* Jürg Billeter wrote, On 17/12/08 13:51:
On Wed, 2008-12-17 at 13:39 +0000, Sam Liddicott wrote:
* Jürg Billeter wrote, On 17/12/08 13:04:
foreach is meant to be used for read-only iteration over a collection as
this is very common. It's really just a bit syntactic sugar. If you need
more features, use a while loop with an appropriate iterator.
I read that as applying to arrays, and not to anything implementing the
iterable interface, my mistake
Thinking back to my dylan days (anyone ever use dylan?) it was common
to have modifiable iterators.
I'm suggesting that foreach could also be used on objects that support
an iterable interface, so that a function could return an iterator
that is used by foreach and destroyed after the for-each.
Thus the syntactic sugar could remain but also support modifying the
collection if the collection could produce a safe iterator.
I don't quite understand, foreach works on objects that implement the
iterable interface. What exactly are you proposing?
Precisely that....
I also mis-read Phil's response and also the original question from
Кутейников Дмитрий.
And I've not been well lately....
:-)
Sam
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