[2218] (trivial) documentation for DomainTreeNodeChain copy ctor.

diff --git a/src/lib/datasrc/memory/domaintree.h b/src/lib/datasrc/memory/domaintree.h
index b15eb38d953e95c14f7e36b1c09c34c64ffcff27..b87a8ccfe1fb4da184aae3e1f86fd716555640b9 100644 (file)
--- a/src/lib/datasrc/memory/domaintree.h
+++ b/src/lib/datasrc/memory/domaintree.h
@@ -697,6 +697,9 @@ public:
                                          isc::dns::NameComparisonResult::EQUAL)
     {}
 
+    /// \brief Copy constructor.
+    ///
+    /// \exception None
     DomainTreeNodeChain(const DomainTreeNodeChain<T>& other) :
         level_count_(other.level_count_),
        last_compared_(other.last_compared_),