diff options
Diffstat (limited to 'libavcodec/mathops.c')
-rw-r--r-- | libavcodec/mathops.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libavcodec/mathops.c b/libavcodec/mathops.c new file mode 100644 index 0000000..31c8e69 --- /dev/null +++ b/libavcodec/mathops.c @@ -0,0 +1,26 @@ +#include "mathops.h" + +#ifdef TEST + +#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; +} +#endif /* TEST */ |