{"version":"1.0","type":"rich","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/wata_d/","published":"2005-11-13 12:25:05","width":"100%","image_url":null,"blog_title":"\u9591\u53e4\u9ce5","blog_url":"https://www.little-cuckoo.jp/","provider_url":"https://hatena.blog","url":"https://www.little-cuckoo.jp/entry/20051113/1131852305","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.little-cuckoo.jp%2Fentry%2F20051113%2F1131852305\" title=\"\u554f\u984c\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u304b\u2026\u2026 - \u9591\u53e4\u9ce5\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","title":"\u554f\u984c\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u304b\u2026\u2026","author_name":"wata_d","description":"\u5c11\u3057\u8003\u3048\u3066\u307f\u307e\u3057\u305f\u304c\u3001\u3053\u308c\u306f\u3001\u3084\u3063\u3071\u308a\u7d20\u76f4\u306b\u4eee\u60f3\u95a2\u6570\u3092\u4f7f\u3046\u3079\u304d\u3067\u3059\u306d\u3002\u3082\u3046\u3072\u3068\u3064\u57fa\u5e95\u30af\u30e9\u30b9\u3092\u8a2d\u3051\u3066\u3001\u3068\u304b dynamic_cast \u3092\u4f7f\u3063\u3066\u3001\u306a\u3069\u8003\u3048\u307e\u3057\u305f\u304c\u3044\u305a\u308c\u3082 RTTI \u3092\u4f7f\u7528\u3059\u308b\u7fbd\u76ee\u306b\u306a\u308b\u308f\u3051\u3067\u3001\u305d\u308c\u306a\u3089\u6700\u521d\u304b\u3089\u4eee\u60f3\u95a2\u6570\u306b\u3057\u305f\u65b9\u304c\u89e3\u308a\u3084\u3059\u3044\u3002\u3057\u304b\u3057\u3001\u3053\u308c\u3060\u3051\u306a\u3089\u305d\u308c\u3067\u3044\u3044\u306e\u3067\u3059\u304c\u3001 Generic Visitor \u3092\u5b9f\u88c5\u3057\u305f\u3068\u304d\u306b\u3001 Concrete Element \u306e\u5404\u5177\u8c61\u30af\u30e9\u30b9\u3092\u4e00\u7dd2\u304f\u305f\u306b\u6271\u3044\u305f\u3044\u6642\u306b\u554f\u984c\u304c\u51fa\u3066\u3057\u307e\u3046\u306e\u3067\u3001\u4f55\u304b\u3046\u307e\u3044\u89e3\u6cd5\u3092\u898b\u3064\u3051\u305f\u3044\u306e\u3067\u3059\u3002","categories":["programming","C++"]}