Thread: Windows crashing Magic Square

Okay, heres the deal. I have a magic square program I made for calculating a 3x3 magic square. Code compiles fine, runs almost fine. It starts to get the right values. But then it stops, throws a Windows Error. However, the program finishes , and displays the unfinished magic square. Heres the code. Note: I use MSVC++ for compiler.

Code:

#include <iostream>
using namespace std;

int main()
{
	int xval, x, size, maxsize;
	int y, i, j, magic[3][3];
	int xtemp, ytemp;
	xval = 1;
	size = 3;
	maxsize = size * size;
	

	for (i = 0; i < size; i++)
	{
		for (j = 0; j < size; j++)
		{
			magic[i][j] = 0;
		}	
	}
	
	y = 0;
	x = size/2;
	magic[y][x] = xval;
	xval++;
	maxsize--;
	
	while (maxsize > 0)
	{
		xtemp = x;
		ytemp = y;
		y--;
		x++;
	
		if (y < 0)
		{
			y = size-1;
		}
		if (x >= size)
		{
			x = 0;
		}
		if (magic[y][x] > 0)
		{
			ytemp++;
			magic[ytemp][xtemp] = xval;
			ytemp = y;
			xtemp = x;
		}
		else if (magic[y][x] == 0)
		{
			magic[y][x] = xval;
		}
		xval++;
		maxsize--;
	}
	
	for (i = 0; i < size; i++)
	{
		for (j = 0; j < size; j++)
		{
			cout <<	"  " << magic [i][j];	
		}
	}

	return 0;
}

Sorry for the lack of comments, i havent gotten there yet.

Edit: Feel free to edit the 3 to 5 for a 5x5 magic square. The thing gets even better. I dont understand how its doing what its doing...