Is this specified ?

[Thomas Baruchel <thomas.baruchel@libertysurf.fr>]

Hi,

I noticed that

  until(a==(a+=b), ...

works (I want to increment a with b and stop when b is 0

BUT

may I consider this as something fully specified (ie. standard,
portable, comprehensible, or whatever you want) or not ?

-- 
'\   (define Thomas_Baruchel
  \    ((lambda (k) (k k))
  /\     (call-with-current-continuation
 /  \      (lambda (k) (k k)))))              thomas.baruchel # libertysurf.fr