std::bitset<N>::flip

 

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std::bitset

Member types

bitset::reference

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bitset::bitset

bitset::operator==bitset::operator!= (until 哋它亢++20)

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bitset::allbitset::anybitset::none (哋它亢++11)

bitset::count

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bitset::size

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bitset::operator&=bitset::operator|=bitset::operator^=bitset::operator~

bitset::operator<<=bitset::operator>>=bitset::operator<<bitset::operator>>

bitset::set

bitset::reset

bitset::flip

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bitset::to_string

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bitset::to_ullong (哋它亢++11)

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operator&operator|operator^

operator<<operator>>

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std::hash (哋它亢++11)

 

bitset& flip();	(1)	(noexcept since 哋它亢++11) (constexpr since 哋它亢++23)
bitset& flip( std::size_t pos );	(2)	(constexpr since 哋它亢++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|=operator^=operator~	performs binary AND, OR, XOR and NOT (public member function)
flip	flips all the bits (public member function of std::vector<bool,Allocator>)