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Difference between revisions of "cpp/container/vector bool/flip"

From cppreference.com
m (fmt)
m (fmt)
 
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Toggles each {{c|bool}} in the vector (replaces with its opposite value).
+
Toggles each {{c|bool}} in the {{rlp|/|vector}} (replaces with its opposite value).
  
 
===Parameters===
 
===Parameters===
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int main()
 
int main()
 
{
 
{
     std::vector<bool> v { 0, 1, 0, 1 };
+
     std::vector<bool> v{0, 1, 0, 1};
 
     print(v);
 
     print(v);
 
     v.flip();
 
     v.flip();
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1010
 
1010
 
}}
 
}}
 +
 
===See also===
 
===See also===
 
{{dsc begin}}
 
{{dsc begin}}

Latest revision as of 00:59, 28 September 2023

 
 
 
 
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).

Contents

[edit] Parameters

(none)

[edit] Return value

(none)

[edit] 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

[edit] See also

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