# lc ## Synopsis ```perl $lower = lc($string); $lower = lc('HELLO'); # "hello" ``` ## Description Converts a string to lowercase. Returns a lowercased copy of STRING. For ASCII input, an in-place byte mutation fast path avoids allocation when a TARG pad slot is available. For Unicode input, Rust’s `to_lowercase()` is used, which handles case mappings that change byte length. ## See also uc, ucfirst, lcfirst