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Swift:while文で変数に代入した結果を条件式にする

Posted at
C言語とかでのやり方
int valueA = 0;
while ( (valueB = function(valueA) ) != 0 ) {
    // do something to valueA
}
var valueA = 0
while case let valueB = function(valueA), valueB != 0 {
    // do something to valueA
}

caseをつけるとできるらしい.

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