Re: Local vs global variables in ADA

[Stephen Leake <stephen.a.leake.1@gsfc.nasa.gov>]

Fraser Wilson <newsfraser@blancolioni.org> writes:

> ...  Isn't there a preference hierarchy from for loop to while
> loop to loop?  I.e. use a for loop whenever possible, failing that a
> while loop, and as a last resort a loop with an exit.  OK, and as a
> last last resort use a goto.

In my style guide, I use a for loop _only_ if the loop will _always_
be executed exactly as indicated in the "for" part. No other loop
exits allowed.

Otherwise, I use an "exit when" loop.

Never use a "while" loop. Mostly because "exit when" is much clearer,
partly because I've used other languages that had slightly different
definitions of "while", and I can't keep them straight.

-- 
-- Stephe