| /* |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg 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. |
| * |
| * FFmpeg 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 FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavutil/atomic.h" |
| #include "libavutil/avassert.h" |
| |
| int main(void) |
| { |
| volatile int val = 1; |
| void *tmp1 = (int *)&val; |
| void * volatile *tmp2 = &tmp1; |
| int res; |
| |
| res = avpriv_atomic_int_add_and_fetch(&val, 1); |
| av_assert0(res == 2); |
| avpriv_atomic_int_set(&val, 3); |
| res = avpriv_atomic_int_get(&val); |
| av_assert0(res == 3); |
| avpriv_atomic_ptr_cas(tmp2, tmp1, &res); |
| av_assert0(*tmp2 == &res); |
| |
| return 0; |
| } |