Return the number of bytes in a UTF-8 character.
@param s The sequence of bytes containing the character. @param n The maximum number of bytes to inspect. @return The length, in bytes, of the UTF-8 character, or -1 if a decoding error occurs (errno will be set).
See Implementation
Return the number of bytes in a UTF-8 character.
@param s The sequence of bytes containing the character. @param n The maximum number of bytes to inspect. @return The length, in bytes, of the UTF-8 character, or -1 if a decoding error occurs (errno will be set).