A character string is a contiguous sequence of bytes in memory, as shown below.
A character string is specified by two attributes: the address A of
the first byte of the string, and the length L of the string in bytes.
For Windows* OS, the length L of a string is in the range 1 through 2,147,483,647
(2**31-1) . For Linux* OS, the length L of a string is in the range 1
through 2,147,483,647 (2**31-1) for systems based
on IA-32 architecture and in the range 1 through 9,223,372,036,854,775,807
(2**63-1) for systems based on Intel