> On Dec 18, 2015, at 6:52 PM, Dmitri Gribenko <[email protected]> wrote: > > On Fri, Dec 18, 2015 at 6:21 PM, Joe Groff <[email protected]> wrote: >> >> On Dec 18, 2015, at 6:08 PM, Dmitri Gribenko <[email protected]> wrote: >> There's also a possibility that we add 'out' parameters in the future, and >> if 'inout' would be spelled '&', then we would need to find another sigil >> for 'out'. >> >> We have multiple returns. Why would we ever add out parameters? > > I don't want to turn this thread into a discussion about out > parameters, but one reason would be to replace > AutoreleasingUnsafeMutablePointer.
IMO we should eventually import out params from C as multiple returns. > Another one is to add labels to > the output parameters: > > let (day, month, year) = parseDate() > let (year, day, month) = parseDate() // bug? Labeled tuples seem like they could help with that, with compiler QoI to catch cases like this where you obviously permuted the return names. -Joe _______________________________________________ swift-evolution mailing list [email protected] https://lists.swift.org/mailman/listinfo/swift-evolution
