{"provider_name":"Hatena Blog","blog_title":"\u3042\u308b\u3079\u308b\u306eIT\u95a2\u9023\u30e1\u30e2","width":"100%","height":"190","image_url":null,"author_url":"https://blog.hatena.ne.jp/albel06/","published":"2017-11-20 23:31:46","description":"\u307b\u3093\u3068\u306f\u30aa\u30d7\u30b7\u30e7\u30ca\u30eb\u578b\u306e\u301c\u3068\u304b\u8aac\u660e\u304c\u5fc5\u8981\u306a\u306e\u3060\u3051\u3069 as \u30a2\u30c3\u30d7\u30ad\u30e3\u30b9\u30c8\u306a\u3069\u78ba\u5b9a\u7684\u306a\u30ad\u30e3\u30b9\u30c8\u306b\u4f7f\u7528\u3002 as! \u5f37\u5236\u30ad\u30e3\u30b9\u30c8\u3002C++\u3067\u3044\u3046\u3068\u3053\u308d\u306ereinterpret_cast\u3002 \u5f37\u5236\u30ad\u30e3\u30b9\u30c8\u306a\u306e\u3067\u5b9f\u884c\u6642\u30a8\u30e9\u30fc\u3092\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002 as? C++\u3067\u3044\u3046\u3068\u3053\u308d\u306edynamic_cast\u3002 \u30ad\u30e3\u30b9\u30c8\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u306fnil\u3092\u8fd4\u3059\u3002 \u3068\u308a\u3042\u3048\u305a\u3056\u3063\u304f\u308a\u3068C++\u30d7\u30ed\u30b0\u30e9\u30de\u5411\u3051\u306e\u5bfe\u6bd4\u3002","version":"1.0","author_name":"albel06","type":"rich","url":"https://albel06.hatenablog.com/entry/2017/11/20/233146","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Falbel06.hatenablog.com%2Fentry%2F2017%2F11%2F20%2F233146\" title=\"Swift - \u30c0\u30a6\u30f3\u30ad\u30e3\u30b9\u30c8(as, as!, as?) - \u3042\u308b\u3079\u308b\u306eIT\u95a2\u9023\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://albel06.hatenablog.com/","title":"Swift - \u30c0\u30a6\u30f3\u30ad\u30e3\u30b9\u30c8(as, as!, as?)","categories":[]}