Re: [q-lang-users] Bug? New 'where' syntax

[John C. <co...@cc...>]

Albert Graef scripsit:

> Someone (John?) came up with the idea of keeping track of a pointer to
> an automatic variable. That might do the trick, but I'm not sure how
> portable that is and how I can determine the available C stack size in
> advance.

Chicken has a small C program run at configuration time that figures
out which way the C stack grows.  Then it's just a matter of preserving
the address of a local variable defined in main() in a global variable,
then adding or subtracting the maximum stack size (defined at config
time also; Chicken defaults to 128K) to it, and then occasionally
comparing the content of that variable with the address of some local
variable.

-- 
In politics, obedience and support      John Cowan <co...@cc...>
are the same thing.  --Hannah Arendt    http://www.ccil.org/~cowan