C++ Bitset Library - operator== Function

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Description

The C++ function std::bitset::operator== test whether two bitsets are equal or not.

Declaration

Following is the declaration for std::bitset::operator== function form std::bitset header.

C++98

bool operator== (const bitset& other) const;

C++11

bool operator== (const bitset& other) const noexcept;

Parameters

other − Another bitset object.

Return value

Returns true if both bitsets are equal otherwise false.

Exceptions

This member function never throws exception.

Example

The following example shows the usage of std::bitset::operator== function.

#include <iostream>
#include <bitset>

using namespace std;

int main(void) {
   bitset<4> b1("1010");
   bitset<4> b2("1010");

   if (b1 == b2)
      cout << "Both bitsets are equal." << endl;
   b1 >>= 1;

   if (!(b1 == b2))
      cout << "Both bitsets are not equal." << endl;

   return 0;
}

Let us compile and run the above program, this will produce the following result −

Both bitsets are equal.
Both bitsets are not equal.