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Questions about boost-hana

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Questions - boost-hana

Using hana filter on tuple of types: "use of boost::hana::not_equal_t before deduction of auto"

I'm trying to filter a hana::tuple_t, which from my understanding is just a hana::tuple of hana::type objects. I looked at some code from the example in the documentation, which is: template <typen...
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nog642

c++

boost

c++17

auto

boost-hana

Votes: 0

Answers: 1

Latest Answer

You're only missing an #include: <boost/hana/not_equal.hpp>. Online Demo
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ildjarn

How to store boost::hana::map inside a class?

I want to store boost::hana::map inside a class so that I can write code like this inside the class: if constexpr (boost::hana::contains(map_, "name"_s)){ std::cout << map_["n...
test-img

Igor Pugachev

c++

boost

constexpr

boost-hana

Votes: 0

Answers: 1

Latest Answer

Yes, using this here appears to be right out. Since the information you are trying to access should be accessible at compile-time, one simple workaround would be to use the type of the entire expressi...
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Jason Rice

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