/*
 * Revised version of simple-array.c:
 *
 * Adds a function to print the array using pointers.
 *
 * Adds code to print pointers to various things.
 */
#include <stdio.h>
#include <stdlib.h>

#define ASIZE 10
#define SEED 5

void printarray(int size, int nums[size]) {
	printf("size of array in printarray %d\n", (int) sizeof(nums));
	for (int i = 0; i < size; ++i) {
		printf("nums[%d] is %d\n", i, nums[i]);
	}
}
void printarray2(int size, int *nums) {
	printf("size of array in printarray2 %d\n", (int) sizeof(nums));
	for (int * p = nums; p < nums+size; ++p) {
		printf("%d\n", *p);
	}
}
void fillwithrandom(int size, int nums[]) {
	srand(SEED);
	for (int i = 0; i < size; ++i) {
		nums[i] = rand();
	}
}

int main(void) {

	int a;
	int nums[ASIZE];
	int b;
	printf("size of array in main %d\n", (int) sizeof(nums));
	fillwithrandom(ASIZE, nums);
	printarray(ASIZE, nums);
	printarray2(ASIZE, nums);
	printf("enter index\n");
	int index;
	if (scanf("%d", &index) != 1) {
		printf("invalid\n");
		return 1; /* bail out */
	}
	if ((index < 0) || (index >= ASIZE)) {
		printf("out of bounds -- good luck\n");
	}
	printf("a at %p\n", &a);
	printf("b at %p\n", &b);
	printf("start of array %p\n", nums);
	printf("just past end %p\n", nums+ASIZE);
	printf("nums[index] %p\n", &nums[index]);
	nums[index] = 100;
	printarray(ASIZE, nums);

	return 0;
}