111 lines
4.0 KiB
C++
111 lines
4.0 KiB
C++
#ifndef OSMIUM_OSM_OBJECT_COMPARISONS_HPP
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#define OSMIUM_OSM_OBJECT_COMPARISONS_HPP
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/*
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This file is part of Osmium (http://osmcode.org/libosmium).
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Copyright 2013-2016 Jochen Topf <jochen@topf.org> and others (see README).
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Boost Software License - Version 1.0 - August 17th, 2003
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Permission is hereby granted, free of charge, to any person or organization
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obtaining a copy of the software and accompanying documentation covered by
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this license (the "Software") to use, reproduce, display, distribute,
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execute, and transmit the Software, and to prepare derivative works of the
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Software, and to permit third-parties to whom the Software is furnished to
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do so, all subject to the following:
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The copyright notices in the Software and this entire statement, including
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the above license grant, this restriction and the following disclaimer,
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must be included in all copies of the Software, in whole or in part, and
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all derivative works of the Software, unless such copies or derivative
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works are solely in the form of machine-executable object code generated by
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a source language processor.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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#include <osmium/osm/object.hpp>
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namespace osmium {
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/**
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* Function object class for comparing OSM objects for equality by type, id, and version.
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*/
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struct object_equal_type_id_version {
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bool operator()(const osmium::OSMObject& lhs, const osmium::OSMObject& rhs) const noexcept {
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return lhs == rhs;
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}
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bool operator()(const osmium::OSMObject* lhs, const osmium::OSMObject* rhs) const noexcept {
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return *lhs == *rhs;
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}
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}; // struct object_equal_type_id_version
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/**
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* Function object class for comparing OSM objects for equality by type and id,
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* ignoring the version.
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*/
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struct object_equal_type_id {
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bool operator()(const osmium::OSMObject& lhs, const osmium::OSMObject& rhs) const noexcept {
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return lhs.type() == rhs.type() &&
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lhs.id() == rhs.id();
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}
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bool operator()(const osmium::OSMObject* lhs, const osmium::OSMObject* rhs) const noexcept {
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return operator()(*lhs, *rhs);
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}
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}; // struct object_equal_type_id
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/**
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* Function object class for ordering OSM objects by type, id, and version.
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*/
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struct object_order_type_id_version {
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bool operator()(const osmium::OSMObject& lhs, const osmium::OSMObject& rhs) const noexcept {
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return lhs < rhs;
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}
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bool operator()(const osmium::OSMObject* lhs, const osmium::OSMObject* rhs) const noexcept {
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return *lhs < *rhs;
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}
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}; // struct object_order_type_id_version
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/**
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* Function object class for ordering OSM objects by type, id, and reverse version,
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* ie objects are ordered by type and id, but later versions of an object are
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* ordered before earlier versions of the same object.
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*/
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struct object_order_type_id_reverse_version {
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bool operator()(const osmium::OSMObject& lhs, const osmium::OSMObject& rhs) const noexcept {
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if (lhs.type() != rhs.type()) {
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return lhs.type() < rhs.type();
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}
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return (lhs.id() == rhs.id() && lhs.version() > rhs.version()) ||
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lhs.positive_id() < rhs.positive_id();
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}
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bool operator()(const osmium::OSMObject* lhs, const osmium::OSMObject* rhs) const noexcept {
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return operator()(*lhs, *rhs);
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}
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}; // struct object_order_type_id_reverse_version
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} // namespace osmium
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#endif // OSMIUM_OSM_OBJECT_COMPARISONS_HPP
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