X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fucioption.cpp;h=765e80b4ed96eebba50df89b85dbcde1d435ddb3;hp=2eb7d1c62c6a0c9480a4ebf75c2e0adef1f6c277;hb=a52ab2afbf38e42376732d41b14279fd29fcf23f;hpb=e38ad4d42ba0b363581444feafd0f10b92e17f9a

diff --git a/src/ucioption.cpp b/src/ucioption.cpp
index 2eb7d1c6..765e80b4 100644
--- a/src/ucioption.cpp
+++ b/src/ucioption.cpp
@@ -59,16 +59,16 @@ namespace {
 
     std::string name, defaultValue, currentValue;
     OptionType type;
+    size_t idx;
     int minValue, maxValue;
     ComboValues comboValues;
-    size_t idx;
 
     Option();
     Option(const char* defaultValue, OptionType = STRING);
     Option(bool defaultValue, OptionType = CHECK);
     Option(int defaultValue, int minValue, int maxValue);
 
-    bool operator<(const Option& o) { return this->idx < o.idx; }
+    bool operator<(const Option& o) const { return this->idx < o.idx; }
   };
 
   typedef std::map<std::string, Option> Options;