mirror of
https://github.com/matrix-construct/construct
synced 2024-11-15 22:41:12 +01:00
135 lines
3 KiB
C++
135 lines
3 KiB
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_JSON_TUPLE_UNTIL_H
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namespace ircd {
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namespace json {
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template<size_t i,
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class tuple,
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class function>
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constexpr typename std::enable_if<i == size<tuple>(), bool>::type
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until(const tuple &t,
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function&& f)
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noexcept
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{
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return true;
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}
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template<size_t i,
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class tuple,
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class function>
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constexpr typename std::enable_if<i == size<tuple>(), bool>::type
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until(tuple &t,
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function&& f)
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noexcept
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{
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return true;
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}
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template<size_t i = 0,
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class tuple,
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class function>
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inline typename std::enable_if<i < size<tuple>(), bool>::type
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until(const tuple &t,
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function&& f)
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{
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return f(key<i>(t), val<i>(t))?
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until<i + 1>(t, std::forward<function>(f)):
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false;
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}
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template<size_t i = 0,
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class tuple,
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class function>
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inline typename std::enable_if<i < size<tuple>(), bool>::type
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until(tuple &t,
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function&& f)
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{
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return f(key<i>(t), val<i>(t))?
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until<i + 1>(t, std::forward<function>(f)):
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false;
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}
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template<size_t i,
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class tuple,
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class function>
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constexpr typename std::enable_if<i == size<tuple>(), bool>::type
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until(const tuple &a,
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const tuple &b,
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function&& f)
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noexcept
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{
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return true;
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}
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template<size_t i = 0,
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class tuple,
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class function>
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inline typename std::enable_if<i < size<tuple>(), bool>::type
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until(const tuple &a,
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const tuple &b,
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function&& f)
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{
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return f(key<i>(a), val<i>(a), val<i>(b))?
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until<i + 1>(a, b, std::forward<function>(f)):
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false;
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}
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template<class tuple,
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class function,
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ssize_t i>
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constexpr typename std::enable_if<(i < 0), bool>::type
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runtil(const tuple &t,
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function&& f)
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noexcept
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{
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return true;
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}
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template<class tuple,
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class function,
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ssize_t i>
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constexpr typename std::enable_if<(i < 0), bool>::type
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runtil(tuple &t,
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function&& f)
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noexcept
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{
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return true;
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}
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template<class tuple,
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class function,
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ssize_t i = size<tuple>() - 1>
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inline typename std::enable_if<i < size<tuple>(), bool>::type
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runtil(const tuple &t,
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function&& f)
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{
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return f(key<i>(t), val<i>(t))?
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runtil<tuple, function, i - 1>(t, std::forward<function>(f)):
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false;
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}
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template<class tuple,
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class function,
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ssize_t i = size<tuple>() - 1>
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inline typename std::enable_if<i < size<tuple>(), bool>::type
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runtil(tuple &t,
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function&& f)
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{
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return f(key<i>(t), val<i>(t))?
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runtil<tuple, function, i - 1>(t, std::forward<function>(f)):
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false;
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}
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} // namespace json
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} // namespace ircd
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