mirror of
https://github.com/matrix-construct/construct
synced 2024-06-30 07:48:22 +02:00
31 lines
909 B
C++
31 lines
909 B
C++
// Matrix Construct
|
|
//
|
|
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice is present in all copies. The
|
|
// full license for this software is available in the LICENSE file.
|
|
|
|
#pragma once
|
|
#define HAVE_IRCD_DB_POS_H
|
|
|
|
namespace ircd::db
|
|
{
|
|
enum class pos :int8_t;
|
|
|
|
string_view reflect(const pos &);
|
|
}
|
|
|
|
/// Types of iterator operations
|
|
enum class ircd::db::pos
|
|
:int8_t
|
|
{
|
|
FRONT = -2, // .front() | first element
|
|
PREV = -1, // std::prev() | previous element
|
|
END = 0, // break; | exit iteration (or past the end)
|
|
NEXT = 1, // continue; | next element
|
|
BACK = 2, // .back() | last element
|
|
};
|