem can be fixed by adding SFINAE-based constraints to operator
 `|`
 for `replaced_range` so that the range's value type is not an abstract
 type.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12249#comment:1>
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