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std::bitset::flip

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.

Parameters

pos

the position of the bit to flip

Return value

*this.

Exceptions

(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.

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:

set	sets bits to `true` or given value (public member function)
reset	sets bits to `false` (public member function)
operator&=operator\|=operator^=operator~	performs binary AND, OR, XOR and NOT (public member function)

std::bitset::flip

Parameters

Return value

Exceptions

Example

See also