search(): Move nullValue variable into local scope

No functional change

Closes #1003

diff --git a/src/search.cpp b/src/search.cpp
index 1101a41ed69e046561bdb18d61284af587ed613f..1572333b9c35085734c06646001b707657d7bb88 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -564,7 +564,7 @@ namespace {
     Key posKey;
     Move ttMove, move, excludedMove, bestMove;
     Depth extension, newDepth;
     Key posKey;
     Move ttMove, move, excludedMove, bestMove;
     Depth extension, newDepth;

-    Value bestValue, value, ttValue, eval, nullValue;
+    Value bestValue, value, ttValue, eval;

     bool ttHit, inCheck, givesCheck, singularExtensionNode, improving;
     bool captureOrPromotion, doFullDepthSearch, moveCountPruning;
     Piece moved_piece;
     bool ttHit, inCheck, givesCheck, singularExtensionNode, improving;
     bool captureOrPromotion, doFullDepthSearch, moveCountPruning;
     Piece moved_piece;


@@ -768,8 +768,8 @@ namespace {
         Depth R = ((823 + 67 * depth / ONE_PLY) / 256 + std::min((eval - beta) / PawnValueMg, 3)) * ONE_PLY;
 
         pos.do_null_move(st);
         Depth R = ((823 + 67 * depth / ONE_PLY) / 256 + std::min((eval - beta) / PawnValueMg, 3)) * ONE_PLY;
 
         pos.do_null_move(st);

-        nullValue = depth-R < ONE_PLY ? -qsearch<NonPV, false>(pos, ss+1, -beta, -beta+1)
-                                      : - search<NonPV>(pos, ss+1, -beta, -beta+1, depth-R, !cutNode, true);
+        Value nullValue = depth-R < ONE_PLY ? -qsearch<NonPV, false>(pos, ss+1, -beta, -beta+1)
+                                            : - search<NonPV>(pos, ss+1, -beta, -beta+1, depth-R, !cutNode, true);

         pos.undo_null_move();
 
         if (nullValue >= beta)
         pos.undo_null_move();
 
         if (nullValue >= beta)