- bytestring-prefix-length bytevector₁ bytevector₂procedure
- bytestring-suffix-length bytevector₁ bytevector₂procedure
Return the length of the longest common prefix/suffix of bytevector₁ and bytevector₂. For prefixes, this is equivalent to their "mismatch index".
(bytestring-prefix-length #u8"Heart Of Gold" #u8"Heart of Gold") ⇒ 6 (bytestring-suffix-length #u8"Heart Of Gold" #u8"Heart of Gold") ⇒ 6 (bytestring-prefix-length-ci #u8"Heart Of Gold" #u8"Heart of Gold") ⇒ 13
(Extension based on string-prefix-length, etc. from srfi-152.)