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Diffstat (limited to 'chilbert/BoundedBitVec.hpp')
-rw-r--r-- | chilbert/BoundedBitVec.hpp | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/chilbert/BoundedBitVec.hpp b/chilbert/BoundedBitVec.hpp deleted file mode 100644 index fa414ca..0000000 --- a/chilbert/BoundedBitVec.hpp +++ /dev/null @@ -1,125 +0,0 @@ -/* - Copyright (C) 2018 David Robillard <d@drobilla.net> - Copyright (C) 2006-2007 Chris Hamilton <chamilton@cs.dal.ca> - - This program is free software: you can redistribute it and/or modify it under - the terms of the GNU General Public License as published by the Free Software - Foundation, either version 2 of the License, or (at your option) any later - version. - - This program is distributed in the hope that it will be useful, but WITHOUT - ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS - FOR A PARTICULAR PURPOSE. See the GNU General Public License for more - details. - - You should have received a copy of the GNU General Public License along with - this program. If not, see <https://www.gnu.org/licenses/>. -*/ - -#ifndef CHILBERT_BOUNDEDBITVEC_HPP -#define CHILBERT_BOUNDEDBITVEC_HPP - -#include "chilbert/detail/BitVecIndex.hpp" -#include "chilbert/detail/BitVecIterator.hpp" -#include "chilbert/detail/BitVecMask.hpp" -#include "chilbert/detail/MultiBitVec.hpp" -#include "chilbert/detail/operations.hpp" - -#include <algorithm> -#include <array> -#include <cassert> -#include <cstddef> -#include <cstdlib> -#include <cstring> - -namespace chilbert { - -/** A statically allocated bit vector with a dynamic size. - * - * This can be used to have bit vectors of an arbitrary dynamic size, under - * some static bound, without using dynamic allocation. - * - * @tparam MaxN Maximum number of bits. - */ -template <size_t MaxN> -class BoundedBitVec : public detail::MultiBitVec<BoundedBitVec<MaxN>> -{ -public: - using Rack = typename detail::MultiBitVec<BoundedBitVec<MaxN>>::Rack; - - using detail::MultiBitVec<BoundedBitVec<MaxN>>::bits_per_rack; - - BoundedBitVec() = default; - - explicit BoundedBitVec(const size_t bits) - : m_size{bits} - { - assert(bits <= MaxN); - } - - BoundedBitVec(const size_t bits, const Rack value) - : BoundedBitVec{bits} - { - m_racks[0] = value; - } - - /// Return the size in bits - size_t size() const { return m_size; } - - /// Return a reference to the `index`th rack -#ifndef NDEBUG - const auto& rack(const size_t index) const { return m_racks.at(index); } - auto& rack(const size_t index) { return m_racks.at(index); } -#else - const auto& rack(const size_t index) const { return m_racks[index]; } - auto& rack(const size_t index) { return m_racks[index]; } -#endif - - /// Return a raw pointer to the racks - Rack* data() { return m_racks.data(); } - const Rack* data() const { return m_racks.data(); } - - /// Return the total size of all racks in bytes - size_t data_size() const { return num_racks() * sizeof(Rack); } - - /// Return the number of racks - size_t num_racks() const { return calculate_num_racks(m_size); } - -private: - static constexpr size_t calculate_num_racks(const size_t bits) - { - return (std::max(bits, size_t(1)) + bits_per_rack - 1) / bits_per_rack; - } - - std::array<Rack, calculate_num_racks(MaxN)> m_racks{}; - size_t m_size; -}; - -namespace detail { - -template <size_t MaxN> -struct is_bitvec<BoundedBitVec<MaxN>> -{ - constexpr static bool value = true; -}; - -template <size_t MaxN> -void -gray_code(BoundedBitVec<MaxN>& value) -{ - gray_code(static_cast<detail::MultiBitVec<BoundedBitVec<MaxN>>&>(value)); -} - -template <size_t MaxN> -void -gray_code_inv(BoundedBitVec<MaxN>& value) -{ - gray_code_inv( - static_cast<detail::MultiBitVec<BoundedBitVec<MaxN>>&>(value)); -} - -} // namespace detail - -} // namespace chilbert - -#endif |