std::experimental::propagate_const<T>::propagate_const (3) - Linux Manuals

std::experimental::propagate_const<T>::propagate_const: std::experimental::propagate_const<T>::propagate_const

NAME

std::experimental::propagate_const<T>::propagate_const - std::experimental::propagate_const<T>::propagate_const

Synopsis

constexpr propagate_const() = default; (1) (library fundamentals TS v2)
constexpr propagate_const( propagate_const&& p ) = default; (2) (library fundamentals TS v2)
template<class U> (3) (library fundamentals TS v2)
/* see below */ constexpr propagate_const( propagate_const<U>&& pu );
template<class U> (4) (library fundamentals TS v2)
/* see below */ constexpr propagate_const( U&& u );
propagate_const( const propagate_const& ) = delete; (5) (library fundamentals TS v2)

Let t_ designate the private data member that is the wrapped pointer-like object.
1) Constructs an propagate_const, default-initializing this->t_.
2) Explicitly defaulted move constructor that move constructs this->t_ from p.t_.
3) Initializes this->t_ as if by direct-non-list-initialization from the expression std::move(pu.t_)
This constructor does not participate in overload resolution unless std::is_constructible<T, U&&>::value is true, and is explicit if and only if std::is_convertible<U&&, T>::value is false.
4) Initializes this->t_ as if by direct-non-list-initialization with the expression std::forward<U>(u).
This constructor does not participate in overload resolution unless std::is_constructible<T, U&&>::value is true and std::decay_t<U> is not a specialization of propagate_const. This constructor is explicit if and only if std::is_convertible<U&&, T>::value is false.
5) Copy constructor is explicitly deleted.

Parameters

p - another propagate_const object to move from
pu - another propagate_const object of a different specialization to move from
u - another object to initialize the contained pointer with