Mark all compile-time constants as constexpr.

[stockfish] / src / position.cpp

diff --git a/src/position.cpp b/src/position.cpp
index 9cec2c14ff9646882a06f3abd02290248196d8f2..c0e2232c08dee5c92c235d24408c99866dee88a3 100644 (file)
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -52,8 +52,8 @@ namespace {
 
 const string PieceToChar(" PNBRQK  pnbrqk");
 
-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 };
+constexpr 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 };
 
 // min_attacker() is a helper function used by see_ge() to locate the least
 // valuable attacker for the side to move, remove the attacker we just found
@@ -1146,7 +1146,7 @@ void Position::flip() {
 
 bool Position::pos_is_ok() const {
 
-  const bool Fast = true; // Quick (default) or full check?
+  constexpr bool Fast = true; // Quick (default) or full check?
 
   if (   (sideToMove != WHITE && sideToMove != BLACK)
       || piece_on(square<KING>(WHITE)) != W_KING