Nested for loop array initialization

Question

I want to initialize a 2-d array gameBoard and display the result on screen. Will the following nested for loops work? I'm having trouble displaying it on the screen so I can't tell if this is working correctly or not.

for (NSInteger x = 0; x <= 2; x++)
{
    for (NSInteger y = 0; y <=2; y++)
    {
        gameBoard [x][y] = 0;
        NSLog(@"%ld"), gameBoard [x][y];
    }
}

FWIW, this is going to log column-major. Generally you want the row loop (y) to be the outer loop. — smparkes
– smparkes, Commented Jan 27, 2012 at 1:01

Carl Norum · Accepted Answer · 2012-01-27 00:57:12Z

1

Your NSLog line is wrong, but other than that you're ok (assuming your array is appropriately sized, that is). Change the log line to:

NSLog(@"%ld", gameBoard[x][y]);

to get some actual output. Now that I look again, I think your example won't even compile cleanly the way it is.

answered Jan 27, 2012 at 0:57

Carl Norum

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1 Comment

ben3019201 Over a year ago

Ops I should have realized my parenthesis mistake. Yeah I was getting an error but it was compiling something crazy ha

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