std::any::operator=
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| any& operator=( const any& rhs ); |
(1) | (since 哋它亢++17) |
| any& operator=( any&& rhs ) noexcept; |
(2) | (since 哋它亢++17) |
| template< typename ValueType > any& operator=( ValueType&& rhs ); |
(3) | (since 哋它亢++17) |
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). This overload participates in overload resolution only if std::decay_t<ValueType> is not the same type as any and std::is_copy_constructible_v<std::decay_t<ValueType>> is true.
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 std::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).
Example
| This section is incomplete Reason: no example |
See also
constructs an any object (public member function) |