needless_character_iteration false positive #12879
Description
This transformation isn't correct:
fn main() { let s = "Beyoncé"; // EVERY character isn't ascii dbg!(s.chars().all(|c| !char::is_ascii(&c))); // ANY character isn't ascii dbg!(!s.is_ascii()); }[src/main.rs:3:5] s.chars().all(|c| !char::is_ascii(&c)) = false [src/main.rs:4:5] !s.is_ascii() = true Originally posted by @aDotInTheVoid in #12815 (comment)