Make fecom's base_hit comparator call const

AppleClang 9.1 now fails to compile fecom base_hit with a promoted-to-error warning about base_hit::compare's call operator not being const. Make operator explicitly const as it is!
SuperNEMO-DBD · Apr 11, 2018 · a2ee404 · a2ee404
1 parent 7938802
commit a2ee404
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/companions/fecom/src/libs/libfecom/fecom/base_hit.cpp b/companions/fecom/src/libs/libfecom/fecom/base_hit.cpp
@@ -64,7 +64,7 @@ void base_hit::tree_dump(std::ostream& out_, const std::string& title_, const st
   return;
 }
 
-bool base_hit::compare::operator()(const base_hit& a, const base_hit& b) {
+bool base_hit::compare::operator()(const base_hit& a, const base_hit& b) const {
   if (a.hit_id < b.hit_id) {
     return true;
   } else if ((a.hit_id == b.hit_id)) {

diff --git a/companions/fecom/src/libs/libfecom/fecom/base_hit.hpp b/companions/fecom/src/libs/libfecom/fecom/base_hit.hpp
@@ -27,7 +27,7 @@ struct base_hit : public datatools::i_serializable {
 
   /// Compare two base hits by hit id
   struct compare {
-    bool operator()(const base_hit& a, const base_hit& b);
+    bool operator()(const base_hit& a, const base_hit& b) const;
   };
 
   /// Compare two base hits by timestamp