Byte strings

A null-terminated byte string, or NTBS, is a character sequence whose highest-addressed element with defined content has the value zero (the terminating null character).
The length of an NTBS is the number of elements that precede the terminating null character. An empty NTBS has a length of zero.
The value of an NTBS is the sequence of values of the elements up to and including the terminating null character.
A static NTBS is an NTBS with static storage duration.