1#include <stdlib.h>
2#include <stdio.h>
3#include <float.h>
4
5#include "util/u_math.h"
6#include "util/u_half.h"
7
8int
9main(int argc, char **argv)
10{
11   unsigned i;
12   unsigned roundtrip_fails = 0;
13
14   for(i = 0; i < 1 << 16; ++i)
15   {
16      uint16_t h = (uint16_t) i;
17      union fi f;
18      uint16_t rh;
19
20      f.f = util_half_to_float(h);
21      rh = util_float_to_half(f.f);
22
23      if (h != rh && !(util_is_half_nan(h) && util_is_half_nan(rh))) {
24         printf("Roundtrip failed: %x -> %x = %f -> %x\n", h, f.ui, f.f, rh);
25         ++roundtrip_fails;
26      }
27   }
28
29   if(roundtrip_fails)
30      printf("Failure! %u/65536 half floats failed a conversion to float and back.\n", roundtrip_fails);
31   else
32      printf("Success!\n");
33
34   return 0;
35}
36