Function starts_with

arrow-string/src/predicate.rs:211–217

This is faster than `str::starts_with` for small strings. See for more details.

(haystack: &str, needle: &str, byte_eq_kernel: impl Fn((&u8, &u8)) -> bool)

/// This is faster than `str::starts_with` for small strings.
/// See <https://github.com/apache/arrow-rs/issues/6107> for more details.
fn starts_with(haystack: &str, needle: &str, byte_eq_kernel: impl Fn((&u8, &u8)) -> bool) -> bool {
    if needle.len() > haystack.len() {
        false
    } else {
        zip(haystack.as_bytes(), needle.as_bytes()).all(byte_eq_kernel)
    }
}
/// This is faster than `str::ends_with` for small strings.
/// See <https://github.com/apache/arrow-rs/issues/6107> for more details.
fn ends_with(haystack: &str, needle: &str, byte_eq_kernel: impl Fn((&u8, &u8)) -> bool) -> bool {