Stand-alone with C++17 std library, no boost

[elefthei]

I was wondering if there's any plan to making Mach7 stand-alone with the introduction of std::variant and std::visit in C++, in comparison to boost::variant currently used on master. I briefly searched open issues but maybe I missed the relevant conversation.

Is there any additional dependencies on boost except variant?

[solodon4]

I'll try to find time to write the necessary adapter for std::variant in the next couple of days. Thanks for the reminder!

[elefthei]

Thanks @solodon4 for the fast response! Two more cents from me, an unimportant one first;
In addition to std::variant, std::any made it into C++17 which could replace boost::any which should be all the need for boost at this point.

And a more important one; clang 3.9-4 might be required to support these features and--std=gnu++17
https://clang.llvm.org/cxx_status.html

Unfortunately, some experiments I run gave me a very bad performance in generated executables with later versions of clang (clang++-6.0 is what I tried). I would be interested in helping debug and fix these runtime problems with later clang.

[solodon4]

I looked into boost::any a while back in my discussion with Andrzej and that one will require a bit more work to be correct. I will concentrate on std::variant first as that one should be straightforward.

[elfprince13]

Curious if there's any update on this front as my project which uses Mach7 just updated to C++17.

[solodon4]

No updates yet unfortunately - was busy with other projects. I left Microsoft though recently and while I'm on sort of sabbatical I should have a better chance to look at this. Will post here with updates once i do

[elefthei]

Check out the functional C++17 I am generating, I started with Mach7 but ended up writing my own with std::variant https://github.com/mit-pdos/mcqc Look at the test folder.

On Thu, Nov 21, 2019 at 5:43 PM Yuriy Solodkyy ***@***.***> wrote: No updates yet unfortunately - was busy with other projects. I left Microsoft though recently and while I'm on sort of sabbatical I should have a better chance to look at this. Will post here with updates once i do — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#78?email_source=notifications&email_token=AAF3HLGLOWHLGUK5QU55H63QU4FHLA5CNFSM4E4BPOO2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEE347TY#issuecomment-557305807>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAF3HLBRGGFRDFJQXUICX5LQU4FHLANCNFSM4E4BPOOQ> .

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[sgf]

Please don't mind, I just want to care.
Is there any progress on remove boost dependent?