Skip to content

Instantly share code, notes, and snippets.

@AkshayMathur92

AkshayMathur92/MyArray.cpp

Last active April 25, 2019 05:10
Show Gist options
  • Save AkshayMathur92/fa0cd0427cc0490ad94ca8e19721e863 to your computer and use it in GitHub Desktop.
Save AkshayMathur92/fa0cd0427cc0490ad94ca8e19721e863 to your computer and use it in GitHub Desktop.
Download ZIP
Array Implementation in C++
Raw
MyArray.cpp
/******************************************************************************
Array Implementation and Analysis
*******************************************************************************/
#include <memory>
#include <iostream>
template<typename T, size_t C>
class Array
{
std::unique_ptr<T[]> data;
size_t capacity;
void validate(size_t n) {
if (n >= capacity || n < 0) {
throw std::invalid_argument("Out of bounds " + n);
}
}
public:
Array() {
capacity = C;
data = std::unique_ptr<T[]>(new T[capacity]);
}
T& operator[](size_t n) {
validate(n);
return data.get()[n];
}
T* begin() {
return data.get();
}
T* end() {
return data.get() + capacity;
}
void print() {
for (T t : *this) {
std::cout << t << " ";
}
std::cout << std::endl;
}
};
int main ()
{
Array < int, 5 > myarray;
for (int i = 0; i < 5; i++)
{
myarray[i] = i;
}
myarray.print ();
std::cout << sizeof(myarray) << std::endl;
Array<Array<int,5>,5> nested_array;
for (int i = 0; i < 5; i++)
{
for (int j = 0; j < 5; j++)
{
nested_array[i][j] = i * 5 + j;
}
}
for(auto &darr : nested_array){
darr.print();
}
for(auto &darr : nested_array){
for(int &i : darr){
std::cout << &i << " ";
}
std::cout<<std::endl;
}
return 0;
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment