Utility functions to construct and compare a std::array of std::byte objects. More...

#include <array>
#include <cstddef>
#include <utility>

Include dependency graph for byte_array.hpp:

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Functions
template<typename... Ts>
constexpr std::array< std::byte, sizeof...(Ts)>	chops::make_byte_array (Ts &&... args) noexcept

template<typename std::size_t N>
constexpr bool	chops::compare_byte_arrays (const std::array< std::byte, N > &lhs, const std::array< std::byte, N > &rhs)

Detailed Description

Utility functions to construct and compare a std::array of std::byte objects.

A std::byte is defined as an enum and there are no implicit conversions from int to an enum class. Instead of writing:

std::array<std::byte, 5> arr =

{ std::byte{0x36}, std::byte{0xd0}, std::byte{0x42}, std::byte{0xbe}, std::byte{0xef} };

it is easier (specially for larger arrays) to write:

auto arr = chops::make_byte_array(0x36, 0xd0, 0x42, 0xbe, 0xef);

The make_byte_array function is taken from an example by Blitz Rakete on Stackoverflow (Blitz is user Rakete1111 on SO). The static_cast was added to eliminate "narrowing" warnings (since typically integer values are used to initialize the std::byte values, which would be a narrowing conversion).

The compare_byte_arrays function simplifies test code, typically using the Catch2 unit test library.

Authors: Blitz Rakete, Cliff Green

Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

Functions

Detailed Description