{"id":2046,"date":"2025-03-24T08:48:28","date_gmt":"2025-03-23T23:48:28","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=2046"},"modified":"2025-03-24T08:48:53","modified_gmt":"2025-03-23T23:48:53","slug":"c-override%e3%82%ad%e3%83%bc%e3%83%af%e3%83%bc%e3%83%89%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9a%e5%ae%9f%e8%b7%b5%e7%9a%84%e3%81%aa%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%a85%e3%81%a4","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=2046","title":{"rendered":"C++ override\u30ad\u30fc\u30ef\u30fc\u30c9\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a\u5b9f\u8df5\u7684\u306a\u4f7f\u3044\u65b9\u30685\u3064\u306e\u91cd\u8981\u30dd\u30a4\u30f3\u30c8"},"content":{"rendered":"\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">C++ override \u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u57fa\u790e\u77e5\u8b58<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">override \u30ad\u30fc\u30ef\u30fc\u30c9\u304c\u89e3\u6c7a\u3059\u308b\u7d99\u627f\u306e\u554f\u984c<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">C++11 \u3067\u5c0e\u5165\u3055\u308c\u305f\u7406\u7531\u3068\u80cc\u666f<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">override\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u6b63\u3057\u3044\u4f7f\u3044\u65b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">\u57fa\u672c\u7684\u306a\u69cb\u6587\u3068\u5b9f\u88c5\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-5\">virtual\u95a2\u6570\u3068\u306e\u95a2\u4fc2\u6027<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-6\">\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u30c1\u30a7\u30c3\u30af\u306e\u30e1\u30ea\u30c3\u30c8<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-7\">\u5b9f\u8df5\u7684\u306a\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-8\">\u591a\u91cd\u7d99\u627f\u3067\u306e\u6ce8\u610f\u70b9<\/a>      <\/li>      <li>        <a href=\"#i-9\">\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u3068\u4f75\u7528\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-10\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff\u3068\u6700\u9069\u5316<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-11\">override\u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u3088\u308b\u30d0\u30b0\u9632\u6b62<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-12\">\u3088\u304f\u3042\u308b\u5b9f\u88c5\u30df\u30b9\u3068\u305d\u306e\u56de\u907f\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-13\">\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u8aad\u307f\u65b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-14\">\u30c7\u30d0\u30c3\u30b0\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-15\">\u30e2\u30c0\u30f3C++\u306b\u304a\u3051\u308b\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-16\">\u30af\u30ea\u30fc\u30f3\u306a\u7d99\u627f\u306e\u8a2d\u8a08\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-17\">\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3067\u306e\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-18\">\u5c06\u6765\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u6226\u7565\u5b9f\u88c5<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">C++ override \u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u57fa\u790e\u77e5\u8b58<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">override \u30ad\u30fc\u30ef\u30fc\u30c9\u304c\u89e3\u6c7a\u3059\u308b\u7d99\u627f\u306e\u554f\u984c<\/h3>\n\n\n\n<p>C++\u3067\u306e\u7d99\u627f\u306b\u304a\u3044\u3066\u3001\u57fa\u5e95\u30af\u30e9\u30b9\u306e\u4eee\u60f3\u95a2\u6570\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u969b\u306b\u767a\u751f\u3057\u304c\u3061\u306a\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002override\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u3053\u308c\u3089\u306e\u554f\u984c\u3092\u52b9\u679c\u7684\u306b\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u5c0e\u5165\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u72b6\u6cc1\u3067\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual void process(int value) { \/* \u51e6\u7406 *\/ }\n};\n\nclass Derived : public Base {\npublic:\n    \/\/ \u30bf\u30a4\u30d7\u30df\u30b9\uff01 \u5b9f\u969b\u306b\u306f\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3055\u308c\u3066\u3044\u306a\u3044\n    virtual void Process(int value) { \/* \u7570\u306a\u308b\u51e6\u7406 *\/ }\n\n    \/\/ \u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u578b\u304c\u7570\u306a\u308b\uff01\n    virtual void process(long value) { \/* \u7570\u306a\u308b\u51e6\u7406 *\/ }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30b3\u30fc\u30c9\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u306e\u610f\u56f3\uff08\u57fa\u5e95\u30af\u30e9\u30b9\u306e\u95a2\u6570\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\uff09\u3068\u306f\u7570\u306a\u308b\u52d5\u4f5c\u3092\u3057\u307e\u3059\u304c\u3001\u5f93\u6765\u306eC++\u3067\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u30a8\u30e9\u30fc\u3068\u3057\u3066\u691c\u51fa\u3055\u308c\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">C++11 \u3067\u5c0e\u5165\u3055\u308c\u305f\u7406\u7531\u3068\u80cc\u666f<\/h3>\n\n\n\n<p>C++11\u3067override\u30ad\u30fc\u30ef\u30fc\u30c9\u304c\u5c0e\u5165\u3055\u308c\u305f\u4e3b\u306a\u7406\u7531\u306f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b89\u5168\u6027\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u610f\u56f3\u3057\u306a\u3044\u95a2\u6570\u306e\u30b7\u30b0\u30cb\u30c1\u30e3\u306e\u9055\u3044\u3092\u691c\u51fa<\/li>\n\n\n\n<li>\u30bf\u30a4\u30d7\u30df\u30b9\u306b\u3088\u308b\u30d0\u30b0\u306e\u65e9\u671f\u767a\u898b<\/li>\n\n\n\n<li>\u7d99\u627f\u95a2\u4fc2\u306e\u660e\u78ba\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3055\u308c\u305f\u95a2\u6570\u3092\u660e\u793a\u7684\u306b\u793a\u3059<\/li>\n\n\n\n<li>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u306e\u5411\u4e0a<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u306e\u52b9\u7387\u5316<\/li>\n<\/ul>\n\n\n\n<p>override\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u305f\u6b63\u3057\u3044\u5b9f\u88c5\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual void process(int value) { \/* \u51e6\u7406 *\/ }\n};\n\nclass Derived : public Base {\npublic:\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u304c\u30c1\u30a7\u30c3\u30af\u3092\u884c\u3046\n    void process(int value) override { \/* \u51e6\u7406 *\/ }\n};<\/pre>\n\n\n\n<p>\u3053\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u5c0e\u5165\u306b\u3088\u308a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u30c1\u30a7\u30c3\u30af\u304c\u5f37\u5316\u3055\u308c\u3001\u30a8\u30e9\u30fc\u3092\u65e9\u671f\u306b\u767a\u898b\u3067\u304d\u308b<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u304c\u660e\u78ba\u306b\u306a\u308a\u3001\u53ef\u8aad\u6027\u304c\u5411\u4e0a\u3059\u308b<\/li>\n\n\n\n<li>\u4fdd\u5b88\u6027\u304c\u9ad8\u307e\u308a\u3001\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u304c\u5bb9\u6613\u306b\u306a\u308b<\/li>\n<\/ul>\n\n\n\n<p>override\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001C++11\u4ee5\u964d\u306e\u30e2\u30c0\u30f3\u306aC++\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3092\u5411\u4e0a\u3055\u305b\u308b\u91cd\u8981\u306a\u6a5f\u80fd\u306e\u4e00\u3064\u3068\u3057\u3066\u8a8d\u8b58\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">override\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u6b63\u3057\u3044\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">\u57fa\u672c\u7684\u306a\u69cb\u6587\u3068\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<p>override\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u69cb\u6587\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u304c\u3001\u6b63\u3057\u304f\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u30eb\u30fc\u30eb\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u57fa\u672c\u7684\u306a\u69cb\u6587\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual void method() { \/* ... *\/ }    \/\/ \u57fa\u5e95\u30af\u30e9\u30b9\u3067\u4eee\u60f3\u95a2\u6570\u3092\u5ba3\u8a00\n};\n\nclass Derived : public Base {\npublic:\n    void method() override { \/* ... *\/ }   \/\/ \u6d3e\u751f\u30af\u30e9\u30b9\u3067\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\n};<\/pre>\n\n\n\n<p>\u5b9f\u88c5\u6642\u306e\u91cd\u8981\u306a\u30eb\u30fc\u30eb\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u623b\u308a\u5024\u306e\u578b\u4e00\u81f4<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual int calculate() { return 0; }\n};\n\nclass Derived : public Base {\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1a\u623b\u308a\u5024\u306e\u578b\u304c\u4e00\u81f4\u3057\u306a\u3044\n    double calculate() override { return 0.0; }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u5f15\u6570\u30ea\u30b9\u30c8\u306e\u5b8c\u5168\u4e00\u81f4<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual void process(int value, bool flag = true) { }\n};\n\nclass Derived : public Base {\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1a\u30c7\u30d5\u30a9\u30eb\u30c8\u5f15\u6570\u304c\u7570\u306a\u3063\u3066\u3044\u3066\u3082\u3088\u3044\u304c\u3001\n    \/\/ \u5f15\u6570\u306e\u578b\u3068\u6570\u306f\u5b8c\u5168\u306b\u4e00\u81f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\n    void process(int value) override { }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">virtual\u95a2\u6570\u3068\u306e\u95a2\u4fc2\u6027<\/h3>\n\n\n\n<p>override\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001virtual\u95a2\u6570\u3068\u306e\u5bc6\u63a5\u306a\u95a2\u4fc2\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    \/\/ \u57fa\u5e95\u30af\u30e9\u30b9\u3067virtual\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u5fc5\u9808\n    virtual void mustOverride() = 0;  \/\/ \u7d14\u7c8b\u4eee\u60f3\u95a2\u6570\n    virtual void canOverride() { }    \/\/ \u901a\u5e38\u306e\u4eee\u60f3\u95a2\u6570\n    void cantOverride() { }          \/\/ \u975e\u4eee\u60f3\u95a2\u6570\n};\n\nclass Derived : public Base {\npublic:\n    \/\/ OK: \u7d14\u7c8b\u4eee\u60f3\u95a2\u6570\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\n    void mustOverride() override { }\n\n    \/\/ OK: \u901a\u5e38\u306e\u4eee\u60f3\u95a2\u6570\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\n    void canOverride() override { }\n\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc: \u975e\u4eee\u60f3\u95a2\u6570\u306f\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u304d\u306a\u3044\n    void cantOverride() override { }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u30c1\u30a7\u30c3\u30af\u306e\u30e1\u30ea\u30c3\u30c8<\/h3>\n\n\n\n<p>override\u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u3088\u308b\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u30c1\u30a7\u30c3\u30af\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u91cd\u8981\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b7\u30b0\u30cb\u30c1\u30e3\u306e\u4e0d\u4e00\u81f4\u691c\u51fa<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual void process(int value) const { }\n};\n\nclass Derived : public Base {\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1aconst\u304c\u6b20\u843d\u3057\u3066\u3044\u308b\n    void process(int value) override { }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30b9\u30da\u30eb\u30df\u30b9\u306e\u691c\u51fa<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual void initialize() { }\n};\n\nclass Derived : public Base {\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1a\u30e1\u30bd\u30c3\u30c9\u540d\u306e\u30b9\u30da\u30eb\u30df\u30b9\n    void initialise() override { }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30c1\u30a7\u30c3\u30af\u306b\u3088\u308a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u958b\u767a\u521d\u671f\u6bb5\u968e\u3067\u306e\u30d0\u30b0\u767a\u898b<\/li>\n\n\n\n<li>\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u6642\u306e\u5b89\u5168\u6027\u78ba\u4fdd<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u306e\u8ca0\u8377\u8efd\u6e1b<\/li>\n<\/ul>\n\n\n\n<p>override\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u4f7f\u7528\u306f\u3001\u7279\u306b\u5927\u898f\u6a21\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3084\u8907\u96d1\u306a\u7d99\u627f\u968e\u5c64\u3092\u6301\u3064\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u306b\u304a\u3044\u3066\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3068\u4fdd\u5b88\u6027\u3092\u5927\u304d\u304f\u5411\u4e0a\u3055\u305b\u308b\u52b9\u679c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-7\">\u5b9f\u8df5\u7684\u306a\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u591a\u91cd\u7d99\u627f\u3067\u306e\u6ce8\u610f\u70b9<\/h3>\n\n\n\n<p>C++\u306e\u591a\u91cd\u7d99\u627f\u74b0\u5883\u3067override\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u7279\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Interface1 {\npublic:\n    virtual void process() = 0;\n};\n\nclass Interface2 {\npublic:\n    virtual void process() = 0;\n};\n\nclass MultiDerived : public Interface1, public Interface2 {\npublic:\n    \/\/ \u66d6\u6627\u3055\u3092\u89e3\u6d88\u3059\u308b\u305f\u3081\u3001using\u5ba3\u8a00\u304c\u5fc5\u8981\n    using Interface1::process;\n    using Interface2::process;\n\n    \/\/ \u4e21\u65b9\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u95a2\u6570\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\n    void process() override {\n        \/\/ \u5b9f\u88c5\n    }\n};<\/pre>\n\n\n\n<p>\u591a\u91cd\u7d99\u627f\u3067\u306e\u4e3b\u306a\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u540d\u524d\u306e\u885d\u7a81\u3092\u9069\u5207\u306b\u89e3\u6c7a\u3059\u308b<\/li>\n\n\n\n<li>\u4eee\u60f3\u7d99\u627f\u306e\u5fc5\u8981\u6027\u3092\u691c\u8a0e\u3059\u308b<\/li>\n\n\n\n<li>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u968e\u5c64\u306e\u8a2d\u8a08\u3092\u614e\u91cd\u306b\u884c\u3046<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u3068\u4f75\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u3068override\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u67d4\u8edf\u3067\u578b\u5b89\u5168\u306a\u5b9f\u88c5\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T&gt;\nclass ProcessorBase {\npublic:\n    \/\/ \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\n    void execute() {\n        preProcess();\n        process(static_cast&lt;T*&gt;(this));\n        postProcess();\n    }\n\nprotected:\n    virtual void preProcess() { }\n    virtual void process(T* derived) = 0;\n    virtual void postProcess() { }\n};\n\nclass ConcreteProcessor : public ProcessorBase&lt;ConcreteProcessor&gt; {\nprotected:\n    \/\/ \u5177\u4f53\u7684\u306a\u51e6\u7406\u306e\u5b9f\u88c5\n    void preProcess() override {\n        \/\/ \u524d\u51e6\u7406\n    }\n\n    void process(ConcreteProcessor* self) override {\n        \/\/ \u30e1\u30a4\u30f3\u51e6\u7406\n    }\n\n    void postProcess() override {\n        \/\/ \u5f8c\u51e6\u7406\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff\u3068\u6700\u9069\u5316<\/h3>\n\n\n\n<p>override\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u4f7f\u7528\u81ea\u4f53\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u305b\u3093\u304c\u3001\u4eee\u60f3\u95a2\u6570\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306b\u95a2\u9023\u3059\u308b\u6700\u9069\u5316\u306b\u3064\u3044\u3066\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4eee\u60f3\u95a2\u6570\u30c6\u30fc\u30d6\u30eb\uff08vtable\uff09\u306e\u5f71\u97ff<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual void heavyProcess() { \/* ... *\/ }\n};\n\nclass Derived : public Base {\npublic:\n    void heavyProcess() override {\n        \/\/ \u4eee\u60f3\u95a2\u6570\u547c\u3073\u51fa\u3057\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\n        \/\/ vtable\u3092\u7d4c\u7531\u3059\u308b\u305f\u3081\u3001\u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u304c\u56f0\u96e3\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    \/\/ final\u6307\u5b9a\u306b\u3088\u308a\u3001\u3053\u308c\u4ee5\u4e0a\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3092\u7981\u6b62\n    virtual void criticalMethod() final {\n        \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u91cd\u8981\u306a\u51e6\u7406\n    }\n\n    \/\/ \u975e\u4eee\u60f3\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u30d1\u30bf\u30fc\u30f3\n    void process() {\n        \/\/ \u5171\u901a\u306e\u524d\u51e6\u7406\n        doProcess();  \/\/ \u4eee\u60f3\u95a2\u6570\u547c\u3073\u51fa\u3057\n        \/\/ \u5171\u901a\u306e\u5f8c\u51e6\u7406\n    }\n\nprotected:\n    virtual void doProcess() = 0;\n};<\/pre>\n\n\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4eee\u60f3\u95a2\u6570\u306e\u547c\u3073\u51fa\u3057\u30b3\u30b9\u30c8\u3092\u8003\u616e\u3059\u308b<\/li>\n\n\n\n<li>\u983b\u7e41\u306b\u547c\u3073\u51fa\u3055\u308c\u308b\u5c0f\u3055\u306a\u95a2\u6570\u306e\u4eee\u60f3\u5316\u3092\u907f\u3051\u308b<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u5834\u5408\u306ffinal\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b<\/li>\n\n\n\n<li>\u975e\u4eee\u60f3\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u30d1\u30bf\u30fc\u30f3\u306e\u6d3b\u7528\u3092\u691c\u8a0e\u3059\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u67d4\u8edf\u306a\u30b3\u30fc\u30c9\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u3001\u5fc5\u8981\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-11\">override\u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u3088\u308b\u30d0\u30b0\u9632\u6b62<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u3088\u304f\u3042\u308b\u5b9f\u88c5\u30df\u30b9\u3068\u305d\u306e\u56de\u907f\u65b9\u6cd5<\/h3>\n\n\n\n<p>override\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u3088\u304f\u767a\u751f\u3059\u308b\u5b9f\u88c5\u30df\u30b9\u3068\u3001\u305d\u306e\u56de\u907f\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b7\u30b0\u30cb\u30c1\u30e3\u306e\u4e0d\u4e00\u81f4<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual int process(const std::string&amp; data) { return 0; }\n};\n\nclass Derived : public Base {\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1aconst\u4fee\u98fe\u5b50\u306e\u6b20\u843d\n    int process(std::string&amp; data) override { return 1; }\n\n    \/\/ \u6b63\u3057\u3044\u5b9f\u88c5\n    int process(const std::string&amp; data) override { return 1; }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30a2\u30af\u30bb\u30b9\u6307\u5b9a\u5b50\u306e\u8aa4\u308a<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\nprotected:  \/\/ protected\u30e1\u30f3\u30d0\u95a2\u6570\n    virtual void internalProcess() { }\n};\n\nclass Derived : public Base {\npublic:     \/\/ \u30a2\u30af\u30bb\u30b9\u6307\u5b9a\u5b50\u306e\u5909\u66f4\u306f\u53ef\u80fd\n    void internalProcess() override { }\n};<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u975e\u4eee\u60f3\u95a2\u6570\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u8a66\u884c<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    void normalMethod() { }  \/\/ \u975e\u4eee\u60f3\u95a2\u6570\n};\n\nclass Derived : public Base {\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1a\u975e\u4eee\u60f3\u95a2\u6570\u306f\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u304d\u306a\u3044\n    void normalMethod() override { }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u8aad\u307f\u65b9<\/h3>\n\n\n\n<p>\u4e3b\u8981\u306a\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u30d1\u30bf\u30fc\u30f3\u3068\u5bfe\u51e6\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ GCC\u306e\u5834\u5408\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u4f8b\nclass Base {\n    virtual void method(int x) { }\n};\n\nclass Derived : public Base {\n    void method(double x) override { }  \/\/ \u578b\u4e0d\u4e00\u81f4\u30a8\u30e9\u30fc\n};\n\/* \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8:\n   'virtual void Derived::method(double)' marked override, \n   but does not override any member function *\/<\/pre>\n\n\n\n<p>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u4e3b\u306a\u30d1\u30bf\u30fc\u30f3\uff1a<\/p>\n\n\n<div id=\"id-2b4178ba-74b2-4828-9109-99044e47f06b\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30a8\u30e9\u30fc\u30d1\u30bf\u30fc\u30f3<\/th><th>\u539f\u56e0<\/th><th>\u5bfe\u51e6\u65b9\u6cd5<\/th><\/tr><\/thead><tbody><tr><td>\u201cdoes not override\u201d<\/td><td>\u30b7\u30b0\u30cb\u30c1\u30e3\u306e\u4e0d\u4e00\u81f4<\/td><td>\u57fa\u5e95\u30af\u30e9\u30b9\u306e\u95a2\u6570\u30b7\u30b0\u30cb\u30c1\u30e3\u3092\u78ba\u8a8d<\/td><\/tr><tr><td>\u201cis not virtual\u201d<\/td><td>\u57fa\u5e95\u30af\u30e9\u30b9\u306e\u95a2\u6570\u304c\u975e\u4eee\u60f3<\/td><td>virtual\u6307\u5b9a\u3092\u78ba\u8a8d<\/td><\/tr><tr><td>\u201cdifferent access\u201d<\/td><td>\u30a2\u30af\u30bb\u30b9\u6307\u5b9a\u5b50\u306e\u77db\u76fe<\/td><td>\u30a2\u30af\u30bb\u30b9\u6307\u5b9a\u5b50\u306e\u898b\u76f4\u3057<\/td><\/tr><tr><td>\u201cwrong number of arguments\u201d<\/td><td>\u5f15\u6570\u306e\u6570\u306e\u4e0d\u4e00\u81f4<\/td><td>\u5f15\u6570\u30ea\u30b9\u30c8\u306e\u78ba\u8a8d<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u30c7\u30d0\u30c3\u30b0\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9759\u7684\u89e3\u6790\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u3067\u691c\u51fa\u3055\u308c\u308b\u554f\u984c\u4f8b\nclass Base {\npublic:\n    virtual void process() const { }\n};\n\nclass Derived : public Base {\n    void process() override { }  \/\/ constness\u9055\u53cd\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u5b9f\u884c\u6642\u30c7\u30d0\u30c3\u30b0\u306e\u65b9\u6cd5<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual void process() {\n        std::cout &lt;&lt; \"Base::process\" &lt;&lt; std::endl;\n    }\n};\n\nclass Derived : public Base {\n    void process() override {\n        \/\/ \u30c7\u30d0\u30c3\u30b0\u7528\u306e\u60c5\u5831\u51fa\u529b\n        std::cout &lt;&lt; \"Derived::process - \" \n                  &lt;&lt; __FUNCTION__ &lt;&lt; \" at \" \n                  &lt;&lt; __LINE__ &lt;&lt; std::endl;\n        Base::process();  \/\/ \u57fa\u5e95\u30af\u30e9\u30b9\u306e\u51e6\u7406\u3082\u5b9f\u884c\n    }\n};<\/pre>\n\n\n\n<p>\u30c7\u30d0\u30c3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6bb5\u968e\u7684\u306a\u30c6\u30b9\u30c8<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5404\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u95a2\u6570\u3092\u500b\u5225\u306b\u30c6\u30b9\u30c8<\/li>\n\n\n\n<li>\u7d99\u627f\u968e\u5c64\u306e\u5404\u30ec\u30d9\u30eb\u3067\u306e\u52d5\u4f5c\u78ba\u8a8d<\/li>\n\n\n\n<li>\u30a8\u30c3\u30b8\u30b1\u30fc\u30b9\u306e\u691c\u8a3c<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30c7\u30d0\u30c3\u30b0\u652f\u63f4\u30c4\u30fc\u30eb\u306e\u6d3b\u7528<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u8b66\u544a\u30ec\u30d9\u30eb\u3092\u6700\u5927\u306b\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u9759\u7684\u89e3\u6790\u30c4\u30fc\u30eb\u306e\u5c0e\u5165<\/li>\n\n\n\n<li>\u5358\u4f53\u30c6\u30b9\u30c8\u306e\u4f5c\u6210<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u65b9\u6cd5\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u95a2\u9023\u306e\u30d0\u30b0\u3092\u52b9\u679c\u7684\u306b\u9632\u6b62\u3057\u3001\u65e9\u671f\u306b\u767a\u898b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-15\">\u30e2\u30c0\u30f3C++\u306b\u304a\u3051\u308b\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u30af\u30ea\u30fc\u30f3\u306a\u7d99\u627f\u306e\u8a2d\u8a08\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30e2\u30c0\u30f3C++\u3067\u306e\u7d99\u627f\u8a2d\u8a08\u306b\u304a\u3044\u3066\u3001override\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3059\u308b\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u8a2d\u8a08\u306e\u539f\u5247<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u826f\u3044\u4f8b\uff1a\u660e\u78ba\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5b9a\u7fa9\nclass IProcessor {\npublic:\n    virtual ~IProcessor() = default;  \/\/ \u4eee\u60f3\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\n    virtual void process() = 0;       \/\/ \u7d14\u7c8b\u4eee\u60f3\u95a2\u6570\n    virtual bool isReady() const = 0; \/\/ const\u4fee\u98fe\u3055\u308c\u305f\u7d14\u7c8b\u4eee\u60f3\u95a2\u6570\n};\n\n\/\/ \u5b9f\u88c5\u30af\u30e9\u30b9\nclass ConcreteProcessor : public IProcessor {\npublic:\n    void process() override;\n    bool isReady() const override;\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>SOLID\u539f\u5247\u306e\u9069\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5358\u4e00\u8cac\u4efb\u306e\u539f\u5247\u3092\u5b88\u3063\u305f\u8a2d\u8a08\nclass ILogger {\npublic:\n    virtual ~ILogger() = default;\n    virtual void log(const std::string&amp; message) = 0;\n};\n\nclass IDataProcessor {\npublic:\n    virtual ~IDataProcessor() = default;\n    virtual void processData() = 0;\n};\n\n\/\/ \u8907\u6570\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\nclass DataManager : public IDataProcessor, public ILogger {\npublic:\n    void processData() override;\n    void log(const std::string&amp; message) override;\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3067\u306e\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8<\/h3>\n\n\n\n<p>\u52b9\u679c\u7684\u306a\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u306e\u305f\u3081\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7684\u306a\u30c1\u30a7\u30c3\u30af\u9805\u76ee<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3059\u3079\u3066\u306e\u4eee\u60f3\u95a2\u6570\u306boverride\u30ad\u30fc\u30ef\u30fc\u30c9\u304c\u4ed8\u3044\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li>\u57fa\u5e95\u30af\u30e9\u30b9\u306e\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u4eee\u60f3\u5316\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li>const\u4fee\u98fe\u5b50\u304c\u9069\u5207\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9ad8\u5ea6\u306a\u30c1\u30a7\u30c3\u30af\u9805\u76ee<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class Base {\npublic:\n    virtual ~Base() = default;\n\n    \/\/ final\u4fee\u98fe\u5b50\u306e\u9069\u5207\u306a\u4f7f\u7528\n    virtual void criticalMethod() final;\n\n    \/\/ const\u4fee\u98fe\u5b50\u306e\u4e00\u8cab\u3057\u305f\u4f7f\u7528\n    virtual int getData() const = 0;\n};\n\nclass Derived : public Base {\npublic:\n    \/\/ \u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306e\u9069\u5207\u306a\u4f7f\u7528\n    std::unique_ptr&lt;Resource&gt; getResource() override;\n\n    \/\/ \u4f8b\u5916\u4ed5\u69d8\u306e\u4e00\u8cab\u6027\n    void processData() noexcept override;\n\n    \/\/ \u53f3\u8fba\u5024\u53c2\u7167\u306e\u9069\u5207\u306a\u51e6\u7406\n    void handleData(std::string&amp;&amp; data) override;\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u5c06\u6765\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u6226\u7565\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u9577\u671f\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u3092\u8003\u616e\u3057\u305f\u5b9f\u88c5\u6226\u7565\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u62e1\u5f35\u6027\u3092\u8003\u616e\u3057\u305f\u8a2d\u8a08<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ \u5c06\u6765\u306e\u62e1\u5f35\u3092\u8003\u616e\u3057\u305f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\nclass IMessageHandler {\npublic:\n    virtual ~IMessageHandler() = default;\n\n    \/\/ \u57fa\u672c\u7684\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u51e6\u7406\n    virtual void handleMessage(const Message&amp; msg) = 0;\n\n    \/\/ \u30aa\u30d7\u30b7\u30e7\u30ca\u30eb\u306a\u6a5f\u80fd\n    virtual bool canHandle(const Message&amp; msg) { return true; }\n    virtual void preProcess(const Message&amp; msg) { }\n    virtual void postProcess(const Message&amp; msg) { }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d0\u30fc\u30b8\u30e7\u30cb\u30f3\u30b0\u3068\u306e\u7d71\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">namespace v1 {\n    class IProcessor {\n    public:\n        virtual void process() = 0;\n    };\n}\n\nnamespace v2 {\n    class IProcessor {\n    public:\n        virtual void process() = 0;\n        virtual void validate() = 0;  \/\/ \u65b0\u6a5f\u80fd\u8ffd\u52a0\n    };\n}<\/pre>\n\n\n\n<p>\u5b9f\u88c5\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u4fdd\u5b88\u6027\u306e\u30d0\u30e9\u30f3\u30b9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4eee\u60f3\u95a2\u6570\u306e\u4f7f\u7528\u3092\u5fc5\u8981\u306a\u7b87\u6240\u306b\u9650\u5b9a<\/li>\n\n\n\n<li>\u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u53ef\u80fd\u306a\u95a2\u6570\u306e\u8b58\u5225<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u6700\u9069\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c6\u30b9\u30c8\u5bb9\u6613\u6027\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\u3057\u3084\u3059\u3044\u8a2d\u8a08<\/li>\n\n\n\n<li>\u4f9d\u5b58\u6027\u6ce8\u5165\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u30ab\u30d0\u30ec\u30c3\u30b8\u306e\u7dad\u6301<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3<\/strong><\/li>\n<\/ol>\n\n\n\n<ul 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