no message

test/src/cpp11/cpp11_test.cpp

@@ -33,6 +33,12 @@ int main(){
     list<int>::iterator pos = (find(i.begin(), i.end(), 4));    
     i.insert(pos,1);
 
+    auto begin = i.begin();
+    while(*begin != 4)
+        begin++;
+    
+    i.erase(begin);
+
     for(auto x : i){
         std::cout<<x<<"\r\n"<<std::endl;
     }