X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fbook.cpp;h=e14de41589f392248777f31f7634e7072f3c7a76;hp=cc433a90abe47580b25b074fa01d65fa22a6f0cc;hb=bc4de9edaec0a618279092abbf465f47720736b8;hpb=6828325881eb823ddfb2e6ea72122c3a4576d240

diff --git a/src/book.cpp b/src/book.cpp
index cc433a90..e14de415 100644
--- a/src/book.cpp
+++ b/src/book.cpp
@@ -316,7 +316,7 @@ namespace {
     {
         // Piece offset is at 64 * polyPiece where polyPiece is defined as:
         // BP = 0, WP = 1, BN = 2, WN = 3, ... BK = 10, WK = 11
-        Square s = pop_1st_bit(&b);
+        Square s = pop_lsb(&b);
         Piece p = pos.piece_on(s);
         int polyPiece = 2 * (type_of(p) - 1) + (color_of(p) == WHITE);
         key ^= ZobPiece[64 * polyPiece + s];
@@ -325,7 +325,7 @@ namespace {
     b = pos.can_castle(ALL_CASTLES);
 
     while (b)
-        key ^= ZobCastle[pop_1st_bit(&b)];
+        key ^= ZobCastle[pop_lsb(&b)];
 
     if (pos.ep_square() != SQ_NONE)
         key ^= ZobEnPassant[file_of(pos.ep_square())];
@@ -378,7 +378,10 @@ bool Book::open(const char* fName) {
   ifstream::open(fName, ifstream::in | ifstream::binary | ios::ate);
 
   if (!is_open())
+  {
+      clear();
       return false; // Silently fail if the file is not found
+  }
 
   // Get the book size in number of entries, we are already at the end of file
   size = (size_t)tellg() / sizeof(BookEntry);
@@ -439,10 +442,10 @@ Move Book::probe(const Position& pos, const string& fName, bool pickBest) {
   // the special Move's flags (bit 14-15) that are not supported by PolyGlot.
   int pt = (move >> 12) & 7;
   if (pt)
-      move = make_promotion(from_sq(move), to_sq(move), PieceType(pt + 1));
+      move = make<PROMOTION>(from_sq(move), to_sq(move), PieceType(pt + 1));
 
   // Add 'special move' flags and verify it is legal
-  for (MoveList<MV_LEGAL> ml(pos); !ml.end(); ++ml)
+  for (MoveList<LEGAL> ml(pos); !ml.end(); ++ml)
       if (move == (ml.move() & 0x3FFF))
           return ml.move();