On Tuesday, 22 November 2016 at 15:11:04 UTC, Sönke Ludwig wrote:
Am 21.11.2016 um 22:19 schrieb Timon Gehr:
3 is ambiguous.


Can you give an example?

I'm curious as well. I considered that option 3 might be ambiguous but I managed to convince myself that it wouldn't be. I'm guessing you're referring to the fact that:

{
    //function body
}

Is a delegate literal, which could conceivably conflict with Option 3's syntax?

void fun(ref int n)
in { assert(n > 0); }
out { assert(n > 0); }
{ //Is this a syntax error or an immediately executed delegate literal?
    n += 1;
}()

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