// intarray.cpp - demo for CS 32
// cmc, 11/2/2011

#include <iostream>
#include "intarray.h"
using namespace std;

ostream& operator<< (ostream &out, const IntArray &array) {
    out << "[";
    for (int i=0; i<array.length; i++) {
        out << array.values[i];
        if (i<array.length-1) out << ",";
    }
    out << "]";
    return out;
}

IntArray::IntArray(int length) : length(length) {
    values = new int[length];
    cout << "basic ctor: object @ " << this << ", data[" << length
        << "] @ " << values << endl;
}

IntArray::IntArray(const IntArray &other) {
    length = other.length;
    values = new int[length];
    for (int i=0; i<length; i++)
        values[i] = other.values[i];
    cout << "copy ctor: object @ " << this << ", data[" << length
        << "] @ " << values << endl;
}

IntArray::~IntArray() {
    delete [] values;
    cout << "dtor: object @ " << this << ", data[" << length
        << "] @ " << values << endl;
}

int IntArray::getLength() const {
    return length;    
}
int IntArray::get(int position) const {
    if (position >= 0 && position < length)
        return values[position];
    else
        return 0; // not such a good idea, but okay for now
}

void IntArray::set(int position, int value) {
    if (position >= 0 && position < length)
        values[position] = value;
}

IntArray& IntArray::operator= (const IntArray &right) {
    cout << "assignment op: object @ " << this;
    if (this != &right) {
        if (length != right.length) {
            cout << ", deleting data[" << length << "] @ " << values;
            delete [] values;
            length = right.length;
            values = new int[length];
        }
        for (int i=0; i<length; i++)
            values[i] = right.values[i];
        cout << ", copied data[" << length << "] to " << values << endl;
    }
    
    else
        cout << ", did not copy self!" << endl;
        
    return *this;
}