Programmer Humor

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Is this a Nut? (media.gehirneimer.de)

submitted 9 months ago by [email protected] to c/[email protected]

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[–] [email protected] 16 points 9 months ago (1 children)

C++: Nuh, uh ...

template <typename T>
concept Crackable = requires(T obj) {
    { obj.crack() };
};

auto crack(Crackable auto& nut) {
    nut.crack();
}

[–] [email protected] 2 points 9 months ago* (last edited 9 months ago) (1 children)

This is dangerous. The object might not have the crack() method, and this bloats the compiled size by a lot if you use it with different types. There's also no reason I can see to use concepts here. The saner way would probably be to use inheritance and objects to mimic Java interfaces.

[–] [email protected] 4 points 9 months ago

This is dangerous

Well, they say you do have to be over 18 to use Concepts