void swap( thread &lhs, thread &rhs );

static unsigned hardware_concurrency();

promise(); (1)

void lock();

template< class Lock > void wait( Lock& lock );

template< class Rep, class Period > bool try_lock_for( const

void lock_shared();

shared_timed_mutex(); (1)

Defined in header

void set_exception_at_thread_exit( std::exception_ptr p );