Swift had remove the ++ and -- operators for the reason that it might be confusing to users.
Reference: Proposal from Chris Lattner
extension Int {
static prefix func --(i: inout Int) -> Int {
i -= 1
return i
}
static prefix func ++(i: inout Int) -> Int {
i += 1
return i
}
static postfix func --(i: inout Int) -> Int {
let n = i
i -= 1
return n
}
static postfix func ++(i: inout Int) -> Int {
let n = i
i += 1
return n
}
}
Just saw this extension, now we get to use these handy operators yet again. :p