std::bitset::flip - cppreference.com (original) (raw)

bitset& flip();	(1)	(noexcept since C++11) (constexpr since C++23)
(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.

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

[edit] Parameters

pos	-	the position of the bit to flip

[edit] Return value

*this

[edit] Exceptions

Throws std::out_of_range if pos does not correspond to a valid bit position.

[edit] Example

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

Output:

[edit] Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.