On 2009-06-14, at 9:10 AM, dennisf486 wrote:
> If I did this then the Io code wouldn't run out of a callback;
> instead it would look like this:
>
> cursor := Cursor clone
> while (cursor hasBoxes,
> DisplayOpenGLCube(cursor next_box)
> )
>
> Now it's just an Io routine calling a C routine (next_box) over and
> over. The C routine should be fairly fast, but I will have to do a
> lot of work to make it maintain its place in the datastructure on a
> custom stack object, instead of implicitly remembering where it was
> using recursive functions as it does now.
>
> So my question is, is the second version likely to perform better
> than the first version, and is it worth doing?
If the number of iterations is high, then you'd probably want to put
the cursor enumeration bit in C - something like:
cursor := Cursor clone
cursor display // display is a C function which will handle the loop
in C
