SET(9)
Kernel Developer's Manual
SET(9)
NAME
SET
—
primitive bit macros
SYNOPSIS
#include <
sys/types.h
>
void
SET
(
val
,
x
);
void
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.
April 13, 2010
NetBSD 5.99