Question

I have a class:

class MakeMeshStructure : public QObject
{
Q_OBJECT
public:

MakeMeshStructure(QObject* parent = 0) {}

inside one of its functions I do this:

CadPanel * paneli;
int npanelov = mesh.faces_end().handle().idx();
paneli = new CadPanel[npanelov];

and later this:

for(int i=0; i<npanelov;i++){
    if(paneli[i].wasSet)paneli[i].draw(this);
}

this is my panel class:

class CadPanel : public QObject
{

Q_OBJECT
public:

CadPanel();
void draw(MakeMeshStructure* parent); //error here

The error is: Error 27 error C2061: syntax error : identifier ‘MakeMeshStructure’

How do I pass MakeMeshStructure parent on to be used in this CadPanel function? Ty

Answer 1

You must add a forwarding class declaration to your class:

class MakeMeshStructure; // IMPORTANT: Declares a forwarding class

class CadPanel : public QObject 
{

    Q_OBJECT
public:

    CadPanel();
    void draw(MakeMeshStructure* parent); // no more error :)
}

Note that if the classes are in separate namespaces, you must qualify the name with the proper namespace.