33 lines
757 B
C++
33 lines
757 B
C++
/*
|
|
* Copyright (C) 2021-present ScyllaDB
|
|
*/
|
|
|
|
/*
|
|
* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <cstring>
|
|
#include <type_traits>
|
|
#include <span>
|
|
|
|
template <class T> concept Trivial = std::is_trivial_v<T>;
|
|
template <class T> concept TriviallyCopyable = std::is_trivially_copyable_v<T>;
|
|
|
|
template <TriviallyCopyable To>
|
|
To read_unaligned(const void* src) {
|
|
To dst;
|
|
std::memcpy(&dst, src, sizeof(To));
|
|
return dst;
|
|
}
|
|
|
|
template <TriviallyCopyable From>
|
|
void write_unaligned(void* dst, const From& src) {
|
|
std::memcpy(dst, &src, sizeof(From));
|
|
}
|
|
|
|
std::span<const std::byte> object_representation(const TriviallyCopyable auto& x) {
|
|
return {reinterpret_cast<const std::byte*>(&x), sizeof(x)};
|
|
}
|