#include <math.h>
#include <stdio.h>

int main( int argc,char * argv[ ] )
{

  double res;
  
  union {
    unsigned long long l;
    double d;
  } op1, op2;

  op1.l = 0x7fefffffffffffff;
  op2.l = 0x0000000000000001;  

  printf("%llx %llx\n", op1.l, op2.l);
  
  res = remainder(op1.d, op2.d);

  printf("%llx\n", res);

}