Re: [Boost-users] 1.57.0 beta 1 release candidates available for testing

John Maddock writes:

OK, I managed to get CTP4 installed and have 2 updates:

For Boost.Config:

a mostly minor update.

Great, thanks! According to the feature table, auto return types (BOOST_NO_CXX14_RETURN_TYPE_DEDUCTION) are also supported.

For TypeTraits:

I suspect you're not going to like the latter as it basically disables working versions of is_nothrow* for msvc-14. The reason is that is appears that Boost.Log ends up using noexcept(non_compiling_expression) which requires SFINAE expression support.

I also think it's the best solution. You can also delete the "!::boost::is_const<T>::value" with it now.