verts

/* In the samples DynamicGeometryGameState.cpp, vertex elements are
defined as follows.
*/
    struct CubeVertices
    {
        float px, py, pz;   //Position
        float nx, ny, nz;   //Normals

        CubeVertices() {}
        CubeVertices(float _px, float _py, float _pz,
        float _nx, float _ny, float _nz ) :
            px( _px ), py( _py ), pz( _pz ),
            nx( _nx ), ny( _ny ), nz( _nz ) { }
    };

    const CubeVertices c_originalVertices[8] =
    {
        CubeVertices( -1, -1,  1, -0.57737, -0.57737,  0.57737 ),
        CubeVertices(  1, -1,  1,  0.57737, -0.57737,  0.57737 ),
        CubeVertices(  1,  1,  1,  0.57737,  0.57737,  0.57737 ),
        CubeVertices( -1,  1,  1, -0.57737,  0.57737,  0.57737 ),
        CubeVertices( -1, -1, -1, -0.57737, -0.57737, -0.57737 ),
        CubeVertices(  1, -1, -1,  0.57737, -0.57737, -0.57737 ),
        CubeVertices(  1,  1, -1,  0.57737,  0.57737, -0.57737 ),
        CubeVertices( -1,  1, -1, -0.57737,  0.57737, -0.57737 )
    };

/* Then the example in the createStaticMesh function is ... */
    // Create the mesh ...
    // create a submesh ...
    // vertex declaration ...

    CubeVertices *cubeVertices =
    reinterpret_cast<CubeVertices*>(OGRE_MALLOC_SIMD(
    sizeof(CubeVertices) * 8, Ogre::MEMCATEGORY_GEOMETRY));

    // fill the data.
    memcpy(cubeVertices, c_originalVertices, sizeof(CubeVertices) * 8 );

    Ogre::VertexBufferPacked *vertexBuffer = nullptr;

    try {
        // Create the actual vertex buffer.
        vertexBuffer = vaoManager->createVertexBuffer(vertexElements,
            8, Ogre::BT_IMMUTABLE, cubeVertices, true);
    } // ...

/*
I think my question is, after the memcpy, how does createVertexBuffer use the CubeVertices members px, py, pz, nx, ny, and nz?

I ask because I'm using something similar to this because it was said that it doesn't matter whether you give a class or a struct ... but I don't understand how it accesses the member fields for the coord and normals data.
*/

    class CubeVertices
    {
        private:
            std::vector<float> coords;
            std::vector<float> normals;

        public:
            CubeVertices() {}
            // ...
    };