Libosmium  2.11.1
Fast and flexible C++ library for working with OpenStreetMap data
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Pages
entity.hpp
Go to the documentation of this file.
1 #ifndef OSMIUM_OSM_ENTITY_HPP
2 #define OSMIUM_OSM_ENTITY_HPP
3 
4 /*
5 
6 This file is part of Osmium (http://osmcode.org/libosmium).
7 
8 Copyright 2013-2017 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/memory/item.hpp>
38 #include <osmium/osm/item_type.hpp>
39 
40 namespace osmium {
41 
42  namespace detail {
43 
44  template <typename TSubitem, typename TIter>
45  inline TSubitem& subitem_of_type(TIter it, const TIter& end) {
46  for (; it != end; ++it) {
47  if (TSubitem::is_compatible_to(it->type())) {
48  return reinterpret_cast<TSubitem&>(*it);
49  }
50  }
51 
52  // If no subitem of the TSubitem type was found,
53  // return a default constructed one.
54  static TSubitem subitem;
55  return subitem;
56  }
57 
58  } // namespace detail
59 
65 
66  public:
67 
68  constexpr static bool is_compatible_to(osmium::item_type t) noexcept {
69  return t == osmium::item_type::node ||
74  }
75 
77  Item(size, type) {
78  }
79 
80  bool type_is_in(osmium::osm_entity_bits::type entity_bits) const {
81  return (osm_entity_bits::from_item_type(type()) & entity_bits) != 0;
82  }
83 
84  }; // class OSMEntity
85 
86 } // namespace osmium
87 
88 #endif // OSMIUM_OSM_ENTITY_HPP
type
Definition: entity_bits.hpp:63
uint32_t item_size_type
Definition: item.hpp:59
bool type_is_in(osmium::osm_entity_bits::type entity_bits) const
Definition: entity.hpp:80
item_type
Definition: item_type.hpp:43
OSMEntity is the abstract base class for the OSMObject and Changeset classes.
Definition: entity.hpp:64
OSMEntity(osmium::memory::item_size_type size, osmium::item_type type)
Definition: entity.hpp:76
type from_item_type(osmium::item_type item_type) noexcept
Definition: entity_bits.hpp:108
Definition: item.hpp:105
Namespace for everything in the Osmium library.
Definition: assembler.hpp:73
Definition: attr.hpp:333
osmium::io::InputIterator< osmium::io::Reader > end(osmium::io::Reader &)
Definition: reader_iterator.hpp:45
static constexpr bool is_compatible_to(osmium::item_type t) noexcept
Definition: entity.hpp:68
Item(item_size_type size=0, item_type type=item_type()) noexcept
Definition: item.hpp:128
item_type type() const noexcept
Definition: item.hpp:169