Does not compile Ubuntu

[GoogleCodeExporter]

What steps will reproduce the problem?
auto range = duplicates.equal_range(query_ids_temp[i]);
        for (auto it = range.first; it != range.second; ++it) {
            std::vector<unsigned int>::iterator pos = std::find(deleted_queries.begin(), deleted_queries.end(), it->second);
            if (pos != deleted_queries.end()) {
                duplicates.erase(it);
                deleted_queries.erase(pos);

            } else {
                query_ids.push_back(it->second);
            }
        } 

The error seems to be the it->second

What is the expected output? What do you see instead?
In file included from ref_impl/../include/btree_map.h:31:0,
                 from ref_impl/core.cpp:48:
ref_impl/../include/btree.h: In instantiation of 
‘btree::btree_node<Params>::reference btree::btree_node<Params>::value(int) 
[with Params = btree::btree_map_params<unsigned int, unsigned int, 
std::less<unsigned int>, std::allocator<std::pair<const unsigned int, unsigned 
int> >, 256>; btree::btree_node<Params>::reference = std::pair<const unsigned 
int, unsigned int>&]’:
ref_impl/../include/btree.h:809:33:   required from 
‘btree::btree_iterator<Node, Reference, Pointer>::pointer 
btree::btree_iterator<Node, Reference, Pointer>::operator->() const [with Node 
= btree::btree_node<btree::btree_map_params<unsigned int, unsigned int, 
std::less<unsigned int>, std::allocator<std::pair<const unsigned int, unsigned 
int> >, 256> >; Reference = std::pair<const unsigned int, unsigned int>&; 
Pointer = std::pair<const unsigned int, unsigned int>*; 
btree::btree_iterator<Node, Reference, Pointer>::pointer = std::pair<const 
unsigned int, unsigned int>*]’
ref_impl/core.cpp:539:106:   required from here

What version of the product are you using? On what operating system?
Version 1.0.1,
Ubuntu 12.04

Please provide any additional information below.

Original issue reported on code.google.com by nteni...@gmail.com on 21 Mar 2013 at 3:16