Hey I have recently needed to switch to Objective C and am using GNUstep shell to compile C writting on my PC. My problem is almost all of my programs crash the moment I enter an imput through scanf. Below is a simple program for a tic tac toe that. I quickly wrote it for myself as the other programs I was running were far to large to debug quickly and as I compile without a problem I feel like it is a GNUstep problem and not a programing problem (unless I am misunderstanding Objective C- C compatability) . If anyone could give me guidance on what the problem could be it would be very helpful.
Code:#include <stdio.h> #include <string.h> #include <stdlib.h> #include <math.h> int main() { int i; int p; //10 startticktack: printf ("123\n"); printf ("456\n"); printf ("789\n"); char board[10] = {69,69,69,69,69,69,69,69,69,69}; for (i=0 ; i<9 ; i++) { if (i%2 == 0) { returnx: scanf ("%d", p); //20 if (board[p]==69) {board[p]=88; // = X printf ("%c ", board[1]); printf ("%c ", board[2]); printf ("%c ", board[3], "\n"); printf ("%c ", board[4]); printf ("%c ", board[5]); printf ("%c ", board[6], "\n"); printf ("%c ", board[7]); printf ("%c ", board[8]); printf ("%c ", board[9], "\n"); } else {goto returnx;} } //30 else { returny: scanf ("%d", p); if (board[p]==69) {board[p]=89;// = Y printf ("%c ", board[1]); printf ("%c ", board[2]); printf ("%c ", board[3], "\n"); printf ("%c ", board[4]); printf ("%c ", board[5]); printf ("%c ", board[6], "\n"); printf ("%c ", board[7]); printf ("%c ", board[8]); printf ("%c ", board[9], "\n"); } else {goto returny;} } } if (board[1]==board[2] && board[2]==board[3]) {printf ("Winner on top row!", "\n");} if (board[4]==board[5] && board[5]==board[6]) {printf ("Winner on middle row!", "\n");} if (board[7]==board[8] && board[8]==board[9]) {printf ("Winner on bottom row!", "\n");} if (board[1]==board[4] && board[4]==board[7]) {printf ("Winner on the right!" "\n");} if (board[2]==board[5] && board[5]==board[8]) {printf ("Winner in the middle!" "\n");} if (board[3]==board[6] && board[6]==board[9]) {printf ("Winner on the left!" "\n");} if (board[1]==board[5] && board[5]==board[9]) {printf ("Winner on the diagonal!" "\n");} if (board[3]==board[5] && board[5]==board[7]) {printf ("Winner on the diagonal!" "\n");} printf ("Play again?"); char ans; int answer; scanf ("%c", ans); answer=ans; if (answer == 121) {goto startticktack;} char response; scanf ("%c", response); return 0; }
Originally Posted by Mrpringles
