Constructing with {} uses an initializer list and the () is constructing by setting the size. See more details here: https://stackoverflow.com/questions/3318554

Constructing with {} uses an initializer list and the () is constructing by setting the size. See more details here: https://stackoverflow.com/questions/33185543/delegating-constructors-in-c-or/33185595#33185595 https://stackoverflow.com/questions/33185543/delegating-cons...