Re: [boost] C++11 on up Boost libraries

-----Original Message----- From: Boost On Behalf Of Edward Diener via Boost Sent: 30 December 2020 15:04 To: boost@lists.boost.org Cc: Edward Diener Subject: Re: [boost] C++11 on up Boost libraries

On 12/30/2020 7:20 AM, Paul A Bristow via Boost wrote:

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Boost.Math has a documented minimum requirement of C++11 (but many library functions, distributions etc still work with C++03, and some new library items require C++17, and some are likely to require C++20 very soon).

I'm sorry that this doesn't fit neatly into your schema ☹

I think then 'cxxstd' should be '11' for Boost.Math. Does this also need to be set for any of:

Boost.config https://www.boost.org/doc/libs/1_75_0/libs/config/doc/html/index.html is used by all these libraries and may determine the cxxstd that is supported.

Math Common Factor

Is now part of Boost. Integer https://www.boost.org/doc/libs/release/libs/integer/doc/html/index.html whereas

Math Octonian Math Quaternion

Are part of Boost.Math https://www.boost.org/doc/libs/release/libs/math/doc/html/quaternions.html https://www.boost.org/doc/libs/release/libs/math/doc/html/octonions.html I believe that the above are quite mature and should still work at C++03. But many of these below are only tested at C++11 and may fail at C++03 (and others require C++14 or even C++17)

Math/Special Functions Math/Statistical Distributions

These are a useful guide, but the only certain method of determining the actual requirements for a particular program and tool chain is to try it. Paul

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-----Original Message----- From: Boost On Behalf Of Edward Diener via Boost Sent: 30 December 2020 04:23 To: boost@lists.boost.org Cc: Edward Diener Subject: [boost] C++11 on up Boost libraries

In my effort to set the meta information of 'cxxstd' for the appropriate C++11 on up libraries, my PRs for these libraries have been kindly merged to 'develop' by the library maintainers:

beast callable_traits context convert coroutine2 fiber geometry gil hana histogram hof json leaf mp11 nowide outcome pfr process safe_numerics static_string stl_interfaces variant2 yap

If anyone knows of any other current library which is a C++11 on up library, please tell me. My testing showed that all other Boost libraries will work in C++03 mode, but maybe I missed some other library which is a C++11 on up library.

Needless to say other libraries have noted their attention to move from C++03 to C++11 in the near future. If any library does change the C++ mode necessary to use that library, I hope the maintainer(s) of that library will update the 'cxxstd' meta information appropriately.

If we can get the website to work properly using the 'cxxstd' meta information, end-users should be able to know immediately whether a Boost library is usable depending on the C++ standard mode their are using.

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