An xcode project version of:

// This example program is created by thecplusplusuy for demonstration purposes. It's a simple 3D model loader (wavefront (.obj)), which is capable to load materials and UV textures:
// http://www.youtube.com/user/thecplusplusguy
// Free source, modify if you want, LGPL licence (I guess), I would be happy, if you would not delete the link
// so other people can see the tutorial
// this file is third.cpp an example, how to use the class

with some cleanup thrown in.

There's memory stomping going on in the quads path.