std::swap(std::hive)
From cppreference.com
| Defined in header <hive>
|
||
void swap( std::hive& lhs, std::hive& rhs ) noexcept(/* see below */);
|
(since C++26) | |
Specializes the std::swap algorithm for std::hive. Swaps the contents of lhs and rhs. Calls lhs.swap(rhs).
Parameters
| lhs, rhs | - | containers whose contents to swap |
Complexity
Constant.
Exceptions
noexcept specification:
noexcept(noexcept(lhs.swap(rhs)))
Example
Run this code
#include <algorithm>
#include <iostream>
#include <hive>
int main()
{
std::hive<int> alice{1, 2, 3};
std::hive<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 << "\nBobby:";
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 << "\nBobby:";
std::for_each(bob.begin(), bob.end(), print);
std::cout << '\n';
}
Output:
Alice: 1 2 3
Bobby: 7 8 9 10
-- SWAP
Alice: 7 8 9 10
Bobby: 1 2 3
See also
| swaps the contents (public member function) |