optional.hpp

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013-2021 Regents of the University of California.
 *
 * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
 *
 * ndn-cxx library is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later version.
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 * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
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 * You should have received copies of the GNU General Public License and GNU Lesser
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 * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
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#ifndef NDN_CXX_UTIL_OPTIONAL_HPP
#define NDN_CXX_UTIL_OPTIONAL_HPP
 
#define optional_CONFIG_SELECT_OPTIONAL optional_OPTIONAL_NONSTD
#include "ndn-cxx/detail/nonstd/optional-lite.hpp"
 
namespace ndn {
 
using ::nonstd::optional;
using ::nonstd::bad_optional_access;
using ::nonstd::nullopt;
using ::nonstd::nullopt_t;
using ::nonstd::make_optional;
 
using ::nonstd::in_place;
using ::nonstd::in_place_t;
 
} // namespace ndn
 
#endif // NDN_CXX_UTIL_OPTIONAL_HPP