std::reference_wrapper< _Tp >(3cxx) | std::reference_wrapper< _Tp >(3cxx) |
NAME¶
std::reference_wrapper< _Tp > - Primary class template for reference_wrapper.
SYNOPSIS¶
#include <functional>
Public Types¶
typedef _Tp type
Public Member Functions¶
template<typename _Up , typename = __not_same<_Up>,
typename =
decltype(reference_wrapper::_S_fun(std::declval<_Up>()))> constexpr
reference_wrapper (_Up &&__uref)
noexcept(noexcept(reference_wrapper::_S_fun(std::declval< _Up
>())))
reference_wrapper (const reference_wrapper &)=default
constexpr _Tp & get () const noexcept
constexpr operator _Tp & () const noexcept
template<typename... _Args> constexpr result_of< _Tp
&(_Args &&...)>::type operator() (_Args &&...
__args) const
reference_wrapper & operator= (const
reference_wrapper &)=default
Related Functions¶
(Note that these are not member functions.)
template<typename _Tp > constexpr reference_wrapper< _Tp >
ref (_Tp &__t) noexcept
template<typename _Tp > constexpr reference_wrapper< const _Tp
> cref (const _Tp &__t) noexcept
Denotes a const reference should be taken to a variable. template<typename
_Tp > constexpr reference_wrapper< _Tp > ref
(reference_wrapper< _Tp > __t) noexcept
std::ref overload to prevent wrapping a reference_wrapper template<typename
_Tp > constexpr reference_wrapper< const _Tp > cref
(reference_wrapper< _Tp > __t) noexcept
std::cref overload to prevent wrapping a reference_wrapper
Detailed Description¶
template<typename _Tp>¶
class std::reference_wrapper< _Tp >"Primary class template for reference_wrapper.
Definition at line 303 of file functional.
Member Typedef Documentation¶
template<typename _Tp > typedef _Tp std::reference_wrapper< _Tp >::type¶
Definition at line 322 of file functional.
Constructor & Destructor Documentation¶
template<typename _Tp > template<typename _Up , typename = __not_same<_Up>, typename = decltype(reference_wrapper::_S_fun(std::declval<_Up>()))> constexpr std::reference_wrapper< _Tp >::reference_wrapper (_Up && __uref) [inline], [constexpr], [noexcept]¶
Definition at line 330 of file functional.
Member Function Documentation¶
template<typename _Tp > constexpr _Tp & std::reference_wrapper< _Tp >::get (void) const [inline], [constexpr], [noexcept]¶
Definition at line 346 of file functional.
template<typename _Tp > constexpr std::reference_wrapper< _Tp >::operator _Tp & () const [inline], [constexpr], [noexcept]¶
Definition at line 341 of file functional.
template<typename _Tp > template<typename... _Args> constexpr result_of< _Tp &(_Args &&...)>::type std::reference_wrapper< _Tp >::operator() (_Args &&... __args) const [inline], [constexpr]¶
Definition at line 352 of file functional.
Friends And Related Function Documentation¶
template<typename _Tp > constexpr reference_wrapper< const _Tp > cref (const _Tp & __t) [related]¶
Denotes a const reference should be taken to a variable.
Definition at line 380 of file functional.
template<typename _Tp > constexpr reference_wrapper< const _Tp > cref (reference_wrapper< _Tp > __t) [related]¶
std::cref overload to prevent wrapping a reference_wrapper
Definition at line 400 of file functional.
template<typename _Tp > constexpr reference_wrapper< _Tp > ref (_Tp & __t) [related]¶
Denotes a reference should be taken to a variable.
Definition at line 373 of file functional.
template<typename _Tp > constexpr reference_wrapper< _Tp > ref (reference_wrapper< _Tp > __t) [related]¶
std::ref overload to prevent wrapping a reference_wrapper
Definition at line 393 of file functional.
Author¶
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Sun Jan 8 2023 | libstdc++ |