NAME    [Toc]    [Back]

       ffs - find first bit set in a word

SYNOPSIS    [Toc]    [Back]

       #include <string.h>

       int ffs(int i);

DESCRIPTION    [Toc]    [Back]

       The  ffs()  function  returns  the position of the first bit set in the
       word i.	The least significant bit is position 1 and the most  significant
 position 32.

RETURN VALUE    [Toc]    [Back]

       The  ffs()  function returns the position of the first bit set, or 0 if
       no bits are set.

CONFORMING TO    [Toc]    [Back]

       BSD 4.3, SUSv2

       According to SUSv2, this function is defined in <strings.h>.



GNU				  1993-04-13				FFS(3)