Re: [boost] [Iterator][MultiIndex]iterator-specificpartition_point-relatedfunctions

Subject: Re: [boost] [Iterator][MultiIndex]iterator-specificpartition_point-relatedfunctions
From: Arno Schödl (aschoedl_at_[hidden])
Date: 2008-12-25 09:47:08

>>> Inviting users to overload in your namespace is simply not a viable
>>> customization approach in general, so ADL is it.
>>
>> O.k., agreed.
>>
>> Why do you think ADL is o.k. for customizing boost::partition_point (soon
>> std::partition_point, N2666), but not for customizing std::lower_bound? AFAIK, the
>> same arguments apply to both.
>
>Because nobody wants to customize lower_bound, upper_bound, equal_range,
>and binary_search when they could instead customize partition point
>alone.

I thought about what you are really after. You are probably envisioning future standardization, where partition_point is a fundamental operation similar to swap, and lower_bound/... implementations must invoke ADL for partition_point, just like C++0x requires it for swap. As a start, we are now adding such a lower_bound/... into boost. Is that your thinking?

Arno

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