1 #![allow(dead_code)]
2
memchrnull3 pub fn memchr(n1: u8, haystack: &[u8]) -> Option<usize> {
4 haystack.iter().position(|&b| b == n1)
5 }
6
memchr2null7 pub fn memchr2(n1: u8, n2: u8, haystack: &[u8]) -> Option<usize> {
8 haystack.iter().position(|&b| b == n1 || b == n2)
9 }
10
memchr3null11 pub fn memchr3(n1: u8, n2: u8, n3: u8, haystack: &[u8]) -> Option<usize> {
12 haystack.iter().position(|&b| b == n1 || b == n2 || b == n3)
13 }
14
memrchrnull15 pub fn memrchr(n1: u8, haystack: &[u8]) -> Option<usize> {
16 haystack.iter().rposition(|&b| b == n1)
17 }
18
memrchr2null19 pub fn memrchr2(n1: u8, n2: u8, haystack: &[u8]) -> Option<usize> {
20 haystack.iter().rposition(|&b| b == n1 || b == n2)
21 }
22
memrchr3null23 pub fn memrchr3(n1: u8, n2: u8, n3: u8, haystack: &[u8]) -> Option<usize> {
24 haystack.iter().rposition(|&b| b == n1 || b == n2 || b == n3)
25 }
26