@node ffsll
@subsection @code{ffsll}
@findex ffsll

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/ffsll.html}

Documentation:@* @uref{https://www.kernel.org/doc/man-pages/online/pages/man3/ffsll.3.html,,man ffsll}

Gnulib module: ffsll
@mindex ffsll

Portability problems fixed by Gnulib:
@itemize
@item
This function is missing on many non-glibc platforms:
Mac OS X 10.5, FreeBSD 6.0, NetBSD 10.0, OpenBSD 7.5, Minix 3.1.8, AIX 5.1, HP-UX 11, Solaris 10, Cygwin 1.7.x, mingw, MSVC 14, Android 9.0.
@item
This function is declared in @code{<strings.h>} instead of @code{<string.h>}
on some platforms:
AIX 7.2, Android 13.
@item
This function returns completely wrong values on some platforms:
AIX 7.2 in 32-bit mode.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
This function is only defined as an inline function on some platforms:
Android 13.
@end itemize
