Re: The new Boost 17.0.0

From: John Maddock (jz.maddock_at_[hidden])
Date: 2020-12-02 18:17:24

>> Feel free to offer PRs to those C++98/C++03 libraries to transition them
>> from MPL to mp11 and from Boost type traits to standard type traits so
>> that they can become C++11 libraries. I do have the greatest admiration
>> for mp11 so I am not being facetious. But "banning" MPL and Boost type
>> traits is going to currently remove a great number of libraries from
>> Boost. I do agree that a bottom up approach is necessary to transition
>> Boost libraries to C++11 since a given Boost C++98/C++03 library has
>> dependencies on other Boost C++98/C++03 which themselves use the Boost
>> rather than the equivalent standard library.

FYI there are many traits in boost.type_traits which are not part of the 
standard.  I would hate to see folks re-implementing is_detected or 
has_operator_XXXX just to "not use type_traits".

John.

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