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Using BOOST_PP_IDENTITY makes code clearer.

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This commit is contained in:
Edward Diener
2014-05-26 16:36:30 -04:00
parent 56525c76cc
commit b70598c357
3 changed files with 7 additions and 6 deletions
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6
include/boost/preprocessor/seq/rest_n.hpp
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@ -14,17 +14,17 @@
#
# include <boost/preprocessor/arithmetic/inc.hpp>
# include <boost/preprocessor/config/config.hpp>
# include <boost/preprocessor/facilities/empty.hpp>
# include <boost/preprocessor/facilities/identity.hpp>
# include <boost/preprocessor/seq/detail/split.hpp>
# include <boost/preprocessor/tuple/elem.hpp>
#
# /* BOOST_PP_SEQ_REST_N */
#
# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
# define BOOST_PP_SEQ_REST_N(n, seq) BOOST_PP_TUPLE_ELEM(2, 1, BOOST_PP_SEQ_SPLIT(BOOST_PP_INC(n), (nil) seq BOOST_PP_EMPTY))()
# define BOOST_PP_SEQ_REST_N(n, seq) BOOST_PP_TUPLE_ELEM(2, 1, BOOST_PP_SEQ_SPLIT(BOOST_PP_INC(n), BOOST_PP_IDENTITY( (nil) seq )))()
# else
# define BOOST_PP_SEQ_REST_N(n, seq) BOOST_PP_SEQ_REST_N_I(n, seq)
# define BOOST_PP_SEQ_REST_N_I(n, seq) BOOST_PP_TUPLE_ELEM(2, 1, BOOST_PP_SEQ_SPLIT(BOOST_PP_INC(n), (nil) seq BOOST_PP_EMPTY))()
# define BOOST_PP_SEQ_REST_N_I(n, seq) BOOST_PP_TUPLE_ELEM(2, 1, BOOST_PP_SEQ_SPLIT(BOOST_PP_INC(n), BOOST_PP_IDENTITY( (nil) seq )))()
# endif
#
# endif