std::bitset<N>::operator<<,<<=,>>,>>= (3) - Linux Manuals

std::bitset<N>::operator<<,<<=,>>,>>=: std::bitset<N>::operator<<,<<=,>>,>>=

NAME

std::bitset<N>::operator<<,<<=,>>,>>= - std::bitset<N>::operator<<,<<=,>>,>>=

Synopsis

bitset<N> operator<<( std::size_t pos ) const; (1)
bitset<N>& operator<<=( std::size_t pos ); (2)
bitset<N> operator>>( std::size_t pos ) const; (3)
bitset<N>& operator>>=( std::size_t pos ); (4)

Performs binary shift left and binary shift right. Zeroes are shifted in.
1-2) Performs binary shift left. The (2) version is destructive, i.e. performs the shift to the current object.
3-4) Performs binary shift right. The (4) version is destructive, i.e. performs the shift to the current object.

Parameters

pos - number of positions to shift the bits

Return value

1,3) new bitset object containing the shifted bits
2,4) *this

Exceptions

(none) (until C++11)
noexcept specification: (since C++11)
noexcept

Example

// Run this code

  #include <iostream>
  #include <bitset>

  int main()
  {
      std::bitset<8> b("01110010");
      std::cout << "initial value: " << b << '\n';

      while (b.any()) {
          while (!b.test(0)) {
              b >>= 1;
          }
          std::cout << b << '\n';
          b >>= 1;
      }
  }

Output:

  initial value: 01110010
  00111001
  00000111
  00000011
  00000001