[Question] Using custom std::vector<Point> class

[Sidney Zhang]

In the documentation, there was an example of how to using a custom point class.

Is there an example that show cases a custom polygon class (i.e. std::vector)

My use case is that I have a flat array float* in memory. Which looks like this

float1, float2, float3, float4 ...
x0       y0       x1       y2

It would be great to be able to write a container class that accesses the underlying data rather than copying into a std::vector<Point>

[mrgreywater]

It's possible by writing a wrapper class for your array, which implements the requirements of container.

A simple non-generic wrapper implementation would probably start as something like

class PointArrayView {
private:
    Point* data;
    std::size_t length;
public:
    std::size_t size() const;
    bool empty() const;
    Point& operator[] (const int index);
}

I might write a full example when I have time, even though this is more of a general c++ programming question. You might also look up "array_view" implementations on google which are the same thing but with templates.