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

Defined in header <vector>
void flip();
 (until C++20)
constexpr void flip();
 (since C++20)

Toggles each bool in the vector (replaces with its opposite value).

Parameters

(none)

Return value

(none)

Example

#include <iostream>
#include <vector>
 
void print(const std::vector<bool>& vb)
{
    for (const bool b : vb)
        std::cout << b;
    std::cout << '\n';
}
 
int main()
{
    std::vector<bool> v { 0, 1, 0, 1 };
    print(v);
    v.flip();
    print(v);
}

Output:

0101
1010

See also

 access specified element
(public member function of std::vector<T,Allocator>)
toggles the values of bits
(public member function of std::bitset<N>)