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std::experimental::any::operator=(3) | C++ Standard Libary | std::experimental::any::operator=(3) |
NAME¶
std::experimental::any::operator= - std::experimental::any::operator=
Synopsis¶
any& operator=( const any& rhs ); (1) (library
fundamentals TS)
any& operator=( any&& rhs ) noexcept; (2) (library
fundamentals TS)
template< typename ValueType > (3) (library fundamentals TS)
any& operator=( ValueType&& rhs );
Assigns contents to the contained value.
1) Assigns by copying the state of rhs, as if by any(rhs).swap(*this).
2) Assigns by moving the state of rhs, as if by
any(std::move(rhs)).swap(*this). rhs
is left in a valid but unspecified state after the assignment.
3) Assigns the type and value of rhs, as if by
any(std::forward<ValueType>(rhs)).swap(*this). If
std::is_copy_constructible<std::decay_t<ValueType>>::value is
false, the program is
ill-formed. This overload participates in overload resolution only if
std::decay_t<ValueType> is not the same type as any.
Template parameters¶
ValueType - contained value type
Type requirements¶
-
std::decay_t<ValueType> must meet the requirements of
CopyConstructible.
Parameters¶
rhs - object whose contained value to assign
Return value¶
*this
Exceptions¶
1,3) Throws bad_alloc or any exception thrown by the constructor
of the contained
type. If an exception is thrown, there are no effects (strong exception
guarantee).
See also¶
constructor constructs an any object
(public member function)
Category:¶
* Noindexed pages
2024.06.10 | http://cppreference.com |