Thread: Segmentation fault in arrays

I'm trying to assign a '?' to each of my character in the matrix.
Following is my code:

Code:

int main() {

char board[3][3];

for (int i = 0; i < 3; i++){

for (int j = 0; i < 3; j++) {

board[i][j] = '?';

}

}

printf("%c\n", board[2][2]);

return 0;

}

The code compiles but when I run it, I get a segmentation fault. Can anyone help me with what's wrong with this code?

Originally Posted by john.c

Look very carefully at every single character. Do you see it?

Misleading. "every single character" Every data character, or code character?

Actually:
Look very carefully at the second for() loop statement! Now do you see it?

Code:

for (int j = 0; i < 3; j++) 

Why here "i"?
I get no a segmentation fault but I see also no output. Your indentation style is not beneficial.
For "printf" is missing <stdio.h>. Your code with printf:

Code:

for (int i = 0; i < 3; i++)
{
for (int j = 0; i < 3; j++) 
{
board[i][j] = '?';
printf("%c ", board[i][j]);
}
}

And this is the output now:


And now:

Code:

for (int i = 0; i < 3; i++)
{

for (int j = 0; j < 3; j++) 
{

board[i][j] = '?';
printf("%c ", board[i][j]);
}
}

And the output:


Ten instead of nine.