| /* Copyright (C) 1991-2016 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Torbjorn Granlund (tege@sics.se). |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <limits.h> |
| #define ffsl __something_else |
| #include <string.h> |
| |
| #undef ffsll |
| |
| /* Find the first bit set in I. */ |
| int |
| ffsll (long long int i) |
| { |
| unsigned long long int x = i & -i; |
| |
| if (x <= 0xffffffff) |
| return ffs (i); |
| else |
| return 32 + ffs (i >> 32); |
| } |
| |
| #if ULONG_MAX != UINT_MAX |
| #undef ffsl |
| weak_alias (ffsll, ffsl) |
| #endif |