Seyyed Soroosh Hosseinalipour via Boost-users
<boost-users@lists.boost.org> wrote:

> ITNOA
>
> I have question about the plan to migrate code base from C++03 to C++20 for iostreams library
>
> I think iostreams library have very more clean if using modern C++ features, such as Concept
>
> Did you have any plan about that?
>
> thanks

Lots of people use boost because they cannot use C++20 or even C++17.
For those users, boost provides C++11 or C++14 portable equivalent of
new std libs (boost::optional, boost::variant, boost::filesystem, etc.)

If boost required C++20, many users would not be able to use boost anymore.
Boost should be not require such a recent C++ standard. C++11 or C++14
are probably the best minimal standard for Boost IMO at the moment.

Furthermore, looking at https://en.cppreference.com/w/cpp/20 (core language
+ STL), recent versions of gcc or msvc are in good shape with C++20 but clang
is less complete.

Dominique
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