/*
 * Simple program to illustrate working on an array using either indices
 * or pointers.
 */
#include <stdio.h>

/* print elements of array using index */
void foobar(int a[], int sz) {
	printf("in foobar sizeof a %d\n", (int) sizeof a);
	for (int i = 0; i < sz; ++i) {
		printf("a[%d] is %d\n", i, a[i]);
	}
}

/* print elements of array using pointer */
void barfoo(int * a, int sz) {
	printf("in barfoo sizeof a %d\n", (int) sizeof a);
	for (int * p = a; p < a+sz; ++p) {
		printf("a[%d] is %d\n", (int) (p-a), *p);
	}
}

/* main program */
#define ARRAYSIZE 10
int main(void) {
	int a[ARRAYSIZE];
	printf("sizeof a %d\n", (int) sizeof a);
	/* a is not initialized so what's printed will be semi-random junk */
	foobar(a, ARRAYSIZE);
	barfoo(a, ARRAYSIZE);
	return 0;
}