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#include "List.h"
/* Private */
template <class T>
void List<T>::resize() {
length <<= 1;
T* temp = new T[length];
for (int i = 0; i < count; i++)
temp[i] = elements[i];
delete[] elements;
elements = temp;
}
template <class T>
void List<T>::free() {
delete[] elements;
}
template <class T>
void List<T>::copyFrom(const List& other) {
elements = new T[other.length];
for (int i = 0; i < other.count; i++)
elements[i] = other.elements[i];
length = other.length;
count = other.count;
}
/* Public */
template <class T>
List<T>::List(const T* elements, unsigned elementsCount) : List() {
for (unsigned i = 0; i < elementsCount; i++)
add(elements[i]);
}
template <class T>
void List<T>::add(const T& element) {
if (length == count) resize();
elements[count++] = element;
}
template <class T>
bool List<T>::removeAt(unsigned index) {
if (index >= count) return false;
delete elements[index];
for (int i = index; i < count; i++)
elements[i] = elements[i + 1];
elements[count--] = nullptr;
}
template <class T>
T& List<T>::operator[](unsigned index) {
return elements[index];
}
template <class T>
const T& List<T>::operator[](unsigned index) const {
return elements[index];
}
template <class T>
std::istream& List<T>::read(std::istream& istr) {
istr.read((char*)&length, sizeof(length));
istr.read((char*)&count, sizeof(count));
delete[] elements;
elements = new T[length];
for (int i = 0; i < count; i++)
elements[i].read(istr); // disgusting
return istr;
}
template <class T>
std::ostream& List<T>::write(std::ostream& ostr) const {
ostr.write((const char*)&length, sizeof(length));
ostr.write((const char*)&count, sizeof(count));
for (int i = 0; i < count; i++)
elements[i].write(ostr); // disgusting
return ostr;
}
template <class T>
unsigned List<T>::get_length() const {
return length;
}
template <class T>
unsigned List<T>::get_count() const {
return count;
}
// Rule of 4
template <class T>
List<T>::List() {
length = 8;
count = 0;
elements = new T[length];
}
template <class T>
List<T>& List<T>::operator=(const List& other) {
if (this != &other) {
free();
copyFrom(other);
}
return *this;
}
template <class T>
List<T>::List(const List& other) {
copyFrom(other);
}
template <class T>
List<T>::~List() {
free();
}
// Move semantics
template <class T>
List<T>::List(List&& other) {
length = other.length;
count = other.count;
elements = other.elements;
other.elements = nullptr;
}
template <class T>
List<T>& List<T>::operator=(List&& other) {
if (this != &other) {
free();
length = other.length;
count = other.count;
elements = other.elements;
other.elements = nullptr;
}
return *this;
}
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