base: add PacketBase to provide wrappers for congestion tags
refs #3797
Change-Id: I8747bb4fcbc11bfd1731516896b8aef1ec181c36
diff --git a/src/lp/nack.cpp b/src/lp/nack.cpp
index c31a114..56b183d 100644
--- a/src/lp/nack.cpp
+++ b/src/lp/nack.cpp
@@ -1,6 +1,6 @@
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2013-2015 Regents of the University of California.
+/*
+ * Copyright (c) 2013-2017 Regents of the University of California.
*
* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
*
@@ -26,6 +26,8 @@
namespace ndn {
namespace lp {
+Nack::Nack() = default;
+
Nack::Nack(const Interest& interest)
: m_interest(interest)
{
@@ -37,4 +39,4 @@
}
} // namespace lp
-} // namespace ndn
\ No newline at end of file
+} // namespace ndn