ffsl(3) not in strings.h like manpage says

[Peter Cordes]

Binary package hint: manpages

ffs/ffsl/ffsll(3) says all three bit-scan functions are available after defining _GNU_SOURCE and including strings.h. However, only POSIX ffs(int) is in strings.h. only string.h defines the GNU extension ffsl(long) and ffsll(long long).

 So either fix the manpage or the header, please.

ii libc6-dev 2.8~20080505-0ubuntu8 GNU C Library: Development Libraries and Header Files

ProblemType: Bug
Architecture: i386
Dependencies: manpages 3.01-1
DistroRelease: Ubuntu 8.10
NonfreeKernelModules: ath_hal
Package: manpages-dev 3.01-1
PackageArchitecture: all
ProcEnviron:
 PATH=/home/username/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: manpages
Uname: Linux 2.6.27-11-generic i686

[Michael Kerrisk (mtk-manpages)]

Upsteam maintainer here. This report does not seem to be correct. The ffs(3) page does not make this claim, and I'm not sure that it ever did. The SYNOPSIS shows that including <string.h> is needed for ffsl () and ffsll(). (and _GNU_SOURCE must also be defined).

[Peter Cordes (peter-cordes)]

I don't know what I was thinking when I first reported this. Maybe I didn't notice the difference between string and strings right away and got the wrong idea. Anyway, you're right, invalid bug, sorry about that.