board.h

#include "pos.h"

void binary_int(unsigned int n);

/*a square, either empty, black, or white*/

enum square {

EMPTY,

BLACK,

WHITE

};

typedef enum square square;

/*a board representation, either done with enums or bits*/

union board_rep {

enum square** cells;

unsigned int* bits;

};

typedef union board_rep board_rep;

/*a tag to store the kind of board representation being used*/

enum type {

CELLS, BITS

};

/*a board with a board representation, tag for the rep, and # rows /cols*/

struct board {

unsigned int nrows, ncols;

enum type type;

board_rep u;

};

typedef struct board board;

/*creates a new nrows by ncols board with the given certain type of rep*/

board* board_new(unsigned int nrows, unsigned int ncols, enum type type);

/*frees the given board*/

void board_free(board* b);

/*prints the given board*/

void board_show(board* b);

/*gets a square from the board given a pos*/

square board_get(board* b, pos p);

/*sets a square at pos p to the given square s*/

void board_set(board* b, pos p, square s);

/*prints a label given an index*/

void print_label(unsigned n);