NAME¶

std::bitset::flip - std::bitset::flip

Synopsis¶

bitset& flip(); (1) (noexcept since C++11)
(constexpr since C++23)
bitset& flip( std::size_t pos ); (2) (constexpr since C++23)

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 (like operator~, but in-place).
2) Flips the bit at the position pos.

Parameters¶

pos - the position of the bit to flip

Return value¶

*this

Exceptions¶

2) throws std::out_of_range if pos does not correspond to a valid position within
the bitset.

Example¶

// Run this code

#include <bitset>
#include <iostream>

int main()
{
std::bitset<4> flops;

std::cout << flops << '\n'
<< flops.flip(0) << '\n'
<< flops.flip(2) << '\n'
<< flops.flip() << '\n';
}

Output:¶

0000
0001
0101
1010

See also¶

set sets bits to true or given value
(public member function)
reset sets bits to false
(public member function)
operator&=
operator|= performs binary AND, OR, XOR and NOT
operator^= (public member function)
operator~
flip flips all the bits
(public member function of std::vector<bool,Allocator>)