73 lines
1.2 KiB
C++
73 lines
1.2 KiB
C++
/*
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* peripherals_utility.hpp
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*
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* Created on: Feb 24, 2021
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* Author: erki
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*/
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#ifndef SKULLC_PERIPHERALS_UTILITY_HPP_
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#define SKULLC_PERIPHERALS_UTILITY_HPP_
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#include <cstdint>
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#include <cstring>
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#include <type_traits>
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namespace Peripherals
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{
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#define SKULLC_CONCAT_IMPL(x, y) x##y
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#define SKULLC_CONCAT(x, y) SKULLC_CONCAT_IMPL(x, y)
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#define SKULLC_TAG struct SKULLC_CONCAT(SkullCTag_, __COUNTER__)
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template<typename T>
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constexpr const T& clamp(const T& v, const T& lo, const T& hi)
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{
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if (v > hi)
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return hi;
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else if (v < lo)
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return lo;
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else
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return v;
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}
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template<typename T, std::size_t N>
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T byteToTypeBE(const std::uint8_t a[N])
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{
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T t(0);
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for (std::size_t i = 0; i < N; i++)
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{
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t |= a[i] << (i * 8);
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}
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return t;
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}
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template<typename T, std::size_t N>
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T byteToTypeLE(const std::uint8_t a[N])
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{
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T t(0);
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for (std::size_t i = N; i >= 0; i--)
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{
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t |= a[i] << ((i - 1) * 8);
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}
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return t;
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}
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template<typename T>
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constexpr T zeroInitialized()
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{
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static_assert(std::is_trivially_default_constructible<T>::value, "Struct is not trivially default constructible.");
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T t;
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std::memset(&t, 0, sizeof(T));
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return t;
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}
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}// namespace Peripherals
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#endif /* SKULLC_PERIPHERALS_UTILITY_HPP_ */
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