| /contrib/toolchain/binutils/libiberty/ffs.c |
|---|
| 0,0 → 1,26 |
| /* ffs -- Find the first bit set in the parameter |
| @deftypefn Supplemental int ffs (int @var{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. |
| @end deftypefn |
| */ |
| int |
| ffs (register int valu) |
| { |
| register int bit; |
| if (valu == 0) |
| return 0; |
| for (bit = 1; !(valu & 1); bit++) |
| valu >>= 1; |
| return bit; |
| } |