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/Src/Dependencies/Boost/boost/preprocessor/seq/cat.hpp

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C++ Header | 49 lines | 40 code | 0 blank | 9 comment | 0 complexity | f48081c21d91c04949b213ebdbc3057c MD5 | raw file
 1# /* **************************************************************************
 2#  *                                                                          *
 3#  *     (C) Copyright Paul Mensonides 2002.
 4#  *     Distributed under the Boost Software License, Version 1.0. (See
 5#  *     accompanying file LICENSE_1_0.txt or copy at
 6#  *     http://www.boost.org/LICENSE_1_0.txt)
 7#  *                                                                          *
 8#  ************************************************************************** */
 9#
10# /* See http://www.boost.org for most recent version. */
11#
12# ifndef BOOST_PREPROCESSOR_SEQ_CAT_HPP
13# define BOOST_PREPROCESSOR_SEQ_CAT_HPP
14#
15# include <boost/preprocessor/arithmetic/dec.hpp>
16# include <boost/preprocessor/config/config.hpp>
17# include <boost/preprocessor/control/if.hpp>
18# include <boost/preprocessor/seq/fold_left.hpp>
19# include <boost/preprocessor/seq/seq.hpp>
20# include <boost/preprocessor/seq/size.hpp>
21# include <boost/preprocessor/tuple/eat.hpp>
22#
23# /* BOOST_PP_SEQ_CAT */
24#
25# define BOOST_PP_SEQ_CAT(seq) \
26    BOOST_PP_IF( \
27        BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(seq)), \
28        BOOST_PP_SEQ_CAT_I, \
29        BOOST_PP_SEQ_HEAD \
30    )(seq) \
31    /**/
32# define BOOST_PP_SEQ_CAT_I(seq) BOOST_PP_SEQ_FOLD_LEFT(BOOST_PP_SEQ_CAT_O, BOOST_PP_SEQ_HEAD(seq), BOOST_PP_SEQ_TAIL(seq))
33#
34# define BOOST_PP_SEQ_CAT_O(s, st, elem) BOOST_PP_SEQ_CAT_O_I(st, elem)
35# define BOOST_PP_SEQ_CAT_O_I(a, b) a ## b
36#
37# /* BOOST_PP_SEQ_CAT_S */
38#
39# define BOOST_PP_SEQ_CAT_S(s, seq) \
40    BOOST_PP_IF( \
41        BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(seq)), \
42        BOOST_PP_SEQ_CAT_S_I_A, \
43        BOOST_PP_SEQ_CAT_S_I_B \
44    )(s, seq) \
45    /**/
46# define BOOST_PP_SEQ_CAT_S_I_A(s, seq) BOOST_PP_SEQ_FOLD_LEFT_ ## s(BOOST_PP_SEQ_CAT_O, BOOST_PP_SEQ_HEAD(seq), BOOST_PP_SEQ_TAIL(seq))
47# define BOOST_PP_SEQ_CAT_S_I_B(s, seq) BOOST_PP_SEQ_HEAD(seq)
48#
49# endif