adjusting HSL to image

CHslFilter::CHslFilter(float hue, float saturation, float lightness)
:m_r(0), m_g(0), m_b(0)
{
    if (saturation == 0)
    {
        m_r = m_g = m_b = lightness;
    }
    else
    {
        float temp2 = (lightness < 0.5f) ? lightness * (1.0f + saturation) : lightness + saturation - (lightness*saturation);
        float temp1 = 2.0f * lightness - temp2;
        float Hk = hue / 360;

        float temp3RGB[3] = {Hk + 1/3, Hk, Hk - 1/3};
        for (unsigned int i = 0; i != 3; ++i)
        {
            if (temp3RGB[i] < 0)
            {
                temp3RGB[i] += 1.0f;
            }
            else if (temp3RGB[i] > 1)
            {
                temp3RGB[i] -= 1.0f;
            }
        }

        for (unsigned int i = 0; i != 3; ++i)
        {
            float item = temp3RGB[i];

            if (item < 1/6)
            {
                item = temp1 + ((temp2 - temp1) * 6.0f * item);
            }
            else if (1/6 <= item && item < 1/2)
            {
                item = temp2;
            }
            else if (1/2 <= item && item < 2/3)
            {
                item = temp1 + ((temp2 - temp1) * (2/3 - item) * 6.0f);
            }
            else
            {
                item = temp1;
            }

            temp3RGB[i] = item;
        }

        m_r = temp3RGB[0];  m_r = temp3RGB[1];  m_b = temp3RGB[2];
    }

    m_r *= 255;
    m_g *= 255;
    m_b *= 255;

}

void CHslFilter::AdjustColor(float &r, float &g, float &b)const
{
    r += m_r;
    g += m_g;
    b += m_b;

    return;
}