no match for operator =

vaibhavs17 · 03-30-2009, 05:07 AM

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*> > > >&)

matsp · 03-30-2009, 05:20 AM

So you haven't got an iterator copy constructor.

--
Mats

vaibhavs17 · 03-30-2009, 05:52 AM

I could not understand, please explain.

anon · 03-30-2009, 06:17 AM

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

iMalc · 03-30-2009, 12:38 PM

Quote:

Originally Posted by matsp

So you haven't got an iterator copy constructor.

--
Mats

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.

03-30-2009, 05:07 AM	#1
vaibhavs17 Registered User Join Date: Mar 2009 Posts: 35	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> > > >&) Last edited by vaibhavs17; 03-30-2009 at 06:19 AM.
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03-30-2009, 05:20 AM	#2
matsp Kernel hacker Join Date: Jul 2007 Location: Farncombe, Surrey, England Posts: 15,686	So you haven't got an iterator copy constructor. -- Mats __________________ Compilers can produce warnings - make the compiler programmers happy: Use them! Please don't PM me for help - and no, I don't do help over instant messengers.
matsp is offline

03-30-2009, 05:52 AM	#3
vaibhavs17 Registered User Join Date: Mar 2009 Posts: 35	I could not understand, please explain.
vaibhavs17 is offline

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