build: switch to C++17
Change-Id: Id6217b5c993f3e4726e89773128b565e5f136bb6
diff --git a/tests/key-chain-fixture.hpp b/tests/key-chain-fixture.hpp
index f86de19..8c09170 100644
--- a/tests/key-chain-fixture.hpp
+++ b/tests/key-chain-fixture.hpp
@@ -1,6 +1,6 @@
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
- * Copyright (c) 2014-2020, Regents of the University of California.
+ * Copyright (c) 2014-2022, Regents of the University of California.
*
* This file is part of ndn-tools (Named Data Networking Essential Tools).
* See AUTHORS.md for complete list of ndn-tools authors and contributors.
@@ -23,8 +23,7 @@
#include <ndn-cxx/security/key-chain.hpp>
#include <ndn-cxx/security/signing-helpers.hpp>
-namespace ndn {
-namespace tests {
+namespace ndn::tests {
/**
* @brief A fixture providing an in-memory KeyChain.
@@ -87,7 +86,6 @@
std::vector<std::string> m_certFiles;
};
-} // namespace tests
-} // namespace ndn
+} // namespace ndn::tests
#endif // NDN_TOOLS_TESTS_KEY_CHAIN_FIXTURE_HPP