X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Ftypes.h;h=37ce343a4da94d069e385b54684ee7d196487158;hb=564456a6a824bfca26d6d9af5b35a055eb9fc6c2;hp=02cd19def775ab25fee2da23b63ebd19350330b1;hpb=c4a1390f4e485b8b6a2cf43504a968a3c8a4317d;p=stockfish

diff --git a/src/types.h b/src/types.h
index 02cd19de..37ce343a 100644
--- a/src/types.h
+++ b/src/types.h
@@ -1,6 +1,6 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
-  Copyright (C) 2004-2021 The Stockfish developers (see AUTHORS file)
+  Copyright (C) 2004-2023 The Stockfish developers (see AUTHORS file)
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -103,8 +103,8 @@ constexpr bool Is64Bit = true;
 constexpr bool Is64Bit = false;
 #endif
 
-typedef uint64_t Key;
-typedef uint64_t Bitboard;
+using Key = uint64_t;
+using Bitboard = uint64_t;
 
 constexpr int MAX_MOVES = 256;
 constexpr int MAX_PLY   = 246;
@@ -173,11 +173,6 @@ enum Bound {
   BOUND_EXACT = BOUND_UPPER | BOUND_LOWER
 };
 
-enum ExplosionState {
-  EXPLOSION_NONE,
-  MUST_CALM_DOWN
-};
-
 enum Value : int {
   VALUE_ZERO      = 0,
   VALUE_DRAW      = 0,
@@ -191,6 +186,9 @@ enum Value : int {
   VALUE_MATE_IN_MAX_PLY  =  VALUE_MATE - MAX_PLY,
   VALUE_MATED_IN_MAX_PLY = -VALUE_MATE_IN_MAX_PLY,
 
+  // In the code, we make the assumption that these values
+  // are such that non_pawn_material() can be used to uniquely
+  // identify the material on the board.
   PawnValueMg   = 126,   PawnValueEg   = 208,
   KnightValueMg = 781,   KnightValueEg = 854,
   BishopValueMg = 825,   BishopValueEg = 915,
@@ -220,7 +218,7 @@ constexpr Value PieceValue[PHASE_NB][PIECE_NB] = {
     VALUE_ZERO, PawnValueEg, KnightValueEg, BishopValueEg, RookValueEg, QueenValueEg, VALUE_ZERO, VALUE_ZERO }
 };
 
-typedef int Depth;
+using Depth = int;
 
 enum : int {
   DEPTH_QS_CHECKS     =  0,
@@ -455,7 +453,7 @@ constexpr Square to_sq(Move m) {
 }
 
 constexpr int from_to(Move m) {
- return m & 0xFFF;
+  return m & 0xFFF;
 }
 
 constexpr MoveType type_of(Move m) {