X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fuci.cpp;h=b90240961e56ca803e2f3d30fdf3b7044f4f3a9e;hb=dd884b65b7d926c7a8b01c372ca026bef3fc84a8;hp=1f1ba096ca6aa38edf39889d5e359dc07c96f9e9;hpb=174b40c28dd6f907ca093864ecaa73136694a7c5;p=stockfish

diff --git a/src/uci.cpp b/src/uci.cpp
index 1f1ba096..b9024096 100644
--- a/src/uci.cpp
+++ b/src/uci.cpp
@@ -61,6 +61,7 @@ namespace {
   void set_option(UCIInputParser& uip);
   void set_position(UCIInputParser& uip);
   bool go(UCIInputParser& uip);
+  void perft(UCIInputParser& uip);
 }
 
 
@@ -155,6 +156,8 @@ namespace {
         cout << "key: " << hex << RootPosition.get_key()
              << "\nmaterial key: " << RootPosition.get_material_key()
              << "\npawn key: " << RootPosition.get_pawn_key() << endl;
+    else if (token == "perft")
+        perft(uip);
     else
     {
         cout << "Unknown command: " << command << endl;
@@ -242,12 +245,10 @@ namespace {
         }
         if (token == "value")
         {
-            // Skip whitespace. There should be a better way to do this, but
-            // I don't know how...
-            while(isspace(uip.get()));
-            uip.unget();
+            // Reads until end of line and left trim white space
+            getline(uip, token);
+            token.erase(0, token.find_first_not_of(" \n\r\t"));
 
-            getline(uip, token); // reads until end of line
             set_option_value(name, token);
         } else
             push_button(name);
@@ -320,4 +321,24 @@ namespace {
                  time, inc, movesToGo, depth, nodes, moveTime, searchMoves);
   }
 
+  void perft(UCIInputParser& uip) {
+
+    string token;
+    int depth = 0;
+
+    while (!uip.eof())
+    {
+        uip >> token;
+
+        if (token == "depth")
+            uip >> depth;
+    }
+    Position pos = RootPosition;
+    int tm = get_system_time();
+    int n = perft(pos, depth * OnePly);
+    tm = get_system_time() - tm;
+    std::cout << "\nNodes " << n
+              << "\nTime (ms) " << tm
+              << "\nNodes/second " << (int)(n/(tm/1000.0)) << std::endl;
+  }
 }