codeblocks and bloodshed dev c++ issue..

[codemunkee]

Hi there, I am using a different compiler now, Codeblocks, because I want to try a new environment..
anyways, here's the problem.
whenever I try to run my code in cblocks,

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int i, j;
    int number = 0;
    int table[2][2];

    for (i = 0; i < 3;){
        for (j = 0; j < 3; j++){
            cout<<number<<" j = "<<j<<" i = "<<i<<endl;
            table [i][j] =number;
            number++;
        }
        i++;
        cout<<i<<endl;
    }

char y;
    y = getch();

    return 0;
}

the variable "i" at the end of the code is equal to 6 instead of my expected output of 2.
I don't understand the output.. lol
So I have decided to use my dev c++ compiler, and it works fine.. But I want use Cblocks because I need some functions on it in my project..

help me out guys.. :((

[Peter87]

table is a 2x2 array. Array indexing starts at 0 so when you access table[2][0], table[2][1], table[2][2], table[1][2] and table[0][2] you are out of bounds. If you want 3x3 elements in table you should declare it as int table[3][3];.

[codemunkee]

` oh thanks Peter87... LOL.. I feel so stupid now.. xD

but I still wonder why dev c++ creates a different output..

[Peter87]

If your program is incorrect you can't expect it to work correctly.

The difference is probably because the compilers put the variables at different locations in memory. When you write to the array out of bounds you overwrite memory outside the array. If a variable happens to be stored at that memory location it's value will be changed.

[codemunkee]

` oh.. thanks mate, I got your point..
Thank you so much for the help!
I can now proceed to my tic tac toe program.. :)