An array of pointers to 2d arrays in C-CodePudding

I was assigned a mission to create some kind of tic-tac-toe game, in which the player can reverse the game by inputing a negative number of the amount of turns he wants to take the game back in time. And so, I figured i'd need to save each turn of the game in some kind of array that I could then later on approach if I need to.

To sum it up, I need to declare an array of pointers to 2d arrays, and I have no clue how to do that. Heres the code:code if I guessed it right and it is the way of declaring it, can u find any way that it would not work?

CodePudding user response：

typedef struct
{
    // something here, probably...
    int     field[N][N]; // or something similar
    Player  turn;        // whose turn it is now?
    // any other data you need
} Board;

Board   gameHistory[100];  // array of Board, fixed-size
// or ...
Board*  gameHistory;       // points into an array of Board, any size
// or ...
Board*  gameHistory[100];  // array of pointers to Board, fixed size
// or ...
Board** gameHistory;       // points into an array of pointers to Board, any size

Look ma, no pointers to 2D arrays!

CodePudding user response：

int (*arr[M])[N][N];

is what you ask for, but I am quite sure it is not what you actually need