delete nie działa

BaseDrawable & BaseDrawable::operator =( const BaseDrawable & BaseDrawable )
{
    delete m_drawable;
   
    m_circle = BaseDrawable.m_circle;
    if( BaseDrawable.m_sprite )
    {
        m_sprite = new sf::Sprite( * BaseDrawable.m_sprite );
        m_drawable = m_sprite;
    }
    else
    {
        if( m_circle )
             m_shape = new sf::CircleShape( *( static_cast < sf::CircleShape *>( BaseDrawable.m_shape ) ) );
        else
             m_shape = new sf::ConvexShape( *( static_cast < sf::ConvexShape *>( BaseDrawable.m_shape ) ) );
       
        if( m_drawable != m_shape && m_drawable != nullptr )
             exit( 1 ); // Tutaj wywala!!!
       
        m_drawable = m_shape;
    }
    return * this;
}

delete m_drawable;
m_drawable = nullptr;

template < typename T > void safeDelete( T *& ptr, bool arr = false ) {
    if( !ptr )
         return;
   
    if( arr )
         delete[] ptr;
    else
         delete ptr;
   
    ptr = nullptr;
}