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clarify the wording for 'first' and 'last'

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Approved by:	wblock
MFC after:	3 days
This commit is contained in:
eadler 2012-09-30 03:25:04 +00:00
parent 525250e187
commit 02d21d96e0
1 changed files with 4 additions and 5 deletions

9
lib/libc/string/ffs.3

@ -30,7 +30,7 @@
.\" @(#)ffs.3 8.2 (Berkeley) 4/19/94
.\" $FreeBSD$
.\"
.Dd May 3, 2011
.Dd September 29, 2012
.Dt FFS 3
.Os
.Sh NAME
@ -63,8 +63,7 @@ The
.Fn ffsl
and
.Fn ffsll
functions find the first bit set
(beginning with the least significant bit)
functions find the first (least significant) bit set
in
.Fa value
and return the index of that bit.
@ -74,11 +73,11 @@ The
.Fn flsl
and
.Fn flsll
functions find the last bit set in
functions find the last (most significant) bit set in
.Fa value
and return the index of that bit.
.Pp
Bits are numbered starting at 1 (the least significant bit).
Bits are numbered starting at 1, the least significant bit.
A return value of zero from any of these functions means that the
argument was zero.
.Sh SEE ALSO