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

 

C++

Language

Standard library headers

Concepts

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Technical Specifications

 

Utilities library

Type support (basic types, RTTI, type traits)

Dynamic memory management

Error handling

Program utilities

Variadic functions

Date and time

Function objects

initializer_list (C++11)

bitset

hash (C++11)

Relational operators

rel_ops::operator!=rel_ops::operator>rel_ops::operator<=rel_ops::operator>=

Pairs and tuples

pair

tuple (C++11)

piecewise_construct_t (C++11)

piecewise_construct (C++11)

integer_sequence (C++14)

Swap, forward and move

swap

exchange (C++14)

forward (C++11)

move (C++11)

move_if_noexcept (C++11)

declval (C++11)

 

std::bitset

Member types

bitset::reference

Member functions

bitset::bitset

bitset::operator==bitset::operator!=

Element access

bitset::operator[]

bitset::test

bitset::allbitset::anybitset::none (C++11)

bitset::count

Capacity

bitset::size

Modifiers

bitset::operator&=bitset::operator|=bitset::operator^=bitset::operator~

bitset::operator<<=bitset::operator>>=bitset::operator<<bitset::operator>>

bitset::set

bitset::reset

bitset::flip

Conversions

bitset::to_string

bitset::to_ulong

bitset::to_ullong (C++11)

Non-member functions

operator&operator|operator^

operator<<operator>>

Helper classes

std::hash (C++11)

 

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:   noexcept	(since C++11)

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

See also

operator&=operator|=operator^=operator~

performs binary AND, OR, XOR and NOT (public member function)