This is the mail archive of the
libstdc++@gcc.gnu.org
mailing list for the libstdc++ project.
tr1::hashtable iterators
- From: Peter Doerfler <gcc at pdoerfler dot com>
- To: libstdc++ at gcc dot gnu dot org
- Date: Wed, 10 May 2006 15:36:59 +0200
- Subject: tr1::hashtable iterators
Hi.
Trying to compile the following with either SuSE's 4.0.2 or SVN trunk
rev. 113521
=======================================
std::tr1::unordered_map<int,int>::iterator it;
=======================================
I found that the Internal::hastable_iterator and
Internal::hashtable_const_iterator don't have default ctors which seems
strange to me. I couldn't find a PR about this issue.
The proposal n1456 only says that the iterators have to be forward
iterators. I don't know whether forward iterators have to be default
constructible but it seems unexpected to me if they don't.
I'm not sure whether this is the correct fix, but adding
hashtable_iterator()
: hashtable_iterator_base<Value, cache>(0, 0) { }
and the same for hashtable_const_iterator seems to work for me, i.e. it
compiles. I haven't done any further testing, yet.
Should I file a PR about this or is the current behavior correct?
Best regards,
Peter