X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmisc.cpp;h=053ee67ecf6f7a79a75e25d29cf00c11837aa7f5;hp=a5717e7a18553e578daf2ff5d486ef4ad64a19e5;hb=bcf9282844f17dbb451231d8ae0a957d1b7be43d;hpb=0436f01d05f05e2669cbb5b4bee752145b5b9991

diff --git a/src/misc.cpp b/src/misc.cpp
index a5717e7a..053ee67e 100644
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -2,7 +2,7 @@
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
-  Copyright (C) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+  Copyright (C) 2015-2020 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -102,6 +102,13 @@ public:
     if (!fname.empty() && !l.file.is_open())
     {
         l.file.open(fname, ifstream::out);
+
+        if (!l.file.is_open())
+        {
+            cerr << "Unable to open debug log file " << fname << endl;
+            exit(EXIT_FAILURE);
+        }
+
         cin.rdbuf(&l.in);
         cout.rdbuf(&l.out);
     }
@@ -239,7 +246,7 @@ void dbg_print() {
 
 std::ostream& operator<<(std::ostream& os, SyncCout sc) {
 
-  static Mutex m;
+  static std::mutex m;
 
   if (sc == IO_LOCK)
       m.lock();