std::vector<bool,Allocator>::swap

 

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std::swap

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operator==operator!=operator<operator>operator<=operator>=operator<=> (until C++20)(until C++20)(until C++20)(until C++20)(until C++20)(C++20)

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Defined in header <vector>
static void swap(reference x, reference y);		(until C++20)
constexpr static void swap(reference x, reference y);		(since C++20)

Swaps the contents of x and y.

Parameters

x	-	std::vector<bool>::reference value to swap with y
y	-	std::vector<bool>::reference value to swap with x

Return value

(none)

Complexity

Constant.

Example

Run this code

#include <vector>
#include <iostream>
 
int main()
{
    std::vector<bool> vb1{ 1,0 };
 
    for (auto e : vb1) { std::cout << e << " "; }
    std::cout << '\n';
 
    vb1.swap(vb1[0], vb1[1]);
 
    for (auto e : vb1) { std::cout << e << " "; }
}

Output:

1 0 
0 1

See also

reference	proxy class representing a reference to a single bool (class)
swap	swaps the contents (public member function of std::vector<T,Allocator>)
std::swap(std::vector)	specializes the std::swap algorithm (function template)