projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | /* |
| 2 | * Copyright Andrey Semashev 2007 - 2015. | |
| 3 | * Distributed under the Boost Software License, Version 1.0. | |
| 4 | * (See accompanying file LICENSE_1_0.txt or copy at | |
| 5 | * http://www.boost.org/LICENSE_1_0.txt) | |
| 6 | */ | |
| 7 | /*! | |
| 8 | * \file nop.hpp | |
| 9 | * \author Andrey Semashev | |
| 10 | * \date 30.03.2008 | |
| 11 | * | |
| 12 | * This header contains a function object that does nothing. | |
| 13 | */ | |
| 14 | ||
| 15 | #ifndef BOOST_LOG_UTILITY_FUNCTIONAL_NOP_HPP_INCLUDED_ | |
| 16 | #define BOOST_LOG_UTILITY_FUNCTIONAL_NOP_HPP_INCLUDED_ | |
| 17 | ||
| 18 | #include <boost/log/detail/config.hpp> | |
| 19 | #include <boost/log/detail/header.hpp> | |
| 20 | ||
| 21 | #ifdef BOOST_HAS_PRAGMA_ONCE | |
| 22 | #pragma once | |
| 23 | #endif | |
| 24 | ||
| 25 | namespace boost { | |
| 26 | ||
| 27 | BOOST_LOG_OPEN_NAMESPACE | |
| 28 | ||
| 29 | //! The function object that does nothing | |
| 30 | struct nop | |
| 31 | { | |
| 32 | typedef void result_type; | |
| 33 | ||
| 34 | void operator() () const BOOST_NOEXCEPT {} | |
| 35 | ||
| 36 | #if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) | |
| 37 | template< typename... ArgsT > | |
| 38 | void operator() (ArgsT const&...) const BOOST_NOEXCEPT {} | |
| 39 | #else | |
| 40 | template< typename T > | |
| 41 | void operator() (T const&) const BOOST_NOEXCEPT {} | |
| 42 | template< typename T1, typename T2 > | |
| 43 | void operator() (T1 const&, T2 const&) const BOOST_NOEXCEPT {} | |
| 44 | template< typename T1, typename T2, typename T3 > | |
| 45 | void operator() (T1 const&, T2 const&, T3 const&) const BOOST_NOEXCEPT {} | |
| 46 | #endif | |
| 47 | }; | |
| 48 | ||
| 49 | BOOST_LOG_CLOSE_NAMESPACE // namespace log | |
| 50 | ||
| 51 | } // namespace boost | |
| 52 | ||
| 53 | #include <boost/log/detail/footer.hpp> | |
| 54 | ||
| 55 | #endif // BOOST_LOG_UTILITY_FUNCTIONAL_NOP_HPP_INCLUDED_ |