Create exercise-10.cpp

submission/exercise-10/woojinKim/exercise-10.cpp

@@ -0,0 +1,132 @@
+#include <iostream>
+#include <cstdint>
+
+template<typename T>
+class MyVector {
+public:
+	MyVector()
+		: data_(nullptr),
+		capacity_(3),
+		size_(0)
+	{
+		data_ = new T[capacity_];
+	}
+
+	// copy constructor
+	MyVector(const MyVector& other)
+		: capacity_(other.capacity_),
+		size_(other.size_)
+	{
+		data_ = new T[capacity_];
+		for (int i = 0; i < size_; ++i) {
+			data_[i] = other[i];
+		}
+	}
+	// move constructor
+	MyVector(MyVector&& other) noexcept
+		: size_(other.size_),
+		  capacity_(other.capacity_)
+	{
+		delete[] data_;
+		other.data_ = nullptr;
+		other.size_ = 0;
+		other.capacity_ = 0;
+	}
+	// copy assignment operator
+	MyVector& operator=(const MyVector& other)
+	{
+		size_ = other.size_;
+		capacity_ = other.capacity_;
+		for (int i = 0; i < size_; ++i)
+		{
+			data_[i] = other.data_[i];
+		}
+		return *this;
+	}
+	// move assignment operator
+	MyVector& operator=(MyVector&& other) 
+	{
+		if (this != &other)
+		{
+			delete[] data_;
+			size_ = other.size_;
+			capacity_ = other.capacity_;
+			other.data_ = nullptr;
+			other.capacity_ = 0;
+			other.size_ = 0;
+		}
+		return *this;
+	}
+
+	~MyVector() {
+		delete[] data_;
+	}
+
+	void push_back(const T& data)
+	{
+		if (size_ >= capacity_)
+		{
+			// �뷮 �ø���
+			capacity_ = capacity_ * 2;
+			// �޸� ���� �Ҵ�
+			T* new_data = new T[capacity_];
+			// ���� ������ ����
+			std::copy(data_, data_ + size_, new_data);
+			// ���� �޸� ����
+			delete[] data_;
+			// ���� ������ ��ü
+			data_ = new_data;
+		}
+
+		data_[size_] = data;
+		size_ += 1;
+	}
+
+	void pop_back()
+	{
+		if (size_ > 0) {
+			size_ -= 1;
+		}
+	}
+
+	// ���� �ε����� �޾��� �� ����ó�� �ʿ�
+	const T& operator[](std::size_t i) const
+	{
+		return *(data_ + i);
+	}
+
+	T& operator[](std::size_t i) {
+		return *(data_ + i);
+	}
+
+	std::size_t size() const
+	{
+		return this->size_;
+	}
+
+
+private:
+	T* data_;
+	std::size_t capacity_;
+	std::size_t size_;
+};
+
+int main()
+{
+	{
+		MyVector<int> v;
+
+		v.push_back(1);
+		v.push_back(2);
+		v.push_back(3);
+		v.push_back(4);
+		v.push_back(5);
+
+		MyVector<int> v2 = std::move(v);
+		std::cout << v2.size() << std::endl;
+		std::cout << v.size() << std::endl;
+
+	} // v �Ҹ�
+
+	return 0;
+}