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35 lines
715 B
C++
35 lines
715 B
C++
//
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// Sizes.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 26/01/2021.
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// Copyright © 2021 Thomas Harte. All rights reserved.
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//
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#pragma once
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#include <limits>
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#include <type_traits>
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/*!
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Maps to the smallest integral type that can contain max_value, from the following options:
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* uint8_t;
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* uint16_t;
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* uint32_t; or
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* uint64_t.
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*/
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template <uint64_t max_value> struct MinIntTypeValue {
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using type =
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std::conditional_t<
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max_value <= std::numeric_limits<uint8_t>::max(), uint8_t,
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std::conditional_t<
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max_value <= std::numeric_limits<uint16_t>::max(), uint16_t,
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std::conditional_t<
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max_value <= std::numeric_limits<uint32_t>::max(), uint32_t,
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uint64_t
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>
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>
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>;
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};
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