How far is it true that "using a struct means no ARC cost"?
The struct itself isn't managed by ARC, but if it has reference fields inside, every copy does one retain per field. Collections like String and Array hold a reference to a heap buffer, so they count too.
SwiftShort answerBasics
In Swift, what's the fundamental difference between a struct and a class?
#value-type #cow #struct
SwiftShort answerAdvanced
You need to put a very large Dictionary, hundreds of thousands of entries, into a struct…
#value-type #cow #performance
Memory and ARCMultiple choiceAdvanced
Which of these actually improve the performance of class-based code (dispatch and ARC…
#arc-traffic #performance
Memory and ARCShort answerAdvanced
… After s2.a = 9, are the addresses where s1.a and s2.a are stored the same or different…
#cow #struct