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stockfish
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Perft should return an int64_t not an int 

Found by Louis Zulli with his super fast
hardware: 65M nodes/sec at perft !

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
sf_2.3.1_base
Marco Costalba 2011-01-05 17:03:57 +01:00
parent 7614501362
commit 55b16593a4
3 changed files with 5 additions and 4 deletions
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4
src/search.cpp
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@ -364,12 +364,12 @@ void init_search() {
/// perft() is our utility to verify move generation is bug free. All the legal
/// moves up to given depth are generated and counted and the sum returned.
int perft(Position& pos, Depth depth)
int64_t perft(Position& pos, Depth depth)
{
MoveStack mlist[MOVES_MAX];
StateInfo st;
Move m;
int sum = 0;
int64_t sum = 0;
// Generate all legal moves
MoveStack* last = generate_moves(pos, mlist);

2
src/search.h
View File

@ -70,7 +70,7 @@ struct SearchStack {
extern void init_search();
extern void init_threads();
extern void exit_threads();
extern int perft(Position& pos, Depth depth);
extern int64_t perft(Position& pos, Depth depth);
extern bool think(Position& pos, bool infinite, bool ponder, int time[], int increment[],
int movesToGo, int maxDepth, int maxNodes, int maxTime, Move searchMoves[]);

3
src/uci.cpp
View File

@ -287,7 +287,8 @@ namespace {
void perft(Position& pos, UCIParser& up) {
int depth, tm, n;
int depth, tm;
int64_t n;
if (!(up >> depth))
return;