std::experimental::swap(std::experimental::optional)

From cppreference.com
 
 
Experimental
Technical Specification
Filesystem library (filesystem TS)
Library fundamentals (library fundamentals TS)
Library fundamentals 2 (library fundamentals TS v2)
Library fundamentals 3 (library fundamentals TS v3)
Extensions for parallelism (parallelism TS)
Extensions for parallelism 2 (parallelism TS v2)
Extensions for concurrency (concurrency TS)
Extensions for concurrency 2 (concurrency TS v2)
Concepts (concepts TS)
Ranges (ranges TS)
Reflection (reflection TS)
Mathematical special functions (special functions TR)
Experimental Non-TS
Pattern Matching
Linear Algebra
std::execution
Contracts
2D Graphics
 
 
 
Defined in header <experimental/optional>
template< class T >
void swap( optional<T>& lhs, optional<T>& rhs ) noexcept(/* see below */);
(library fundamentals TS)

Overloads the std::swap algorithm for std::experimental::optional. Exchanges the state of lhs with that of rhs. Effectively calls lhs.swap(rhs).

Parameters

lhs, rhs - optional objects whose states to swap

Return value

(none)

Exceptions

noexcept specification:  
noexcept(noexcept(lhs.swap(rhs)))

Example

See also

exchanges the contents
(public member function)