Lavesson

namespace Pattern {
	template <typename... TArgs> class Observable;

	template <typename... TArgs> class Observer {
		virtual void notify(TArgs... args) = 0;
		friend class Observable<TArgs...>;

	public:
		virtual ~Observer() {}
	};

Lavesson

#include <memory>

int main()
{
    // Create the device, buffer and a mesh
    auto device = std::unique_ptr<Device>(new Device());
    auto buffer = device->CreateVertexBuffer();
    auto mesh   = std::unique_ptr<Mesh>(new Mesh(buffer.get()));
    
    // ... Doing a bunch of stuff

Lavesson

int main()
{
    // Create the device, buffer and a mesh
    auto device = new Device();
    auto buffer = device->CreateVertexBuffer();
    auto mesh   = new Mesh(buffer);
    
    // ... Doing a bunch of stuff
    
    // Cleanup

Lavesson

int main()
{
    // Create the device, buffer and a mesh
    auto device = new Device();
    auto buffer = device->CreateVertexBuffer();
    auto mesh   = new Mesh(buffer);
    
    // ... Doing a bunch of stuff
    
    // Cleanup

Lavesson

Device device = new Device();
VertexBuffer* buffer = device->CreateVertexBuffer();
Mesh* mesh = new Mesh(buffer);
// ...

Lavesson

class Device
{
public:
    Device();
    ~Device();
    VertexBuffer* CreateVertexBuffer(const VertexDescription& desc);
    // ...
};

Lavesson

class Mesh
{
public:
    Mesh(const VertexBuffer* const buffer);
    ~Mesh();
};

Lavesson

#include <memory>

class Device
{
public:
    Device();
    ~Device();
    std::unique_ptr<VertexBuffer> CreateVertexBuffer(const VertexDescription& desc);
};