| // Boost.Range library | |
| // | |
| // Copyright Neil Groves 2010. 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/ | |
| // | |
| #ifndef BOOST_RANGE_ADAPTOR_TYPE_ERASED_HPP_INCLUDED | |
| #define BOOST_RANGE_ADAPTOR_TYPE_ERASED_HPP_INCLUDED | |
| #include <boost/range/reference.hpp> | |
| #include <boost/range/value_type.hpp> | |
| #include <boost/range/iterator_range_core.hpp> | |
| #include <boost/range/any_range.hpp> | |
| #include <boost/cast.hpp> | |
| namespace boost | |
| { | |
| namespace adaptors | |
| { | |
| template< | |
| class Value = use_default | |
| , class Traversal = use_default | |
| , class Reference = use_default | |
| , class Difference = use_default | |
| , class Buffer = use_default | |
| > | |
| struct type_erased | |
| { | |
| }; | |
| template< | |
| class SinglePassRange | |
| , class Value | |
| , class Traversal | |
| , class Reference | |
| , class Difference | |
| , class Buffer | |
| > | |
| typename any_range_type_generator< | |
| SinglePassRange | |
| , Value | |
| , Traversal | |
| , Reference | |
| , Difference | |
| , Buffer | |
| >::type | |
| operator|(SinglePassRange& rng, | |
| type_erased< | |
| Value | |
| , Traversal | |
| , Reference | |
| , Difference | |
| , Buffer | |
| >) | |
| { | |
| typedef typename any_range_type_generator< | |
| SinglePassRange | |
| , Value | |
| , Traversal | |
| , Reference | |
| , Difference | |
| , Buffer | |
| >::type range_type; | |
| return range_type(boost::begin(rng), boost::end(rng)); | |
| } | |
| template< | |
| class SinglePassRange | |
| , class Value | |
| , class Traversal | |
| , class Reference | |
| , class Difference | |
| , class Buffer | |
| > | |
| typename any_range_type_generator< | |
| const SinglePassRange | |
| , Value | |
| , Traversal | |
| , Reference | |
| , Difference | |
| , Buffer | |
| >::type | |
| operator|(const SinglePassRange& rng, | |
| type_erased< | |
| Value | |
| , Traversal | |
| , Reference | |
| , Difference | |
| , Buffer | |
| >) | |
| { | |
| typedef typename any_range_type_generator< | |
| const SinglePassRange | |
| , Value | |
| , Traversal | |
| , Reference | |
| , Difference | |
| , Buffer | |
| >::type range_type; | |
| return range_type(boost::begin(rng), boost::end(rng)); | |
| } | |
| template< | |
| class SinglePassRange | |
| , class Value | |
| , class Traversal | |
| , class Reference | |
| , class Difference | |
| , class Buffer | |
| > | |
| typename any_range_type_generator< | |
| SinglePassRange | |
| , Value | |
| , Traversal | |
| , Reference | |
| , Difference | |
| , Buffer | |
| >::type | |
| type_erase(SinglePassRange& rng | |
| , type_erased< | |
| Value | |
| , Traversal | |
| , Reference | |
| , Difference | |
| , Buffer | |
| > = type_erased<>() | |
| ) | |
| { | |
| typedef typename any_range_type_generator< | |
| SinglePassRange | |
| , Value | |
| , Traversal | |
| , Reference | |
| , Difference | |
| , Buffer | |
| >::type range_type; | |
| return range_type(boost::begin(rng), boost::end(rng)); | |
| } | |
| template< | |
| class SinglePassRange | |
| , class Value | |
| , class Traversal | |
| , class Reference | |
| , class Difference | |
| , class Buffer | |
| > | |
| typename any_range_type_generator< | |
| const SinglePassRange | |
| , Value | |
| , Traversal | |
| , Reference | |
| , Difference | |
| , Buffer | |
| >::type | |
| type_erase(const SinglePassRange& rng | |
| , type_erased< | |
| Value | |
| , Traversal | |
| , Reference | |
| , Difference | |
| , Buffer | |
| > = type_erased<>() | |
| ) | |
| { | |
| typedef typename any_range_type_generator< | |
| const SinglePassRange | |
| , Value | |
| , Traversal | |
| , Reference | |
| , Difference | |
| , Buffer | |
| >::type range_type; | |
| return range_type(boost::begin(rng), boost::end(rng)); | |
| } | |
| } | |
| } // namespace boost | |
| #endif // include guard |