{"id":1876,"date":"2025-03-24T08:49:44","date_gmt":"2025-03-23T23:49:44","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1876"},"modified":"2025-03-24T08:49:44","modified_gmt":"2025-03-23T23:49:44","slug":"%e3%80%90%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91c-switch%e3%81%ae%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%81%e5%9f%ba%e7%a4%8e%e3%81%8b%e3%82%89%e5%bf%9c%e7%94%a8%e3%81%be%e3%81%a75%e3%81%a4","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1876","title":{"rendered":"\u3010\u4fdd\u5b58\u7248\u3011C++ switch\u306e\u5b8c\u5168\u30ac\u30a4\u30c9\uff01\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u30675\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++ switch\u3068\u306f\uff1f\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b\u57fa\u790e\u77e5\u8b58<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">switch\u306e\u57fa\u672c\u69cb\u6587\u3068\u52d5\u4f5c\u539f\u7406<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">\u306a\u305cC++\u3067switch\u3092\u4f7f\u3046\u306e\u304b\uff1f\u305d\u306e\u91cd\u8981\u6027<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">switch\u3068if\u306e\u9055\u3044\u3092\u5fb9\u5e95\u89e3\u8aac<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03\u3067\u898b\u3048\u308bswitch\u306e\u771f\u4fa1<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-5\">\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u306b\u304a\u3051\u308b\u512a\u4f4d\u6027<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-6\">\u5b9f\u8df5\u7684\u306aswitch\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-7\">\u5217\u6319\u578b\uff08enum\uff09\u3068switch\u306e\u76f8\u6027\u306e\u826f\u3055<\/a>      <\/li>      <li>        <a href=\"#i-8\">\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u3092\u6d3b\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u6761\u4ef6\u5206\u5c90<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-9\">default\u53e5\u306e\u6226\u7565\u7684\u306a\u4f7f\u3044\u65b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-10\">\u30e2\u30c0\u30f3C++\u3067\u9032\u5316\u3057\u305fswitch\u6587<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-11\">C++17\u306eswitch\u6587\u306b\u304a\u3051\u308b\u521d\u671f\u5316\u69cb\u6587<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-12\">constexpr if\u3068\u306e\u4f7f\u3044\u5206\u3051<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-13\">switch\u306e\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u3068\u56de\u907f\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-14\">\u4e0d\u9069\u5207\u306a\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u306b\u3088\u308b\u30d0\u30b0<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-15\">\u904e\u5270\u306a\u30cd\u30b9\u30c8\u3092\u907f\u3051\u308b\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u624b\u6cd5<\/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++ switch\u3068\u306f\uff1f\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b\u57fa\u790e\u77e5\u8b58<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">switch\u306e\u57fa\u672c\u69cb\u6587\u3068\u52d5\u4f5c\u539f\u7406<\/h3>\n\n\n\n<p>C++\u306eswitch\u6587\u306f\u3001\u8907\u6570\u306e\u6761\u4ef6\u5206\u5c90\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3059\u308b\u305f\u3081\u306e\u5236\u5fa1\u69cb\u6587\u3067\u3059\u3002\u5358\u4e00\u306e\u5f0f\uff08\u901a\u5e38\u306f\u5909\u6570\uff09\u306e\u5024\u306b\u57fa\u3065\u3044\u3066\u3001\u8907\u6570\u306e\u51e6\u7406\u30d1\u30bf\u30fc\u30f3\u306e\u4e2d\u304b\u30891\u3064\u3092\u9078\u629e\u3057\u3066\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u57fa\u672c\u7684\u306a\u69cb\u6587\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\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=\"\">switch (\u5f0f) {\n    case \u5b9a\u65701:\n        \/\/ \u5f0f\u304c\u5b9a\u65701\u3068\u4e00\u81f4\u3057\u305f\u5834\u5408\u306e\u51e6\u7406\n        break;\n    case \u5b9a\u65702:\n        \/\/ \u5f0f\u304c\u5b9a\u65702\u3068\u4e00\u81f4\u3057\u305f\u5834\u5408\u306e\u51e6\u7406\n        break;\n    default:\n        \/\/ \u3069\u306ecase\u306b\u3082\u4e00\u81f4\u3057\u306a\u304b\u3063\u305f\u5834\u5408\u306e\u51e6\u7406\n        break;\n}<\/pre>\n\n\n\n<p>\u5177\u4f53\u7684\u306a\u4f7f\u7528\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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=\"\">\/\/ \u66dc\u65e5\u306b\u5fdc\u3058\u3066\u4e88\u5b9a\u3092\u8868\u793a\u3059\u308b\u4f8b\nenum class DayOfWeek { MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY };\n\nvoid showSchedule(DayOfWeek day) {\n    switch (day) {\n        case DayOfWeek::MONDAY:\n            std::cout &lt;&lt; \"\u671d\u4f1a\u3068\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30df\u30fc\u30c6\u30a3\u30f3\u30b0\" &lt;&lt; std::endl;\n            break;\n        case DayOfWeek::TUESDAY:\n            std::cout &lt;&lt; \"\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3068\u958b\u767a\u4f5c\u696d\" &lt;&lt; std::endl;\n            break;\n        case DayOfWeek::WEDNESDAY:\n            std::cout &lt;&lt; \"\u9031\u9593\u9032\u6357\u5831\u544a\" &lt;&lt; std::endl;\n            break;\n        case DayOfWeek::THURSDAY:\n            std::cout &lt;&lt; \"\u30da\u30a2\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\" &lt;&lt; std::endl;\n            break;\n        case DayOfWeek::FRIDAY:\n            std::cout &lt;&lt; \"\u9031\u672b\u30ec\u30d3\u30e5\u30fc\u3068\u632f\u308a\u8fd4\u308a\" &lt;&lt; std::endl;\n            break;\n        default:\n            std::cout &lt;&lt; \"\u4e88\u5b9a\u306a\u3057\" &lt;&lt; std::endl;\n            break;\n    }\n}<\/pre>\n\n\n\n<p>switch\u6587\u306e\u52d5\u4f5c\u539f\u7406\u3067\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5f0f\u306e\u8a55\u4fa1<\/strong>: switch\u306e\u62ec\u5f27\u5185\u306e\u5f0f\u306f\u4e00\u5ea6\u3060\u3051\u8a55\u4fa1\u3055\u308c\u307e\u3059<\/li>\n\n\n\n<li><strong>\u5b9a\u6570\u5024\u3068\u306e\u6bd4\u8f03<\/strong>: case\u6587\u306b\u306f\u5b9a\u6570\u5f0f\u306e\u307f\u4f7f\u7528\u53ef\u80fd\u3067\u3059<\/li>\n\n\n\n<li><strong>break\u6587\u306e\u91cd\u8981\u6027<\/strong>: break\u6587\u304c\u306a\u3044\u3068\u6b21\u306ecase\u6587\u3082\u5b9f\u884c\u3055\u308c\u308b\uff08\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\uff09<\/li>\n\n\n\n<li><strong>default\u53e5<\/strong>: \u3069\u306ecase\u306b\u3082\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306e\u51e6\u7406\u3092\u5b9a\u7fa9<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u306a\u305cC++\u3067switch\u3092\u4f7f\u3046\u306e\u304b\uff1f\u305d\u306e\u91cd\u8981\u6027<\/h3>\n\n\n\n<p>switch\u6587\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u91cd\u8981\u306a\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30e9\u306f\u30b8\u30e3\u30f3\u30d7\u30c6\u30fc\u30d6\u30eb\u3092\u751f\u6210\u3057\u3001O(1)\u306e\u6642\u9593\u8907\u96d1\u5ea6\u3067\u5206\u5c90\u51e6\u7406\u3092\u5b9f\u884c<\/li>\n\n\n\n<li>\u591a\u6570\u306e\u6761\u4ef6\u5206\u5c90\u3092\u542b\u3080\u5834\u5408\u3001if-else\u3088\u308a\u3082\u52b9\u7387\u7684<\/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>\u8907\u6570\u306e\u6761\u4ef6\u5206\u5c90\u3092\u6574\u7406\u3055\u308c\u305f\u5f62\u3067\u8a18\u8ff0\u53ef\u80fd<\/li>\n\n\n\n<li>\u610f\u56f3\u304c\u660e\u78ba\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u578b\u5b89\u5168\u6027\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>enum\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u4e0d\u6b63\u306a\u5024\u306e\u4f7f\u7528\u3092\u9632\u6b62<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6700\u9069\u5316\u306e\u6a5f\u4f1a<\/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=\"\">   \/\/ \u5024\u306e\u7bc4\u56f2\u306b\u57fa\u3065\u304f\u6700\u9069\u5316\u4f8b\n   switch (value) {\n       case 1: case 2: case 3:  \/\/ \u9023\u7d9a\u3057\u305f\u5024\u3092\u307e\u3068\u3081\u3066\u51e6\u7406\n           \/\/ \u5171\u901a\u306e\u51e6\u7406\n           break;\n       case 10: case 20:        \/\/ \u96e2\u6563\u7684\u306a\u5024\u3082\u307e\u3068\u3081\u3066\u51e6\u7406\u53ef\u80fd\n           \/\/ \u5225\u306e\u5171\u901a\u51e6\u7406\n           break;\n   }<\/pre>\n\n\n\n<p>switch\u6587\u306f\u7279\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5217\u6319\u578b\uff08enum\uff09\u306b\u57fa\u3065\u304f\u5206\u5c90\u51e6\u7406<\/li>\n\n\n\n<li>\u72b6\u614b\u30de\u30b7\u30f3\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30b3\u30de\u30f3\u30c9\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u30e1\u30cb\u30e5\u30fc\u9078\u629e\u51e6\u7406<\/li>\n<\/ul>\n\n\n\n<p>\u521d\u5fc3\u8005\u306e\u65b9\u306f\u3001\u4ee5\u4e0b\u306e\u70b9\u306b\u6ce8\u610f\u3057\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5fc5\u305abreak\u6587\u3092\u5fd8\u308c\u305a\u306b\u8a18\u8ff0\u3059\u308b<\/li>\n\n\n\n<li>default\u53e5\u3092\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b<\/li>\n\n\n\n<li>case\u6587\u3067\u306f\u5b9a\u6570\u5f0f\u306e\u307f\u3092\u4f7f\u7528\u3059\u308b<\/li>\n\n\n\n<li>\u8907\u96d1\u306a\u6761\u4ef6\u5206\u5c90\u306f\u907f\u3051\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u95a2\u6570\u306b\u5206\u5272\u3059\u308b<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u57fa\u672c\u3092\u62bc\u3055\u3048\u308b\u3053\u3068\u3067\u3001switch\u6587\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">switch\u3068if\u306e\u9055\u3044\u3092\u5fb9\u5e95\u89e3\u8aac<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03\u3067\u898b\u3048\u308bswitch\u306e\u771f\u4fa1<\/h3>\n\n\n\n<p>switch\u3068if-else\u306e\u6700\u3082\u91cd\u8981\u306a\u9055\u3044\u306e1\u3064\u306f\u3001\u5b9f\u884c\u6642\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3067\u3059\u3002\u3053\u306e\u9055\u3044\u3092\u5177\u4f53\u7684\u306b\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u5b9f\u88c5\u3068\u30a2\u30bb\u30f3\u30d6\u30ea\u30ec\u30d9\u30eb\u3067\u306e\u52d5\u4f5c\u3092\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\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=\"\">\/\/ \u5b9f\u884c\u6642\u9593\u3092\u8a08\u6e2c\u3059\u308b\u95a2\u6570\n#include &lt;chrono&gt;\n#include &lt;iostream&gt;\n\nenum class Operation { ADD, SUBTRACT, MULTIPLY, DIVIDE, MOD };\n\n\/\/ switch\u7248\u306e\u5b9f\u88c5\nint calculateWithSwitch(Operation op, int a, int b) {\n    switch (op) {\n        case Operation::ADD:\n            return a + b;\n        case Operation::SUBTRACT:\n            return a - b;\n        case Operation::MULTIPLY:\n            return a * b;\n        case Operation::DIVIDE:\n            return b != 0 ? a \/ b : 0;\n        case Operation::MOD:\n            return b != 0 ? a % b : 0;\n        default:\n            return 0;\n    }\n}\n\n\/\/ if-else\u7248\u306e\u5b9f\u88c5\nint calculateWithIf(Operation op, int a, int b) {\n    if (op == Operation::ADD) {\n        return a + b;\n    } else if (op == Operation::SUBTRACT) {\n        return a - b;\n    } else if (op == Operation::MULTIPLY) {\n        return a * b;\n    } else if (op == Operation::DIVIDE) {\n        return b != 0 ? a \/ b : 0;\n    } else if (op == Operation::MOD) {\n        return b != 0 ? a % b : 0;\n    }\n    return 0;\n}\n\n\/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03\nvoid comparePerformance() {\n    constexpr int ITERATIONS = 10000000;\n    Operation ops[] = {\n        Operation::ADD, Operation::SUBTRACT, Operation::MULTIPLY,\n        Operation::DIVIDE, Operation::MOD\n    };\n\n    \/\/ switch\u6587\u306e\u8a08\u6e2c\n    auto start = std::chrono::high_resolution_clock::now();\n    for (int i = 0; i &lt; ITERATIONS; ++i) {\n        calculateWithSwitch(ops[i % 5], i, i + 1);\n    }\n    auto end = std::chrono::high_resolution_clock::now();\n    auto switch_duration = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(end - start);\n\n    \/\/ if-else\u6587\u306e\u8a08\u6e2c\n    start = std::chrono::high_resolution_clock::now();\n    for (int i = 0; i &lt; ITERATIONS; ++i) {\n        calculateWithIf(ops[i % 5], i, i + 1);\n    }\n    end = std::chrono::high_resolution_clock::now();\n    auto if_duration = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(end - start);\n\n    std::cout &lt;&lt; \"Switch\u5b9f\u884c\u6642\u9593: \" &lt;&lt; switch_duration.count() &lt;&lt; \"\u03bcs\\n\";\n    std::cout &lt;&lt; \"If-else\u5b9f\u884c\u6642\u9593: \" &lt;&lt; if_duration.count() &lt;&lt; \"\u03bcs\\n\";\n}<\/pre>\n\n\n\n<p>switch\u6587\u304c\u9ad8\u901f\u306a\u7406\u7531\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b8\u30e3\u30f3\u30d7\u30c6\u30fc\u30d6\u30eb\u306e\u751f\u6210<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30e9\u306f\u9023\u7d9a\u3057\u305f\u6574\u6570\u5024\u306b\u5bfe\u3057\u3066\u52b9\u7387\u7684\u306a\u30b8\u30e3\u30f3\u30d7\u30c6\u30fc\u30d6\u30eb\u3092\u751f\u6210<\/li>\n\n\n\n<li>O(1)\u306e\u6642\u9593\u8907\u96d1\u5ea6\u3067\u9069\u5207\u306a\u5206\u5c90\u5148\u3092\u6c7a\u5b9a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5206\u5c90\u4e88\u6e2c\u306e\u52b9\u7387\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d1\u30bf\u30fc\u30f3\u304c\u898f\u5247\u7684\u306a\u5834\u5408\u3001CPU\u306e\u5206\u5c90\u4e88\u6e2c\u304c\u52b9\u679c\u7684\u306b\u6a5f\u80fd<\/li>\n\n\n\n<li>\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306e\u52b9\u7387\u7684\u306a\u5229\u7528\u304c\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6700\u9069\u5316\u306e\u5bb9\u6613\u3055<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30e9\u306b\u3088\u308b\u6700\u9069\u5316\u304c\u884c\u3044\u3084\u3059\u3044\u69cb\u9020<\/li>\n\n\n\n<li>\u7279\u306b\u9023\u7d9a\u3057\u305f\u5024\u3067\u306e\u5206\u5c90\u3067\u52b9\u679c\u3092\u767a\u63ee<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u306b\u304a\u3051\u308b\u512a\u4f4d\u6027<\/h3>\n\n\n\n<p>switch\u6587\u306f\u3001\u7279\u5b9a\u306e\u72b6\u6cc1\u4e0b\u3067\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3092\u5927\u304d\u304f\u5411\u4e0a\u3055\u305b\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u69cb\u9020\u5316\u3055\u308c\u305f\u5206\u5c90\u51e6\u7406<\/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=\"\">\/\/ switch\u6587\u306b\u3088\u308b\u660e\u78ba\u306a\u69cb\u9020\u5316\nswitch (status) {\n    case Status::INIT:\n        initializeSystem();\n        break;\n    case Status::RUNNING:\n        processData();\n        break;\n    case Status::PAUSED:\n        pauseProcessing();\n        break;\n    case Status::SHUTDOWN:\n        cleanupAndExit();\n        break;\n}\n\n\/\/ \u540c\u7b49\u306eif-else\u6587\nif (status == Status::INIT) {\n    initializeSystem();\n} else if (status == Status::RUNNING) {\n    processData();\n} else if (status == Status::PAUSED) {\n    pauseProcessing();\n} else if (status == Status::SHUTDOWN) {\n    cleanupAndExit();\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30b0\u30eb\u30fc\u30d4\u30f3\u30b0\u3068\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0<\/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=\"\">\/\/ \u95a2\u9023\u3059\u308b\u5024\u306e\u30b0\u30eb\u30fc\u30d4\u30f3\u30b0\nswitch (errorCode) {\n    case ErrorCode::FILE_NOT_FOUND:\n    case ErrorCode::PATH_NOT_FOUND:\n    case ErrorCode::ACCESS_DENIED:\n        \/\/ \u30d5\u30a1\u30a4\u30eb\u95a2\u9023\u30a8\u30e9\u30fc\u306e\u5171\u901a\u51e6\u7406\n        handleFileError(errorCode);\n        break;\n\n    case ErrorCode::OUT_OF_MEMORY:\n    case ErrorCode::STACK_OVERFLOW:\n        \/\/ \u30e1\u30e2\u30ea\u95a2\u9023\u30a8\u30e9\u30fc\u306e\u5171\u901a\u51e6\u7406\n        handleMemoryError(errorCode);\n        break;\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u65b0\u3057\u3044\u30b1\u30fc\u30b9\u306e\u8ffd\u52a0\u304c\u5bb9\u6613<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u69cb\u9020\u304c\u8996\u899a\u7684\u306b\u660e\u78ba<\/li>\n\n\n\n<li>\u95a2\u9023\u3059\u308b\u51e6\u7406\u306e\u30b0\u30eb\u30fc\u30d7\u5316\u304c\u81ea\u7136<\/li>\n<\/ul>\n\n\n\n<p>\u4f7f\u3044\u5206\u3051\u306e\u6307\u91dd\uff1a<\/p>\n\n\n<div id=\"id-93cec53e-9a0c-4033-a45b-aa875c64593c\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6761\u4ef6<\/th><th>\u63a8\u5968\u3055\u308c\u308b\u69cb\u6587<\/th><th>\u7406\u7531<\/th><\/tr><\/thead><tbody><tr><td>\u5358\u4e00\u5909\u6570\u306e\u8907\u6570\u5024\u3067\u306e\u5206\u5c90<\/td><td>switch<\/td><td>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u53ef\u8aad\u6027\u304c\u512a\u308c\u308b<\/td><\/tr><tr><td>\u8907\u96d1\u306a\u6761\u4ef6\u5f0f<\/td><td>if-else<\/td><td>\u67d4\u8edf\u306a\u6761\u4ef6\u6307\u5b9a\u304c\u53ef\u80fd<\/td><\/tr><tr><td>\u7bc4\u56f2\u306b\u3088\u308b\u5206\u5c90<\/td><td>if-else<\/td><td>switch\u306f\u5b9a\u6570\u5024\u306e\u307f\u5bfe\u5fdc<\/td><\/tr><tr><td>enum\u306b\u3088\u308b\u5206\u5c90<\/td><td>switch<\/td><td>\u578b\u5b89\u5168\u6027\u3068\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u30c1\u30a7\u30c3\u30af<\/td><\/tr><tr><td>\u6587\u5b57\u5217\u6bd4\u8f03<\/td><td>if-else<\/td><td>switch\u306f\u6587\u5b57\u5217\u76f4\u63a5\u6bd4\u8f03\u4e0d\u53ef<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u4ee5\u4e0a\u306e\u6bd4\u8f03\u304b\u3089\u3001\u305d\u308c\u305e\u308c\u306e\u5236\u5fa1\u69cb\u6587\u306b\u306f\u9069\u3057\u305f\u4f7f\u7528\u5834\u9762\u304c\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<br>\u9069\u5207\u306a\u4f7f\u3044\u5206\u3051\u306b\u3088\u308a\u3001\u52b9\u7387\u7684\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-6\">\u5b9f\u8df5\u7684\u306aswitch\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u5217\u6319\u578b\uff08enum\uff09\u3068switch\u306e\u76f8\u6027\u306e\u826f\u3055<\/h3>\n\n\n\n<p>enum\u3068switch\u306e\u7d44\u307f\u5408\u308f\u305b\u306f\u3001\u578b\u5b89\u5168\u6027\u3068\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3092\u4e21\u7acb\u3059\u308b\u5f37\u529b\u306a\u624b\u6cd5\u3067\u3059\u3002\u7279\u306bC++11\u4ee5\u964d\u3067\u5c0e\u5165\u3055\u308c\u305fenum class\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5b89\u5168\u306a\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\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=\"\">\/\/ \u30b9\u30c6\u30fc\u30c8\u30de\u30b7\u30f3\u306e\u5b9f\u88c5\u4f8b\n#include &lt;iostream&gt;\n#include &lt;string&gt;\n\n\/\/ \u30d7\u30ea\u30f3\u30bf\u30fc\u306e\u72b6\u614b\u3092\u8868\u3059enum class\nenum class PrinterState {\n    IDLE,\n    PRINTING,\n    PAPER_JAM,\n    OUT_OF_PAPER,\n    ERROR\n};\n\nclass Printer {\nprivate:\n    PrinterState state_ = PrinterState::IDLE;\n    std::string currentJob_;\n\npublic:\n    void handleEvent(const std::string&amp; event) {\n        switch (state_) {\n            case PrinterState::IDLE:\n                if (event == \"print\") {\n                    state_ = PrinterState::PRINTING;\n                    std::cout &lt;&lt; \"\u958b\u59cb: \u5370\u5237\u30b8\u30e7\u30d6\" &lt;&lt; std::endl;\n                }\n                break;\n\n            case PrinterState::PRINTING:\n                if (event == \"complete\") {\n                    state_ = PrinterState::IDLE;\n                    std::cout &lt;&lt; \"\u5b8c\u4e86: \u5370\u5237\u30b8\u30e7\u30d6\" &lt;&lt; std::endl;\n                } else if (event == \"jam\") {\n                    state_ = PrinterState::PAPER_JAM;\n                    std::cout &lt;&lt; \"\u8b66\u544a: \u7d19\u8a70\u307e\u308a\u767a\u751f\" &lt;&lt; std::endl;\n                }\n                break;\n\n            case PrinterState::PAPER_JAM:\n                if (event == \"clear\") {\n                    state_ = PrinterState::IDLE;\n                    std::cout &lt;&lt; \"\u89e3\u6d88: \u7d19\u8a70\u307e\u308a\" &lt;&lt; std::endl;\n                }\n                break;\n\n            case PrinterState::OUT_OF_PAPER:\n                if (event == \"paper_added\") {\n                    state_ = PrinterState::IDLE;\n                    std::cout &lt;&lt; \"\u88dc\u5145: \u7528\u7d19\" &lt;&lt; std::endl;\n                }\n                break;\n\n            case PrinterState::ERROR:\n                if (event == \"reset\") {\n                    state_ = PrinterState::IDLE;\n                    std::cout &lt;&lt; \"\u30ea\u30bb\u30c3\u30c8: \u30d7\u30ea\u30f3\u30bf\u30fc\" &lt;&lt; std::endl;\n                }\n                break;\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u3092\u6d3b\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u6761\u4ef6\u5206\u5c90<\/h3>\n\n\n\n<p>\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u306f\u3001\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u5171\u901a\u51e6\u7406\u3092\u52b9\u7387\u7684\u306b\u5b9f\u88c5\u3067\u304d\u308b\u5f37\u529b\u306a\u6a5f\u80fd\u3067\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=\"\">\/\/ \u6587\u5b57\u7a2e\u5225\u306e\u5224\u5b9a\u3068\u51e6\u7406\nenum class CharType {\n    DIGIT,\n    LOWERCASE,\n    UPPERCASE,\n    WHITESPACE,\n    SPECIAL\n};\n\nCharType classifyChar(char c) {\n    switch (c) {\n        case '0': case '1': case '2': case '3': case '4':\n        case '5': case '6': case '7': case '8': case '9':\n            return CharType::DIGIT;\n\n        case 'a': case 'b': case 'c': case 'd': case 'e':\n        case 'f': case 'g': case 'h': case 'i': case 'j':\n        case 'k': case 'l': case 'm': case 'n': case 'o':\n        case 'p': case 'q': case 'r': case 's': case 't':\n        case 'u': case 'v': case 'w': case 'x': case 'y':\n        case 'z':\n            return CharType::LOWERCASE;\n\n        case 'A': case 'B': case 'C': case 'D': case 'E':\n        case 'F': case 'G': case 'H': case 'I': case 'J':\n        case 'K': case 'L': case 'M': case 'N': case 'O':\n        case 'P': case 'Q': case 'R': case 'S': case 'T':\n        case 'U': case 'V': case 'W': case 'X': case 'Y':\n        case 'Z':\n            return CharType::UPPERCASE;\n\n        case ' ': case '\\t': case '\\n': case '\\r':\n            return CharType::WHITESPACE;\n\n        default:\n            return CharType::SPECIAL;\n    }\n}<\/pre>\n\n\n\n<p>\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u660e\u793a\u7684\u306a\u30b3\u30e1\u30f3\u30c8\u3092\u4ed8\u3051\u308b<\/li>\n\n\n\n<li>\u610f\u56f3\u3057\u306a\u3044\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u3092\u9632\u3050<\/li>\n\n\n\n<li>\u5171\u901a\u51e6\u7406\u304c\u660e\u78ba\u306a\u5834\u5408\u306e\u307f\u4f7f\u7528<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">default\u53e5\u306e\u6226\u7565\u7684\u306a\u4f7f\u3044\u65b9<\/h3>\n\n\n\n<p>default\u53e5\u306f\u3001\u4e88\u671f\u3057\u306a\u3044\u5024\u306e\u51e6\u7406\u3084\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306b\u52b9\u679c\u7684\u3067\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=\"\">\/\/ HTTP\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306e\u51e6\u7406\u4f8b\nenum class HttpStatus {\n    OK = 200,\n    CREATED = 201,\n    BAD_REQUEST = 400,\n    UNAUTHORIZED = 401,\n    FORBIDDEN = 403,\n    NOT_FOUND = 404,\n    INTERNAL_ERROR = 500\n};\n\nvoid handleHttpResponse(HttpStatus status) {\n    switch (status) {\n        case HttpStatus::OK:\n        case HttpStatus::CREATED:\n            \/\/ \u6210\u529f\u51e6\u7406\n            processSuccess();\n            break;\n\n        case HttpStatus::UNAUTHORIZED:\n        case HttpStatus::FORBIDDEN:\n            \/\/ \u8a8d\u8a3c\u30fb\u8a8d\u53ef\u30a8\u30e9\u30fc\u51e6\u7406\n            handleAuthError();\n            break;\n\n        case HttpStatus::NOT_FOUND:\n            \/\/ 404\u5c02\u7528\u306e\u30a8\u30e9\u30fc\u51e6\u7406\n            handleNotFound();\n            break;\n\n        case HttpStatus::BAD_REQUEST:\n            \/\/ \u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u30a8\u30e9\u30fc\u51e6\u7406\n            handleValidationError();\n            break;\n\n        case HttpStatus::INTERNAL_ERROR:\n            \/\/ \u30b5\u30fc\u30d0\u30fc\u30a8\u30e9\u30fc\u51e6\u7406\n            handleServerError();\n            break;\n\n        default:\n            \/\/ \u672a\u77e5\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306e\u51e6\u7406\n            logUnknownStatus(status);\n            throw std::runtime_error(\"Unexpected HTTP status\");\n    }\n}<\/pre>\n\n\n\n<p>default\u53e5\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a8\u30e9\u30fc\u691c\u51fa<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e88\u671f\u3057\u306a\u3044\u5024\u306e\u691c\u51fa<\/li>\n\n\n\n<li>\u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u306e\u8a18\u9332<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u4f8b\u5916\u306e\u767a\u751f<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30d5\u30a9\u30eb\u30c8\u52d5\u4f5c\u306e\u5b9a\u7fa9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u51e6\u7406\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u6c4e\u7528\u7684\u306a\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/li>\n\n\n\n<li>\u30ed\u30b0\u8a18\u9332\u3084\u76e3\u8996<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u7db2\u7f85\u6027\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u672a\u51e6\u7406\u306e\u30b1\u30fc\u30b9\u306e\u6355\u6349<\/li>\n\n\n\n<li>\u5c06\u6765\u306e\u62e1\u5f35\u6027\u3078\u306e\u5bfe\u5fdc<\/li>\n\n\n\n<li>\u30d0\u30b0\u306e\u65e9\u671f\u767a\u898b<\/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\u304c\u9ad8\u304f\u3001\u5805\u7262\u306a\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-10\">\u30e2\u30c0\u30f3C++\u3067\u9032\u5316\u3057\u305fswitch\u6587<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">C++17\u306eswitch\u6587\u306b\u304a\u3051\u308b\u521d\u671f\u5316\u69cb\u6587<\/h3>\n\n\n\n<p>C++17\u3067\u306f\u3001switch\u6587\u306b\u521d\u671f\u5316\u69cb\u6587\u304c\u5c0e\u5165\u3055\u308c\u3001\u30b9\u30b3\u30fc\u30d7\u3092\u9650\u5b9a\u3057\u305f\u5909\u6570\u306e\u5ba3\u8a00\u3068\u521d\u671f\u5316\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u6a5f\u80fd\u306b\u3088\u308a\u3001\u3088\u308a\u30af\u30ea\u30fc\u30f3\u3067\u5b89\u5168\u306a\u30b3\u30fc\u30c9\u304c\u66f8\u3051\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\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=\"\">#include &lt;string&gt;\n#include &lt;iostream&gt;\n#include &lt;fstream&gt;\n\n\/\/ \u30d5\u30a1\u30a4\u30eb\u64cd\u4f5c\u306e\u7d50\u679c\u3092\u8868\u3059enum class\nenum class FileOperationResult {\n    SUCCESS,\n    FILE_NOT_FOUND,\n    PERMISSION_DENIED,\n    UNKNOWN_ERROR\n};\n\n\/\/ \u30e2\u30c0\u30f3\u306a\u30d5\u30a1\u30a4\u30eb\u64cd\u4f5c\u306e\u4f8b\nvoid processFile(const std::string&amp; filename) {\n    switch (std::ifstream file(filename); file.is_open()) {\n        case true: {\n            \/\/ \u30d5\u30a1\u30a4\u30eb\u304c\u958b\u3051\u305f\u5834\u5408\u306e\u51e6\u7406\n            std::string content;\n            file &gt;&gt; content;\n            std::cout &lt;&lt; \"\u30d5\u30a1\u30a4\u30eb\u5185\u5bb9: \" &lt;&lt; content &lt;&lt; std::endl;\n        } break;\n\n        case false:\n            std::cerr &lt;&lt; \"\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3051\u307e\u305b\u3093\u3067\u3057\u305f: \" &lt;&lt; filename &lt;&lt; std::endl;\n            break;\n    }\n}\n\n\/\/ \u521d\u671f\u5316\u69cb\u6587\u3092\u6d3b\u7528\u3057\u305f\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\nFileOperationResult copyFile(const std::string&amp; src, const std::string&amp; dest) {\n    switch (auto srcFile = std::ifstream(src); true) {\n        case bool(srcFile): {\n            switch (auto destFile = std::ofstream(dest); true) {\n                case bool(destFile): {\n                    destFile &lt;&lt; srcFile.rdbuf();\n                    return FileOperationResult::SUCCESS;\n                }\n                default:\n                    return FileOperationResult::PERMISSION_DENIED;\n            }\n        }\n        default:\n            return FileOperationResult::FILE_NOT_FOUND;\n    }\n}<\/pre>\n\n\n\n<p>\u521d\u671f\u5316\u69cb\u6587\u306e\u5229\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b9\u30b3\u30fc\u30d7\u306e\u5236\u9650<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5909\u6570\u306e\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0\u3092switch\u6587\u5185\u306b\u9650\u5b9a<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u306e\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u304c\u660e\u78ba<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30af\u30ea\u30fc\u30f3\u306a\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>RAII\u30d1\u30bf\u30fc\u30f3\u3068\u306e\u76f8\u6027\u304c\u826f\u3044<\/li>\n\n\n\n<li>\u30ea\u30bd\u30fc\u30b9\u306e\u81ea\u52d5\u89e3\u653e\u304c\u4fdd\u8a3c\u3055\u308c\u308b<\/li>\n\n\n\n<li>\u4f8b\u5916\u5b89\u5168\u6027\u306e\u5411\u4e0a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u306e\u7c21\u6f54\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5909\u6570\u5ba3\u8a00\u3068\u6761\u4ef6\u30c1\u30a7\u30c3\u30af\u30921\u884c\u3067\u5b9f\u73fe<\/li>\n\n\n\n<li>\u30cd\u30b9\u30c8\u3092\u6e1b\u3089\u305b\u308b\u5834\u5408\u304c\u3042\u308b<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">constexpr if\u3068\u306e\u4f7f\u3044\u5206\u3051<\/h3>\n\n\n\n<p>constexpr if\u306f\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u6761\u4ef6\u5206\u5c90\u3092\u5b9f\u73fe\u3059\u308b\u6a5f\u80fd\u3067\u3059\u3002switch\u6587\u3068\u306e\u4f7f\u3044\u5206\u3051\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u52b9\u679c\u7684\u306a\u30b3\u30fc\u30c9\u304c\u66f8\u3051\u307e\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=\"\">#include &lt;type_traits&gt;\n#include &lt;iostream&gt;\n\n\/\/ \u578b\u306b\u5fdc\u3058\u305f\u51e6\u7406\u3092\u884c\u3046\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u95a2\u6570\ntemplate&lt;typename T&gt;\nvoid processValue(const T&amp; value) {\n    if constexpr (std::is_integral_v&lt;T&gt;) {\n        \/\/ \u6574\u6570\u578b\u306e\u5834\u5408\n        std::cout &lt;&lt; \"\u6574\u6570\u5024: \" &lt;&lt; value &lt;&lt; std::endl;\n    } else if constexpr (std::is_floating_point_v&lt;T&gt;) {\n        \/\/ \u6d6e\u52d5\u5c0f\u6570\u70b9\u578b\u306e\u5834\u5408\n        std::cout &lt;&lt; \"\u6d6e\u52d5\u5c0f\u6570\u70b9\u5024: \" &lt;&lt; value &lt;&lt; std::endl;\n    } else if constexpr (std::is_same_v&lt;T, std::string&gt;) {\n        \/\/ \u6587\u5b57\u5217\u578b\u306e\u5834\u5408\n        std::cout &lt;&lt; \"\u6587\u5b57\u5217: \" &lt;&lt; value &lt;&lt; std::endl;\n    }\n}\n\n\/\/ switch\u6587\u3068constexpr if\u306e\u7d44\u307f\u5408\u308f\u305b\u4f8b\ntemplate&lt;typename T&gt;\nvoid analyzeValue(const T&amp; value) {\n    \/\/ \u5b9f\u884c\u6642\u306e\u5024\u306b\u3088\u308b\u5206\u5c90\n    switch (int category = classifyValue(value); category) {\n        case 1: {\n            if constexpr (std::is_arithmetic_v&lt;T&gt;) {\n                \/\/ \u6570\u5024\u578b\u306e\u5834\u5408\u306e\u7279\u5225\u51e6\u7406\n                processNumeric(value);\n            }\n        } break;\n\n        case 2: {\n            if constexpr (std::is_convertible_v&lt;T, std::string&gt;) {\n                \/\/ \u6587\u5b57\u5217\u5909\u63db\u53ef\u80fd\u306a\u578b\u306e\u5834\u5408\u306e\u51e6\u7406\n                processText(value);\n            }\n        } break;\n\n        default:\n            \/\/ \u305d\u306e\u4ed6\u306e\u578b\u306e\u4e00\u822c\u7684\u306a\u51e6\u7406\n            processGeneral(value);\n    }\n}<\/pre>\n\n\n\n<p>\u4f7f\u3044\u5206\u3051\u306e\u6307\u91dd\uff1a<\/p>\n\n\n<div id=\"id-6194c8c9-14a6-41e2-aa9d-b35cc69a050e\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6a5f\u80fd<\/th><th>switch\u6587<\/th><th>constexpr if<\/th><\/tr><\/thead><tbody><tr><td>\u5b9f\u884c\u30bf\u30a4\u30df\u30f3\u30b0<\/td><td>\u5b9f\u884c\u6642<\/td><td>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642<\/td><\/tr><tr><td>\u7528\u9014<\/td><td>\u5b9f\u884c\u6642\u306e\u5024\u306b\u3088\u308b\u5206\u5c90<\/td><td>\u578b\u3084\u5b9a\u6570\u306b\u3088\u308b\u5206\u5c90<\/td><\/tr><tr><td>\u4e3b\u306a\u5229\u70b9<\/td><td>\u5b9f\u884c\u6642\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/td><td>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u6700\u9069\u5316<\/td><\/tr><tr><td>\u5178\u578b\u7684\u306a\u4f7f\u7528\u4f8b<\/td><td>\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u306e\u51e6\u7406<\/td><td>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u7279\u6b8a\u5316<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u4f7f\u3044\u5206\u3051\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>switch\u6587\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b9f\u884c\u6642\u306b\u5024\u304c\u6c7a\u307e\u308b\u5206\u5c90<\/li>\n\n\n\n<li>\u5217\u6319\u578b\u306b\u57fa\u3065\u304f\u5206\u5c90<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u5206\u5c90<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>constexpr if\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u578b\u306b\u4f9d\u5b58\u3059\u308b\u51e6\u7406<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u6c7a\u5b9a\u53ef\u80fd\u306a\u6761\u4ef6<\/li>\n\n\n\n<li>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30e2\u30c0\u30f3\u306a\u6a5f\u80fd\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u8868\u73fe\u529b\u8c4a\u304b\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-13\">switch\u306e\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u3068\u56de\u907f\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u4e0d\u9069\u5207\u306a\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u306b\u3088\u308b\u30d0\u30b0<\/h3>\n\n\n\n<p>\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u306f\u610f\u56f3\u7684\u306b\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u5f37\u529b\u306a\u6a5f\u80fd\u3067\u3059\u304c\u3001\u610f\u56f3\u3057\u306a\u3044\u4f7f\u7528\u306f\u6df1\u523b\u306a\u30d0\u30b0\u306e\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u4e3b\u306a\u554f\u984c\u30d1\u30bf\u30fc\u30f3\u3068\u89e3\u6c7a\u7b56\u3092\u793a\u3057\u307e\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=\"\">\/\/ \u554f\u984c\u306e\u3042\u308b\u30b3\u30fc\u30c9\u4f8b\nenum class UserRole { ADMIN, MANAGER, EMPLOYEE };\n\nvoid processUserAction(UserRole role, const std::string&amp; action) {\n    switch (role) {\n        case UserRole::ADMIN:\n            executeAdminAction();    \/\/ break\u306e\u6b20\u843d\uff01\n        case UserRole::MANAGER:\n            executeManagerAction();  \/\/ \u610f\u56f3\u3057\u306a\u3044\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\n        case UserRole::EMPLOYEE:\n            executeEmployeeAction(); \/\/ \u3059\u3079\u3066\u306e\u30b1\u30fc\u30b9\u3067\u5b9f\u884c\u3055\u308c\u3066\u3057\u307e\u3046\n    }\n}\n\n\/\/ \u6539\u5584\u5f8c\u306e\u30b3\u30fc\u30c9\nvoid processUserAction(UserRole role, const std::string&amp; action) {\n    switch (role) {\n        case UserRole::ADMIN:\n            executeAdminAction();\n            break;  \/\/ \u660e\u793a\u7684\u306abreak\n\n        case UserRole::MANAGER:\n            executeManagerAction();\n            break;\n\n        case UserRole::EMPLOYEE:\n            executeEmployeeAction();\n            break;\n\n        default:\n            throw std::invalid_argument(\"Unknown user role\");\n    }\n}\n\n\/\/ \u610f\u56f3\u7684\u306a\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306e\u6b63\u3057\u3044\u66f8\u304d\u65b9\nvoid processPermissions(UserRole role) {\n    switch (role) {\n        case UserRole::ADMIN:\n            grantAdminPermissions();\n            [[fallthrough]]; \/\/ C++17\u4ee5\u964d\u3067\u306e\u660e\u793a\u7684\u306a\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\n\n        case UserRole::MANAGER:\n            grantManagerPermissions();\n            [[fallthrough]];\n\n        case UserRole::EMPLOYEE:\n            grantBasicPermissions();\n            break;\n    }\n}<\/pre>\n\n\n\n<p>\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u306b\u95a2\u3059\u308b\u4e3b\u306a\u554f\u984c\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u610f\u56f3\u3057\u306a\u3044\u5b9f\u884c\u30d5\u30ed\u30fc<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8907\u6570\u306ecase\u6587\u304c\u9023\u7d9a\u5b9f\u884c\u3055\u308c\u308b<\/li>\n\n\n\n<li>\u30c7\u30d0\u30c3\u30b0\u304c\u56f0\u96e3\u306a\u52d5\u4f5c\u306e\u539f\u56e0\u3068\u306a\u308b<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u4f4e\u4e0b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30fc\u30c9\u306e\u4e0d\u660e\u78ba\u3055<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u610f\u56f3\u304c\u8aad\u307f\u624b\u306b\u4f1d\u308f\u3089\u306a\u3044<\/li>\n\n\n\n<li>\u4fdd\u5b88\u6027\u306e\u4f4e\u4e0b<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u306e\u56f0\u96e3\u3055<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u904e\u5270\u306a\u30cd\u30b9\u30c8\u3092\u907f\u3051\u308b\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u624b\u6cd5<\/h3>\n\n\n\n<p>switch\u6587\u306e\u904e\u5270\u306a\u30cd\u30b9\u30c8\u306f\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u3068\u4fdd\u5b88\u6027\u3092\u8457\u3057\u304f\u4f4e\u4e0b\u3055\u305b\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u6539\u5584\u65b9\u6cd5\u3092\u793a\u3057\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=\"\">\/\/ \u554f\u984c\u306e\u3042\u308b\u904e\u5270\u306a\u30cd\u30b9\u30c8\nvoid processOrder(OrderStatus status, PaymentMethod payment) {\n    switch (status) {\n        case OrderStatus::NEW:\n            switch (payment) {\n                case PaymentMethod::CREDIT_CARD:\n                    switch (validateCard()) {\n                        case CardValidation::VALID:\n                            processPayment();\n                            break;\n                        case CardValidation::INVALID:\n                            handleInvalidCard();\n                            break;\n                    }\n                    break;\n                case PaymentMethod::BANK_TRANSFER:\n                    \/\/ \u3055\u3089\u306b\u30cd\u30b9\u30c8\u3055\u308c\u305f\u51e6\u7406...\n                    break;\n            }\n            break;\n        case OrderStatus::PROCESSING:\n            \/\/ \u3055\u3089\u306a\u308b\u5206\u5c90...\n            break;\n    }\n}\n\n\/\/ \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u5f8c\u306e\u30b3\u30fc\u30c9\n\/\/ \u8cac\u4efb\u306e\u5206\u5272\u3068\u95a2\u6570\u62bd\u51fa\nbool processCreditCardPayment() {\n    switch (validateCard()) {\n        case CardValidation::VALID:\n            processPayment();\n            return true;\n        case CardValidation::INVALID:\n            handleInvalidCard();\n            return false;\n        default:\n            throw std::runtime_error(\"Unexpected validation result\");\n    }\n}\n\nvoid processPaymentMethod(PaymentMethod payment) {\n    switch (payment) {\n        case PaymentMethod::CREDIT_CARD:\n            if (!processCreditCardPayment()) {\n                handlePaymentFailure();\n            }\n            break;\n        case PaymentMethod::BANK_TRANSFER:\n            processBankTransfer();\n            break;\n        default:\n            throw std::invalid_argument(\"Unsupported payment method\");\n    }\n}\n\nvoid processOrder(OrderStatus status, PaymentMethod payment) {\n    switch (status) {\n        case OrderStatus::NEW:\n            processPaymentMethod(payment);\n            break;\n        case OrderStatus::PROCESSING:\n            continueProcessing();\n            break;\n        default:\n            handleUnknownStatus();\n            break;\n    }\n}<\/pre>\n\n\n\n<p>\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8cac\u4efb\u306e\u5206\u5272<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5358\u4e00\u8cac\u4efb\u306e\u539f\u5247\u306b\u5f93\u3046<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u7c92\u5ea6\u3067\u306e\u95a2\u6570\u62bd\u51fa<\/li>\n\n\n\n<li>\u30c6\u30b9\u30bf\u30d3\u30ea\u30c6\u30a3\u306e\u5411\u4e0a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u72b6\u614b\u30d1\u30bf\u30fc\u30f3\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=\"\">   \/\/ \u72b6\u614b\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u7528\u3057\u305f\u6539\u5584\u4f8b\n   class OrderState {\n   public:\n       virtual void processPayment(Order&amp; order) = 0;\n       virtual ~OrderState() = default;\n   };\n\n   class NewOrderState : public OrderState {\n   public:\n       void processPayment(Order&amp; order) override {\n           \/\/ \u65b0\u898f\u6ce8\u6587\u306e\u51e6\u7406\n       }\n   };\n\n   class ProcessingOrderState : public OrderState {\n   public:\n       void processPayment(Order&amp; order) override {\n           \/\/ \u51e6\u7406\u4e2d\u306e\u6ce8\u6587\u306e\u51e6\u7406\n       }\n   };<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u65e9\u671f\u30ea\u30bf\u30fc\u30f3\u306e\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6761\u4ef6\u30c1\u30a7\u30c3\u30af\u306e\u7c21\u7d20\u5316<\/li>\n\n\n\n<li>\u30cd\u30b9\u30c8\u306e\u6df1\u3055\u306e\u524a\u6e1b<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u5411\u4e0a<\/li>\n<\/ul>\n\n\n\n<p>\u30a2\u30f3\u30c1\u30d1\u30bf\u30fc\u30f3\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u3059\u3079\u3066\u306ecase\u6587\u306bbreak\u304c\u9069\u5207\u306b\u914d\u7f6e\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li>\u610f\u56f3\u7684\u306a\u30d5\u30a9\u30fc\u30eb\u30b9\u30eb\u30fc\u306b\u306f[[fallthrough]]\u6ce8\u91c8\u304c\u3042\u308b\u304b<\/li>\n\n\n\n<li>default\u53e5\u304c\u9069\u5207\u306b\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li>\u30cd\u30b9\u30c8\u306e\u6df1\u3055\u306f3\u30ec\u30d9\u30eb\u4ee5\u4e0b\u306b\u6291\u3048\u3089\u308c\u3066\u3044\u308b\u304b<\/li>\n\n\n\n<li>\u5404case\u6587\u306e\u51e6\u7406\u306f\u9069\u5207\u306a\u9577\u3055\u306b\u53ce\u307e\u3063\u3066\u3044\u308b\u304b<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u539f\u5247\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u4fdd\u5b88\u6027\u304c\u9ad8\u304f\u3001\u30d0\u30b0\u306e\u5c11\u306a\u3044\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":{"0":"post-1876","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-cpp","7":"nothumb"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1876","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1876"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1876\/revisions"}],"predecessor-version":[{"id":1877,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1876\/revisions\/1877"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1876"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1876"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1876"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}