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Subject: Re: [boost] [iterator] reverse_iterator<counting_iterator<T>>
From: Arno Schödl (aschoedl_at_[hidden])
Date: 2010-04-13 16:30:20
> The change suggested by Arno (counting_iterator should return by value
> upon dereferencing unless the T member object is held by reference)
> seems like a good one.
constant_iterator<T>::reference could be defined as T, but operator* could return T const&. I am not sure if this fulfills the Iterator requirements in the standard, but it would avoid a copy when trivially calling it->func(), while still making reverse_iterator work as expected.
Arno
-- Dr. Arno Schoedl · aschoedl_at_[hidden] Technical Director think-cell Software GmbH · Chausseestr. 8/E · 10115 Berlin, Germany http://www.think-cell.com · phone +49 30 666473-10 · toll-free (US) +1 800 891 8091 Directors: Dr. Markus Hannebauer, Dr. Arno Schoedl · Amtsgericht Berlin-Charlottenburg, HRB 85229
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