Loop iterator - example.txt

[kris]

Derek Parnell wrote:
> On Sun, 30 Apr 2006 06:02:10 +1000, Bruno Medeiros  
> <brunodomedeirosATgmail at SPAM.com> wrote:
> 
> 
>> In fact, the very idea seems like a very awkward idiom to me. I would  
>> like to examine a real example, can someone post one?
> 
> 
> We use it in the area of retrying a database transaction after some 
> sort  of exception condition has happened. It has nothing directly to do 
> with  loop index maintenance.
> 
> In pseudo-code ...
> 
>    foreach (inout Customer cust; CustomerSet )
>    {
>        try {
>        cust.name = UI.CustName;
>        cust.address = UI.Address;
>        . . .
>        }
>        catch (BadUI e)
>        {
>            // Recover from the (rare) UI data error
>            . . .
>            retry; // Reprocess the same customer record.
>        }
>    }
> 

Does that retry that instance, or retry the entire loop? Couldn't the 
semantics be either, given the appropriate condition?