++ is deprecated it will be removed in swift 3 [closed]

Question

++ will be deprecated in swift 3

variable++ can now be written as

variable += 1

How can I rewrite ++variable.

Please recall difference between ++variable and variable++ syntax

Answer 1

Rewrite it as:

variable += 1

...exactly as the warning message suggests. This will now need to be a separate line, of course (that's the only bad thing about this change). What matters is where you put that line.

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So for example

let otherVariable = ++variable // variable is a previously defined var

now becomes

variable += 1 // variable is _still_ a previously defined var
let otherVariable = variable

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But on the other hand

let otherVariable = variable++ // variable is a previously defined var

now becomes

let otherVariable = variable
variable += 1 // variable is _still_ a previously defined var

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Extra for experts: In the rare situation where you return variable++ — that is, you return variable, which is in a higher scope, and then increment it — you can solve the problem like this:

defer {
    variable += 1
}
return variable

Answer 2

You can write variable += 1 on the line above. Implement a preincrement by incrementing, before.