#include <stdio.h>
#include <stdlib.h>


typedef struct
{
	int num;
	int den;
} fraction_t;


void printFraction_v1(fraction_t F)
{
	printf("%2d\n", F.num);
	printf("--\n");
	printf("%2d\n", F.den);
	printf("\n");
}

// This one uses pointers
void printFraction_v2(fraction_t* fp)
{
	fp-> num = 5;
	printf("%2d\n", fp->num);
	printf("--\n");
	printf("%2d\n", fp->den);
	printf("\n");
}

int main()
{
	fraction_t F;
	
	F.num=1; // initialize the fraction F to 1/2
	F.den=2;

	fraction_t* p; // pointer to a type fraction_t (which is a struct)
	
	// initialize the pointer
	p = &F;  // p points to F (or the memory address where F is stored)

	// Do the same thing in two different ways
	printFraction_v1(F); 
	printFraction_v2(p); // this one uses a pointer

	system("pause");
}