How can I edit my code to create a std::array from a size not known at compile time? You can’t. std::array is a fixed-sized array, it’s size must be a constant known at compile-time. To make a dynamic array whose size is not known until runtime, you must use new[] instead: int *items = new … Read more
The question betrays some misunderstandings about what is going on here. std::array is an array object. It is an object whose storage size is the storage for its array elements. std::initializer_list is a pointer to an array (one created by the compiler). You can heap-allocate std::array for example; you cannot heap-allocate std::initializer_list. Well, you can, … Read more
Here are the ones I know of: Traditional a.k.a. plain a.k.a. C array vector unique_ptr with an array-type template argument array valarray dynarray static_vector (see also here) small_vector stable_vector There are also “variable-length arrays” and “arrays with runtime bounds”, which do not exist in C++; the former exists in C. See also this question and … Read more