{"id":2014,"date":"2011-02-10T23:43:57","date_gmt":"2011-02-10T14:43:57","guid":{"rendered":"http:\/\/www.moonmile.net\/blog\/archives\/2014"},"modified":"2011-02-11T00:41:43","modified_gmt":"2011-02-10T15:41:43","slug":"%e3%82%a2%e3%83%aa%e3%82%b9%e3%81%af%e3%83%97%e3%83%a9%e3%83%80%e3%81%ae%e9%9e%84%e3%82%92%e8%92%90%e9%9b%86%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"http:\/\/www.moonmile.net\/blog\/archives\/2014","title":{"rendered":"\u30a2\u30ea\u30b9\u306f\u30d7\u30e9\u30c0\u306e\u9784\u3092\u8490\u96c6\u3059\u308b"},"content":{"rendered":"

\n\u81ea\u5206\u3067\u3082\u4e3b\u65e8\u304c\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u3051\u308c\u3069\u3082\u30a2\u30ea\u30d7\u30e9\u30b7\u30ea\u30fc\u30ba\u306e\u7d9a\u304d\u3002\u30a2\u30ea\u30b9\u30fb\u30a4\u30f3\u30fb\u30ef\u30f3\u30c0\u30fc\u30e9\u30f3\u30c9\u3068\u30d7\u30e9\u30c0\u3092\u7740\u305f\u60aa\u9b54\u306b\u4f3c\u3066\u3044\u308b\u3088\u3046\u306a\u4f3c\u3066\u306a\u3044\u3088\u3046\u306a…\u3068\u3044\u3046\u95a2\u4fc2\u306f\u5f8c\u4ed8\u3051\u3067\u3002\n<\/p>\n

\n\u30a2\u30ea\u30b9\u306b Prada \u3092\u30d7\u30ec\u30bc\u30f3\u30c8\u3059\u308b\u3068\u8cb0\u3046\u3051\u3069\u3001Tiffany \u3092\u30d7\u30ec\u30bc\u30f3\u30c8\u3057\u3066\u3082\u8cb0\u308f\u306a\u3044\u3001\u3063\u3066\u306e\u304c\u6b21\u306e\u30b3\u30fc\u30c9\u3067\u3059\u3002Prada \u3068 Tiffany \u306e\u30af\u30e9\u30b9\u3092\u4e00\u5ea6 dynamic_cast \u3057\u3066\u307f\u3066\u30c1\u30a7\u30c3\u30af\u3059\u308b\u8a33\u3067\u3059\u306d\u3002\n<\/p>\n

\n\/\/ for \u30a2\u30ea\u30b9\u306f\u30d7\u30e9\u30c0\u306e\u9784\u3092\u8490\u96c6\u3059\u308b\n#include <iostream>\n#include <list>\nusing namespace std;\n\nclass Bag {\nprotected:\n\tbool used;\npublic:\n\tvirtual bool getUsed() { return used; }  \n\tvirtual void Used() { this->used = true; }  \n};\n\nclass Prada : public Bag {};\nclass Tiffany : public Bag {};\n\nclass Alice\n{\nprivate:\n\tlist<Bag*> bags;\npublic:\n\tAlice() {\n\t}\n\tvoid Present( Bag *bag ) \n\t{\n\t\tif ( dynamic_cast<Prada*>(bag) != NULL ) \n\t\t{\n\t\t\tbags.push_back( bag );\n\t\t}\n\t}\n\tint CountBags() \n\t{\n\t\treturn bags.size();\n\t}\n};\n\nint main(void)\n{\n\tAlice alice;\n\t\n\tcout << &quot;alice has &quot; << alice.CountBags() << &quot; bags.&quot; << endl;\n\talice.Present(new Prada());\n\tcout << &quot;alice has &quot; << alice.CountBags() << &quot; bags.&quot; << endl;\n\talice.Present(new Tiffany()); \/\/ \u2605\n\tcout << &quot;alice has &quot; << alice.CountBags() << &quot; bags.&quot; << endl;\n\talice.Present(new Prada());\n\tcout << &quot;alice has &quot; << alice.CountBags() << &quot; bags.&quot; << endl;\n\n\treturn 0;\n}\n<\/pre>\n
\n\u5b9f\u884c\u3059\u308b\u3068\u3053\u3093\u306a\u611f\u3058\u3002\n<\/p>\n
\nD:\\work\\blog\\src\\alice>a\nalice has 0 bags.\nalice has 1 bags.\nalice has 1 bags. \u2605\nalice has 2 bags.\n<\/pre>\n
\n3\u756a\u76ee\u306b Tiffany \u3092\u30d7\u30ec\u30bc\u30f3\u30c8\u3057\u3066\u3044\u307e\u3059\u304c\u53d7\u3051\u53d6\u3063\u3066\u8cb0\u3048\u307e\u305b\u3093\u3002\u8d05\u6ca2\u8005\u3067\u3059\u3002\n<\/p>\n
\n\u4e00\u65b9\u3067\u3001\u9784\u306a\u3089\u306a\u3093\u3067\u3082\u53d7\u3051\u53d6\u308b\u3051\u3069\u3001\u898b\u305b\u308b\u3068\u304d\u306f Prada \u3060\u3051\u3001\u3068\u3044\u3046\u306e\u304c\u30ed\u30ea\u30fc\u30bf\u3067\u3059\u3002\n<\/p>\n
\n\/\/ for \u30ed\u30ea\u30fc\u30bf\u306f\u30d7\u30e9\u30c0\u306e\u9784\u3060\u3051\u3092\u898b\u305b\u308b\n#include <iostream>\n#include <list>\nusing namespace std;\n\nclass Bag {\nprotected:\n\tbool used;\npublic:\n\tvirtual bool getUsed() { return used; }  \n\tvirtual void Used() { this->used = true; }  \n};\n\nclass Prada : public Bag {};\nclass Tiffany : public Bag {};\n\nclass Lolita\n{\nprivate:\n\tlist<Bag*> bags;\npublic:\n\tvoid Present( Bag *bag ) \n\t{\n\t\tbags.push_back( bag );\n\t}\n\tlist<Bag*> LookBags() \n\t{\n\t\tlist<Bag*> temp;\n\t\tfor ( list<Bag*>::iterator it = bags.begin(); it != bags.end();  ++it ) {\n\t\t\tif ( dynamic_cast<Prada*>(*it) != NULL ) {\n\t\t\t\ttemp.push_back(*it);\n\t\t\t}\n\t\t}\n\t\treturn temp;\n\t}\n};\n\nint main(void)\n{\n\tLolita lolita;\n\t\n\tcout << &quot;lolita has &quot; << lolita.LookBags().size() << &quot; bags.&quot; << endl;\n\tlolita.Present(new Prada());\n\tcout << &quot;lolita has &quot; << lolita.LookBags().size() << &quot; bags.&quot; << endl;\n\tlolita.Present(new Tiffany());\n\tcout << &quot;lolita has &quot; << lolita.LookBags().size() << &quot; bags.&quot; << endl;\n\tlolita.Present(new Prada());\n\tcout << &quot;lolita has &quot; << lolita.LookBags().size() << &quot; bags.&quot; << endl;\n\n\treturn 0;\n}\n<\/pre>\n
\nD:\\work\\blog\\src\\alice>a\nlolita has 0 bags.\nlolita has 1 bags.\nlolita has 1 bags.\nlolita has 2 bags.\n<\/pre>\n
\n\u30ed\u30ea\u30fc\u30bf\u306e\u5834\u5408\u306f\u3001Present \u3055\u308c\u305f\u9784\u306f bags \u306b\u305f\u3081\u8fbc\u3080\u3051\u3069\u3001\u3044\u3056 LookBags \u3067\u898b\u305b\u3066\u3082\u3089\u3046\u3068\u3001Prada \u306b\u4e00\u81f4\u3059\u308b\u3082\u306e\u3057\u304b\u898b\u305b\u307e\u305b\u3093\u3002\n<\/p>\n
\n\u3053\u306e\u30af\u30e9\u30b9\u3092\u5224\u5225\u3059\u308b\u65b9\u6cd5\u3067\u3059\u304c\u3001C# \u3060\u3068 \u5909\u6570\u540d as \u30af\u30e9\u30b9\u540d \u3067\u30ad\u30e3\u30b9\u30c8\u3092\u3057\u3066\u30c1\u30a7\u30c3\u30af\u304c\u3067\u304d\u307e\u3059\u3002\u4ed6\u306b\u3082 GetType \u306a\u308a\u3067\u30c1\u30a7\u30c3\u30af\u3059\u308b\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002
\n\u3053\u3053\u3067\u9762\u767d\u3044\u306e\u306f\u3001\u30af\u30e9\u30b9\u540d\u304c\u30af\u30e9\u30b9\u306e\u5c5e\u6027\u306e\u3072\u3068\u3064<\/b>\u3068\u306a\u3063\u3066\u3044\u308b\u3068\u3053\u308d\u3067\u3001Prada \u30af\u30e9\u30b9\u304b Tiffany \u30af\u30e9\u30b9\u3067\u4f5c\u3089\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u5224\u5225\u3059\u308b\u306e\u306b\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5c5e\u6027\u3067\u306f\u306a\u304f\u3001\u30af\u30e9\u30b9\u305d\u306e\u3082\u306e\u306e\u5c5e\u6027\u3068\u3044\u3046\u306e\u304c\u30df\u30bd\u3067\u3059\u306d\u3002\n<\/p>\n
\n\u4f8b\u3048\u3070\u3001JUnit \u3067\u306f Test \u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u3092\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u3067\u62fe\u3046\u8a33\u3067\u3059\u304c\u3001C# \u3060\u3068 [TestCase] \u3068\u3044\u3046\u5f62\u3067\u5c5e\u6027\u3092\u4e0e\u3048\u307e\u3059\u3002\u305d\u306e\u6614\u306f\u3053\u306e\u3088\u3046\u306a\u8003\u3048\u65b9\u304c\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u30af\u30e9\u30b9\u3092\u5224\u5225\u3059\u308b\u3068\u304d\u306f\u660e\u793a\u7684\u306b\u30af\u30e9\u30b9\u540d\u3092 protected \u5909\u6570\u306a\u3069\u3067\u8a2d\u5b9a\u3057\u305f\u306e\u3067\u3059\u3002\n<\/p>\n
\nclass Prada {\nprotected:\n  char *classname = "Prada";\npublic:\n  ...\n};\n<\/pre>\n
\n\u3053\u3093\u306a\u611f\u3058\u3067\u3002\u305d\u3046\u3001CakePHP \u3067\u81ea\u524d\u306e\u30af\u30e9\u30b9\u540d\u3092\u6307\u5b9a\u3057\u3066\u3044\u308b(PHP4\u5bfe\u7b56\u3060\u305d\u3046\u3067\u3059)\u3092\u898b\u3066\u3001\u305d\u3093\u306a\u3053\u3068\u3092\u8003\u3048\u305f\u308a\u3057\u307e\u3057\u305f\u3002UML \u3067\u4e91\u3048\u3070\u3001\u30af\u30e9\u30b9\u5909\u6570<\/b>\u3068\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u5909\u6570<\/b>\u3068\u3044\u3046\u9055\u3044\u3060\u3063\u305f\u308a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u81ea\u5206\u3067\u3082\u4e3b\u65e8\u304c\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u3051\u308c\u3069\u3082\u30a2\u30ea\u30d7\u30e9\u30b7\u30ea\u30fc\u30ba\u306e\u7d9a\u304d\u3002\u30a2\u30ea\u30b9\u30fb\u30a4\u30f3\u30fb\u30ef\u30f3\u30c0\u30fc\u30e9\u30f3\u30c9\u3068\u30d7\u30e9\u30c0\u3092\u7740\u305f\u60aa\u9b54\u306b\u4f3c\u3066\u3044\u308b\u3088\u3046\u306a\u4f3c\u3066\u306a\u3044\u3088\u3046\u306a…\u3068\u3044\u3046\u95a2\u4fc2\u306f\u5f8c\u4ed8\u3051\u3067\u3002 \u30a2\u30ea\u30b9\u306b Prada \u3092\u30d7\u30ec\u30bc\u30f3\u30c8\u3059\u308b\u3068\u8cb0\u3046\u3051 … \u7d9a\u304d\u3092\u8aad\u3080 →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[22],"tags":[],"class_list":["post-2014","post","type-post","status-publish","format-standard","hentry","category-c"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/2014","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/comments?post=2014"}],"version-history":[{"count":1,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/2014\/revisions"}],"predecessor-version":[{"id":2019,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/posts\/2014\/revisions\/2019"}],"wp:attachment":[{"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/media?parent=2014"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/categories?post=2014"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.moonmile.net\/blog\/wp-json\/wp\/v2\/tags?post=2014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}