Unable to use the operator== of QValueList

[yellowmat]

Hi !

I have a compilation error whilie trying to use the operator == of a QValueList and I don't know why.

Here is the problem :
I have a simple class named CClassA which has :
* a default constructor
* a copy constructor
* an operator =
* an operator ==

I did compile and test the code of this class and everything is good.

I have another class named CClassB which has the same kind of constructors and operators, but it also has a member declared as follow :

QValueList<CClassA> m_vlListOfClassA;

QValueList<CClassA> m_vlListOfClassA;

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My problem is in the operator== of CClassB where I have the following code :

if( m_vlListOfClassA == ra.m_vlListOfClassA )
		return true;
	else
		return false;

if( m_vlListOfClassA == ra.m_vlListOfClassA )
		return true;
	else
		return false;

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It seems good to me but the compilation always fails and send the following message :

c:\qt\3.3.3\include\qvaluelist.h(582) : error C2678: binary '==' : no operator defined which takes a left-hand operand of type 'const class CClassA' (or there is no acceptable conversion)
c:\qt\3.3.3\include\qmap.h(240) : while compiling class-template member function 'bool __thiscall QValueList<class CClassA>::operator ==(const class QValueList<class CClassA> &) const'

What should I do in my operator== to check if both list content are equal if it is not possible to use the QValueList operator== ? Should I check every objet of boths lists ?

Thanks in advance.