17 Language support library [support]
namespace std {
template<>
struct coroutine_handle<noop_coroutine_promise>
{
constexpr operator coroutine_handle<>() const noexcept;
constexpr explicit operator bool() const noexcept;
constexpr bool done() const noexcept;
constexpr void operator()() const noexcept;
constexpr void resume() const noexcept;
constexpr void destroy() const noexcept;
noop_coroutine_promise& promise() const noexcept;
constexpr void* address() const noexcept;
private:
coroutine_handle(unspecified);
void* ptr;
};
}