A Bitset is a data structure used to implement an array of bits where each bit can be set or cleared individually. In C++, the std::bitset class provides a fixed-size implementation of the Bitset. However, if you need a Bitset with a dynamic size, you can create your own implementation using dynamic memory allocation.

Implementation

Here’s an example of a dynamic-sized C++ Bitset class:

#include <iostream>
#include <vector>

class DynamicBitset {
private:
    std::vector<bool> bits;

public:
    DynamicBitset() {}

    DynamicBitset(int size) {
        bits.resize(size, false);
    }

    void setBit(int index) {
        bits[index] = true;
    }

    void clearBit(int index) {
        bits[index] = false;
    }

    bool getBit(int index) const {
        return bits[index];
    }
};

int main() {
    DynamicBitset bitset(10);
    bitset.setBit(3);
    bitset.setBit(6);
    bitset.setBit(9);

    std::cout << "Bit at index 3: " << bitset.getBit(3) << std::endl;
    std::cout << "Bit at index 6: " << bitset.getBit(6) << std::endl;
    std::cout << "Bit at index 9: " << bitset.getBit(9) << std::endl;

    return 0;
}

In this implementation, we use a std::vector<bool> to store the bits dynamically. The DynamicBitset class provides methods for setting, clearing, and getting the value of a specific bit.

Usage

To use the DynamicBitset class, you can create an instance by specifying the desired size in the constructor. Then, you can set or clear bits using the setBit and clearBit methods. To retrieve the value of a bit, you can use the getBit method.

Conclusion

By implementing a dynamic-sized C++ Bitset class, you can have more flexibility in managing bits. This can be useful in various applications such as data compression, algorithm design, and more.

#cplusplus #dynamicbitset