std::bitset<N>::set (3) - Linux Manuals

std::bitset<N>::set: std::bitset<N>::set

NAME

std::bitset<N>::set - std::bitset<N>::set

Synopsis

bitset<N>& set(); (until C++11)
bitset<N>& set() noexcept; (1) (since C++11)
bitset<N>& set( std::size_t pos, bool value = true ); (2)

Sets all bits to true or to specified value.
1) Sets all bits to true.
2) Sets the bit at position pos to the value value.

Parameters

pos - the position of the bit to set (least significant to most significant)
value - the value to set the bit to

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 <iostream>
  #include <bitset>

  int main()
  {
      std::bitset<8> b;
      for (size_t i = 1; i < b.size(); i += 2) {
          b.set(i);
      }
      std::cout << b << '\n';
  }

Output:

  10101010