Copy Constructor Example

class atom {

private:

int x, y, z;

public:

x(); y(); z();

};

class molecule {

private:

atom *atom_array;

int n;

public:

// constructor

molecule(int natoms);

// copy constructor

molecule(molecule &m)

};

molecule::molecule(int natoms);

{

n = natoms;

atom_array = new atom[natoms];

}

// the copy constructor makes a new

// molecule using an old molecule as

// a model -- it makes a deep copy

molecule::molecule(molecule &m)

{

n = m.n;

atom_array = new atom[n];

for (int i=0; i<n; i++)

atom_array[i] = m.atom_array[i];

}

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