#include <algorithm>
#include <cassert>
#include <cmath>
+#include <cstdio>
#include <cstring>
#include <iomanip>
-#include <iostream>
#include <sstream>
#include <vector>
Position RootPosition;
}
-using std::cout;
-using std::endl;
using std::string;
using namespace Search;
TimeManager TimeMgr;
int BestMoveChanges;
int SkillLevel;
- bool SkillLevelEnabled;
+ bool SkillLevelEnabled, Chess960;
History H;
MovePicker* mp;
};
- // Overload operator<<() to make it easier to print moves in a coordinate
- // notation compatible with UCI protocol.
- std::ostream& operator<<(std::ostream& os, Move m) {
-
- bool chess960 = (os.iword(0) != 0); // See set960()
- return os << move_to_uci(m, chess960);
- }
-
- // When formatting a move for std::cout we must know if we are in Chess960 or
- // not. To keep using the handy operator<<() on the move the trick is to embed
- // this flag in the stream itself. Function-like named enum set960 is used as
- // a custom manipulator and the stream internal general-purpose array, accessed
- // through ios_base::iword(), is used to pass the flag to the move's operator<<
- // that will read it to properly format castling moves.
- enum set960 {};
-
- std::ostream& operator<<(std::ostream& os, const set960& f) {
-
- os.iword(0) = f;
- return os;
- }
-
// is_dangerous() checks whether a move belongs to some classes of known
// 'dangerous' moves so that we avoid to prune it.
FORCE_INLINE bool is_dangerous(const Position& pos, Move m, bool captureOrPromotion) {
static Book book; // Defined static to initialize the PRNG only once
Position& pos = RootPosition;
+ Chess960 = pos.is_chess960();
elapsed_time(true);
TimeMgr.init(Limits, pos.startpos_ply_counter());
TT.new_search();
|| std::count(SearchMoves.begin(), SearchMoves.end(), ml.move()))
RootMoves.push_back(RootMove(ml.move()));
- // Set output stream mode: normal or chess960. Castling notation is different
- cout << set960(pos.is_chess960());
-
if (Options["OwnBook"].value<bool>())
{
if (Options["Book File"].value<string>() != book.name())
<< " time: " << Limits.time
<< " increment: " << Limits.increment
<< " moves to go: " << Limits.movesToGo
- << endl;
+ << std::endl;
}
for (int i = 0; i < Threads.size(); i++)
StateInfo st;
pos.do_move(RootMoves[0].pv[0], st);
- log << "\nPonder move: " << move_to_san(pos, RootMoves[0].pv[1]) << endl;
+ log << "\nPonder move: " << move_to_san(pos, RootMoves[0].pv[1]) << std::endl;
pos.undo_move(RootMoves[0].pv[0]);
}
if (!Signals.stop && (Limits.ponder || Limits.infinite))
Threads.wait_for_stop_or_ponderhit();
- // Could be MOVE_NONE when searching on a stalemate position
- cout << "bestmove " << RootMoves[0].pv[0];
-
- // UCI protol is not clear on allowing sending an empty ponder move, instead
- // it is clear that ponder move is optional. So skip it if empty.
- if (RootMoves[0].pv[1] != MOVE_NONE)
- cout << " ponder " << RootMoves[0].pv[1];
-
- cout << endl;
+ // Best move could be MOVE_NONE when searching on a stalemate position
+ printf("bestmove %s ponder %s\n",
+ move_to_uci(RootMoves[0].pv[0], Chess960).c_str(),
+ move_to_uci(RootMoves[0].pv[1], Chess960).c_str());
}
// Handle the special case of a mate/stalemate position
if (RootMoves.empty())
{
- cout << "info depth 0"
- << score_to_uci(pos.in_check() ? -VALUE_MATE : VALUE_DRAW) << endl;
+ printf("info depth 0%s\n",
+ score_to_uci(pos.in_check() ? -VALUE_MATE : VALUE_DRAW).c_str());
RootMoves.push_back(MOVE_NONE);
return;
if (RootNode)
{
- // This is used by time management
Signals.firstRootMove = (moveCount == 1);
-
nodes = pos.nodes_searched();
if (pos.thread() == 0 && elapsed_time() > 2000)
- cout << "info depth " << depth / ONE_PLY
- << " currmove " << move
- << " currmovenumber " << moveCount + PVIdx << endl;
+ printf("info depth %i currmove %s currmovenumber %i\n", depth / ONE_PLY,
+ move_to_uci(move, Chess960).c_str(), moveCount + PVIdx);
}
isPvMove = (PvNode && moveCount <= 1);
int t = elapsed_time();
int selDepth = 0;
+ std::stringstream s;
for (int i = 0; i < Threads.size(); i++)
if (Threads[i].maxPly > selDepth)
continue;
int d = (updated ? depth : depth - 1);
- Value s = (updated ? RootMoves[i].score : RootMoves[i].prevScore);
+ Value v = (updated ? RootMoves[i].score : RootMoves[i].prevScore);
- cout << "info"
- << " depth " << d
- << " seldepth " << selDepth
- << (i == PVIdx ? score_to_uci(s, alpha, beta) : score_to_uci(s))
- << " nodes " << pos.nodes_searched()
- << " nps " << (t > 0 ? pos.nodes_searched() * 1000 / t : 0)
- << " time " << t
- << " multipv " << i + 1 << " pv";
+ s << "info depth " << d
+ << " seldepth " << selDepth
+ << (i == PVIdx ? score_to_uci(v, alpha, beta) : score_to_uci(v))
+ << " nodes " << pos.nodes_searched()
+ << " nps " << (t > 0 ? pos.nodes_searched() * 1000 / t : 0)
+ << " time " << t
+ << " multipv " << i + 1 << " pv";
for (int j = 0; RootMoves[i].pv[j] != MOVE_NONE; j++)
- cout << " " << RootMoves[i].pv[j];
+ s << " " << move_to_uci(RootMoves[i].pv[j], Chess960);
- cout << endl;
+ printf("%s\n", s.str().c_str()); // Much faster than std::cout
}
}
size_t length;
std::stringstream s;
- s << set960(pos.is_chess960())
- << std::setw(2) << depth
+ s << std::setw(2) << depth
<< std::setw(8) << score_to_string(value)
<< std::setw(8) << time_to_string(time);
pos.undo_move(*--m);
Log l(Options["Search Log Filename"].value<string>());
- l << s.str() << endl;
+ l << s.str() << std::endl;
}