Opened 14 years ago
Last modified 8 years ago
#2640 new Bugs
counting_iterator::reference lifetime tied to iterator — at Initial Version
| Reported by: | schoedl | Owned by: | Dave Abrahams |
|---|---|---|---|
| Milestone: | Boost 1.38.0 | Component: | iterator |
| Version: | Boost 1.37.0 | Severity: | Problem |
| Keywords: | counting_iterator reverse_iterator | Cc: | flast@… |
Description
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()); }
The problem is that iterator::reference is expected to stay valid even if the iterator it was obtained from is dead.
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