[boost] [numeric_conversion] Compilation errors with msvc-14.1 and std:c++latest in master branch

Hi, I noticed there are compilation errors in master branch and not in develop branch. Only runs with cxxflags= std:c++latest are failing. See e.g.: http://www.boost.org/development/tests/master/developer/output/teeks99-09-q-... Affecting Geometry: http://www.boost.org/development/tests/master/developer/output/teeks99-09-q-... Regards, Adam