Tic Tac Toe Program (please help)

[Andrew K]

Here is my code:

#include <stdio.h>


void printBoard();
void checkDiagonal();
void checkHrzVrt();


int main(){
    int i = 0;                                   /* Loop counter                         */
    int player = 0;                              /* Player number - 1 or 2               */
    int go = 0;                                  /* Square selection number for turn     */
    int row = 0;                                 /* Row index for a square               */  
    int column = 0;                              /* Column index for a square            */
    int line = 0;                                /* Row or column index in checking loop */
    int winner = 0;                              /* The winning player                   */
    char board[3][3] = {{'1','2','3'},           /* Initial values are reference numbers */
                        {'4','5','6'},           /* used to select a vacant square for   */
                        {'7','8','9'}};          /* a turn.                              */


    /* The main game loop. The game continues for up to 9 turns */
    /* as long as there is no winner.                           */
    for( i = 0; i < 9 && winner == 0; i++){
        /* Display the board */
        printBoard();
        /* Select player */
        player = i%2 + 1;
        
        /* Get valid player square selection */
        do{
            printf("\n[Player %d] Where do you want to place your '%c'? ", player,(player==1)?'X':'O');
            scanf("%d", &go);
            
            row = --go/3;                                 /* Get row index of square      */
            column = go%3;                                /* Get column index of square   */
        }
        while(go < 0 || go > 9 || board[row][column] > '9');
        
            board[row][column] = (player == 1) ? 'X' : 'O';     /* Insert player symbol   */
        
            /* Check for a winning line */
            checkDiagonal();
        else
            /* Check rows and columns for a winning line */
            checkHrzVrt();
    }
    /* Game over. Display the final board. */
    printBoard();


    /* Display result message */
    if(winner == 0)
       printf("\nDRAW\n");
    else
       printf("\nCongratulations, player %d. You win!\n", winner);
}


void printBoard(){
    printf("\n");
    printf("|%c|%c|%c|\n", board[0][0], board[0][1], board[0][2]);
    printf("|%c|%c|%c|\n", board[1][0], board[1][1], board[1][2]);
    printf("|%c|%c|%c|\n", board[2][0], board[2][1], board[2][2]);
}


void checkDiagonal(){
    if((board[0][0] == board[1][1] && board[0][0] == board[2][2]) ||
    (board[0][2] == board[1][1] && board[0][2] == board[2][0]))
        winner = player;
}


void checkHrzVrt(){
    for(line = 0; line <= 2; line ++)
        if((board[line][0] == board[line][1] && board[line][0] == board[line][2])||
          (board[0][line] == board[1][line] && board[0][line] == board[2][line]))
            winner = player;
}

I would like the same code but without the ternary conditional operator at line 40. Please reply if you know how to do this.

[Hodor]

Change it to an if with an else

Edit: it looks awfully like the code in the book "Beginning C"