forked from boostorg/mpl
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
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#if !defined(BOOST_PP_IS_ITERATING)
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///// header body
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#ifndef BOOST_MPL_PLACEHOLDERS_HPP_INCLUDED
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#define BOOST_MPL_PLACEHOLDERS_HPP_INCLUDED
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// + file: boost/mpl/placeholders.hpp
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// + last modified: 25/feb/03
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// Copyright (c) 2001-03
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// Peter Dimov, Aleksey Gurtovoy
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//
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// Permission to use, copy, modify, distribute and sell this software
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// and its documentation for any purpose is hereby granted without fee,
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// provided that the above copyright notice appears in all copies and
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// that both the copyright notice and this permission notice appear in
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// supporting documentation. No representations are made about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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//
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// See http://www.boost.org/libs/mpl for documentation.
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#if !defined(BOOST_MPL_PREPROCESSING_MODE)
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# include "boost/mpl/arg.hpp"
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#endif
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#include "boost/mpl/aux_/config/use_preprocessed.hpp"
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#if !defined(BOOST_MPL_NO_PREPROCESSED_HEADERS) \
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&& !defined(BOOST_MPL_PREPROCESSING_MODE)
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# define BOOST_MPL_PREPROCESSED_HEADER placeholders.hpp
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# include "boost/mpl/aux_/include_preprocessed.hpp"
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#else
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# include "boost/mpl/aux_/config/nttp.hpp"
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# include "boost/mpl/limits/arity.hpp"
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# include "boost/preprocessor/iterate.hpp"
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# include "boost/preprocessor/cat.hpp"
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namespace boost {
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namespace mpl {
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// watch out for GNU gettext users, who #define _(x)
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#if !defined(_) || defined(BOOST_MPL_NO_UNNAMED_PLACEHOLDER_SUPPORT)
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typedef arg<-1> _;
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namespace placeholders {
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using boost::mpl::_;
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}
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#endif
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//: agurt, 17/mar/02: one more placeholder for the last 'apply#'
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//: specialization
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#define BOOST_PP_ITERATION_PARAMS_1 \
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(3,(1, BOOST_MPL_METAFUNCTION_MAX_ARITY + 1, "boost/mpl/placeholders.hpp"))
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#include BOOST_PP_ITERATE()
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} // namespace mpl
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} // namespace boost
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#endif // BOOST_MPL_USE_PREPROCESSED_HEADERS
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#endif // BOOST_MPL_PLACEHOLDERS_HPP_INCLUDED
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///// iteration
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#else
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#define i BOOST_PP_FRAME_ITERATION(1)
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typedef arg<i> BOOST_PP_CAT(_,i);
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namespace placeholders {
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using boost::mpl::BOOST_PP_CAT(_,i);
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}
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#undef i
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#endif // BOOST_PP_IS_ITERATING
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