I’m a newbie in C++ and just learned how to use template.
I want to write a Matrix class with the following template arguments:

template < int nRow ,int nCol ,typename T = double >
class ZDMatrix  {
public:
    ZDMatrix();
    ZDMatrix( T arg0 );
    ZDMatrix( T arg0 ,T arg1 );
    // ... How to declare the constructor with exactly nRow*nCol arguments of type T ??
    // ZDMatrix( T arg0 ,T arg1 ,... ) {
    //     ... number or argN should be nRow*nCol
    // }
};

I want to be able to use the matrix like this:
ZDMatrix<2,3> matX( 1 ,1.1 ,1.2 ,2,2.1,2.2 ); // auto convert int 1 to double 1.0

As an alternative, I already try using initializer_list:

ZDMatrix<nRow,nCol,double>::ZDMatrix( std::initializer_list<T> list )  {
    assert( list.size() == nRow*nCol );
    // ...
}

But the check for number of arguments is at run time not static_assert()