Answer:
Here's an example code for a tic tac toe game in C that allows you to clear the board and display the board. This code uses a 2D array to represent the game board.
```
#include <stdio.h>
void clearBoard(char board[3][3]) {
int i, j;
for (i = 0; i < 3; i++) {
for (j = 0; j < 3; j++) {
board[i][j] = ' ';
}
}
}
void displayBoard(char board[3][3]) {
int i, j;
for (i = 0; i < 3; i++) {
for (j = 0; j < 3; j++) {
printf(" %c ", board[i][j]);
if (j < 2)
printf("
}
printf("\\");
if (i < 2) ---
}
}
int main() {
char board[3][3];
clearBoard(board);
displayBoard(board);
return 0;
}
```
The `clearBoard` function initializes all elements of the `board` array to empty spaces. The `displayBoard` function prints the current state of the `board` array to the console.
In the `main` function, we first initialize the `board` array by calling `clearBoard`. We then display the empty board by calling `displayBoard`.