29 lines
649 B
C++
29 lines
649 B
C++
#pragma once
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#include <bit>
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#include <base/Types.hpp>
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namespace lightningbolt {
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namespace detail {
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template <class T, class U>
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constexpr T PunCast(U v) {
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return *std::bit_cast<const T*>(&v);
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}
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template <class T>
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constexpr T ByteSwap(T v) {
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if constexpr(sizeof(T) == 2)
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return static_cast<T>(__builtin_bswap16(PunCast<u16>(v)));
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else if constexpr(sizeof(T) == 4)
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return static_cast<T>(__builtin_bswap32(PunCast<u32>(v)));
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else if constexpr(sizeof(T) == 8)
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return static_cast<T>(__builtin_bswap64(PunCast<u64>(v)));
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return v;
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}
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} // namespace detail
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using detail::ByteSwap;
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} // namespace lightningbolt
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