Isosurface extraction Problem

Hello everyone,

I have been involved with the isosurface function for a while now and I am trying to figure out how it works. I found the code for isosurf function(which is the function that "isosurface" uses for isosurface extraction), i will add the code below.

Now my question is, is there anyway to know how many triangles did it find in the entire data?(according to what i know it should be using some algorith CLOSE to Marching Cubes)

thank you very much, this is the code:

http://fileape.com/dl/RqquYoOdEYH1Nfjx