Segmentation fault when accessing elements of std::array after resizing std::vector in C++17
I recently switched to I've been struggling with this for a few days now and could really use some help... Hey everyone, I'm running into an issue that's driving me crazy. I'm working with a segmentation fault when I try to access elements of an `std::array` after resizing an `std::vector` that was used to initialize it. I am using C++17 and I have the following code: ```cpp #include <iostream> #include <vector> #include <array> std::array<int, 5> initializeArray(const std::vector<int>& vec) { std::array<int, 5> arr; for (size_t i = 0; i < vec.size() && i < arr.size(); ++i) { arr[i] = vec[i]; } return arr; } int main() { std::vector<int> vec = {1, 2, 3}; auto arr = initializeArray(vec); vec.resize(10, 0); std::cout << "Element 3: " << arr[3] << std::endl; // This line causes a segfault return 0; } ``` I expected that the `std::array` would still hold the original values assigned to it, but when I try to access `arr[3]`, it leads to a segmentation fault. I read that `std::array` is fixed size and should not be affected by changes in the `std::vector`, so I'm confused about what's happening here. I tried running the code with different lengths of `vec`, and no matter how I resize it afterward, accessing elements beyond what was initialized in the array seems to lead to crashes. I also considered that maybe the elements are being accessed out of bounds, but I verified that my `std::array` is indeed of size 5. Could anyone explain why this segmentation fault occurs in this scenario and how I should handle such cases to avoid this scenario? Thanks in advance! My development environment is Windows. I'm open to any suggestions.