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In Rust, let _ = ... and let _unused = ... are not the same

gaultier.github.io · published 6 March 2026

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https://old.reddit.com/r/rust/comments/1rmkt2d/in_rust_let_and_let_unused_are_not_the_same/

old.reddit.com

https://linux.die.net/man/3/pthread_cond_wait

linux.die.net

https://doc.rust-lang.org/std/sync/struct.Condvar.html

doc.rust-lang.org

https://doc.rust-lang.org/reference/destructors.html

doc.rust-lang.org

https://www.reddit.com/r/rust/comments/1rmkt2d/comment/o90mdow/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

reddit.com

https://doc.rust-lang.org/reference/patterns.html

doc.rust-lang.org

https://doc.rust-lang.org/reference/identifiers.html

doc.rust-lang.org

https://doc.rust-lang.org/reference/keywords.html

doc.rust-lang.org

Perhaps Rust needs "defer" Read at the source ↗

gaultier.github.io

https://doc.rust-lang.org/stable/nightly-rustc/src/rustc_lint/let_underscore.rs.html

doc.rust-lang.org