[boost] [iterator] counting_iterator::reference should be value_type?

Subject: [boost] [iterator] counting_iterator::reference should be value_type?
From: Arno Schödl (aschoedl_at_[hidden])
Date: 2009-01-05 09:25:53

Hello,

currently, counting_iterator<T>::reference is Incrementable const&. This makes reverse_iterator< counting_iterator<T> >::dereference return a reference to a temporary variable:

typename super_t::reference dereference() const { return *boost::prior(this->base()); }

IMO, the solution is to make counting_iterator return by value.

Arno

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