Thread: Template

Hi all,

I am having trouble with class definition with template. The following is a simple example:

Code:

template <class DataType>
struct TestStruct {
  DataType key;
};

template <class s, class d>
class DummyClass {
public:
  d getKey(s<d> *var) {
    return var->key = 10;
  }
};

int main() {
  DummyClass<TestStruct, double> myClas;
  return 0;
}

It produces an error because of s<d>.

If I write:

Code:

template <class DataType>
struct TestStruct {
 DataType key;
};

template <class s, class d>
class DummyClass {
public:
 d getKey(s *var) {
   return var->key = 10;
 }
};

int main() {
 DummyClass<TestStruct<double>, double> myClas;
 return 0;
}

It works just fine. But that is not I want because I need to use "double" twice. Can anyone help?