t/ieee754.c

   1 #include <stdio.h>
   2 #include "../lib/ieee754.h"
   3
   4 static double values[] = { -17.23, 17.23, 123.4567, 98765.4321,
   5         3.14159265358979323, 0.0 };
   6
   7 int main(int argc, char *argv[])
   8 {
   9         uint64_t i;
  10         double f, delta;
  11         int j, differences = 0;
  12
  13         j = 0;
  14         do {
  15                 i = fio_double_to_uint64(values[j]);
  16                 f = fio_uint64_to_double(i);
  17                 delta = values[j] - f;
  18                 printf("%26.20lf -> %26.20lf, delta = %26.20lf\n", values[j],
  19                         f, delta);
  20                 if (f != values[j])
  21                         differences++;
  22                 j++;
  23         } while (values[j] != 0.0);
  24
  25         return differences;
  26 }