7f19d64164
git-subtree-dir: third_party/immer git-subtree-split: ad3e3556d38bb75966dd24c61a774970a7c7957e
33 lines
790 B
C++
33 lines
790 B
C++
//
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// immer: immutable data structures for C++
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// Copyright (C) 2016, 2017, 2018 Juan Pedro Bolivar Puente
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//
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// This software is distributed under the Boost Software License, Version 1.0.
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// See accompanying file LICENSE or copy at http://boost.org/LICENSE_1_0.txt
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//
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#pragma once
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#include <cstdint>
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namespace immer {
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namespace detail {
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namespace rbts {
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using bits_t = std::uint32_t;
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using shift_t = std::uint32_t;
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using count_t = std::uint32_t;
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using size_t = std::size_t;
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template <bits_t B, typename T = count_t>
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constexpr T branches = T{1} << B;
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template <bits_t B, typename T = size_t>
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constexpr T mask = branches<B, T> - 1;
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template <bits_t B, bits_t BL>
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constexpr shift_t endshift = shift_t{BL} - shift_t{B};
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} // namespace rbts
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} // namespace detail
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} // namespace immer
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