util: add literal operators for duration types
Change-Id: I007fa61c80e535c6e4b12e85a32eeeee62fecc3c
Refs: #4468
diff --git a/src/security/v2/certificate-cache.hpp b/src/security/v2/certificate-cache.hpp
index a5109a8..53157b4 100644
--- a/src/security/v2/certificate-cache.hpp
+++ b/src/security/v2/certificate-cache.hpp
@@ -1,6 +1,6 @@
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
- * Copyright (c) 2013-2017 Regents of the University of California.
+ * Copyright (c) 2013-2018 Regents of the University of California.
*
* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
*
@@ -118,7 +118,7 @@
refresh();
public:
- static const time::nanoseconds&
+ static time::nanoseconds
getDefaultLifetime();
private: