Just the same in Objective C, unless you're dealing with a C struct (not being passed by pointer) or a primitive type you're in a sea of Objective C references.

Just the same in Objective C, unless you're dealing with a C struct (not being passed by pointer) or a primitive type you're in a sea of Objective C references. Value types are brand new to the non-Foundation framework ecosystem as far as writing new, stylistically correct, code is concerned. This in my experience does seem to be a sticking point for people without a good bit of experience in languages with the same or similar value and reference type split (C++, Java, C#, Rust, etc).