NAME
memcmp
- compare byte string
SYNOPSIS
int
memcmp(const void *b1, const void *b2, size_t len)
DESCRIPTION
The
memcmp()
function
compares byte string
b1
against byte string
b2.
Both strings are assumed to be
len
bytes long.
RETURN VALUES
The
memcmp()
function
returns zero if the two strings are identical,
otherwise returns the difference between the first two differing bytes
(treated as unsigned char values, so that
`\200'
is greater than
`\0',
for example).
Zero-length strings are always identical.
STANDARDS
The
memcmp()
function
conforms to
ANSI X3.159-1989 (``ANSI C89'') .