id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13539	Boost Polygon - MSVC 2017 - Ambiguous call to size() function	Kai Benndorf <kai.benndorf@…>	Lucanus Simonson	"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."	Bugs	new	To Be Determined	polygon	Boost 1.67.0	Regression			Kai Benndorf