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33 lines
1.2 KiB
C++
33 lines
1.2 KiB
C++
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// Boost.Range library
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//
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// Copyright Neil Groves 2014. Use, modification and
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// distribution is subject to the Boost Software License, Version
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// For more information, see http://www.boost.org/libs/range/
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//
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#define BOOST_RANGE_combined_args(z, n, i) \
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BOOST_PP_CAT(R, n)&& BOOST_PP_CAT(r, n)
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#define BOOST_RANGE_combined_range_iterator(z, n, i) \
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typename range_iterator< \
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typename remove_reference<BOOST_PP_CAT(R,n)>::type \
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>::type
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#define BOOST_RANGE_combine(z, n, data) \
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template <BOOST_PP_ENUM_PARAMS(n, typename R)> \
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inline range::combined_range< \
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tuple<BOOST_PP_ENUM(n, BOOST_RANGE_combined_range_iterator, ~)> \
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> \
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combine(BOOST_PP_ENUM(n, BOOST_RANGE_combined_args, ~)) \
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{ \
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typedef tuple< \
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BOOST_PP_ENUM(n, BOOST_RANGE_combined_range_iterator, ~) \
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> rng_tuple_t; \
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return range::combined_range<rng_tuple_t>( \
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rng_tuple_t(BOOST_PP_ENUM(n, BOOST_RANGE_combined_seq, begin)), \
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rng_tuple_t(BOOST_PP_ENUM(n, BOOST_RANGE_combined_seq, end))); \
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}
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