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From: David Abrahams (dave_at_[hidden])
Date: 2005-03-24 09:13:42

Thomas Witt <witt_at_[hidden]> writes:

>> instead of the irritating
>> void foo()
>> {
>> using namespace boost;
>> begin(r);
>> }
> For the record I don't think it's irritating at all. It very clearly
> states what is going on. I can see it being cumbersome though.

Cumbersomeness is irritating ;-)

> BTW shouldn't it be
> using boost::begin;
> begin(r);

Yes it should.

>> we simply now say
>> void foo()
>> {
>> boost::begin(r);
>> }
>> and get full ADL lookup. This changes the extension protocol
>> to overiding these three functions:
> To me the key difference here is not the way hooks a provided, but that
> currently the user chooses to take advantage of ADL, while with the new
> scheme the library makes the choice for the user. I am unconvinced that
> that's actually better.

The user can always call the hook unqualified. That's _going_ to be a
public part of the library's interface.

Dave Abrahams
Boost Consulting

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