Libosmium: include/osmium/io/output_iterator.hpp Source File

Libosmium 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
6This file is part of Osmium (https://osmcode.org/libosmium).
7
8Copyright 2013-2026 Jochen Topf <jochen@topf.org> and others (see README).
9
10Boost Software License - Version 1.0 - August 17th, 2003
11
12Permission is hereby granted, free of charge, to any person or organization
13obtaining a copy of the software and accompanying documentation covered by
14this license (the "Software") to use, reproduce, display, distribute,
15execute, and transmit the Software, and to prepare derivative works of the
16Software, and to permit third-parties to whom the Software is furnished to
17do so, all subject to the following:
18
19The copyright notices in the Software and this entire statement, including
20the above license grant, this restriction and the following disclaimer,
21must be included in all copies of the Software, in whole or in part, and
22all derivative works of the Software, unless such copies or derivative
23works are solely in the form of machine-executable object code generated by
24a source language processor.
25
26THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
29SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
30FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
31ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
32DEALINGS IN THE SOFTWARE.
33
34*/
35
36#include <osmium/osm/diff_object.hpp>
37
38#include <cstddef>
39#include <iterator>
40
41namespace 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
Everything related to input and output of OSM data.
Definition bzip2_compression.hpp:86
osmium::io::make_output_iterator
OutputIterator< TDest > make_output_iterator(TDest &destination)
Definition output_iterator.hpp:95
osmium::memory
Definition osm_object_builder.hpp:66
osmium
Namespace for everything in the Osmium library.
Definition assembler.hpp:53