Thread: error

When i use

Code:

nth_next_game(x, gamestate[9]);

I get this error;

Code:

C:\Program Files\Microsoft Visual Studio\MyProjects\Tic Tac Toe\MichaelNeill.cpp(131) : error C2664: 'nth_next_game' : cannot convert parameter 2 from 'int' to 'int []'

Any know whats wrong with it. Here is my code.

Code:

 
#include <iostream>

using namespace std;



int num_of_suc;
int nth_next_move(int n, int GameState[9]);
void nth_next_game(int n, int GameState[9], int NextGame[9]);
int number_of_moves(int GameState[9]);
void not_in_state(int GameState[], int Return[]);
bool member(int e, int GameState[9]);
bool safe(int gamestate[9]);
bool game=false;
void drawboard(int[]);
int select_computer_move(int []);
void playermove(int, int []);







	void nth_next_game(int n, int GameState[9], int NextGame[9])
	{
		for(int i=0;i<9;i++)
		{
			if(i<number_of_moves(GameState))
				NextGame[i]=GameState[i];
			else if (i == number_of_moves(GameState))
				NextGame[i]=nth_next_move(n,GameState);
			else
				NextGame[i]=-1;
		}
		
	}



	int number_of_moves(int GameState[9])
	{
		int i=0;
		while(GameState[i] != -1)
			i++;

		return i;
	}

	int nth_next_move(int n, int GameState[9])
	{
		int NotIn[9];
		not_in_state(GameState,NotIn);
		return NotIn[n-1];
	} 




	void not_in_state(int GameState[], int ret[])
	{
		int Counter=0;

		for(int i=1;i<=9;i++)
		if(!member(i,GameState))
		{
			ret[Counter]=i;
			Counter++;
		}

		for(i=Counter;i<9;i++)
			ret[i] = -1;

	}


	bool member(int e, int GameState[9])
	{
		bool flag=false;

		for(int i=0;i<9;i++)
			if(GameState[i]==e)
				flag =true;

		return flag;
	}

	bool safe (int gamestate[9])
	{
		//o's move only!!!!!!

		bool safeflag=false;
		num_of_suc=9-number_of_moves(gamestate);

		int nextgame[9];

		if (number_of_moves(gamestate)%2==1)
		{
			for (int i=1; i<=num_of_suc; i++)
			{
				nth_next_game(i, gamestate, nextgame);
				if (safe(nextgame))
					safeflag=true;
			}
		}
		else // x's move only!!!!!!
		{
			bool safeflag=true;

			if (number_of_moves(gamestate)%2==1)
			{
				for (int i=1; i<=num_of_suc; i++)
				{
					nth_next_game(i, gamestate, nextgame);
					if (!safe(nextgame))
						safeflag=false;
				}
			}
		}
		return 0;
	}



	int select_computer_move(int n, int game[9], int gamestate[9])
	{
		for (n=0; n<=9; n++)
		{
			if (safe(game))
			{
				nth_next_game(n, game[n], gamestate[n]);
			}
		}


		return 0;
	}

	void playermove(int m, int gamestate[9])
	{
		if ((m==1)&&(gamestate[0]!=0)&&(gamestate[0]!=1))
			gamestate[0]=0;
		else

		if ((m==2)&&(gamestate[1]!=0)&&(gamestate[1]!=1))
			gamestate[1]=0;
		else

		if ((m==3)&&(gamestate[2]!=0)&&(gamestate[2]!=1))
			gamestate[2]=0;
		else

		if ((m==4)&&(gamestate[3]!=0)&&(gamestate[3]!=1))
			gamestate[3]=0;
		else

		if ((m==5)&&(gamestate[4]!=0)&&(gamestate[4]!=1))
			gamestate[4]=0;
		else

		if ((m==6)&&(gamestate[5]!=0)&&(gamestate[5]!=1))
			gamestate[5]=0;
		else

		if ((m==7)&&(gamestate[6]!=0)&&(gamestate[6]!=1))
			gamestate[6]=0;
		else

		if ((m==8)&&(gamestate[7]!=0)&&(gamestate[7]!=1))
			gamestate[7]=0;
		else

		if ((m==9)&&(gamestate[8]!=0)&&(gamestate[8]!=1))
			gamestate[8]=0;
	}

	////////////////////////////////////////////////////
	//////////  Main Funciton  /////////////////////////
	////////////////////////////////////////////////////

	int main()
	{
		int gamestate[9]={-1,-1,-1,-1,-1,-1,-1,-1,-1};

		char x;

		cout << "Would you like to play a game of Tic Tac Toe (Y/N)?" << endl;

		cin >> x;

		if (x=='y')
			game=false;
		else
			if (x=='n')
				game=true;

		while (!game)
		{
			for (int i=0; i<=9; i++)
			{
				if ((i%2)==0)
				{
					int x;

					cin >> x;

					playermove(x, gamestate[9]);
				}else

				if ((i%2)!=0)
				{
					selct_computer_move(gamestate[9]);
				}
			}
		}

		return 0;

	}

o this is a tic tac toe game

too lazy to trace through ur code but it appears u are passing the array in wrong..

nth_next_game(x, gamestate[9]);

gamestate[9] is a value in gamestate at index 9

if u want to pass the whole array try

nth_next_game(x, gamestate);
when u are inside the function then u can access the individual values in the array..

hope this helps alittle..

edit: ah i was beatin' to the punch

Yeah i remembered that my teacher did that, so i fixed it. Um now when i compile i get this error message.

Code:

MichaelNeill.obj : error LNK2001: unresolved external symbol "int __cdecl select_computer_move(int * const)" (?select_computer_move@@YAHQAH@Z)

Any suggestions?

Unresolved external symbol usually means that your declaration and definition of a function or variable don't match. In this case, you declare select_computer_move as (int []) but define it as (int, int [], int [])

how can that be so when i declared it as select_computer_move(int []) and defined it as select_computer_move(gamestate); and gamestate is an array?

and it tells me i have one unresolved exturnal.