Compiler Error.

[Da0omph]

Apparently, I've been on away for too long. I can't even solve a simple compiler error.

#include <iostream>
#include <string>
#include <ctime>
using namespace std;

const int number_of_cards = 52;

int main() {
	string deck[number_of_cards] = {};
	string suits[] = {"Clubs", "Diamonds", "Hearts", "Spades"};
	string ranks[] = {"Ace", "2", "3", "4", "5", "6", "7", "8", "9", "10", "Jack", "Queen", "King"};
	//int value[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13};

	int index;
	for(int x = 0; x < 4; x++) {
		for(int i = 0; i < 13; i++) {
			deck[index++] = ranks[i] + " of " + suits[x];
		}
	}

	for(int x = 0; x < number_of_cards; x++)
		cout << deck[x] << endl;
	return 0;
}

Compiler: Visual C++ 2008
http://i158.photobucket.com/albums/t102/renji71/compilererror.jpg

'idelcarewar.exe': Loaded 'C:\Documents and Settings\Angel\Desktop\idelcarewar\Debug\idelcarewar.exe', Symbols loaded.
'idelcarewar.exe': Loaded 'C:\WINDOWS\system32\ntdll.dll'
'idelcarewar.exe': Loaded 'C:\WINDOWS\system32\kernel32.dll'
'idelcarewar.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.VC90.DebugCRT_1fc8b3b9a1e18e3b_9.0.30729.1_x-ww_f863c71f\msvcp90d.dll'
'idelcarewar.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.VC90.DebugCRT_1fc8b3b9a1e18e3b_9.0.30729.1_x-ww_f863c71f\msvcr90d.dll'
Run-Time Check Failure #3 - The variable 'index' is being used without being initialized.

[Bazzy]

The problem is what the error says "The variable 'index' is being used without being initialized."
It can't be clearer than that...
Lines 14 and 17

[filipe]

You've got to be kidding:

The variable 'index' is being used without being initialized.

EDIT: or what Bazzy said

[Da0omph]

Yeah, sorry. It's been a long day. I don't know what's wrong with me.