Libosmium  2.20.0
Fast and flexible C++ library for working with OpenStreetMap data
output_iterator.hpp
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1 #ifndef OSMIUM_IO_OUTPUT_ITERATOR_HPP
2 #define OSMIUM_IO_OUTPUT_ITERATOR_HPP
3 
4 /*
5 
6 This file is part of Osmium (https://osmcode.org/libosmium).
7 
8 Copyright 2013-2023 Jochen Topf <jochen@topf.org> and others (see README).
9 
10 Boost Software License - Version 1.0 - August 17th, 2003
11 
12 Permission is hereby granted, free of charge, to any person or organization
13 obtaining a copy of the software and accompanying documentation covered by
14 this license (the "Software") to use, reproduce, display, distribute,
15 execute, and transmit the Software, and to prepare derivative works of the
16 Software, and to permit third-parties to whom the Software is furnished to
17 do so, all subject to the following:
18 
19 The copyright notices in the Software and this entire statement, including
20 the above license grant, this restriction and the following disclaimer,
21 must be included in all copies of the Software, in whole or in part, and
22 all derivative works of the Software, unless such copies or derivative
23 works are solely in the form of machine-executable object code generated by
24 a source language processor.
25 
26 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28 FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
29 SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
30 FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
31 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
32 DEALINGS IN THE SOFTWARE.
33 
34 */
35 
37 
38 #include <cstddef>
39 #include <iterator>
40 
41 namespace osmium {
42 
43  namespace memory {
44  class Item;
45  } // namespace memory
46 
47  namespace io {
48 
49  template <typename TDest>
51 
52  TDest* m_destination;
53 
54  public:
55 
56  using iterator_category = std::output_iterator_tag;
57  using value_type = void;
58  using difference_type = void;
59  using pointer = void;
60  using reference = void;
61 
62  explicit OutputIterator(TDest& destination) :
63  m_destination(&destination) {
64  }
65 
67  (*m_destination)(item);
68  return *this;
69  }
70 
72  this->operator=(diff.curr());
73  return *this;
74  }
75 
76  OutputIterator& operator*() noexcept {
77  return *this;
78  }
79 
80  const OutputIterator& operator*() const noexcept {
81  return *this;
82  }
83 
84  OutputIterator& operator++() noexcept {
85  return *this;
86  }
87 
88  OutputIterator operator++(int) const noexcept {
89  return *this;
90  }
91 
92  }; // class OutputIterator
93 
94  template <typename TDest>
96  return OutputIterator<TDest>{destination};
97  }
98 
99  } // namespace io
100 
101 } // namespace osmium
102 
103 #endif // OSMIUM_IO_OUTPUT_ITERATOR_HPP
Definition: diff_object.hpp:66
const osmium::OSMObject & curr() const noexcept
Definition: diff_object.hpp:115
Definition: output_iterator.hpp:50
TDest * m_destination
Definition: output_iterator.hpp:52
void pointer
Definition: output_iterator.hpp:59
OutputIterator(TDest &destination)
Definition: output_iterator.hpp:62
OutputIterator & operator=(const osmium::memory::Item &item)
Definition: output_iterator.hpp:66
void value_type
Definition: output_iterator.hpp:57
OutputIterator & operator*() noexcept
Definition: output_iterator.hpp:76
void reference
Definition: output_iterator.hpp:60
const OutputIterator & operator*() const noexcept
Definition: output_iterator.hpp:80
void difference_type
Definition: output_iterator.hpp:58
OutputIterator & operator++() noexcept
Definition: output_iterator.hpp:84
OutputIterator operator++(int) const noexcept
Definition: output_iterator.hpp:88
OutputIterator & operator=(const osmium::DiffObject &diff)
Definition: output_iterator.hpp:71
std::output_iterator_tag iterator_category
Definition: output_iterator.hpp:56
Definition: item.hpp:105
OutputIterator< TDest > make_output_iterator(TDest &destination)
Definition: output_iterator.hpp:95
Namespace for everything in the Osmium library.
Definition: assembler.hpp:53