> On May 19, 2016, at 10:00 AM, Ken Burgett via swift-users > <[email protected]> wrote: > > I would like to know if a struct in Swift has any guarantee of contiguity, > like a struct in C. I am attempting to port a C program that makes many > assumptions about the underlying semantics of C structs, and does things like > overlaying an array over the struct using a cast, and then performs and > cryptographic hashing of the entire struct by treating it as an array. > > 1. I a Swift struct contiguous? > > 2. If 1 above is true, can I somehow cast an array over the struct?
Swift structs have unspecified layout. If you depend on a specific layout, you should define the struct in C and import it into Swift for now. -Joe _______________________________________________ swift-users mailing list [email protected] https://lists.swift.org/mailman/listinfo/swift-users
