回答編集履歴
1
fix position of inout
answer
CHANGED
@@ -102,7 +102,7 @@
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102
102
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引数化すると:
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103
103
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104
104
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```swift
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105
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-
func +=(
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105
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+
func +=(tac: inout Clock, n: Int) {
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106
106
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tac.advance(n)
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107
107
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}
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108
108
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```
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