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std::swap(std::flat_multiset)(3) C++ Standard Libary std::swap(std::flat_multiset)(3)

NAME

std::swap(std::flat_multiset) - std::swap(std::flat_multiset)

Synopsis


Defined in header <flat_set>
friend void swap( std::flat_multiset& lhs, std::flat_multiset& rhs ) (since C++23)
noexcept;


Specializes the std::swap algorithm for std::flat_multiset. Swaps the contents of
lhs and rhs. Calls lhs.swap(rhs).

Parameters


lhs, rhs - containers whose contents to swap

Return value


(none)

Complexity


Same as swapping the underlying container.

Example

// Run this code


#include <algorithm>
#include <iostream>
#include <flat_set>


int main()
{
std::flat_multiset<int> alice{1, 2, 3};
std::flat_multiset<int> bob{7, 8, 9, 10};


auto print = [](const int& n) { std::cout << ' ' << n; };


// Print state before swap
std::cout << "Alice:";
std::for_each(alice.begin(), alice.end(), print);
std::cout << "\n" "Bob :";
std::for_each(bob.begin(), bob.end(), print);
std::cout << '\n';


std::cout << "-- SWAP\n";
std::swap(alice, bob);


// Print state after swap
std::cout << "Alice:";
std::for_each(alice.begin(), alice.end(), print);
std::cout << "\n" "Bob :";
std::for_each(bob.begin(), bob.end(), print);
std::cout << '\n';
}

Output:


Alice: 1 2 3
Bob : 7 8 9 10
-- SWAP
Alice: 7 8 9 10
Bob : 1 2 3

See also


swap swaps the contents
(public member function)

2024.06.10 http://cppreference.com