Is there ever a case where "return n" will cause a problem due to something within ". . ." ?

func foo() -> Int
{
    . . .
    return n
}

Or, should I always use return( n ) ?

func foo() -> Int
{
    . . .
    return( n)
}

CodePudding user response：

I don't think the parentheses are needed unless you declare your function to return a tuple.

As gnasher says in their answer, the parens in the return are weird.

I seem to remember that a function result in Swift is always considered to be a tuple, where Void is a special case empty tuple. If my (vague) memory is correct that might explain why the parens are valid. I need to see if I can dig that up.

CodePudding user response：

The parentheses are absolutely weird. They are weird in C, in Swift they are bizarre.

And since space is relevant in Swift, your weird spacing makes it even weirder.

As a rule, you don’t write anything unnecessary in Swift.