#include <stdio.h> 
#include <float.h> 

int main(void) 
{ 
   float x; 
   double y = 1.5e-100; 

   printf("Status 87 before error: %x\n", _status87()); 

   x = y;  /* <-- force an error to occur */ 
   y = x; 

   printf("Status 87 after error : %x\n", _status87()); 
   return 0; 
}