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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [libiberty/] [ffs.c] - Diff between revs 834 and 842

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Rev 834 Rev 842
/* ffs -- Find the first bit set in the parameter
/* ffs -- Find the first bit set in the parameter
 
 
@deftypefn Supplemental int ffs (int @var{valu})
@deftypefn Supplemental int ffs (int @var{valu})
 
 
Find the first (least significant) bit set in @var{valu}.  Bits are
Find the first (least significant) bit set in @var{valu}.  Bits are
numbered from right to left, starting with bit 1 (corresponding to the
numbered from right to left, starting with bit 1 (corresponding to the
value 1).  If @var{valu} is zero, zero is returned.
value 1).  If @var{valu} is zero, zero is returned.
 
 
@end deftypefn
@end deftypefn
 
 
*/
*/
 
 
int
int
ffs (register int valu)
ffs (register int valu)
{
{
  register int bit;
  register int bit;
 
 
  if (valu == 0)
  if (valu == 0)
    return 0;
    return 0;
 
 
  for (bit = 1; !(valu & 1); bit++)
  for (bit = 1; !(valu & 1); bit++)
        valu >>= 1;
        valu >>= 1;
 
 
  return bit;
  return bit;
}
}
 
 
 
 

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