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Syntactic sugar to loop across pieces

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Also add some comments to the new operator~(Piece).

No functional change.
This commit is contained in:
Marco Costalba
2016-09-04 15:29:11 +02:00
parent ca6c9f85a5
commit e340ce221c
2 changed files with 22 additions and 23 deletions
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7
src/types.h
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@@ -205,6 +205,9 @@ enum Piece {
PIECE_NB = 16
};
const Piece Pieces[] = { W_PAWN, W_KNIGHT, W_BISHOP, W_ROOK, W_QUEEN, W_KING,
B_PAWN, B_KNIGHT, B_BISHOP, B_ROOK, B_QUEEN, B_KING };
enum Depth {
ONE_PLY = 1,
@@ -329,7 +332,7 @@ inline Score operator/(Score s, int i) {
extern Value PieceValue[PHASE_NB][PIECE_NB];
inline Color operator~(Color c) {
return Color(c ^ BLACK);
return Color(c ^ BLACK); // Toggle color
}
inline Square operator~(Square s) {
@@ -337,7 +340,7 @@ inline Square operator~(Square s) {
}
inline Piece operator~(Piece pc) {
return Piece(pc ^ 8);
return Piece(pc ^ 8); // Swap color of piece B_KNIGHT -> W_KNIGHT
}
inline CastlingRight operator|(Color c, CastlingSide s) {