template-sample-generics.cpp

#include <stdio.h>

// As generics
template <class T>
class List {
public:
    List() {
        m_count = 0;
    }
    void Add(const T& t) {
        m_buf[m_count++] = t;
    }
    int Count() const {
        return m_count;
    }
    T& operator[](int index) {
        return m_buf[index];
    }
private:
    int m_count;
    T m_buf[256];
};

int main()
{
    List<int> a;
    a.Add(10);
    a.Add(20);
    printf("%d\n", a[0]);
    printf("%d\n", a.Count());
    return 0;
}