93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
#ifndef OSMIUM_INDEX_MAP_DUMMY_HPP
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#define OSMIUM_INDEX_MAP_DUMMY_HPP
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/*
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This file is part of Osmium (http://osmcode.org/libosmium).
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Copyright 2013-2017 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 <cstddef>
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#include <osmium/index/index.hpp>
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#include <osmium/index/map.hpp>
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namespace osmium {
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namespace index {
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namespace map {
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/**
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* Pseudo map.
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* Use this class if you don't need a map, but you
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* need an object that behaves like one.
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*/
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template <typename TId, typename TValue>
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class Dummy : public osmium::index::map::Map<TId, TValue> {
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public:
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Dummy() = default;
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~Dummy() noexcept final = default;
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void set(const TId, const TValue) final {
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// intentionally left blank
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}
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TValue get(const TId id) const final {
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throw osmium::not_found{id};
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}
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TValue get_noexcept(const TId /*id*/) const noexcept final {
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return osmium::index::empty_value<TValue>();
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}
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size_t size() const final {
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return 0;
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}
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size_t used_memory() const final {
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return 0;
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}
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void clear() final {
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}
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}; // class Dummy
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} // namespace map
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} // namespace index
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} // namespace osmium
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#endif // OSMIUM_INDEX_MAP_DUMMY_HPP
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