Tag: C++, std::array, std::vector

  • Differences Between std::array and std::vector

    C++ offers `std::array` and `std::vector` for storing collections. `std::array` is a fixed-size array known at compile time. `std::vector`, on the other hand, can grow dynamically. This makes `std::vector` more flexible for varying data sizes. Here’s a comparison:

    “`cpp
    #include
    #include
    #include
    using namespace std;
    int main() {
    array arr = {1, 2, 3};
    vector vec = {1, 2, 3};
    vec.push_back(4); // Vector size changes
    cout << arr.size() << " " << vec.size(); // Outputs 3 4 return 0; } ``` In this code, `std::array` remains fixed while `std::vector` can expand. Choose based on your application needs.