Re: vector.resize assignment operator problem

Hi all,

I am trying to resize a vector of objects (MyObj below), which contain
references to other objects (OtherObj, see below). However, apparently
somewhere in the resize operation an assignment is done of the referenced
OtherObj object (according to the compiler messages). This is strange,
since the referenced OtherObj is initialized using member initialization
lists. Anyone a clue?

thanks,

Bram Kuijper

this is the source. Compiler messages (g++ 4.1.3) are listed below.

#include<vector>

using namespace std;

class OtherObj
{
        public:
        OtherObj()
        {}
};

class MyObj
{
        private:
                OtherObj const &objref;

        public:
                MyObj(OtherObj const &obj)
                :
                        objref(obj)
        {}

        MyObj(MyObj const &other)
                :
                        objref(other.objref)
        {}
};

int main()
{
        OtherObj obj = OtherObj(); //fine

        vector<MyObj> first(3, MyObj(obj)); //okay

        first.resize(10, MyObj(obj)); //ERROR

        return 0;
}

test.cpp:14: error: non-static reference member ?const OtherObj&
MyObj::objref?, can't use default assignment operator

*** Especially this error message above is puzzling me ***

/usr/include/c++/4.1.3/bits/stl_algobase.h: In static member function
?static void std::__fill<<anonymous> >::fill(_ForwardIterator,
_ForwardIterator, const _Tp&) [with _ForwardIterator =
__gnu_cxx::__normal_iterator<MyObj*, std::vector<MyObj,
std::allocator<MyObj> > >, _Tp = MyObj, bool <anonymous> = false]?:
/usr/include/c++/4.1.3/bits/stl_algobase.h:529: note: synthesized method
?MyObj& MyObj::operator=(const MyObj&)? first required here