text: /*
   * 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;
  }
  