#include<stdio.h>


struct foo_struct
{
    int x;
    float y;
};

void init_foo_struct ( struct foo_struct * f, int a, float b )
{
    f->x = a;
    f->y = b;
}

void print_foo_struct ( struct foo_struct * f )
{
    printf ( " x = %d, y = %f\n", f->x, f->y );
}

int main ()
{
    struct foo_struct f;
    /* use functions */
    init_foo_struct( &f, 42, 3.14 );
    print_foo_struct( &f );
    /* or directly access */
    f.x = 11;
    f.y = 1.01;
    printf ( " x = %03d, y = %07.3f\n", f.x, f.y );
    return 0;
}