#include <iostream>

using namespace std;

#include "myVector.h"

template <class T>
myVector<T>::myVector():vec(NULL),size(0),capacity(INITSIZE){
	vec= new T [capacity];
}

template <class T>
myVector<T>::myVector(const myVector<T>& toCopy):vec(NULL),size(0),capacity(0){
	copy(toCopy);
}

template <class T>
myVector<T>& myVector<T>::operator= (const myVector<T>& toCopy){
	if(this!=&toCopy){
		del();
		copy(toCopy);
	}
	return *this;
}

template <class T>
myVector<T>::~myVector(){
	del();
}

template <class T>
void myVector<T>::push_back(const T& toPush){
	if(size==capacity)
		resizeUp();
	vec[size++]=toPush;
}

template <class T>
bool myVector<T>::pop_back(){
	if (size==0) return false;
	if (capacity>INITSIZE&&size--<=(capacity-2*INITSIZE))
		resizeDown();
	return true;
}

template <class T>
uint myVector<T>::getSize(){
	return size;
}

template <class T>
T& myVector<T>::operator[] (uint at){
	if (at>=size)
		exit (-1);
	return vec[at];
}

template <class T>
void myVector<T>::resizeUp(){
	capacity= capacity+INITSIZE;
	T* temp= new T[capacity];
	for(uint i=0;i<size;++i)
		temp[i]=vec[i];
	delete[] vec;
	vec=temp;
}

template <class T>
void myVector<T>::resizeDown(){
	capacity= capacity-INITSIZE;
	T* temp= new T[capacity];
	for(uint i=0;i<size;++i)
		temp[i]=vec[i];
	delete[] vec;
	vec=temp;
}

template <class T>
void myVector<T>::copy(const myVector<T>& toCopy){
	capacity=toCopy.capacity;
	size=toCopy.size;
	vec = new T[capacity];
	for (uint i=0;i<size;++i)
		vec[i]=toCopy.vec[i];
}

template <class T>
void myVector<T>::del(){
	delete[] vec;
}

template <class T>
void myVector<T>::print(){
	for(uint i=0; i<size;i++){
		cout<<vec[i]<<" ";
	}
	cout<<endl;
}