[boost] [range] master broken in latest MSVC

Subject: [boost] [range] master broken in latest MSVC
From: Vinnie Falco (vinnie.falco_at_[hidden])
Date: 2018-04-25 22:17:13

I'm using the latest release of Visual Studio and I get these errors
from the master superproject:

8>c:\users\vinnie\src\boost\boost\range\concepts.hpp(257): error
C3646: 'n': unknown override specifier
8>c:\users\vinnie\src\boost\boost\range\concepts.hpp(264): note: see
reference to class template instantiation
'boost::range_detail::RandomAccessIteratorConcept<Iterator>' being
compiled
8>c:\users\vinnie\src\boost\boost\range\concepts.hpp(257): error
C4430: missing type specifier - int assumed. Note: C++ does not
support default-int

This issue exactly describes the problem:
<https://github.com/boostorg/range/issues/68>

Thanks