[ceph.git] / ceph / src / boost / boost / multi_index / detail / define_if_constexpr_macro.hpp

/* Copyright 2003-2020 Joaquin M Lopez Munoz.
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE_1_0.txt or copy at
 * http://www.boost.org/LICENSE_1_0.txt)
 *
 * See http://www.boost.org/libs/multi_index for library home page.
 */

#include <boost/config.hpp>

#if !defined(BOOST_MULTI_INDEX_DETAIL_UNDEF_IF_CONSTEXPR_MACRO)

#if !defined(BOOST_NO_CXX17_IF_CONSTEXPR)
#define BOOST_MULTI_INDEX_IF_CONSTEXPR if constexpr
#else
#define BOOST_MULTI_INDEX_IF_CONSTEXPR if
#if defined(BOOST_MSVC)
#define BOOST_MULTI_INDEX_DETAIL_C4127_DISABLED
#pragma warning(push)
#pragma warning(disable:4127) /* conditional expression is constant */
#endif
#endif

#else

#undef BOOST_MULTI_INDEX_IF_CONSTEXPR 
#if defined(BOOST_MULTI_INDEX_DETAIL_C4127_DISABLED)
#pragma warning(pop)
#undef BOOST_MULTI_INDEX_DETAIL_C4127_DISABLED
#endif

#endif
Commit	Line	Data
20effc67 TL	1	/* Copyright 2003-2020 Joaquin M Lopez Munoz.
	2	* Distributed under the Boost Software License, Version 1.0.
	3	* (See accompanying file LICENSE_1_0.txt or copy at
	4	* http://www.boost.org/LICENSE_1_0.txt)
	5	*
	6	* See http://www.boost.org/libs/multi_index for library home page.
	7	*/
	8
	9	#include <boost/config.hpp>
	10
	11	#if !defined(BOOST_MULTI_INDEX_DETAIL_UNDEF_IF_CONSTEXPR_MACRO)
	12
	13	#if !defined(BOOST_NO_CXX17_IF_CONSTEXPR)
	14	#define BOOST_MULTI_INDEX_IF_CONSTEXPR if constexpr
	15	#else
	16	#define BOOST_MULTI_INDEX_IF_CONSTEXPR if
	17	#if defined(BOOST_MSVC)
	18	#define BOOST_MULTI_INDEX_DETAIL_C4127_DISABLED
	19	#pragma warning(push)
	20	#pragma warning(disable:4127) /* conditional expression is constant */
	21	#endif
	22	#endif
	23
	24	#else
	25
	26	#undef BOOST_MULTI_INDEX_IF_CONSTEXPR
	27	#if defined(BOOST_MULTI_INDEX_DETAIL_C4127_DISABLED)
	28	#pragma warning(pop)
	29	#undef BOOST_MULTI_INDEX_DETAIL_C4127_DISABLED
	30	#endif
	31
	32	#endif