/* Code for exercise 15.3. |  | "C++ Solutions--Companion to The C++ Programming Language, Third Edition" | by David Vandevoorde; Addison-Wesley 1998; ISBN 0-201-30965-3. | | Permission to use, copy, modify, distribute and sell this software | and its documentation for any purpose is hereby granted without fee. | The author makes no representations about the suitability of this | software for any purpose.  It is provided "as is" without express or | implied warranty. `----------------------------------------------------------------------*/#ifndef VIRTUALPLAYER_H#define VIRTUALPLAYER_H#include "Board.H"struct VirtualPlayer {   VirtualPlayer(Color c): color_(c), maxdepth_(6) {}   void get_move(Board const&, int &row, int &col);private:   int eval_self(Board const&, int r, int c,                 int best, int worst, int depth);   int eval_opponent(Board const&, int r, int c,                     int best, int worst, int depth);   int eval_end_of_game(Board const&);   int value_of(Board const&);   Color color_;   int maxdepth_;};#endif