X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fucioption.cpp;h=06641cf5081908aa04c804b4ba2e75c022cc2db2;hp=28a0ad5247d443930ce0d78afe0a03d6dab4ca1b;hb=6fa6da3ee13d2b7bdbec3cd24ff8ca43233c74fb;hpb=f53aea45e3230239d358d4d35357c9ee6bf6fb54

diff --git a/src/ucioption.cpp b/src/ucioption.cpp
index 28a0ad52..06641cf5 100644
--- a/src/ucioption.cpp
+++ b/src/ucioption.cpp
@@ -81,7 +81,7 @@ void init(OptionsMap& o) {
 std::ostream& operator<<(std::ostream& os, const OptionsMap& om) {
 
   for (size_t idx = 0; idx < om.size(); ++idx)
-      for (auto it : om)
+      for (const auto& it : om)
           if (it.second.idx == idx)
           {
               const Option& o = it.second;