projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | //---------------------------------------------------------------------------// |
| 2 | // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com> | |
| 3 | // | |
| 4 | // Distributed under the Boost Software License, Version 1.0 | |
| 5 | // See accompanying file LICENSE_1_0.txt or copy at | |
| 6 | // http://www.boost.org/LICENSE_1_0.txt | |
| 7 | // | |
| 8 | // See http://boostorg.github.com/compute for more information. | |
| 9 | //---------------------------------------------------------------------------// | |
| 10 | ||
| 11 | #ifndef BOOST_COMPUTE_ITERATOR_DETAIL_GET_BASE_ITERATOR_BUFFER_HPP | |
| 12 | #define BOOST_COMPUTE_ITERATOR_DETAIL_GET_BASE_ITERATOR_BUFFER_HPP | |
| 13 | ||
| 14 | namespace boost { | |
| 15 | namespace compute { | |
| 16 | namespace detail { | |
| 17 | ||
| 18 | // returns the buffer for an iterator adaptor's base iterator if | |
| 19 | // it exists, otherwise returns a null buffer object. | |
| 20 | template<class Iterator> | |
| 21 | inline const buffer& | |
| 22 | get_base_iterator_buffer(const Iterator &iter, | |
| 23 | typename boost::enable_if< | |
| 24 | is_buffer_iterator< | |
| 25 | typename Iterator::base_type | |
| 26 | > | |
| 27 | >::type* = 0) | |
| 28 | { | |
| 29 | return iter.base().get_buffer(); | |
| 30 | } | |
| 31 | ||
| 32 | template<class Iterator> | |
| 33 | inline const buffer& | |
| 34 | get_base_iterator_buffer(const Iterator &iter, | |
| 35 | typename boost::disable_if< | |
| 36 | is_buffer_iterator< | |
| 37 | typename Iterator::base_type | |
| 38 | > | |
| 39 | >::type* = 0) | |
| 40 | { | |
| 41 | (void) iter; | |
| 42 | ||
| 43 | static buffer null_buffer; | |
| 44 | ||
| 45 | return null_buffer; | |
| 46 | } | |
| 47 | ||
| 48 | } // end detail namespace | |
| 49 | } // end compute namespace | |
| 50 | } // end boost namespace | |
| 51 | ||
| 52 | #endif // BOOST_COMPUTE_ITERATOR_DETAIL_GET_BASE_ITERATOR_BUFFER_HPP |