std::__unspecified___exception_ptr - Man Page

exception_ptr (const exception_ptr &) noexcept
exception_ptr (exception_ptr &&__o) noexcept
exception_ptr (nullptr_t) noexcept
const class std::type_info * __cxa_exception_type () const noexcept
operator bool () const noexcept
exception_ptr & operator= (const exception_ptr &) noexcept
exception_ptr & operator= (exception_ptr &&__o) noexcept
void swap (exception_ptr &) noexcept

bool operator== (const exception_ptr &, const exception_ptr &) noexcept=default
exception_ptr std::current_exception () noexcept
template<typename _Ex > exception_ptr std::make_exception_ptr (_Ex) noexcept
void std::rethrow_exception (exception_ptr)

(Note that these are not member symbols.)

void swap (exception_ptr &__lhs, exception_ptr &__rhs)