std::experimental::ranges::tagged<Base,Tags...>::operator=

 

C++

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Concepts library (C++20)

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Technical Specifications

 

Technical specifications

Filesystem library (filesystem TS)

Library fundamentals (library fundamentals TS)

Library fundamentals 2 (library fundamentals 2 TS)

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Extensions for parallelism 2 (parallelism TS v2)

Extensions for concurrency (concurrency TS)

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Ranges (ranges TS)

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Ranges

Concepts

General utilities

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Ranges

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General utilities library

Utility components
swap	exchange
Function objects
invoke identity	equal_to not_equal_to	greater less	greater_equal less_equal
Metaprogramming and type traits
is_swappable_withis_swappable	is_nothrow_swappable_withis_nothrow_swappable	common_reference common_type
Tagged pairs and tuples
TagSpecifier TaggedType	tagged tag specifiers	tagged_pair make_tagged_pair	tagged_tuple make_tagged_tuple

 

std::experimental::ranges::tagged

Member functions

tagged::tagged

tagged::operator=

tagged::swap

Named accessors

Non-member functions

ranges::swap(ranges::tagged)

Helper classes

tuple_size

tuple_element

 

tagged &operator=(tagged&& that) = default;	(1)
tagged &operator=(const tagged& that) = default;	(2)
template <class Other>     requires Assignable<Base&, Other> constexpr tagged& operator=(ranges::tagged<Other, Tags...>&& that)     noexcept(std::is_nothrow_assignable<Base&, Other>::value);	(3)
template <class Other>     requires Assignable<Base&, const Other&> constexpr tagged& operator=(const ranges::tagged<Other, Tags...>& that);	(4)
template <class U>     requires Assignable<Base&, U> && !Same<std::decay_t<U>, tagged> constexpr tagged& operator=(U&& that) noexcept(std::is_nothrow_assignable<Base&, U>::value);	(5)

Assigns the contents of that to *this.

1-2) tagged has defaulted copy and move assignment operators that invoke the corresponding assignment operator of Base.

3) Converting move assignment from a different tagged specialization with matching tags. Equivalent to static_cast<Base&>(*this) = static_cast<Other&&>(that);.

4) Converting copy assignment from a different tagged specialization with matching tags. Equivalent to static_cast<Base&>(*this) = static_cast<const Other&>(that);.

5) Assigns that to the Base subobject. Equivalent to static_cast<Base&>(*this) = std::forward<U>(that);

Return value

*this.