/* ffs -- Find the first bit set in the parameter
-NAME
- ffs -- Find the first bit set in the parameter
+@deftypefn Supplemental int ffs (int @var{valu})
-SYNOPSIS
- int ffs (int valu)
+Find the first (least significant) bit set in @var{valu}. Bits are
+numbered from right to left, starting with bit 1 (corresponding to the
+value 1). If @var{valu} is zero, zero is returned.
-DESCRIPTION
- Find the first bit set in the parameter. Bits are numbered from
- right to left, starting with bit 1.
+@end deftypefn
*/
int
-ffs (valu)
- register int valu;
+ffs (register int valu)
{
register int bit;