std::swap(std::inplace_vector)
From cppreference.com
< cpp | container | inplace vector
Defined in header <inplace_vector> | ||
constexprfriendvoid swap(std::inplace_vector& lhs, std::inplace_vector& rhs )noexcept(/* see below */); | (since C++26) | |
Specializes the std::swap algorithm for std::inplace_vector. Swaps the contents of lhs and rhs. Calls lhs.swap(rhs).
Contents |
[edit]Parameters
| lhs, rhs | - | containers whose contents to swap |
[edit]Return value
(none)
[edit]Complexity
Linear in size of the containers.
Exceptions
noexcept specification:
noexcept(N ==0||
(std::is_nothrow_swappable_v<T>&&std::is_nothrow_move_constructible_v<T>))
(std::is_nothrow_swappable_v<T>&&std::is_nothrow_move_constructible_v<T>))
[edit]Example
Run this code
#include <algorithm>#include <iostream>#include <inplace_vector> int main(){std::inplace_vector<int, 4> alice{1, 2, 3};std::inplace_vector<int, 4> bob{7, 8, 9, 10}; auto print =[](constint& n){std::cout<<' '<< n;}; // Print state before swapstd::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 swapstd::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
[edit]See also
| swaps the contents (public member function) |
