mirror of
https://github.com/matrix-construct/construct
synced 2024-11-17 23:40:57 +01:00
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/*
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* Copyright (C) 2016 Charybdis Development Team
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* Copyright (C) 2016 Jason Volk <jason@zemos.net>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice is present in all copies.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#pragma once
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#define HAVE_IRCD_DB_INDEX_H
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namespace ircd::db
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{
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struct index;
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}
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struct ircd::db::index
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:column
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{
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struct const_iterator_base;
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struct const_iterator;
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struct const_reverse_iterator;
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using iterator_type = const_iterator;
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using const_iterator_type = const_iterator;
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static const gopts applied_opts;
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const_iterator end(const string_view &key, gopts = {});
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const_iterator begin(const string_view &key, gopts = {});
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const_reverse_iterator rend(const string_view &key, gopts = {});
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const_reverse_iterator rbegin(const string_view &key, gopts = {});
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using column::column;
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};
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struct ircd::db::index::const_iterator_base
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:ircd::db::column::const_iterator_base
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{
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friend class index;
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const value_type &operator*() const;
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const value_type *operator->() const;
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using column::const_iterator_base::const_iterator_base;
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template<class pos> friend bool seek(index::const_iterator_base &, const pos &, gopts = {});
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};
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struct ircd::db::index::const_iterator
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:ircd::db::index::const_iterator_base
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{
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friend class index;
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const_iterator &operator++();
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const_iterator &operator--();
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using index::const_iterator_base::const_iterator_base;
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};
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struct ircd::db::index::const_reverse_iterator
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:ircd::db::index::const_iterator_base
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{
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friend class index;
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const_reverse_iterator &operator++();
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const_reverse_iterator &operator--();
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using index::const_iterator_base::const_iterator_base;
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};
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