Comment Comment by s3cur3 Swift's Array type is just so well designed. It's a delight to use.Two things stood out to me here as being really nice for someone coming from C++:- Implicit upcasting to convert `[Derived]` to `[Base]` in O(1).- Checked conversions convert `[T]` to `[U]?` in O(N) via `a as [U]` in O(n).These are both operations I've manually written the C++ code to do, because there's no ergonomic way to do it with `std::vector`. parent s3cur3 5 years ago
Two things stood out to me here as being really nice for someone coming from C++:
- Implicit upcasting to convert `[Derived]` to `[Base]` in O(1).
- Checked conversions convert `[T]` to `[U]?` in O(N) via `a as [U]` in O(n).
These are both operations I've manually written the C++ code to do, because there's no ergonomic way to do it with `std::vector`.