bitset<N>& reset ( );
bitset<N>& reset ( size_t pos );

Reset bits

The version with no parameters resets all the bits in the bitset (sets al bits to 0).
The parameterized version, resets (sets to 0) the bit at position pos.

Parameters

pos

Order position of the bit whose value is modified.
Order positions are counted from the rightmost bit, which is order position 0.
size_t is an unsigned integral type.

Return value

If pos is not a valid bit position, out_of_range is thrown.

Example

// bitset::reset
#include <iostream>
#include <string>
#include <bitset>
using namespace std;

int main ()
{
  bitset<4> mybits (string("1011"));

  cout << mybits.reset(1) << endl;    // 1001
  cout << mybits.reset() << endl;    // 0000

  return 0;
}

See also