Question

C++ question.
I need help writing a function (operator+) that concatenates arrays for a class. More info inside.

Answer 1

template <class T>
class CArray
{
public:
// constructors
CArray(unsigned size = DEFAULT_SIZE, T element = static_cast<T>(0));
CArray(const CArray<T>& ar);

// destructor
~CArray() { if(m_array != nullptr) delete[] m_array; }
unsigned getSize() const { return m_size; }
void print(ostream& sout, char delimiter = ' ') const;

// operators
CArray<T> operator=(const CArray<T>& array);
T& operator[](unsigned index);
const T& operator[](unsigned index) const;
CArray<T> operator*=(unsigned scalar);
CArray<T> operator*(unsigned scalar) const;
CArray<T> operator+(const CArray<T>& array) const;
CArray<T> operator+=(const CArray<T>& array);
static const int DEFAULT_SIZE = 10;
private: // properties
T* m_array;
unsigned m_size;
};

template <class T>
ostream & operator<<(ostream & sout, const CArray<T> &arrray);


So this is the class. This is what I have for operator+.
template <class T>
CArray<T> CArray<T>::operator+ (const CArray<T>& array) const
{
CArray<T> temp(*this);
temp.m_size = temp.m_size + array.m_size;
for (unsigned i = 0; i < array.m_size; i++)
{
temp.m_array[m_size+i] = array.m_array[i];
}
return temp;

}


template <class T>
CArray<T> CArray<T>::operator+=(const CArray<T>& array)
{
return *this = *this + array;
}
}