Libosmium 2.22.0 Fast and flexible C++ library for working with OpenStreetMap data

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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 2013-2025 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
36#include <osmium/osm/diff_object.hpp>
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>
50 class OutputIterator {
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
66 OutputIterator& operator=(const osmium::memory::Item& item) {
67 (*m_destination)(item);
68 return *this;
69 }
70
71 OutputIterator& operator=(const osmium::DiffObject& diff) {
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>
95 OutputIterator<TDest> make_output_iterator(TDest& destination) {
96 return OutputIterator<TDest>{destination};
97 }
98
99 } // namespace io
100
101} // namespace osmium
102
103#endif // OSMIUM_IO_OUTPUT_ITERATOR_HPP
osmium::DiffObject
Definition diff_object.hpp:66
osmium::DiffObject::curr
const osmium::OSMObject & curr() const noexcept
Definition diff_object.hpp:115
osmium::io::OutputIterator
Definition output_iterator.hpp:50
osmium::io::OutputIterator::m_destination
TDest * m_destination
Definition output_iterator.hpp:52
osmium::io::OutputIterator::pointer
void pointer
Definition output_iterator.hpp:59
osmium::io::OutputIterator::operator*
const OutputIterator & operator*() const noexcept
Definition output_iterator.hpp:80
osmium::io::OutputIterator::OutputIterator
OutputIterator(TDest &destination)
Definition output_iterator.hpp:62
osmium::io::OutputIterator::value_type
void value_type
Definition output_iterator.hpp:57
osmium::io::OutputIterator::reference
void reference
Definition output_iterator.hpp:60
osmium::io::OutputIterator::difference_type
void difference_type
Definition output_iterator.hpp:58
osmium::io::OutputIterator::operator=
OutputIterator & operator=(const osmium::DiffObject &diff)
Definition output_iterator.hpp:71
osmium::io::OutputIterator::operator++
OutputIterator & operator++() noexcept
Definition output_iterator.hpp:84
osmium::io::OutputIterator::operator++
OutputIterator operator++(int) const noexcept
Definition output_iterator.hpp:88
osmium::io::OutputIterator::operator*
OutputIterator & operator*() noexcept
Definition output_iterator.hpp:76
osmium::io::OutputIterator::operator=
OutputIterator & operator=(const osmium::memory::Item &item)
Definition output_iterator.hpp:66
osmium::io::OutputIterator::iterator_category
std::output_iterator_tag iterator_category
Definition output_iterator.hpp:56
osmium::memory::Item
Definition item.hpp:105
diff_object.hpp
osmium::io::make_output_iterator
OutputIterator< TDest > make_output_iterator(TDest &destination)
Definition output_iterator.hpp:95
osmium
Namespace for everything in the Osmium library.
Definition assembler.hpp:53