Tic, tac, toe command line

/////You gonna get raped
#include <iostream>
//#include <cmath>
//#include <vector>
//#include <cstdlib>
//#include <iomanip>
//#include "std_lib_facilities.h"

using namespace std;

//////Tic, tac, toe for command line//////

//      This program is free software; you can redistribute it and/or modify
//      it under the terms of the GNU General Public License as published by
//      the Free Software Foundation; either version 2 of the License, or
//      (at your option) any later version.
//
//      This program is distributed in the hope that it will be useful,
//      but WITHOUT ANY WARRANTY; without even the implied warranty of
//      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//      GNU General Public License for more details.
//
//      You should have received a copy of the GNU General Public License
//      along with this program; if not, write to the Free Software
//      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
//      MA 02110-1301, USA.
///////////////////////////////// >inb4 nobody wants your piece of shit code

//class wrong_x_or_o { };
class false_win { };
class already_used { };
class bad_pos_input { };

string pos1 = "1";
string pos2 = "2";
string pos3 = "3";
string pos4 = "4";
string pos5 = "5";
string pos6 = "6";
string pos7 = "7";
string pos8 = "8";
string pos9 = "9";
bool pos1_changed = false;
bool pos2_changed = false;
bool pos3_changed = false;
bool pos4_changed = false;
bool pos5_changed = false;
bool pos6_changed = false;
bool pos7_changed = false;
bool pos8_changed = false;
bool pos9_changed = false;
bool win=false;
string winner="nobody";
int checks = 0;
bool tie = false;

void change_it(int pos_specify, string x_or_o) {
//  if(x_or_o != "x" && x_or_o !="X" && x_or_o != "o" && x_or_o != "O") {
//      throw wrong_x_or_o(); }
//  if(x_or_o == "x") x_or_o="X";
//  if(x_or_o == "o") x_or_o="O";
    if(!cin) throw bad_pos_input(); //check if anything but int
    if(pos_specify>9 || pos_specify<1) throw bad_pos_input();
    if(pos_specify==1) {
        if(pos1_changed==true) throw already_used();
        pos1=x_or_o;
        pos1_changed=true;
    }

    if(pos_specify==2) {
        if(pos2_changed==true) throw already_used();
        pos2=x_or_o;
        pos2_changed=true;
    }

    if(pos_specify==3) {
        if(pos3_changed==true) throw already_used();
        pos3=x_or_o;
        pos3_changed=true;
    }

    if(pos_specify==4) {
        if(pos4_changed==true) throw already_used();
        pos4=x_or_o;
        pos4_changed=true;
    }

    if(pos_specify==5) {
        if(pos5_changed==true) throw already_used();
        pos5=x_or_o;
        pos5_changed=true;
    }

    if(pos_specify==6) {
        if(pos6_changed==true) throw already_used();
        pos6=x_or_o;
        pos6_changed=true;
    }

    if(pos_specify==7) {
        if(pos7_changed==true) throw already_used();
        pos7=x_or_o;
        pos7_changed=true;
    }

    if(pos_specify==8) {
        if(pos8_changed==true) throw already_used();
        pos8=x_or_o;
        pos8_changed=true;
    }

    if(pos_specify==9) {
        if(pos9_changed==true) throw already_used();
        pos9=x_or_o;
        pos9_changed=true;
    }
}

void draw_board() {
    cout << pos1 << "\t" << pos2 << "\t" << pos3 << "\n" << pos4
    << "\t" << pos5 << "\t" << pos6 << "\n" << pos7 << "\t"
    << pos8 << "\t" << pos9 << endl;
}

void win_logic_append() {
    if(winner=="nobody") throw false_win();
    cout << winner << " wins!\n\n";
    win=true;
}

int main() {
    //string pos1, pos2, pos3, pos4, pos5, pos6, pos7, pos8, pos9 = "f";

    //draw the board
    draw_board();

    //gameplay
    int pos_specify = 0;
    string x_or_o = " ";
    int count = 1;
    string turn = " ";

    cout << "\nX plays first.\n";

    while(win==false) {
        //////////determine turn
        if( (count%2)==0 ) { //if even
            //change_it(pos_specify, "O");
            turn="O";
            ++count;
        }
        else { //if odd
            //change_it(pos_specify, "X");
            turn="X";
            ++count;
        }
        //end of determine turn

        cout << "\n\n" << turn << "'s turn. What position? (1-9)\n";
        cin >> pos_specify;
        //cout << "What would you like to change it to? (X or O)\n";
        try {
            cout << "\n\n";
            change_it(pos_specify, turn);
            draw_board();
        }
        /*catch (wrong_x_or_o) {
            cerr << "Wrong input for X or O. It may only be X or O. Try again.\n";
        }*/
        catch (already_used) {
            cout << "That square is occupied. Try a different one.\n";
        }
        catch (bad_pos_input) {
            win=true; //not really, just want to terminate loop
            //tie=false;
            cout << "Bad input for your position. It can only be digits 1-9.\n";
        }
        try {
            //logic
            if(pos1==pos2 && pos2==pos3) {
                winner=pos1;
                win_logic_append(); }
            else if(count==9) ++checks;
            if(pos4==pos5 && pos5==pos6) {
                winner=pos4;
                win_logic_append(); }
            else if(count==9) ++checks;
            if(pos7==pos8 && pos8==pos9) {
                winner=pos7;
                win_logic_append(); }
            else if(count==9) ++checks;
            if(pos1==pos4 && pos4==pos7) {
                winner=pos1;
                win_logic_append(); }
            else if(count==9) ++checks;
            if(pos2==pos5 && pos5==pos8) {
                winner=pos2;
                win_logic_append(); }
            else if(count==9) ++checks;
            if(pos3==pos6 && pos6==pos9) {
                winner=pos3;
                win_logic_append(); }
            else if(count==9) ++checks;
            if(pos1==pos5 && pos5==pos9) {
                winner=pos1;
                win_logic_append(); }
            else if(count==9) ++checks;
            if(pos3==pos5 && pos5==pos7) {
                winner=pos3;
                win_logic_append(); }
            else if(count==9) ++checks;
            if(checks==8) {
                tie=true;
                win=true;
                cout << "\nTie game!\n";
            }
        }
        catch (false_win) {cerr << "Error: False win.\n";}
    }

    return 0;
}
//////I dun told you was gonna get raped