type restriction and inheritance : please please help me!

[crou]

First of all, I apologize in advance for my poor english.

Here is my problem :

I use two template classes : Container and Array which is derived from Container.

Container can contain absolutely anything and Array, which is more specific, should be used only with simple type (float, short, etc...)

However, I need to use Array with more elaborate types such as CPoint

When I try, I have a message such as :

undefined reference to `CArray<CPoint>::CArray(int, int)'

How is that possible?
Is it possible to restrict the Type when a class derives from another?

Any help will be welcome
Thank you in advance

croucrou

[Bob Davis]

It may help if you could post the interface and implementation files for the Container and Array classes, so we can see what you've got so far.

[crou]

As I said before, CContainer is able to contain absolutely anything

For instance, I built a class called temp:


template <class Type> class temp : public CContainer<Type>
{ };

void main(void)
{
CContainer<CPoint> f(3, 4);
temp<CPoint> g(3,4);
}





and the compiler tell me

no matching function for call to `temp<CPoint>::temp (int, int)'

but there are no errors for the construction of the CContainer<CPoint>

How is that possible?