[Boost-bugs] [Boost C++ Libraries] #13539: Boost Polygon - MSVC 2017 - Ambiguous call to size() function

Subject: [Boost-bugs] [Boost C++ Libraries] #13539: Boost Polygon - MSVC 2017 - Ambiguous call to size() function
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2018-04-25 10:54:09

#13539: Boost Polygon - MSVC 2017 - Ambiguous call to size() function
-------------------------------------------+------------------------------
 Reporter:  Kai Benndorf <kai.benndorf@…>  |      Owner:  Lucanus Simonson
     Type:  Bugs                           |     Status:  new
Milestone:  To Be Determined               |  Component:  polygon
  Version:  Boost 1.67.0                   |   Severity:  Regression
 Keywords:                                 |
-------------------------------------------+------------------------------
 We are currently switching our compiler from MSVC 2012 to MSVC 2017. Now I
 have problems compiling out application using Boost Polygon. I get the
 following error:

 c:\khand\win64\include\boost\polygon\polygon_traits.hpp(606): error C2668:
 "boost::polygon::size": ambiguous call to overloaded function
 c:\khand\win64\include\boost\polygon\polygon_traits.hpp(467): note:
 could be "unsigned __int64 boost::polygon::size<polygon_type>(const T &)"
         with
         [
             polygon_type=DESIGN::GTL::Polygon,
             T=DESIGN::GTL::Polygon
         ]
 C:\Program Files (x86)\Microsoft Visual
 Studio\2017\Professional\VC\Tools\MSVC\14.13.26128\include\xutility(1611):
 note: or "unsigned __int64 std::size<polygon_type>(const _Container &)"
 [bei der Verwendung der argumentbezogenen Suche gefunden]
         with
         [
             polygon_type=DESIGN::GTL::Polygon,
             _Container=DESIGN::GTL::Polygon
         ]

 In size() function in polygon_traits.hpp conflicts with the now in C++
 standard contained std::size().

 I could solve the problem by using the completed name
 boost:polygon::size() in polygon_traits.hpp. Please see appended diff.

-- 
Ticket URL: <https://svn.boost.org/trac10/ticket/13539>
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