ffs man page on OpenBSD

ffs man page on OpenBSD

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FFS(3)			  OpenBSD Programmer's Manual			FFS(3)

NAME
     ffs - find first bit set in a bit string

SYNOPSIS
     #include <string.h>

     int
     ffs(int value);

DESCRIPTION
     The ffs() function finds the first bit set in value and returns the index
     of that bit.  Bits are numbered starting from 1, starting at the
     rightmost bit.  A return value of 0 means that the argument was zero.

SEE ALSO
     bitstring(3)

HISTORY
     The ffs() function appeared in 4.3BSD.

OpenBSD 4.9			 May 31, 2007			   OpenBSD 4.9

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