Use type_of() to categorize the moves

[stockfish] / src / book.cpp

diff --git a/src/book.cpp b/src/book.cpp
index cc433a90abe47580b25b074fa01d65fa22a6f0cc..cd3b432b0d24c80fcbf89e7569af78d37fee58e6 100644 (file)
--- a/src/book.cpp
+++ b/src/book.cpp
@@ -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);
@@ -442,7 +445,7 @@ Move Book::probe(const Position& pos, const string& fName, bool pickBest) {
       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();