Template class inheritance

[garbiner]

Hi group,

I am experiencing some problems when compiling my code. More precisely there is a problem in the constructor of my inherited template class.

template <class USG, class IC>
class InverseCumulativeChiSquareRsgublic QuantLib::InverseCumulativeRsg< USG, IC> {
public :
explicit InverseCumulativeChiSquareRsg(const USG& uniformSequenceGenerator) ;
InverseCumulativeChiSquareRsg(const USG& uniformSequenceGenerator,const IC& inverseCumulative); //<----the problem is here!!!
const sample_type& nextSequence() const;
private :
mutable sample_type xChiSquare_ ;
};

Now, the constructor for QuantLib::InverseCumulativeRsg< USG, IC> is defined as

template <class USG, class IC>
InverseCumulativeRsg<USG, IC>::InverseCumulativeRsg(const USG& usg,
const IC& inverseCum)
: uniformSequenceGenerator_(usg),
dimension_(uniformSequenceGenerator_.dimension()),
x_(Array(dimension_), 1.0),
ICD_(inverseCum) {}

and of course it works perfectly.

x_ is defined as private member of InverseCumulativeRsg<USG, IC> in such a way:

typedef Sample<Array> sample_type;
mutable sample_type x_;

So, the error I get is

'QuantLib::Sample<T>' : no appropriate default constructor available
with
[
T=QuantLib::Array
]

which for some reasons that I can't understand happens only when I try to instantiate the inherited class!
Any help or idea will be much appreciated!

Thanks,

Andrea