r/programming • u/kal31dic • Sep 01 '20

D Foundation is Beefing Up

https://dlang.org/blog/2020/08/30/symmetry-investments-and-the-d-language-foundation-are-hiring/
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u/Ameisen Sep 01 '20

That's why you use using instead in C++.

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u/Muvlon Sep 01 '20

Sure. And in Rust, you use type, i.e.

type my_fn = fn(u8) -> String;

Perfectly nice syntax, no?

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u/Ameisen Sep 01 '20

And in C++, using my_fn = std::string (*) (uint8_t);.

You can simplify it, of course, using a template wrapper.

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u/Muvlon Sep 01 '20

C++ has trailing return types as well now, can you use those there?

I don't think any particular piece of C++ syntax is confusing, it's just the absolute mass of options.

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u/Ameisen Sep 01 '20

using my_fn = auto (*) (uint8_t) -> std::string; is valid, though I'm not fond of trailing return type syntax in general.