{"id":1017,"date":"2016-07-27T18:41:24","date_gmt":"2016-07-27T09:41:24","guid":{"rendered":"http:\/\/www.chihayafuru.jp\/tech\/?p=1017"},"modified":"2021-06-04T17:10:20","modified_gmt":"2021-06-04T08:10:20","slug":"cannot-jump-from-switch-statement-to-this-case-label","status":"publish","type":"post","link":"https:\/\/www.chihayafuru.jp\/tech\/index.php\/archives\/1017","title":{"rendered":"[Objective-C] Cannot jump from switch statement to this case label"},"content":{"rendered":"

1. \u75c7\u72b6<\/h3>\n

Objective-C \u306e switch\u69cb\u6587\u306e\u5185\u5074\u3067\u30d6\u30ed\u30c3\u30af\u3092\u5b9a\u7fa9\u3059\u308b\u3068\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc "Cannot jump from switch statement to this case label<\/strong>" \u304c\u767a\u751f\u3059\u308b\u3002<\/p>\n

 <\/p>\n

2. \u5bfe\u7b56<\/h3>\n

case\u6587\u306e\u5185\u5074\u3092 { } \u3067\u62ec\u308b\u3002<\/p>\n

<\/p>\n

2.1. \u4fee\u6b63\u524d<\/h4>\n
switch (flag) {\r\n  case 1:\r\n    [aObject completion: ^{\r\n      NSLog(\"1 is selected\");\r\n    }];\r\n    break;\r\n  case 2:  \/\/ \u2190 Cannot jump from switch statement to this case label\r\n    [aObject completion: ^{\r\n      NSLog(\"2 is selected\");\r\n    }];\r\n    break;\r\n  default;\r\n    [aObject completion: ^{\r\n      NSLog(\"Anything is not selected\");\r\n    }];\r\n    break;\r\n}<\/pre>\n
2.2. \u4fee\u6b63\u5f8c<\/h4>\n
switch (flag) {\r\n  case 1:\r\n  {\r\n    [aObject completion: ^{\r\n      NSLog(\"1 is selected\");\r\n    }];\r\n    break;\r\n  }\r\n  case 2:\r\n  {\r\n    [aObject completion: ^{\r\n      NSLog(\"2 is selected\");\r\n    }];\r\n    break;\r\n  }\r\n  default;\r\n  {\r\n    [aObject completion: ^{\r\n      NSLog(\"Anything is not selected\");\r\n    }];\r\n    break;\r\n  }\r\n}<\/pre>\n
 <\/p>\n
3. \u95a2\u9023\u9805\u76ee<\/h3>\n