Question

I need help. When trying iterate over a set I get the following error:

Error 1 error C2440: ‘initializing’ : cannot convert from
‘std::_Tree_const_iterator<_Mytree>’ to
‘compound_objectNS::Compound_object *’ c:\program files
(x86)\microsoft visual studio 10.0\vc\include\xmemory 208

I got the following code:
extract from file “compound_object.cpp”:

typedef compound_objectNS::Compound_object OBJECT
    bool OBJECT::operator== (const Compound_object &object) const
    {
        return this == &object;
    }

    bool OBJECT::operator< (const Compound_object &object) const
    {
        return this->m_numberOfObject < object.m_numberOfObject;
    }

here to allow set to sort it elements I override operators “==” and ” <“

client file:

for (objectImitatorNS::set<compound_objectNS::Compound_object*>::iterator it = Objects->begin();
        it != Objects->end(); ++it)
    {
        this->m_imitatedObjects->insert(it);
    }

As I figured out error is raised when line

this->m_imitatedObjects->insert(it)

executed.

How to solve this issue?

Answer 1

std::set::insert (the version that takes one parameter) does not take an iterator. It takes a value. See here. You can try:

this->m_imitatedObjects->insert(*it);