std::future< _Res >(3cxx) std::future< _Res >(3cxx)
NAME
std::future< _Res > - Primary template for future.
SYNOPSIS
Inherits std::__basic_future< _Res >.
Public Types
template<typename _Res > using _Ptr = unique_ptr< _Res,
_Result_base::_Deleter >
A unique_ptr for result objects.
using _State_base = _State_baseV2
Public Member Functions
future (const future &)=delete
future (future &&__uf) noexcept
Move constructor.
_Res get ()
Retrieving the value.
future & operator= (const future &)=delete
future & operator= (future &&__fut) noexcept
shared_future< _Res > share () noexcept
bool valid () const noexcept
void wait () const
template<typename _Rep , typename _Period > future_status wait_for
(const chrono::duration< _Rep, _Period > &__rel) const
template<typename _Clock , typename _Duration > future_status
wait_until (const chrono::time_point< _Clock, _Duration > &__abs)
const
Static Public Member Functions
template<typename _Res , typename _Allocator > static _Ptr<
_Result_alloc< _Res, _Allocator > > _S_allocate_result (const
_Allocator &__a)
template<typename _Res , typename _Tp > static _Ptr< _Result< _Res > >
_S_allocate_result (const std::allocator< _Tp > &__a)
template<typename _Res_ptr , typename _BoundFn > static _Task_setter<
_Res_ptr, _BoundFn > _S_task_setter (_Res_ptr &__ptr, _BoundFn
&__call)
Protected Types
typedef __future_base::_Result< _Res > & __result_type
Protected Member Functions
__result_type _M_get_result () const
Wait for the state to be ready and rethrow any stored exception.
void _M_swap (__basic_future &__that) noexcept
Friends
template<typename _Fn , typename... _Args> future< __async_result_of<
_Fn, _Args... > > async (launch, _Fn &&, _Args &&...)
template<typename > class packaged_task
class promise< _Res >
Detailed Description
template<typename _Res>
class std::future< _Res >" Primary template for future.
Member Typedef Documentation
template<typename _Res > using std::__future_base::_Ptr = unique_ptr<_Res,
_Result_base::_Deleter> [inherited]
A unique_ptr for result objects.
Constructor & Destructor Documentation
template<typename _Res > std::future< _Res >::future (future< _Res > &&
__uf) [inline], [noexcept]
Move constructor.
Member Function Documentation
template<typename _Res > __result_type std::__basic_future< _Res
>::_M_get_result () const [inline], [protected], [inherited]
Wait for the state to be ready and rethrow any stored exception.
template<typename _Res > _Res std::future< _Res >::get () [inline]
Retrieving the value.
Author
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libstdc++ Thu Dec 18 2025 std::future< _Res >(3cxx)
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