ext-boost/boost/range/detail/combine_rvalue.hpp
2014-12-07 20:45:27 +01:00

33 lines
1.2 KiB
C++

// Boost.Range library
//
// Copyright Neil Groves 2014. Use, modification and
// distribution is subject to 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)
//
// For more information, see http://www.boost.org/libs/range/
//
#define BOOST_RANGE_combined_args(z, n, i) \
BOOST_PP_CAT(R, n)&& BOOST_PP_CAT(r, n)
#define BOOST_RANGE_combined_range_iterator(z, n, i) \
typename range_iterator< \
typename remove_reference<BOOST_PP_CAT(R,n)>::type \
>::type
#define BOOST_RANGE_combine(z, n, data) \
template <BOOST_PP_ENUM_PARAMS(n, typename R)> \
inline range::combined_range< \
tuple<BOOST_PP_ENUM(n, BOOST_RANGE_combined_range_iterator, ~)> \
> \
combine(BOOST_PP_ENUM(n, BOOST_RANGE_combined_args, ~)) \
{ \
typedef tuple< \
BOOST_PP_ENUM(n, BOOST_RANGE_combined_range_iterator, ~) \
> rng_tuple_t; \
return range::combined_range<rng_tuple_t>( \
rng_tuple_t(BOOST_PP_ENUM(n, BOOST_RANGE_combined_seq, begin)), \
rng_tuple_t(BOOST_PP_ENUM(n, BOOST_RANGE_combined_seq, end))); \
}