no match for operator =

I am facing below error at highlighted line

Code:

---

    while (iter != dcFacMap.end())
        {
                FacilityId facId = iter->first->GetFacilityId();
                vector<FacilityId>::iterator facIter = find(oFacIdList.begin(),
                        oFacIdList.end(), facId);
                if (facIter == oFacIdList.end())
                {
                        //DC has no outbound
                        iter = dcFacMap.erase(iter);
                }
                else
                {
                        iter++;
                }
        }

---

error:
FleetRouteGenManager.cpp:5774: error: no match for âoperator=â in âiter = ((SequencedFacilityMap*)dcFacMap)->std::map<_Key, _Tp, _Compare, _Alloc>::erase [with _Key = Facility*, _Tp = std::vector<Facility*, std::allocator<Facility*> >, _Compare = std::less<Facility*>, _Alloc = std::allocator<std::pair<Facility* const, std::vector<Facility*, std::allocator<Facility*> > > >](iter)â
/usr/lib/gcc/i386-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_tree.h:152: note: candidates are: std::_Rb_tree_iterator<std::pair<Facility* const, std::vector<Facility*, std::allocator<Facility*> > > >& std::_Rb_tree_iterator<std::pair<Facility* const, std::vector<Facility*, std::allocator<Facility*> > > >::operator=(const std::_Rb_tree_iterator<std::pair<Facility* const, std::vector<Facility*, std::allocator<Facility*> > > >&)

So you haven't got an iterator copy constructor.

--
Mats

I could not understand, please explain.

map::erase might not return an iterator, although this can vary between implementations

Quote:

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Originally Posted by matsp

So you haven't got an iterator copy constructor.

--
Mats

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Nah he's got the copy-constructor, otherwise the line with the find would fail to compile.
That line is doing assignment anyway. Probably missing the assignment operator.