Module Name: src
Committed By: plunky
Date: Sun Dec 13 21:53:03 UTC 2015
Modified Files:
src/share/man/man9: SET.9
Log Message:
Clarify the meaning of this. These macros do not operate on bit numbers
as is implied.. the macros are defined as
#define SET(t, f) ((t) |= (f))
#define ISSET(t, f) ((t) & (f))
#define CLR(t, f) ((t) &= ~(f))
When the rationale is to provide clarity in the source code, then it
is good to have manual pages that are correct.
To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/share/man/man9/SET.9
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/share/man/man9/SET.9
diff -u src/share/man/man9/SET.9:1.3 src/share/man/man9/SET.9:1.4
--- src/share/man/man9/SET.9:1.3 Wed Mar 12 16:37:01 2014
+++ src/share/man/man9/SET.9 Sun Dec 13 21:53:02 2015
@@ -1,4 +1,4 @@
-.\" $NetBSD: SET.9,v 1.3 2014/03/12 16:37:01 jruoho Exp $
+.\" $NetBSD: SET.9,v 1.4 2015/12/13 21:53:02 plunky Exp $
.\"
.\" Copyright (c) 2010 The NetBSD Foundation, Inc.
.\" All rights reserved.
@@ -27,7 +27,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
-.Dd March 12, 2014
+.Dd December 13, 2015
.Dt SET 9
.Os
.Sh NAME
@@ -42,26 +42,26 @@
.Ft void
.Fn CLR "val" "x"
.Sh DESCRIPTION
-These macros define three standard bit-operations:
+These macros define three standard bit operations:
.Bl -enum -offset indent
.It
.Fn SET
-sets the bit
+the set bits from
.Fa x
in
.Fa val ;
.It
.Fn CLR
-clears the bit
+clears the set bits from
.Fa x
in
.Fa val ;
and
.It
.Fn ISSET
-returns 1 if the bit
+returns true if any of the set bits from
.Fa x
-is set in
+are set in
.Fa val .
.El
.Sh SEE ALSO
