objective c - XCode - nested functions are disabled ! -

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i used able foreach loops in xcode, after installing sdk 4 errors

error: nested functions disabled, use -fnested-functions re-enable

how can enable nested functions says "use -fnested-", use where? how?

for (myobject *obj : array) {  }

i think mean:

for (myobject * obj in array) { ... }

(note use in , not :.


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