/* This program is an exercise in function calling with passing by address/pointers, and how arrays
work in function calls
Source: Greg Perry, Absolute Beginners guide to C */

#include <stdio.h>

int changeSome(int i, float *newX, int Ary[]);

main()
{
int i = 10;
int cnt;
float x = 20.5;
int iAry[] = {10, 20, 30, 40, 50};
printf("Here are main's variables before the function:\n");
printf("i = %d\n", i);
printf("x = %.1f\n", x);
for(cnt = 0; cnt < 5; cnt++)
	{
	printf("iAry[%d] = %d\n", cnt, iAry[cnt]);
	}

changeSome(i, &x, iAry);
printf("Here are main()'s variables after the function call:\n");
printf("i = %d\n", i);
printf("x = %.1f\n", x);
for(cnt = 0; cnt < 5; cnt++)
	{
	printf("iAry[%d] = %d\n", cnt, iAry[cnt]);
	}

return 0;
}

int changeSome(int i, float *newX, int Ary[])
{
i = 47;
*newX = 47;

Ary[0] = 100;
Ary[1] = 200;
Ary[2] = 300;
Ary[3] = 400;
Ary[4] = 500;
return 0;
}