C++ std::array Examples

Can you explain what std::array is in C++?

Sure! std::array is a container that encapsulates fixed size arrays. It provides better safety and functionality than raw arrays.

What are some examples of how to use std::array?

Here are a few examples:

1. Declaring an std::array: std::array<int, 5> arr = {1, 2, 3, 4, 5};
2. Accessing elements: int first = arr[0];
3. Iterating through elements: for (const auto& elem : arr) { std::cout << elem << ' '; }.

How does std::array differ from std::vector?

The main difference is that std::array has a fixed size determined at compile time, while std::vector can change size dynamically.

Can I use std::array with custom types?

Yes, you can use std::array with custom types as long as they are default-constructible and copyable.