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Editing: for_each.hpp
# /* ************************************************************************** # * * # * (C) Copyright Paul Mensonides 2002. # * 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_SEQ_FOR_EACH_HPP # define BOOST_PREPROCESSOR_SEQ_FOR_EACH_HPP # # include <boost/preprocessor/arithmetic/dec.hpp> # include <boost/preprocessor/config/config.hpp> # include <boost/preprocessor/control/if.hpp> # include <boost/preprocessor/control/iif.hpp> # include <boost/preprocessor/repetition/for.hpp> # include <boost/preprocessor/seq/seq.hpp> # include <boost/preprocessor/seq/size.hpp> # include <boost/preprocessor/seq/detail/is_empty.hpp> # include <boost/preprocessor/tuple/elem.hpp> # include <boost/preprocessor/tuple/rem.hpp> # # /* BOOST_PP_SEQ_FOR_EACH */ # # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() # define BOOST_PP_SEQ_FOR_EACH(macro, data, seq) BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK(macro, data, seq) # else # define BOOST_PP_SEQ_FOR_EACH(macro, data, seq) BOOST_PP_SEQ_FOR_EACH_D(macro, data, seq) # define BOOST_PP_SEQ_FOR_EACH_D(macro, data, seq) BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK(macro, data, seq) # endif # # define BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EXEC(macro, data, seq) BOOST_PP_FOR((macro, data, seq, BOOST_PP_SEQ_SIZE(seq)), BOOST_PP_SEQ_FOR_EACH_P, BOOST_PP_SEQ_FOR_EACH_O, BOOST_PP_SEQ_FOR_EACH_M) # define BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EMPTY(macro, data, seq) # # define BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK(macro, data, seq) \ BOOST_PP_IIF \ ( \ BOOST_PP_SEQ_DETAIL_IS_NOT_EMPTY(seq), \ BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EXEC, \ BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EMPTY \ ) \ (macro, data, seq) \ /**/ # # define BOOST_PP_SEQ_FOR_EACH_P(r, x) BOOST_PP_TUPLE_ELEM(4, 3, x) # # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT() # define BOOST_PP_SEQ_FOR_EACH_O(r, x) BOOST_PP_SEQ_FOR_EACH_O_I x # else # define BOOST_PP_SEQ_FOR_EACH_O(r, x) BOOST_PP_SEQ_FOR_EACH_O_I(BOOST_PP_TUPLE_ELEM(4, 0, x), BOOST_PP_TUPLE_ELEM(4, 1, x), BOOST_PP_TUPLE_ELEM(4, 2, x), BOOST_PP_TUPLE_ELEM(4, 3, x)) # endif # # define BOOST_PP_SEQ_FOR_EACH_O_I(macro, data, seq, sz) \ BOOST_PP_SEQ_FOR_EACH_O_I_DEC(macro, data, seq, BOOST_PP_DEC(sz)) \ /**/ # define BOOST_PP_SEQ_FOR_EACH_O_I_DEC(macro, data, seq, sz) \ ( \ macro, \ data, \ BOOST_PP_IF \ ( \ sz, \ BOOST_PP_SEQ_FOR_EACH_O_I_TAIL, \ BOOST_PP_SEQ_FOR_EACH_O_I_NIL \ ) \ (seq), \ sz \ ) \ /**/ # define BOOST_PP_SEQ_FOR_EACH_O_I_TAIL(seq) BOOST_PP_SEQ_TAIL(seq) # define BOOST_PP_SEQ_FOR_EACH_O_I_NIL(seq) BOOST_PP_NIL # # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT() # define BOOST_PP_SEQ_FOR_EACH_M(r, x) BOOST_PP_SEQ_FOR_EACH_M_IM(r, BOOST_PP_TUPLE_REM_4 x) # define BOOST_PP_SEQ_FOR_EACH_M_IM(r, im) BOOST_PP_SEQ_FOR_EACH_M_I(r, im) # else # define BOOST_PP_SEQ_FOR_EACH_M(r, x) BOOST_PP_SEQ_FOR_EACH_M_I(r, BOOST_PP_TUPLE_ELEM(4, 0, x), BOOST_PP_TUPLE_ELEM(4, 1, x), BOOST_PP_TUPLE_ELEM(4, 2, x), BOOST_PP_TUPLE_ELEM(4, 3, x)) # endif # # define BOOST_PP_SEQ_FOR_EACH_M_I(r, macro, data, seq, sz) macro(r, data, BOOST_PP_SEQ_HEAD(seq)) # # /* BOOST_PP_SEQ_FOR_EACH_R */ # # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() # define BOOST_PP_SEQ_FOR_EACH_R(r, macro, data, seq) BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_R(r, macro, data, seq) # else # define BOOST_PP_SEQ_FOR_EACH_R(r, macro, data, seq) BOOST_PP_SEQ_FOR_EACH_R_I(r, macro, data, seq) # define BOOST_PP_SEQ_FOR_EACH_R_I(r, macro, data, seq) BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_R(r, macro, data, seq) # endif # # define BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EXEC_R(r, macro, data, seq) BOOST_PP_FOR_ ## r((macro, data, seq, BOOST_PP_SEQ_SIZE(seq)), BOOST_PP_SEQ_FOR_EACH_P, BOOST_PP_SEQ_FOR_EACH_O, BOOST_PP_SEQ_FOR_EACH_M) # define BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EMPTY_R(r, macro, data, seq) # # define BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_R(r, macro, data, seq) \ BOOST_PP_IIF \ ( \ BOOST_PP_SEQ_DETAIL_IS_NOT_EMPTY(seq), \ BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EXEC_R, \ BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EMPTY_R \ ) \ (r, macro, data, seq) \ /**/ # # endif
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