| /* |
| * 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 "libavcodec/mathops.h" |
| |
| #include <stdlib.h> |
| |
| int main(void) |
| { |
| unsigned u; |
| |
| for(u=0; u<65536; u++) { |
| unsigned s = u*u; |
| unsigned root = ff_sqrt(s); |
| unsigned root_m1 = ff_sqrt(s-1); |
| if (s && root != u) { |
| fprintf(stderr, "ff_sqrt failed at %u with %u\n", s, root); |
| return 1; |
| } |
| if (u && root_m1 != u - 1) { |
| fprintf(stderr, "ff_sqrt failed at %u with %u\n", s, root); |
| return 1; |
| } |
| } |
| return 0; |
| } |