#![warn(clippy::manual_pattern_char_comparison)] struct NotStr; impl NotStr { fn find(&self, _: impl FnMut(char) -> bool) {} } fn main() { let sentence = "Hello, world!"; sentence.trim_end_matches(['.', ',', '!', '?']); sentence.split(['\n', 'X']); sentence.split(['\n', 'X']); sentence.splitn(3, 'X'); sentence.splitn(3, |c: char| c.is_whitespace() || c == 'X'); let char_compare = 'X'; sentence.splitn(3, char_compare); sentence.split(['\n', 'X', 'Y']); sentence.splitn(3, 'X'); sentence.splitn(3, ['X', 'W']); sentence.find('🎈'); let not_str = NotStr; not_str.find(|c: char| c == 'X'); "".find(|c| c == 'a' || c > 'z'); let x = true; "".find(|c| c == 'a' || x || c == 'b'); let d = 'd'; "".find(|c| c == 'a' || d == 'b'); "".find(|c| match c { 'a' | 'b' => true, _ => c.is_ascii(), }); "".find(|c| matches!(c, 'a' | 'b' if false)); "".find(|c| matches!(c, 'a' | '1'..'4')); "".find(|c| c == 'a' || matches!(c, '1'..'4')); macro_rules! m { ($e:expr) => { $e == '?' }; } "".find(|c| m!(c)); } #[clippy::msrv = "1.57"] fn msrv_1_57() { let sentence = "Hello, world!"; sentence.trim_end_matches(|c: char| c == '.' || c == ',' || c == '!' || c == '?'); } #[clippy::msrv = "1.58"] fn msrv_1_58() { let sentence = "Hello, world!"; sentence.trim_end_matches(['.', ',', '!', '?']); }