Re: [boost] [multi_index] use cases for iterator_to()

From: Paul Rose (prose_at_[hidden])
Date: 2007-06-08 17:14:19

>> I guess I'l finally include it, but it'd be so much nicer if we could
find
>> a conclusive use case. I've also thought about legacy interfaces
>> requiring raw pointers, if only we could come up with a simple
>> specific scenario on that line.

Hi,

Occasionally I want this feature, but admittedly for a fairly weak
reason:

Checking for NULL:

        if(p) ...

is more convenient than checking for end:

        if(i == c.end()) ...

If most of the time I need only to check for NULL or dereference then a
pointer is more convenient.  When I occasionally need to erase() then I
can use iterator_to...

Paul Rose