| 1 | /* |
| 2 | |
| 3 | Copyright 1996, 1998 The Open Group |
| 4 | |
| 5 | Permission to use, copy, modify, distribute, and sell this software and its |
| 6 | documentation for any purpose is hereby granted without fee, provided that |
| 7 | the above copyright notice appear in all copies and that both that |
| 8 | copyright notice and this permission notice appear in supporting |
| 9 | documentation. |
| 10 | |
| 11 | The above copyright notice and this permission notice shall be included |
| 12 | in all copies or substantial portions of the Software. |
| 13 | |
| 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 15 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- |
| 16 | ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT |
| 17 | SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABIL- |
| 18 | ITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 19 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 20 | IN THE SOFTWARE. |
| 21 | |
| 22 | Except as contained in this notice, the name of The Open Group shall |
| 23 | not be used in advertising or otherwise to promote the sale, use or |
| 24 | other dealings in this Software without prior written authorization from |
| 25 | The Open Group. |
| 26 | |
| 27 | */ |
| 28 | |
| 29 | #ifdef HAVE_DIX_CONFIG_H |
| 30 | #include <dix-config.h> |
| 31 | #endif |
| 32 | |
| 33 | #ifndef HAVE_FFS |
| 34 | |
| 35 | #include "dix.h" |
| 36 | |
| 37 | int |
| 38 | ffs(int i) |
| 39 | { |
| 40 | int j; |
| 41 | |
| 42 | if (i == 0) |
| 43 | return 0; |
| 44 | for (j = 1; (i & 1) == 0; j++) |
| 45 | i >>= 1; |
| 46 | return j; |
| 47 | } |
| 48 | |
| 49 | #endif |