51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
#pragma once
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#include "concept.h"
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#include "debug.h"
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#include <version>
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#include <climits>
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#include <concepts>
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namespace dark {
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template <std::size_t _Nm>
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struct Bit {
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private:
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static_assert(0 < _Nm && _Nm <= kMaxLength,
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"Bit: _Nm out of range. Should be in [1, kMaxLength]");
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max_size_t _M_data : _Nm; // Real storage
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template <std::size_t _Hi, std::size_t _Lo>
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static constexpr void _M_range_check();
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public:
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static constexpr std::size_t _Bit_Len = _Nm;
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constexpr Bit(max_size_t data = 0) : _M_data(data) {}
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constexpr explicit operator max_size_t() const { return this->_M_data; }
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template <concepts::bit_type ..._Tp>
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requires ((_Tp::_Bit_Len + ...) == _Nm)
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constexpr Bit(const _Tp &...args);
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template <concepts::bit_convertible <_Nm> _Tp>
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constexpr Bit &operator=(const _Tp &val);
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template <std::size_t _Hi, std::size_t _Lo = _Hi, concepts::bit_convertible <_Nm> _Tp>
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constexpr void set(const _Tp &val);
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template <std::size_t _Hi, std::size_t _Lo = _Hi>
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constexpr auto range() const -> Bit <_Hi - _Lo + 1>;
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template <std::size_t _Len = 1>
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constexpr auto slice(std::size_t pos) const -> Bit <_Len>;
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constexpr Bit <1> operator [](std::size_t pos) const { return this->slice(pos); }
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};
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template <concepts::bit_type ..._Tp>
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Bit(_Tp...) -> Bit<(_Tp::_Bit_Len + ...)>;
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} // namespace dark
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