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| Member types | ||||
| Member functions | ||||
(until C++20) | ||||
| Element access | ||||
| Capacity | ||||
| Modifiers | ||||
bitset::reset | ||||
| Conversions | ||||
(C++11) | ||||
| Non-member functions | ||||
| Helper classes | ||||
(C++11) | ||||
bitset& reset(); | (1) | (noexcept since C++11) (constexpr since C++23) |
bitset& reset(std::size_t pos); | (2) | (constexpr since C++23) |
Sets bits tofalse.
Contents |
| pos | - | the position of the bit to set |
*this
#include <bitset>#include <iostream> int main(){std::bitset<8> b(42);std::cout<<"Bitset is "<< b<<'\n'; b.reset(1);std::cout<<"After b.reset(1): "<< b<<'\n'; b.reset();std::cout<<"After b.reset(): "<< b<<'\n';}
Output:
Bitset is 00101010After b.reset(1): 00101000After b.reset(): 00000000
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| LWG 2250 | C++98 | the behavior was undefined ifpos does not correspond to a valid bit position | always throws an exception in this case |
| sets bits totrue or given value (public member function)[edit] | |
| toggles the values of bits (public member function)[edit] |
