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Announcing Rust 1.79.0 (blog.rust-lang.org)

submitted 2 months ago by [email protected] to c/[email protected]

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[–] [email protected] 2 points 2 months ago (1 children)

I don't understand what the advantages of const expressions are.

Isn't const { None } the same as just None?

[–] taladar 7 points 2 months ago

const expressions are evaluated at compile time and can be used in locations where you would have to otherwise specify a literal (or something that amounts to a named literal like a const value).