| Brian Silverman | 598d029 | 2018-08-04 23:56:47 -0700 | [diff] [blame^] | 1 | // Boost.Range library |
| 2 | // |
| 3 | // Copyright Neil Groves 2014. Use, modification and |
| 4 | // distribution is subject to the Boost Software License, Version |
| 5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| 6 | // http://www.boost.org/LICENSE_1_0.txt) |
| 7 | // |
| 8 | // For more information, see http://www.boost.org/libs/range/ |
| 9 | // |
| 10 | #define BOOST_RANGE_combined_args(z, n, i) \ |
| 11 | BOOST_PP_CAT(R, n)&& BOOST_PP_CAT(r, n) |
| 12 | |
| 13 | #define BOOST_RANGE_combined_range_iterator(z, n, i) \ |
| 14 | typename range_iterator< \ |
| 15 | typename remove_reference<BOOST_PP_CAT(R,n)>::type \ |
| 16 | >::type |
| 17 | |
| 18 | |
| 19 | #define BOOST_RANGE_combine(z, n, data) \ |
| 20 | template <BOOST_PP_ENUM_PARAMS(n, typename R)> \ |
| 21 | inline range::combined_range< \ |
| 22 | tuple<BOOST_PP_ENUM(n, BOOST_RANGE_combined_range_iterator, ~)> \ |
| 23 | > \ |
| 24 | combine(BOOST_PP_ENUM(n, BOOST_RANGE_combined_args, ~)) \ |
| 25 | { \ |
| 26 | typedef tuple< \ |
| 27 | BOOST_PP_ENUM(n, BOOST_RANGE_combined_range_iterator, ~) \ |
| 28 | > rng_tuple_t; \ |
| 29 | return range::combined_range<rng_tuple_t>( \ |
| 30 | rng_tuple_t(BOOST_PP_ENUM(n, BOOST_RANGE_combined_seq, begin)), \ |
| 31 | rng_tuple_t(BOOST_PP_ENUM(n, BOOST_RANGE_combined_seq, end))); \ |
| 32 | } |