| Brian Silverman | 407d3cd | 2018-08-04 17:48:52 -0700 | [diff] [blame^] | 1 | [/ |
| 2 | / Copyright (c) 2014 Andrey Semashev |
| 3 | / |
| 4 | / Distributed under the Boost Software License, Version 1.0. (See accompanying |
| 5 | / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| 6 | /] |
| 7 | |
| 8 | [section:null_deleter null_deleter] |
| 9 | |
| 10 | [simplesect Authors] |
| 11 | |
| 12 | * Andrey Semashev |
| 13 | |
| 14 | [endsimplesect] |
| 15 | |
| 16 | [section Header <boost/core/null_deleter.hpp>] |
| 17 | |
| 18 | The header `<boost/core/null_deleter.hpp>` defines the `boost::null_deleter` function object, |
| 19 | which can be used as a deleter with smart pointers such as `unique_ptr` or `shared_ptr`. The |
| 20 | deleter doesn't do anything with the pointer provided upon deallocation, which makes it useful |
| 21 | when the pointed object is deallocated elsewhere. |
| 22 | |
| 23 | [section Example] |
| 24 | `` |
| 25 | std::shared_ptr< std::ostream > make_stream() |
| 26 | { |
| 27 | return std::shared_ptr< std::ostream >(&std::cout, boost::null_deleter()); |
| 28 | } |
| 29 | `` |
| 30 | [endsect] |
| 31 | |
| 32 | [endsect] |
| 33 | |
| 34 | [endsect] |