LCOV - code coverage report
Current view: top level - libavcodec/tests - mathops.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 8 12 66.7 %
Date: 2017-10-24 00:14:43 Functions: 1 1 100.0 %

          Line data    Source code
       1             : /*
       2             :  * This file is part of FFmpeg.
       3             :  *
       4             :  * FFmpeg is free software; you can redistribute it and/or
       5             :  * modify it under the terms of the GNU Lesser General Public
       6             :  * License as published by the Free Software Foundation; either
       7             :  * version 2.1 of the License, or (at your option) any later version.
       8             :  *
       9             :  * FFmpeg is distributed in the hope that it will be useful,
      10             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12             :  * Lesser General Public License for more details.
      13             :  *
      14             :  * You should have received a copy of the GNU Lesser General Public
      15             :  * License along with FFmpeg; if not, write to the Free Software
      16             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      17             :  */
      18             : 
      19             : #include "libavcodec/mathops.h"
      20             : 
      21             : #include <stdlib.h>
      22             : 
      23           1 : int main(void)
      24             : {
      25             :     unsigned u;
      26             : 
      27       65537 :     for(u=0; u<65536; u++) {
      28       65536 :         unsigned s = u*u;
      29       65536 :         unsigned root = ff_sqrt(s);
      30       65536 :         unsigned root_m1 = ff_sqrt(s-1);
      31       65536 :         if (s && root != u) {
      32           0 :             fprintf(stderr, "ff_sqrt failed at %u with %u\n", s, root);
      33           0 :             return 1;
      34             :         }
      35       65536 :         if (u && root_m1 != u - 1) {
      36           0 :             fprintf(stderr, "ff_sqrt failed at %u with %u\n", s, root);
      37           0 :             return 1;
      38             :         }
      39             :     }
      40           1 :     return 0;
      41             : }

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