class CppMath
{
public:

CppMath(int arg1, int arg2,const CString &str);
//Copy constructor
CppMath(const CppMath &myCppMath);
double Add(double arg1, double arg2);
....
CString &GetTestString(void);

private:
    int firstArg;
    int secondArg;
    CString testString;
};

CppMath::CppMath(int arg1, int arg2,const CString &str):
  firstArg(arg1),
  secondArg(arg2),
  testString(str)
{
}

**//1. How do you create a C++/CLI wrapper for this constructor**
CppMath::CppMath(const CppMath &myCppMath)
{
    firstArg = myCppMath.firstArg;
    secondArg = myCppMath.secondArg;
    testString = myCppMath.testString;
}
double CppMath::Add(double arg1, double arg2)
{
    return arg1 + arg2;
}
...
 CString & CppMath::GetTestString()
{
    return testString;
}

namespace CLRWrapper {
public ref class CppMathWrapper
  {
    public:
      CppMathWrapper(void *cppMath); **//2. Not sure how to declare a wrapper for this native C++ constructor "CppMath(const CppMath &myCppMath);" **
      CppMathWrapper(int arg1, int arg2, String ^str);
      double Add(double arg1, double arg2);
      ...
      String ^GetTestString(void);

private:
    CppMath *cppMath;

};

CLRWrapper::CppMathWrapper::CppMathWrapper(void *cppMath)
{
    ???  //3. How to convert ccpMath to CppMath pointer type
    cppMath = new CppMath(cppMath);

}

CLRWrapper::CppMathWrapper::CppMathWrapper(int arg1, int arg2, String ^str)
{
    cppMath = new CppMath(arg1, arg2, str);
}

double CLRWrapper::CppMathWrapper::Add(double arg1, double arg2)
{
   return cppMath->Add(arg1, arg2);
}
...

String ^CLRWrapper::CppMathWrapper::GetTestString()
{
    return (gcnew String(cppMath->GetTestString()));
}