Programming

 
#ifndef SUM_H_INCLUDED
#define SUM_H_INCLUDED
#include <iostream>
using namespace std;
template <class T>
class Sum
{
friend void Check(Sum &s, T a, T b)     // Friend Function
{
    T x, y;
    x = (a > 0 && a <= 10000) ? a : 0;
    y = (b > 0 && b <= 10000) ? b : 0;
    s.Write(x, y);
}
private:
T x;
T y;
void Write(T a, T b)
{
    x = a;
    y = b;
}
T Add(T a, T b)          // Utility Function
{
    return a + b;
}
public:
Sum()
{
    x = 0;
    y = 0;
}
void Read()
{
    cout << "x = " << x << endl;
    cout << "y = " << y << endl;
    cout << "Sum = " << Add(x, y) << endl << endl;
}
protected:
T z;
};

 
#include <iostream>
#include "Sum.h"
using namespace std;
template <class T>
class GrandSum : public Sum     // Derived class of base class Sum
{
private:
T X;
T Y;
public:
GrandSum()
{
X = 0;
Y = 0;
//z = 0;
}
void Get(T a, T b, T c)
{
    X = a;
    Y = b;
//    z = c;
}
void Show()
{
    T sum;
    sum = /*x + y + z*/ + X + Y;
    cout << sum << endl;
}
};
int main()
{
    GrandSum<int> s2;
    Sum<int> s1;
    Check(s1, 1, 2);
    s1.Read();
    return 0;
}

 
C:\Users\dawood\CodeBlocks\PL2_Final\main.cpp|6|error: expected class-name before '{' token
||=== Build finished: 1 errors, 0 warnings ===