How do I construct and use std::bitset in C++?

In C++, std::bitset is a part of the standard library that is used to represent a fixed-size sequence of bits. It provides an interface for bitwise operations and easy manipulation of bit-level data.

To construct a std::bitset, you need to define the size of the bitset as a template parameter. Optionally, you can initialize it with a string or an unsigned long long integer.

Here’s a simple example of how to construct and use std::bitset:


#include <iostream>
#include <bitset>

int main() {
    // Create a bitset of size 8
    std::bitset<8> bset1; // All bits initialized to 0

    // Set bits at specific positions
    bset1.set(1); // Set 2nd bit
    bset1.set(3); // Set 4th bit

    // Display the bitset
    std::cout << "Bitset 1: " << bset1 << std::endl; // Output: 00001010

    // Create a bitset with initialization
    std::bitset<8> bset2("10110101"); // Initialize with a binary string

    // Display the second bitset
    std::cout << "Bitset 2: " << bset2 << std::endl; // Output: 10110101

    // Perform bitwise operations
    std::bitset<8> bset3 = bset1 & bset2; // AND operation
    std::cout << "Bitset 1 AND Bitset 2: " << bset3 << std::endl; // Output: 00000000

    return 0;
}

How do I construct and use std::bitset in C++?

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How do I construct and use std::bitset in C++?

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