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https://github.com/sockspls/badfish
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Prefer operator<<() to pretty()
It is more idiomatic, we didn't used it in the past because Position::pretty(Move) had a calling argument, but now we can. As an added benefit, we avoid a lot of string copies in the process because now we avoid std::ostringstream ss. No functional change.
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parent
d07a875398
commit
5644e14d0e
3 changed files with 29 additions and 29 deletions
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@ -108,6 +108,30 @@ CheckInfo::CheckInfo(const Position& pos) {
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}
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/// operator<<(Position) returns an ASCII representation of the position
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std::ostream& operator<<(std::ostream& os, const Position& pos) {
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os << "\n +---+---+---+---+---+---+---+---+\n";
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for (Rank r = RANK_8; r >= RANK_1; --r)
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{
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for (File f = FILE_A; f <= FILE_H; ++f)
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os << " | " << PieceToChar[pos.piece_on(make_square(f, r))];
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os << " |\n +---+---+---+---+---+---+---+---+\n";
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}
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os << "\nFen: " << pos.fen() << "\nKey: " << std::hex << std::uppercase
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<< std::setfill('0') << std::setw(16) << pos.st->key << "\nCheckers: ";
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for (Bitboard b = pos.checkers(); b; )
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os << UCI::format_square(pop_lsb(&b)) << " ";
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return os;
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}
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/// Position::init() initializes at startup the various arrays used to compute
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/// hash keys and the piece square tables. The latter is a two-step operation:
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/// Firstly, the white halves of the tables are copied from PSQT[] tables.
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@ -430,32 +454,6 @@ const string Position::fen() const {
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}
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/// Position::pretty() returns an ASCII representation of the position
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const string Position::pretty() const {
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std::ostringstream ss;
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ss << "\n +---+---+---+---+---+---+---+---+\n";
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for (Rank r = RANK_8; r >= RANK_1; --r)
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{
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for (File f = FILE_A; f <= FILE_H; ++f)
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ss << " | " << PieceToChar[piece_on(make_square(f, r))];
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ss << " |\n +---+---+---+---+---+---+---+---+\n";
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}
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ss << "\nFen: " << fen() << "\nKey: " << std::hex << std::uppercase
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<< std::setfill('0') << std::setw(16) << st->key << "\nCheckers: ";
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for (Bitboard b = checkers(); b; )
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ss << UCI::format_square(pop_lsb(&b)) << " ";
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return ss.str();
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}
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/// Position::game_phase() calculates the game phase interpolating total non-pawn
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/// material between endgame and midgame limits.
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@ -73,6 +73,9 @@ const size_t StateCopySize64 = offsetof(StateInfo, key) / sizeof(uint64_t) + 1;
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/// when traversing the search tree.
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class Position {
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friend std::ostream& operator<<(std::ostream&, const Position&);
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public:
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Position() {}
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Position(const Position& pos, Thread* t) { *this = pos; thisThread = t; }
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@ -80,10 +83,9 @@ public:
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Position& operator=(const Position&);
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static void init();
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// Text input/output
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// FEN string input/output
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void set(const std::string& fenStr, bool isChess960, Thread* th);
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const std::string fen() const;
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const std::string pretty() const;
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// Position representation
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Bitboard pieces() const;
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@ -203,7 +203,7 @@ void UCI::loop(int argc, char* argv[]) {
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else if (token == "setoption") setoption(is);
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else if (token == "flip") pos.flip();
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else if (token == "bench") benchmark(pos, is);
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else if (token == "d") sync_cout << pos.pretty() << sync_endl;
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else if (token == "d") sync_cout << pos << sync_endl;
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else if (token == "isready") sync_cout << "readyok" << sync_endl;
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else if (token == "eval") sync_cout << Eval::trace(pos) << sync_endl;
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else
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