#include <stdio.h>

int main(void)
{
    int val1 = 123456789;
    float val2 = val1;
    float res;
   
    printf("%d - %f - %d\n", val1, val2, (int)val2);
    printf("Der Rundungsfehler lautet\n: ");
   
    res = val2- (int)val1;
    printf("%f\n" , res);

   printf("Der richtige Rundungsfehler lautet: %d\n", (int)val2 - val1);
   
   return 0;
}