std::swap(std::flat_multiset)
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< cpp | container | flat multiset
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Tables
std::flat_multiset
swap(std::flat_multiset)
Defined in header
<flat_set>
void swap( std::flat_multiset & lhs, std::flat_multiset & rhs ) noexcept;
(since C++23) (constexpr since C++26)
Specializes the std::swap algorithm for std::flat_multiset. Swaps the contents of lhs and rhs. Calls lhs.swap(rhs).
Contents
[edit] Parameters
lhs, rhs
-
containers whose contents to swap
[edit] Complexity
Same as swapping the underlying containers.
[edit] 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 << "\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