mirror of
https://github.com/matrix-construct/construct
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30 lines
909 B
C++
30 lines
909 B
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 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. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_DB_POS_H
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namespace ircd::db
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{
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enum class pos :int8_t;
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string_view reflect(const pos &);
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}
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/// Types of iterator operations
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enum class ircd::db::pos
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:int8_t
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{
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FRONT = -2, // .front() | first element
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PREV = -1, // std::prev() | previous element
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END = 0, // break; | exit iteration (or past the end)
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NEXT = 1, // continue; | next element
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BACK = 2, // .back() | last element
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};
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