Libosmium  2.14.2
Fast and flexible C++ library for working with OpenStreetMap data
entity_bits.hpp
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1 #ifndef OSMIUM_OSM_ENTITY_BITS_HPP
2 #define OSMIUM_OSM_ENTITY_BITS_HPP
3 
4 /*
5 
6 This file is part of Osmium (https://osmcode.org/libosmium).
7 
8 Copyright 2013-2018 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/item_type.hpp>
37 
38 #include <cassert>
39 #include <type_traits>
40 
41 namespace osmium {
42 
46  namespace osm_entity_bits {
47 
63  enum type : unsigned char { // this should have been an enum class
64  // but now we can't change it any more
65  // without breaking lots of code
66 
67  nothing = 0x00,
68  node = 0x01,
69  way = 0x02,
70  relation = 0x04,
71  nwr = 0x07,
72  area = 0x08,
73  nwra = 0x0f,
74  object = 0x0f,
75  changeset = 0x10,
76  all = 0x1f
77 
78  }; // enum type
79 
80  inline constexpr type operator|(const type lhs, const type rhs) noexcept {
81  return static_cast<type>(static_cast<unsigned char>(lhs) | static_cast<unsigned char>(rhs));
82  }
83 
84  inline constexpr type operator&(const type lhs, const type rhs) noexcept {
85  return static_cast<type>(static_cast<unsigned char>(lhs) & static_cast<unsigned char>(rhs));
86  }
87 
88  inline constexpr type operator~(const type value) noexcept {
89  return all & static_cast<type>(~static_cast<unsigned char>(value));
90  }
91 
92  inline type& operator|=(type& lhs, const type rhs) noexcept {
93  lhs = lhs | rhs;
94  return lhs;
95  }
96 
97  inline type operator&=(type& lhs, const type rhs) noexcept {
98  lhs = lhs & rhs;
99  return lhs;
100  }
101 
109  const auto ut = static_cast<std::underlying_type<osmium::item_type>::type>(item_type);
110  assert(ut <= 0x05);
111  if (ut == 0) {
112  return nothing;
113  }
114  return static_cast<osmium::osm_entity_bits::type>(1u << (ut - 1u));
115  }
116 
117  } // namespace osm_entity_bits
118 
119 } // namespace osmium
120 
121 #endif // OSMIUM_OSM_ENTITY_BITS_HPP
type
Definition: entity_bits.hpp:63
item_type
Definition: item_type.hpp:43
Definition: entity_bits.hpp:72
Definition: entity_bits.hpp:75
constexpr type operator|(const type lhs, const type rhs) noexcept
Definition: entity_bits.hpp:80
object or changeset
Definition: entity_bits.hpp:76
type from_item_type(osmium::item_type item_type) noexcept
Definition: entity_bits.hpp:108
Definition: entity_bits.hpp:69
node, way, or relation object
Definition: entity_bits.hpp:71
Namespace for everything in the Osmium library.
Definition: assembler.hpp:53
type operator &=(type &lhs, const type rhs) noexcept
Definition: entity_bits.hpp:97
Definition: entity_bits.hpp:68
constexpr type operator~(const type value) noexcept
Definition: entity_bits.hpp:88
constexpr type operator &(const type lhs, const type rhs) noexcept
Definition: entity_bits.hpp:84
node, way, relation, or area object
Definition: entity_bits.hpp:73
Definition: entity_bits.hpp:67
type & operator|=(type &lhs, const type rhs) noexcept
Definition: entity_bits.hpp:92
Definition: entity_bits.hpp:70