snaggen@programming.dev to Rust@programming.dev · 5 months agoAnnouncing Rust 1.79.0blog.rust-lang.orgexternal-linkmessage-square3fedilinkarrow-up169arrow-down11
arrow-up168arrow-down1external-linkAnnouncing Rust 1.79.0blog.rust-lang.orgsnaggen@programming.dev to Rust@programming.dev · 5 months agomessage-square3fedilink
minus-squarecalcopiritus@lemmy.worldlinkfedilinkarrow-up3arrow-down1·5 months agoI don’t understand what the advantages of const expressions are. Isn’t const { None } the same as just None?
minus-squaretaladar@sh.itjust.workslinkfedilinkarrow-up6·5 months agoconst 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).
I don’t understand what the advantages of const expressions are.
Isn’t
const { None }the same as justNone?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).