c/string/byte

A null-terminated byte string (NTBS) is a sequence of nonzero bytes followed by a byte with value zero (the terminating null character). Each byte in a byte string encodes one character of some character set. For example, the character array is an NTBS holding the string  in  encoding.

Functions
Note: additional functions whose names begin with either or, followed by a lowercase letter, may be added to the header  in future and should not be defined by programs that include that header.