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Diffstat (limited to 'boost/preprocessor/tuple/remove.hpp')
| -rw-r--r-- | boost/preprocessor/tuple/remove.hpp | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/boost/preprocessor/tuple/remove.hpp b/boost/preprocessor/tuple/remove.hpp new file mode 100644 index 0000000000..25fa376193 --- /dev/null +++ b/boost/preprocessor/tuple/remove.hpp @@ -0,0 +1,64 @@ +# /* ************************************************************************** +# * * +# * (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_REMOVE_HPP +# define BOOST_PREPROCESSOR_TUPLE_REMOVE_HPP +# +# include <boost/preprocessor/config/config.hpp> +# +# if BOOST_PP_VARIADICS +# +# include <boost/preprocessor/array/remove.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_REMOVE */ +# +# define BOOST_PP_TUPLE_REMOVE(tuple, i) \ + BOOST_PP_IIF \ + ( \ + BOOST_PP_GREATER(BOOST_PP_TUPLE_SIZE(tuple),1), \ + BOOST_PP_TUPLE_REMOVE_EXEC, \ + BOOST_PP_TUPLE_REMOVE_RETURN \ + ) \ + (tuple, i) \ +/**/ +# +# define BOOST_PP_TUPLE_REMOVE_EXEC(tuple, i) \ + BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_REMOVE(BOOST_PP_TUPLE_TO_ARRAY(tuple), i)) \ +/**/ +# +# define BOOST_PP_TUPLE_REMOVE_RETURN(tuple, i) tuple +# +# /* BOOST_PP_TUPLE_REMOVE_D */ +# +# define BOOST_PP_TUPLE_REMOVE_D(d, tuple, i) \ + BOOST_PP_IIF \ + ( \ + BOOST_PP_GREATER_D(d, BOOST_PP_TUPLE_SIZE(tuple), 1), \ + BOOST_PP_TUPLE_REMOVE_D_EXEC, \ + BOOST_PP_TUPLE_REMOVE_D_RETURN \ + ) \ + (d, tuple, i) \ +/**/ +# +# define BOOST_PP_TUPLE_REMOVE_D_EXEC(d, tuple, i) \ + BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_REMOVE_D(d, BOOST_PP_TUPLE_TO_ARRAY(tuple), i)) \ +/**/ +# +# define BOOST_PP_TUPLE_REMOVE_D_RETURN(d, tuple, i) tuple +# +# endif // BOOST_PP_VARIADICS +# +# endif // BOOST_PREPROCESSOR_TUPLE_REMOVE_HPP |