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SET(9)                     Kernel Developer's Manual                    SET(9)

NAME
     SET -- primitive bit macros

SYNOPSIS
     #include <sys/types.h>

     void
     SET(val, x);

     int
     ISSET(val, x);

     void
     CLR(val, x);

DESCRIPTION
     These macros define three standard bit-operations:

           1.   SET() sets the bit x in val;

           2.   CLR() clears the bit x in val; and

           3.   ISSET() returns 1 if the bit x is set in val.

SEE ALSO
     bits(3)

BUGS
     The rationale is to provide clarity in the source code, but arguably
     these operations are clear enough without the use of the macros.

NetBSD 7.1.2                    March 12, 2014                    NetBSD 7.1.2