132 lines
4.0 KiB
Plaintext
132 lines
4.0 KiB
Plaintext
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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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#ifndef BOOST_RANGE_DETAIL_COMBINE_CXX03_HPP
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#define BOOST_RANGE_DETAIL_COMBINE_CXX03_HPP
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#ifndef BOOST_RANGE_MIN_COMBINE_ARGS
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#define BOOST_RANGE_MIN_COMBINE_ARGS 2
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#endif
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#ifndef BOOST_RANGE_MAX_COMBINE_ARGS
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#define BOOST_RANGE_MAX_COMBINE_ARGS 5
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#endif
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#include <boost/config.hpp>
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#include <boost/iterator/zip_iterator.hpp>
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#include <boost/preprocessor/arithmetic/dec.hpp>
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#include <boost/preprocessor/arithmetic/div.hpp>
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#include <boost/preprocessor/arithmetic/mul.hpp>
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#include <boost/preprocessor/control.hpp>
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#include <boost/preprocessor/control/while.hpp>
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#include <boost/preprocessor/facilities/empty.hpp>
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#include <boost/preprocessor/facilities/identity.hpp>
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#include <boost/preprocessor/iteration/local.hpp>
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#include <boost/preprocessor/punctuation/comma.hpp>
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#include <boost/preprocessor/repetition.hpp>
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#include <boost/preprocessor/tuple/elem.hpp>
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#include <boost/range/iterator_range_core.hpp>
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#include <boost/type_traits/remove_reference.hpp>
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#include <boost/mpl/transform.hpp>
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#include <boost/utility/result_of.hpp>
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#include <vector>
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#include <list>
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namespace boost
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{
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namespace range_detail
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{
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template<typename F, typename T, int SIZE>
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struct combined_result_impl;
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template<typename F, typename T>
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struct combined_result
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: combined_result_impl<F, T, tuples::length<T>::value>
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{
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};
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#define BOOST_RANGE_combined_element(z, n, data) \
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typename tuples::element<n, T>::type
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#define BOOST_RANGE_combined_result(z, n, data) \
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template<typename F, typename T> \
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struct combined_result_impl <F,T,n> \
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: result_of<F(BOOST_PP_ENUM(n, BOOST_RANGE_combined_element, ~))> \
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{ \
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};
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#define BOOST_PP_LOCAL_MACRO(n) BOOST_RANGE_combined_result(~,n,~)
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#define BOOST_PP_LOCAL_LIMITS (BOOST_RANGE_MIN_COMBINE_ARGS, \
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BOOST_RANGE_MAX_COMBINE_ARGS)
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#include BOOST_PP_LOCAL_ITERATE()
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#define BOOST_RANGE_combined_get(z, n, data) get<n>(tuple)
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#define BOOST_RANGE_combined_unpack(z, n, data) \
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template<typename F, typename T> inline \
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typename combined_result<F,T>::type \
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unpack_(mpl::int_<n>, F f, const T& tuple) \
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{ \
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return f(BOOST_PP_ENUM(n, BOOST_RANGE_combined_get, ~)); \
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}
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#define BOOST_PP_LOCAL_MACRO(n) BOOST_RANGE_combined_unpack(~,n,~)
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#define BOOST_PP_LOCAL_LIMITS (BOOST_RANGE_MIN_COMBINE_ARGS, \
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BOOST_RANGE_MAX_COMBINE_ARGS)
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#include BOOST_PP_LOCAL_ITERATE()
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} // namespace range_detail
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namespace range
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{
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#define BOOST_RANGE_combined_seq(z, n, data) boost::data(BOOST_PP_CAT(r,n))
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#ifdef BOOST_NO_CXX11_RVALUE_REFERENCES
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#include <boost/range/detail/combine_no_rvalue.hpp>
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#else // by using rvalue references we avoid requiring 2^n overloads.
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#include <boost/range/detail/combine_rvalue.hpp>
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#endif
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#define BOOST_PP_LOCAL_MACRO(n) BOOST_RANGE_combine(~,n,~)
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#define BOOST_PP_LOCAL_LIMITS (BOOST_RANGE_MIN_COMBINE_ARGS, \
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BOOST_RANGE_MAX_COMBINE_ARGS)
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#include BOOST_PP_LOCAL_ITERATE()
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} // namespace range
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using boost::range::combine;
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} // namespace boost
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#endif // include guard
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#undef BOOST_RANGE_combined_element
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#undef BOOST_RANGE_combined_result
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#undef BOOST_RANGE_combined_get
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#undef BOOST_RANGE_combined_unpack
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#undef BOOST_RANGE_combined_seq
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#undef BOOST_RANGE_combined_exp_pred
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#undef BOOST_RANGE_combined_exp_op
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#undef BOOST_RANGE_combined_exp
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#undef BOOST_RANGE_combined_bitset_pred
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#undef BOOST_RANGE_combined_bitset_op
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#undef BOOST_RANGE_combined_bitset
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#undef BOOST_RANGE_combined_range_iterator
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#undef BOOST_RANGE_combined_args
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#undef BOOST_RANGE_combine_impl
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#undef BOOST_RANGE_combine
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