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Allow Position::init() to be called multiple times.

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For the rationale to allow this, see commit
a66c73deef

This was broken when cuckoo hashing was added, and
subtly broke (for example) lichess' Android application,
thus illustrating the original judgement was sound.

No functional change.
This commit is contained in:
Gian-Carlo Pascutto
2018-07-17 23:13:12 +02:00
committed by Stéphane Nicolet
parent a6fa6a9e92
commit e0f317afaa
1 changed files with 2 additions and 0 deletions
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2
src/position.cpp
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@@ -168,6 +168,8 @@ void Position::init() {
Zobrist::noPawns = rng.rand<Key>(); Zobrist::noPawns = rng.rand<Key>();
// Prepare the cuckoo tables // Prepare the cuckoo tables
std::memset(cuckoo, 0, sizeof(cuckoo));
std::memset(cuckooMove, 0, sizeof(cuckooMove));
int count = 0; int count = 0;
for (Piece pc : Pieces) for (Piece pc : Pieces)
for (Square s1 = SQ_A1; s1 <= SQ_H8; ++s1) for (Square s1 = SQ_A1; s1 <= SQ_H8; ++s1)