Larger_of

#include <stdio.h>
void larger_of(double *x, double *y);

int main(void){
    double a=123.0009;
    double b=123.1239;
    double *ptr1, *ptr2;
    ptr1=&a;
    ptr2=&b;
    printf("Originally, a = %f and b = %f.\n", a ,b);

    larger_of(ptr1,ptr2);

    printf("Now, a = %f and b = %f.\n", a, b);

}

void larger_of(double *x, double *y){
    if(x<y){
        *y=*x;
    } else{
        *x=*y;
    }

}