X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmovegen.h;h=0c2a8b25e6b0c4084c632358f88970bf158cae21;hp=65d346b49696208aa07816e4e4cb04155c266f84;hb=db097921bc0f631d770c3437569f105579823471;hpb=dc7fd868f4fa41251a9521a0b25e3adb483bfd83

diff --git a/src/movegen.h b/src/movegen.h
index 65d346b4..0c2a8b25 100644
--- a/src/movegen.h
+++ b/src/movegen.h
@@ -45,7 +45,11 @@ struct MoveList {
   void operator++() { cur++; }
   bool end() const { return cur == last; }
   Move move() const { return cur->move; }
-  int size() const { return int(last - mlist); }
+  size_t size() const { return last - mlist; }
+  bool contains(Move m) const {
+    for (const MoveStack* it(mlist); it != last; ++it) if (it->move == m) return true;
+    return false;
+  }
 
 private:
   MoveStack mlist[MAX_MOVES];