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Fix memory access in Search::clear()

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Fixes a bug in Search::clear, where the filling of CounterMoveStats&, overwrote (currently presumably unused) memory because sizeof(cm) returns the size in bytes, whereas elements was needed.

No functional change

Closes #1119
This commit is contained in:
Joost VandeVondele
2017-05-17 18:15:01 -07:00
committed by Joona Kiiski
parent 862934d7ae
commit 732aa34e3d
1 changed files with 3 additions and 2 deletions
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5
src/search.cpp
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@@ -197,9 +197,10 @@ void Search::clear() {
th->history.clear(); th->history.clear();
th->counterMoveHistory.clear(); th->counterMoveHistory.clear();
th->resetCalls = true; th->resetCalls = true;
CounterMoveStats& cm = th->counterMoveHistory[NO_PIECE][0]; CounterMoveStats& cm = th->counterMoveHistory[NO_PIECE][0];
int* t = &cm[NO_PIECE][0]; auto* t = &cm[NO_PIECE][0];
std::fill(t, t + sizeof(cm), CounterMovePruneThreshold - 1); std::fill(t, t + sizeof(cm)/sizeof(*t), CounterMovePruneThreshold - 1);
} }
Threads.main()->previousScore = VALUE_INFINITE; Threads.main()->previousScore = VALUE_INFINITE;