> On Dec 14, 2015, at 11:04 AM, Jens Persson via swift-dev
> <swift-dev@swift.org> wrote:
>
> Yes, and I don't know if there is any particular reason why the == operator
> for Int doesn't have @warn_unused_result while the one for Doubles has:
>
> func f() { 1 == 2 } // OK
> func g() { 1.0 == 2.0 } // Warning: Result of call '==' is unused
That’s an oversight; please file a radar!
>
> On Mon, Dec 14, 2015 at 7:40 PM, Johan Jensen <j...@johanjensen.dk
> <mailto:j...@johanjensen.dk>> wrote:
> Because currently only unused variable/constant declarations have
> warnings/fix-its attached to them.
> There have been some discussion on making non-void functions warn of unused
> results
> <https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20151207/001580.html>
> and it’s possible that this would be in style with that.
> Perhaps (basically) empty statements should also give a warning?
>
> —Johan
>
> On Mon, Dec 14, 2015 at 7:08 PM, Jens Persson via swift-dev
> <swift-dev@swift.org <mailto:swift-dev@swift.org>> wrote:
> func ok() {
> let s = "see"; "Why are there exactly "
> 0 == 0 * 42
> "warnings and errors in this code"
> let t = s + "?"
> print(t)
> }
> ok() // see?
>
>
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-Dave
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