}
-/// Position::do_setup_move() makes a permanent move on the board.
-/// It should be used when setting up a position on board.
-/// You can't undo the move.
+/// Position::do_setup_move() makes a permanent move on the board. It should
+/// be used when setting up a position on board. You can't undo the move.
void Position::do_setup_move(Move m) {
startPosPlyCounter++;
// Our StateInfo newSt is about going out of scope so copy
- // its content inside pos before it disappears.
+ // its content before it disappears.
detach();
}
+
/// Position::do_move() makes a move, and saves all information necessary
-/// to a StateInfo object. The move is assumed to be legal.
-/// Pseudo-legal moves should be filtered out before this function is called.
+/// to a StateInfo object. The move is assumed to be legal. Pseudo-legal
+/// moves should be filtered out before this function is called.
void Position::do_move(Move m, StateInfo& newSt) {
}
-/// Position::flipped_copy() makes a copy of the input position, but with
-/// the white and black sides reversed. This is only useful for debugging,
-/// especially for finding evaluation symmetry bugs.
+/// Position::flip() flips position with the white and black sides reversed. This
+/// is only useful for debugging especially for finding evaluation symmetry bugs.
+
+void Position::flip() {
-void Position::flipped_copy(const Position& pos) {
+ assert(is_ok());
- assert(pos.is_ok());
+ // Make a copy of current position before to start changing
+ const Position pos(*this, threadID);
clear();
threadID = pos.thread();