X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fthread.cpp;h=de8de87d8a2b9d94f6f57b9876d658f459abfbc0;hb=a069a1bbbfb60abddbe3fe5276b06f35f783f41c;hp=fdf89095b5e79239883cd9d41d30a760f0c685c2;hpb=a105978bbde04508389abad03bd121f817f91646;p=stockfish

diff --git a/src/thread.cpp b/src/thread.cpp
index fdf89095..de8de87d 100644
--- a/src/thread.cpp
+++ b/src/thread.cpp
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <cassert>
+#include <cmath>
 #include <cstdlib>
 #include <deque>
 #include <initializer_list>
@@ -68,6 +69,7 @@ void Thread::clear() {
     counterMoves.fill(MOVE_NONE);
     mainHistory.fill(0);
     captureHistory.fill(0);
+    pawnHistory.fill(0);
 
     for (bool inCheck : {false, true})
         for (StatsType c : {NoCaptures, Captures})
@@ -234,7 +236,7 @@ Thread* ThreadPool::get_best_thread() const {
         votes[th->rootMoves[0].pv[0]] += thread_value(th);
 
     for (Thread* th : threads)
-        if (abs(bestThread->rootMoves[0].score) >= VALUE_TB_WIN_IN_MAX_PLY)
+        if (std::abs(bestThread->rootMoves[0].score) >= VALUE_TB_WIN_IN_MAX_PLY)
         {
             // Make sure we pick the shortest mate / TB conversion or stave off mate the longest
             if (th->rootMoves[0].score > bestThread->rootMoves[0].score)