C++ Weekly - Ep 49 - Why Inherit From Lambdas?

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[macxfadz]

Keep up the awesome work Jason :D ...

[thegod]

Would it be better to use lambda with template auto parameter for dummy? : [ ] ( const auto&... ) { }

[mmdk]

Somehow CTAD guide does not work with GCC.
I can see that g++-7 is used in the video, but if I replicate very similar example on godbolt I get an error that parameter pack sizes do not match:
Clang and MSVC work fine.
Any ideas? @Jason Turner

[brenogi]

Nice video. Why the std::for_each though? When you want to traverse the whole container, isn't it simpler to just use range based for loop?

[amirghamarian]

This video is from a long time ago. Do we still need template<typename ...T>?

[Omnifarious]

Sometime in between the time you made this video and the time I tested this, they somehow made the class template deduction guide you have stop working for gcc 7 snapshot. Since I do not yet know exactly how these guides are supposed to work, this may be a bug in the compiler, or a bug in your guide. Resorting to a make_visitor function works, but is a lot uglier.

[azadalishah]

😢Honestly hard to understand, inherit from lambda and previous video ... Is there any other source with more details where I can learn ?

[NathanielHourt]

std::visit(visitor, v)... we've almost come full circle -- C++ is starting to look like C again. Haha