// ISO/IEC 14882:2023 (C++23) - standard headers
/*
<iostream> <algorithm> <format> <initializer_list>
<any> <numeric> <numbers> <stdfloat>
<array> <fstream> <utility> <stop_token>
<atomic> <functional> <optional> <streambuf>
<barrier> <future> <ostream> <string>
<bit> <generator> <print> <string_view>
<bitset> <new> <queue> <strstream>
<charconv> <iomanip> <random> <syncstream>
<chrono> <ios> <ranges> <system_error>
<codecvt> <iosfwd> <ratio> <thread>
<compare> <stdexcept> <regex> <tuple>
<complex> <istream> <valarray> <type_traits>
<concepts> <iterator> <semaphore> <typeindex>
<version> <latch> <set> <typeinfo>
<coroutine> <limits> <shared_mutex> <unordered_map>
<deque> <list> <source_location> <unordered_set>
<exception> <locale> <span> <scoped_allocator>
<execution> <map> <spanstream> <forward_list>
<expected> <mdspan> <sstream> <variant>
<filesystem> <memory> <vector> <memory_resource>
<flat_map> <stack> <stacktrace> <condition_variable>
<flat_set> <mutex>
*/
// + C11 - standard headers
/*
<cassert> <cfenv> <climits> <csetjmp> <cstddef> <cstdlib>
<cctype> <cfloat> <clocale> <csignal> <cstdint> <cstring>
<cerrno> <cinttypes> <cmath> <cstdarg> <cstdio> <ctime>
<cuchar> <cwchar> <cwctype>
*/
