Luna/libluna/include/luna/Bitset.h

#pragma once
#include <luna/Check.h>

template <typename T> class Bitset
{
  public:
    Bitset() : m_value()
    {
    }

    Bitset(T value) : m_value(value)
    {
    }

    Bitset(const Bitset<T>& other) : m_value(other.m_value)
    {
    }

    Bitset<T>& operator=(T value)
    {
        m_value = value;
        return *this;
    }

    Bitset<T>& operator=(const Bitset<T>& other)
    {
        if (&other == this) return *this;
        m_value = other.m_value;
        return *this;
    }

    T value() const
    {
        return m_value;
    }

    void set(int index, bool b)
    {
        check((usize)index < (sizeof(T) * 8));
        if (b) m_value |= (((T)1) << index);
        else
            m_value &= ~(((T)1) << index);
    }

    bool get(int index)
    {
        check((usize)index < (sizeof(T) * 8));
        return m_value & (((T)1) << index);
    }

    void clear()
    {
        m_value = 0;
    }

  private:
    T m_value;
};