operator==,!=(std::bitset)

 

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)

 

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)

Swap, forward and move

swap

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::all bitset::any bitset::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)

 

bool operator==( const bitset<N>& rhs );	(1)
bool operator!=( const bitset<N>& rhs );	(2)

1) Returns true if all of the bits in *this and rhs are equal.

2) Returns true if any of the bits in *this and rhs are not equal.

Parameters

rhs

-

bitset to compare

Return value

1) true if the value of each bit in *this equals the value of the corresponding bit in rhs, otherwise false

2) true if , otherwise false

Example

Compare two bitsets to determine if they are identical:

run this code

#include <iostream>
#include <bitset>
 
int main()
{
    std::bitset<4> b1(3); // [0,0,1,1]
    std::bitset<4> b2(b1);
    std::bitset<4> b3(4); // [0,1,0,0]
 
    std::cout << "b1 == b2: " << (b1 == b2) << '\n';
    std::cout << "b1 == b3: " << (b1 == b3) << '\n';
    std::cout << "b1 != b3: " << (b1 != b3) << '\n';
}

Output:

b1 == b2: 1
b1 == b3: 0
b1 != b3: 1