X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsquare.h;h=46456d0677c88fed74609a2a9654e68245ba830a;hp=7a59e078fdc7ec4a02a0a7e2068752778a513668;hb=82d5386435d67e4f0b2eeb409c510079465bd013;hpb=cb7f20913e04b051fea6ac9a4055a4e86be452d1

diff --git a/src/square.h b/src/square.h
index 7a59e078..46456d06 100644
--- a/src/square.h
+++ b/src/square.h
@@ -68,10 +68,10 @@ enum SquareDelta {
   DELTA_NW = DELTA_N + DELTA_W
 };
 
-ENABLE_OPERATORS_ON(Square);
-ENABLE_OPERATORS_ON(File);
-ENABLE_OPERATORS_ON(Rank);
-ENABLE_OPERATORS_ON(SquareDelta);
+ENABLE_OPERATORS_ON(Square)
+ENABLE_OPERATORS_ON(File)
+ENABLE_OPERATORS_ON(Rank)
+ENABLE_OPERATORS_ON(SquareDelta)
 
 
 ////
@@ -81,9 +81,6 @@ ENABLE_OPERATORS_ON(SquareDelta);
 const int FlipMask = 56;
 const int FlopMask =  7;
 
-extern int8_t DirectionTable[64][64];
-
-
 ////
 //// Inline functions
 ////
@@ -180,23 +177,7 @@ inline bool rank_is_ok(Rank r) {
 }
 
 inline bool square_is_ok(Square s) {
-  return file_is_ok(square_file(s)) && rank_is_ok(square_rank(s));
-}
-
-inline bool squares_aligned(Square s1, Square s2, Square s3) {
-  return   DirectionTable[s1][s2] != DELTA_NONE
-        && abs(DirectionTable[s1][s2]) ==  abs(DirectionTable[s2][s3]);
-}
-
-inline bool direction_is_straight(Square s1, Square s2) {
-  return   abs(DirectionTable[s1][s2]) == DELTA_N
-        || abs(DirectionTable[s1][s2]) == DELTA_E;
+  return s >= SQ_A1 && s <= SQ_H8;
 }
 
-////
-//// Prototypes
-////
-
-extern void init_direction_table();
-
 #endif // !defined(SQUARE_H_INCLUDED)