algorithm any array atomic backward/ barrier bit bits/ bitset cassert ccomplex cctype cerrno cfenv cfloat charconv chrono cinttypes ciso646 climits clocale cmath codecvt compare complex complex.h concepts condition_variable coroutine csetjmp csignal cstdalign cstdarg cstdbool cstddef cstdint cstdio cstdlib cstring ctgmath ctime cuchar cwchar cwctype cxxabi.h debug/ decimal/ deque exception execution expected experimental/ ext/ fenv.h filesystem format forward_list fstream functional future initializer_list iomanip ios iosfwd iostream istream iterator latch limits list locale map math.h memory memory_resource mutex new numbers numeric optional ostream parallel/ pstl/ queue random ranges ratio regex scoped_allocator semaphore set shared_mutex source_location span spanstream sstream stack stacktrace stdatomic.h stdexcept stdfloat stdlib.h stop_token streambuf string string_view syncstream system_error tgmath.h thread tr1/ tr2/ tuple type_traits typeindex typeinfo unordered_map unordered_set utility valarray variant vector version