70 lines
1.4 KiB
C++
70 lines
1.4 KiB
C++
template<class T>
|
|
class Vec{
|
|
public:
|
|
typedef unsigned int size_type;
|
|
Vec(){
|
|
m_data = new T[2];
|
|
m_size = 0;
|
|
capacity = 2;
|
|
}
|
|
Vec(int size, const T& val){
|
|
m_data = new T[size];
|
|
m_size = size;
|
|
capacity = size;
|
|
for(int i=0;i<size;i++){
|
|
m_data[i] = val;
|
|
}
|
|
}
|
|
Vec(const Vec& other){
|
|
capacity = other.capacity;
|
|
m_size = other.m_size;
|
|
m_data = new T[capacity];
|
|
for(unsigned int i=0;i<m_size;i++){
|
|
m_data[i] = other.m_data[i];
|
|
}
|
|
}
|
|
~Vec(){
|
|
delete [] m_data;
|
|
}
|
|
Vec<T>& operator=(const Vec& other){
|
|
if(this != &other){
|
|
capacity = other.capacity;
|
|
m_size = other.m_size;
|
|
m_data = new T[m_size];
|
|
for(unsigned int i=0;i<m_size;i++){
|
|
m_data[i] = other.m_data[i];
|
|
}
|
|
}
|
|
return *this;
|
|
}
|
|
T& operator[](int i){
|
|
return m_data[i];
|
|
}
|
|
const T& operator[](int i) const {
|
|
return m_data[i];
|
|
}
|
|
unsigned int size(){
|
|
return m_size;
|
|
}
|
|
void push_back(const T& val){
|
|
if(m_size >= capacity){
|
|
capacity = capacity * 2;
|
|
T* temp = new T[capacity];
|
|
for(unsigned int i=0;i<m_size;i++){
|
|
temp[i] = m_data[i];
|
|
}
|
|
delete [] m_data;
|
|
m_data = temp;
|
|
}
|
|
m_data[m_size] = val;
|
|
m_size++;
|
|
}
|
|
void pop_back(){
|
|
m_size--;
|
|
}
|
|
private:
|
|
int capacity;
|
|
int m_size;
|
|
T* m_data;
|
|
};
|