Simplify a condition in gives_check()

[stockfish] / src / book.cpp

diff --git a/src/book.cpp b/src/book.cpp
index caf2b0663ec76987720231e29360c6d434238d27..8d021ab262118d3a529b1eec2e52aea9690572b4 100644 (file)
--- a/src/book.cpp
+++ b/src/book.cpp
@@ -25,7 +25,6 @@
 
 #include <algorithm>
 #include <cassert>
-#include <iostream>
 
 #include "book.h"
 #include "misc.h"
@@ -361,7 +360,7 @@ PolyglotBook::~PolyglotBook() { if (is_open()) close(); }
 template<typename T> PolyglotBook& PolyglotBook::operator>>(T& n) {
 
   n = 0;
-  for (size_t i = 0; i < sizeof(T); i++)
+  for (size_t i = 0; i < sizeof(T); ++i)
       n = T((n << 8) + ifstream::get());
 
   return *this;
@@ -413,7 +412,7 @@ Move PolyglotBook::probe(const Position& pos, const string& fName, bool pickBest
       // Choose book move according to its score. If a move has a very
       // high score it has higher probability to be choosen than a move
       // with lower score. Note that first entry is always chosen.
-      if (   (sum && rkiss.rand<unsigned>() % sum < e.count)
+      if (   (!pickBest && sum && rkiss.rand<unsigned>() % sum < e.count)
           || (pickBest && e.count == best))
           move = Move(e.move);
   }