import std.stdio, std.typecons;

struct Vector3f {

    float x, y, z;

    @disable this(this);

}

struct Ray {

    Vector3f* origin;

    Vector3f* dir;

    this(Vector3f* origin, Vector3f* dir) @nogc {

        this.origin = origin;

        this.dir = dir;

    }

}

​

void main(string[] args) @nogc

{

    import std.experimental.allocator : make, dispose;

    import std.experimental.allocator.mallocator : Mallocator;

    alias alloc = Mallocator.instance;

    auto v1 = alloc.make!Vector3f;

    auto v2 = alloc.make!Vector3f;

    Ray(v1, v2);

    alloc.dispose(v1);

    alloc.dispose(v2);

}