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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:
Eitan Adler 2012-09-30 03:25:04 +00:00
parent 3afe9c0efe
commit a181e90d14
1 changed files with 4 additions and 5 deletions
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9
lib/libc/string/ffs.3
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@ -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