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Code Issues Releases Wiki Activity

Retire pos_code()

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This commit is contained in:
Marco Costalba 2016-05-26 10:03:18 +02:00
parent 32c1f1da26
commit 5ebd56ebd8
1 changed files with 10 additions and 16 deletions
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24
src/syzygy/tbprobe.cpp
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@ -466,20 +466,6 @@ DTZEntry::~DTZEntry() {
delete piece.precomp; delete piece.precomp;
} }
// Given a position return a string of the form KQPvKRP, where KQP represents
// the white pieces if mirror == false and the black pieces if mirror == true.
std::string pos_code(const Position& pos, bool mirror = false) {
std::string w, b;
for (PieceType pt = KING; pt >= PAWN; --pt) {
w += std::string(popcount(pos.pieces(WHITE, pt)), PieceToChar[pt]);
b += std::string(popcount(pos.pieces(BLACK, pt)), PieceToChar[pt]);
}
return mirror ? b + 'v' + w : w + 'v' + b;
}
void HashTable::insert(const std::vector<PieceType>& pieces) { void HashTable::insert(const std::vector<PieceType>& pieces) {
std::string code; std::string code;
@ -1122,7 +1108,15 @@ bool init(Entry& e, const Position& pos)
const bool IsWDL = std::is_same<Entry, WDLEntry>::value; const bool IsWDL = std::is_same<Entry, WDLEntry>::value;
const uint8_t* MAGIC = IsWDL ? WDL_MAGIC : DTZ_MAGIC; const uint8_t* MAGIC = IsWDL ? WDL_MAGIC : DTZ_MAGIC;
std::string fname = pos_code(pos, e.key != pos.material_key()) std::string fname, w, b;
// Position pieces in decreasing order for each color, like ("KPP","KR")
for (PieceType pt = KING; pt >= PAWN; --pt) {
w += std::string(popcount(pos.pieces(WHITE, pt)), PieceToChar[pt]);
b += std::string(popcount(pos.pieces(BLACK, pt)), PieceToChar[pt]);
}
fname = (e.key == pos.material_key() ? w + 'v' + b : b + 'v' + w)
+ (IsWDL ? ".rtbw" : ".rtbz"); + (IsWDL ? ".rtbw" : ".rtbz");
uint8_t* data = TBFile(fname).map(&e.baseAddress, &e.mapping, MAGIC); uint8_t* data = TBFile(fname).map(&e.baseAddress, &e.mapping, MAGIC);