#include "search.h"
#include "thread.h"
-using namespace std;
-
namespace Stockfish {
namespace {
// the initial position ("startpos") and then makes the moves given in the following
// move list ("moves").
- void position(Position& pos, istringstream& is, StateListPtr& states) {
+ void position(Position& pos, std::istringstream& is, StateListPtr& states) {
Move m;
- string token, fen;
+ std::string token, fen;
is >> token;
// setoption() is called when the engine receives the "setoption" UCI command.
// The function updates the UCI option ("name") to the given value ("value").
- void setoption(istringstream& is) {
+ void setoption(std::istringstream& is) {
Threads.main()->wait_for_search_finished();
- string token, name, value;
+ std::string token, name, value;
is >> token; // Consume the "name" token
// sets the thinking time and other parameters from the input string, then starts
// with a search.
- void go(Position& pos, istringstream& is, StateListPtr& states) {
+ void go(Position& pos, std::istringstream& is, StateListPtr& states) {
Search::LimitsType limits;
- string token;
+ std::string token;
bool ponderMode = false;
limits.startTime = now(); // The search starts as early as possible
// Firstly, a list of UCI commands is set up according to the bench
// parameters, then it is run one by one, printing a summary at the end.
- void bench(Position& pos, istream& args, StateListPtr& states) {
+ void bench(Position& pos, std::istream& args, StateListPtr& states) {
- string token;
+ std::string token;
uint64_t num, nodes = 0, cnt = 1;
- vector<string> list = setup_bench(pos, args);
- num = count_if(list.begin(), list.end(), [](const string& s) { return s.find("go ") == 0 || s.find("eval") == 0; });
+ std::vector<std::string> list = setup_bench(pos, args);
+ num = count_if(list.begin(), list.end(), [](const std::string& s) { return s.find("go ") == 0 || s.find("eval") == 0; });
TimePoint elapsed = now();
for (const auto& cmd : list)
{
- istringstream is(cmd);
- is >> skipws >> token;
+ std::istringstream is(cmd);
+ is >> std::skipws >> token;
if (token == "go" || token == "eval")
{
- cerr << "\nPosition: " << cnt++ << '/' << num << " (" << pos.fen() << ")" << endl;
+ std::cerr << "\nPosition: " << cnt++ << '/' << num << " (" << pos.fen() << ")" << std::endl;
if (token == "go")
{
go(pos, is, states);
dbg_print();
- cerr << "\n==========================="
- << "\nTotal time (ms) : " << elapsed
- << "\nNodes searched : " << nodes
- << "\nNodes/second : " << 1000 * nodes / elapsed << endl;
+ std::cerr << "\n==========================="
+ << "\nTotal time (ms) : " << elapsed
+ << "\nNodes searched : " << nodes
+ << "\nNodes/second : " << 1000 * nodes / elapsed << std::endl;
}
// The win rate model returns the probability of winning (in per mille units) given an
void UCI::loop(int argc, char* argv[]) {
Position pos;
- string token, cmd;
+ std::string token, cmd;
StateListPtr states(new std::deque<StateInfo>(1));
pos.set(StartFEN, false, &states->back(), Threads.main());
cmd += std::string(argv[i]) + " ";
do {
- if (argc == 1 && !getline(cin, cmd)) // Wait for an input or an end-of-file (EOF) indication
+ if (argc == 1 && !getline(std::cin, cmd)) // Wait for an input or an end-of-file (EOF) indication
cmd = "quit";
- istringstream is(cmd);
+ std::istringstream is(cmd);
token.clear(); // Avoid a stale if getline() returns nothing or a blank line
- is >> skipws >> token;
+ is >> std::skipws >> token;
if ( token == "quit"
|| token == "stop")
{
std::optional<std::string> filename;
std::string f;
- if (is >> skipws >> f)
+ if (is >> std::skipws >> f)
filename = f;
Eval::NNUE::save_eval(filename);
}
/// mate <y> Mate in 'y' moves (not plies). If the engine is getting mated,
/// uses negative values for 'y'.
-string UCI::value(Value v) {
+std::string UCI::value(Value v) {
assert(-VALUE_INFINITE < v && v < VALUE_INFINITE);
- stringstream ss;
+ std::stringstream ss;
if (abs(v) < VALUE_TB_WIN_IN_MAX_PLY)
ss << "cp " << UCI::to_cp(v);
/// UCI::wdl() reports the win-draw-loss (WDL) statistics given an evaluation
/// and a game ply based on the data gathered for fishtest LTC games.
-string UCI::wdl(Value v, int ply) {
+std::string UCI::wdl(Value v, int ply) {
- stringstream ss;
+ std::stringstream ss;
int wdl_w = win_rate_model( v, ply);
int wdl_l = win_rate_model(-v, ply);
/// standard chess mode and in e1h1 notation it is printed in Chess960 mode.
/// Internally, all castling moves are always encoded as 'king captures rook'.
-string UCI::move(Move m, bool chess960) {
+std::string UCI::move(Move m, bool chess960) {
if (m == MOVE_NONE)
return "(none)";
if (type_of(m) == CASTLING && !chess960)
to = make_square(to > from ? FILE_G : FILE_C, rank_of(from));
- string move = UCI::square(from) + UCI::square(to);
+ std::string move = UCI::square(from) + UCI::square(to);
if (type_of(m) == PROMOTION)
move += " pnbrqk"[promotion_type(m)];
/// UCI::to_move() converts a string representing a move in coordinate notation
/// (g1f3, a7a8q) to the corresponding legal Move, if any.
-Move UCI::to_move(const Position& pos, string& str) {
+Move UCI::to_move(const Position& pos, std::string& str) {
if (str.length() == 5)
str[4] = char(tolower(str[4])); // The promotion piece character must be lowercased
projects / stockfish / blobdiff