NAME    [Toc]    [Back]

     bitncmp -- compare bit masks

SYNOPSIS    [Toc]    [Back]

     int
     bitncmp(const void *l, const void *r, int n);

DESCRIPTION    [Toc]    [Back]

     The function bitncmp() compares the ``n'' most-significant bits of the
     two masks pointed to by ``l'' and ``r'', and returns an integer less
     than, equal to, or greater than 0, according to whether or not ``l'' is
     lexicographically less than, equal to, or greater than ``r'' when taken
     to be unsigned characters (this behaviour is just like that of
     memcmp(3)).

     NOTE: Bitncmp() assumes network byte order; this means that the fourth
     octet of 192.5.5.240/28 0x11110000.

RETURN VALUES    [Toc]    [Back]

     Bitncmp() returns values in the manner of memcmp(3):

	   +1 if ``1'' is greater than ``r'';

	   -1 if ``l'' is less than ``r''; and

	   0 if ``l'' is equal to ``r'',

     where ``l'' and ``r'' are both interpreted as strings of unsigned characters
 (through bit ``n''.)

SEE ALSO    [Toc]    [Back]

     memcmp(3).

AUTHOR    [Toc]    [Back]

     Paul Vixie (ISC).

4th Berkeley Distribution	 June 1, 1996	     4th Berkeley Distribution