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41 lines
1.3 KiB
41 lines
1.3 KiB
/* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavcodec/mathops.h" |
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#include <stdlib.h> |
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int main(void) |
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{ |
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unsigned u; |
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for(u=0; u<65536; u++) { |
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unsigned s = u*u; |
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unsigned root = ff_sqrt(s); |
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unsigned root_m1 = ff_sqrt(s-1); |
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if (s && root != u) { |
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fprintf(stderr, "ff_sqrt failed at %u with %u\n", s, root); |
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return 1; |
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} |
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if (u && root_m1 != u - 1) { |
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fprintf(stderr, "ff_sqrt failed at %u with %u\n", s, root); |
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return 1; |
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} |
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} |
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return 0; |
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}
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