<div dir="ltr">You can currently achieve the same result if you remove `[inout a]` since `var`s are captured by reference.<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Oct 5, 2016 at 9:06 PM, Cao Jiannan via swift-evolution <span dir="ltr">&lt;<a href="mailto:swift-evolution@swift.org" target="_blank">swift-evolution@swift.org</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">for example:<br>
<br>
var a = 1<br>
<br>
let block = { [inout a] in<br>
        a += 1<br>
}<br>
<br>
block()<br>
block()<br>
<br>
print(a) // 3<br>
<br>
<br>
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</blockquote></div><br></div>