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- # /* **************************************************************************
- # * *
- # * (C) Copyright Edward Diener 2013.
- # * 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 for most recent version. */
- #
- # ifndef BOOST_PREPROCESSOR_TUPLE_POP_BACK_HPP
- # define BOOST_PREPROCESSOR_TUPLE_POP_BACK_HPP
- #
- # include <boost/preprocessor/config/config.hpp>
- # include <boost/preprocessor/array/pop_back.hpp>
- # include <boost/preprocessor/array/to_tuple.hpp>
- # include <boost/preprocessor/comparison/greater.hpp>
- # include <boost/preprocessor/control/iif.hpp>
- # include <boost/preprocessor/tuple/size.hpp>
- # include <boost/preprocessor/tuple/to_array.hpp>
- #
- # /* BOOST_PP_TUPLE_POP_BACK */
- #
- # define BOOST_PP_TUPLE_POP_BACK(tuple) \
- BOOST_PP_IIF \
- ( \
- BOOST_PP_GREATER(BOOST_PP_TUPLE_SIZE(tuple),1), \
- BOOST_PP_TUPLE_POP_BACK_EXEC, \
- BOOST_PP_TUPLE_POP_BACK_RETURN \
- ) \
- (tuple) \
- /**/
- #
- # define BOOST_PP_TUPLE_POP_BACK_EXEC(tuple) \
- BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_POP_BACK(BOOST_PP_TUPLE_TO_ARRAY(tuple))) \
- /**/
- #
- # define BOOST_PP_TUPLE_POP_BACK_RETURN(tuple) tuple
- #
- # /* BOOST_PP_TUPLE_POP_BACK_Z */
- #
- # define BOOST_PP_TUPLE_POP_BACK_Z(z, tuple) \
- BOOST_PP_IIF \
- ( \
- BOOST_PP_GREATER(BOOST_PP_TUPLE_SIZE(tuple),1), \
- BOOST_PP_TUPLE_POP_BACK_Z_EXEC, \
- BOOST_PP_TUPLE_POP_BACK_Z_RETURN \
- ) \
- (z, tuple) \
- /**/
- #
- # define BOOST_PP_TUPLE_POP_BACK_Z_EXEC(z, tuple) \
- BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_POP_BACK_Z(z, BOOST_PP_TUPLE_TO_ARRAY(tuple))) \
- /**/
- #
- # define BOOST_PP_TUPLE_POP_BACK_Z_RETURN(z, tuple) tuple
- #
- # endif // BOOST_PREPROCESSOR_TUPLE_POP_BACK_HPP
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