Mark all compile-time constants as constexpr.

[stockfish] / src / types.h

diff --git a/src/types.h b/src/types.h
index 3cb93a649a6e5f3c0d2e4062675675b8684664ba..2cf52ef123ef9694d9aca8772ed4b9f0183295b8 100644 (file)
--- a/src/types.h
+++ b/src/types.h
@@ -2,7 +2,7 @@
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
-  Copyright (C) 2015-2017 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+  Copyright (C) 2015-2018 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -80,28 +80,28 @@
 #endif
 
 #ifdef USE_POPCNT
-const bool HasPopCnt = true;
+constexpr bool HasPopCnt = true;
 #else
-const bool HasPopCnt = false;
+constexpr bool HasPopCnt = false;
 #endif
 
 #ifdef USE_PEXT
-const bool HasPext = true;
+constexpr bool HasPext = true;
 #else
-const bool HasPext = false;
+constexpr bool HasPext = false;
 #endif
 
 #ifdef IS_64BIT
-const bool Is64Bit = true;
+constexpr bool Is64Bit = true;
 #else
-const bool Is64Bit = false;
+constexpr bool Is64Bit = false;
 #endif
 
 typedef uint64_t Key;
 typedef uint64_t Bitboard;
 
-const int MAX_MOVES = 256;
-const int MAX_PLY   = 128;
+constexpr int MAX_MOVES = 256;
+constexpr int MAX_PLY   = 128;
 
 /// A move needs 16 bits to be stored
 ///
@@ -195,7 +195,6 @@ enum Value : int {
 enum PieceType {
   NO_PIECE_TYPE, PAWN, KNIGHT, BISHOP, ROOK, QUEEN, KING,
   ALL_PIECES = 0,
-  QUEEN_DIAGONAL = 7,
   PIECE_TYPE_NB = 8
 };