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std::bitset::flip

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< cpp‎ | utility‎ | bitset
Revision as of 17:07, 25 January 2014 by Xan (Talk | contribs)

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bitset<N>& flip();
(1)
bitset<N>& flip( size_t pos );
(2)

Flips bits, i.e. changes true values to false and false values to true. Equivalent to a logical NOT operation on part or all of the bitset.

1) Flips all bits (equivalent to operator~)
2) Flips the bit at the position pos.

Contents

[edit] Parameters

pos - the position of the bit to flip

[edit] Return value

*this

[edit] Exceptions

1)
(none) (until C++11)
noexcept specification:  
noexcept
  
(since C++11)
2) throws std::out_of_range if pos does not correspond to a valid position within the bitset.

[edit] Example

#include <iostream>
#include <bitset>
 
int main()
{
    std::bitset<4> b;
 
    std::cout << b << "\n";
    std::cout << b.flip(0) << '\n';
    std::cout << b.flip(2) << '\n';
    std::cout << b.flip() << '\n';
}

Output:

0000
0001
0101
1010

[edit] See also

sets bits to true or given value
(public member function) [edit]
sets bits to false
(public member function) [edit]
performs binary AND, OR, XOR and NOT
(public member function) [edit]