Solution for Exercise 12-22

ex1222

#include <stdio.h>

int main()
{
    char tictactoe[3][3] = {
        '.', '.', '.',
        '.', 'X', '.',
        '.', '.', '.'
    };
    int x,y;

/* display game board */
    puts("Ready to play Tic-Tac-Toe?");
    for(x=0;x<3;x++)
    {
        for(y=0;y<3;y++)
            printf("%c\t",tictactoe[x][y]);
        putchar('\n');
    }
    return(0);
}

Notes

* This code illustrates one of those times where it's easier to declare an initialized array than to construct code that fills the array. For a larger array, such as a chessboard, I would still initialized it using code, albeit in a function.

* Code::Blocks may throw a "missing braces" warning at you. That's okay. Code::Blocks activates all warnings for your C code, including one called -Wmissing-braces. The braces are included in the code, so you can freely ignore the warning. (This is a great example of a compiler warning you don't heed.)

Exercise ex1223 →