{"id":1943,"date":"2025-03-24T08:49:33","date_gmt":"2025-03-23T23:49:33","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1943"},"modified":"2025-03-24T08:49:33","modified_gmt":"2025-03-23T23:49:33","slug":"%e3%83%a2%e3%83%80%e3%83%b3c%e3%82%92%e6%a5%b5%e3%82%81%e3%82%8b%ef%bc%9a%e3%83%a9%e3%83%a0%e3%83%80%e5%bc%8f%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%892024","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1943","title":{"rendered":"\u30e2\u30c0\u30f3C++\u3092\u6975\u3081\u308b\uff1a\u30e9\u30e0\u30c0\u5f0f\u5b8c\u5168\u30ac\u30a4\u30c92024"},"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++\u30e9\u30e0\u30c0\u5f0f\u306e\u57fa\u790e\u77e5\u8b58<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u30e9\u30e0\u30c0\u5f0f\u304c\u89e3\u6c7a\u3059\u308b3\u3064\u306e\u958b\u767a\u8ab2\u984c<\/a>      <\/li>      <li>        <a href=\"#i-2\">\u5f93\u6765\u306e\u95a2\u6570\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u306e\u9055\u3044<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-3\">\u57fa\u672c\u7684\u306a\u69cb\u6587\u3068\u52d5\u4f5c\u539f\u7406<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-4\">\u5b9f\u8df5\u7684\u306a\u30e9\u30e0\u30c0\u5f0f\u306e\u6d3b\u7528\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">STL\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u6280<\/a>      <\/li>      <li>        <a href=\"#i-6\">\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3067\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-7\">\u4e26\u884c\u51e6\u7406\u306b\u304a\u3051\u308b\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-8\">\u30e9\u30e0\u30c0\u5f0f\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-9\">\u6355\u6349\u65b9\u6cd5\u306b\u3088\u308b\u5b9f\u884c\u901f\u5ea6\u306e\u9055\u3044<\/a>      <\/li>      <li>        <a href=\"#i-10\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u91cd\u8996\u3059\u308b\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-11\">\u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u306e\u6319\u52d5\u3068\u305d\u306e\u5236\u5fa1\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-12\">C++20\u3067\u9032\u5316\u3057\u305f\u30e9\u30e0\u30c0\u5f0f\u306e\u65b0\u6a5f\u80fd<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-13\">\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u30b5\u30dd\u30fc\u30c8<\/a>      <\/li>      <li>        <a href=\"#i-14\">constexpr \u30e9\u30e0\u30c0\u306e\u6d3b\u7528\u30b7\u30fc\u30f3<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-15\">\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30e9\u30e0\u30c0\u306e\u62e1\u5f35\u6a5f\u80fd<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-16\">\u73fe\u5834\u3067\u6d3b\u304b\u3059\u30e9\u30e0\u30c0\u5f0f\u306e\u30d1\u30bf\u30fc\u30f3<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-17\">\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u5b9f\u88c5\u306e\u30e2\u30c0\u30f3\u30a2\u30d7\u30ed\u30fc\u30c1<\/a>      <\/li>      <li>        <a href=\"#i-18\">RAII \u30a4\u30c7\u30a3\u30aa\u30e0\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u624b\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-19\">\u30e9\u30e0\u30c0\u5f0f\u306b\u3088\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u7c21\u7565\u5316<\/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++\u30e9\u30e0\u30c0\u5f0f\u306e\u57fa\u790e\u77e5\u8b58<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u30e9\u30e0\u30c0\u5f0f\u304c\u89e3\u6c7a\u3059\u308b3\u3064\u306e\u958b\u767a\u8ab2\u984c<\/h3>\n\n\n\n<p>\u30e2\u30c0\u30f3C++\u306b\u304a\u3051\u308b\u30e9\u30e0\u30c0\u5f0f\u306f\u3001\u591a\u304f\u306e\u958b\u767a\u8005\u304c\u76f4\u9762\u3059\u308b\u4ee5\u4e0b\u306e\u8ab2\u984c\u3092\u52b9\u679c\u7684\u306b\u89e3\u6c7a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4e00\u6642\u7684\u306a\u95a2\u6570\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5197\u9577\u306a\u5b9a\u7fa9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f93\u6765\u306f\u5358\u7d14\u306a\u51e6\u7406\u3067\u3082\u95a2\u6570\u3084\u30d5\u30a1\u30f3\u30af\u30bf\u3092\u5225\u9014\u5b9a\u7fa9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f<\/li>\n\n\n\n<li>\u30e9\u30e0\u30c0\u5f0f\u306b\u3088\u308a\u3001\u4f7f\u7528\u5834\u6240\u3067\u76f4\u63a5\u30a4\u30f3\u30e9\u30a4\u30f3\u5b9a\u7fa9\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u72b6\u614b\u3092\u6301\u3064\u95a2\u6570\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5b9f\u88c5\u306e\u8907\u96d1\u3055<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f93\u6765\u306e\u30d5\u30a1\u30f3\u30af\u30bf\u3067\u306f\u3001\u72b6\u614b\u3092\u4fdd\u6301\u3059\u308b\u305f\u3081\u306b\u30af\u30e9\u30b9\u30e1\u30f3\u30d0\u30fc\u3068\u3057\u3066\u5909\u6570\u3092\u5b9a\u7fa9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f<\/li>\n\n\n\n<li>\u30e9\u30e0\u30c0\u5f0f\u306e\u30ad\u30e3\u30d7\u30c1\u30e3\u6a5f\u80fd\u306b\u3088\u308a\u3001\u5fc5\u8981\u306a\u5909\u6570\u3092\u7c21\u6f54\u306b\u53d6\u308a\u8fbc\u3080\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3084\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3067\u306e\u6271\u3044\u306b\u304f\u3055<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>STL\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u306e\u8ff0\u8a9e\u6307\u5b9a\u3084\u3001\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u306e\u767b\u9332\u304c\u7169\u96d1\u3067\u3057\u305f<\/li>\n\n\n\n<li>\u30e9\u30e0\u30c0\u5f0f\u306b\u3088\u308a\u3001\u305d\u306e\u5834\u3067\u5fc5\u8981\u306a\u51e6\u7406\u3092\u7c21\u6f54\u306b\u8a18\u8ff0\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u5f93\u6765\u306e\u95a2\u6570\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u306e\u9055\u3044<\/h3>\n\n\n\n<p>\u30e9\u30e0\u30c0\u5f0f\u3068\u5f93\u6765\u306e\u95a2\u6570\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6bd4\u8f03\u3057\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=\"\">\/\/ \u5f93\u6765\u306e\u95a2\u6570\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\nclass MultiplyBy {\nprivate:\n    int factor;\npublic:\n    MultiplyBy(int f) : factor(f) {}\n    int operator()(int x) const { return x * factor; }\n};\n\n\/\/ \u540c\u7b49\u306e\u30e9\u30e0\u30c0\u5f0f\nauto multiplyBy = [factor](int x) { return x * factor; };<\/pre>\n\n\n\n<p>\u4e3b\u306a\u9055\u3044\u306f\u4ee5\u4e0b\u306e\u70b9\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u69cb\u6587\u306e\u7c21\u6f54\u3055<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e9\u30e0\u30c0\u5f0f\u306f1\u884c\u3067\u8a18\u8ff0\u53ef\u80fd<\/li>\n\n\n\n<li>\u30af\u30e9\u30b9\u5b9a\u7fa9\u304c\u4e0d\u8981\u3067\u3001\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u5c11\u306a\u3044<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u72b6\u614b\u7ba1\u7406\u306e\u5bb9\u6613\u3055<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ad\u30e3\u30d7\u30c1\u30e3\u30ea\u30b9\u30c8\u306b\u3088\u308b\u5909\u6570\u306e\u53c2\u7167\u304c\u76f4\u611f\u7684<\/li>\n\n\n\n<li>\u30b3\u30d4\u30fc\u304b\u53c2\u7167\u304b\u3092\u660e\u793a\u7684\u306b\u9078\u629e\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u578b\u63a8\u8ad6\u3068\u306e\u89aa\u548c\u6027<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>auto<\/code>\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u67d4\u8edf\u306a\u578b\u7ba1\u7406\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3068\u306e\u76f8\u6027\u304c\u826f\u597d<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">\u57fa\u672c\u7684\u306a\u69cb\u6587\u3068\u52d5\u4f5c\u539f\u7406<\/h3>\n\n\n\n<p>\u30e9\u30e0\u30c0\u5f0f\u306e\u57fa\u672c\u69cb\u6587\u3092\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\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=\"\">auto lambda = [capture](parameters) mutable noexcept -&gt; return_type { body };<\/pre>\n\n\n\n<p>\u5404\u8981\u7d20\u306e\u8aac\u660e\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ad\u30e3\u30d7\u30c1\u30e3\u30ea\u30b9\u30c8 <code>[capture]<\/code><\/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=\"\">   int multiplier = 10;\n   auto byValue = [multiplier](int x) { return x * multiplier; };     \/\/ \u5024\u30ad\u30e3\u30d7\u30c1\u30e3\n   auto byRef = [&amp;multiplier](int x) { return x * multiplier; };      \/\/ \u53c2\u7167\u30ad\u30e3\u30d7\u30c1\u30e3\n   auto captureAll = [=](int x) { return x * multiplier; };          \/\/ \u3059\u3079\u3066\u5024\u30ad\u30e3\u30d7\u30c1\u30e3\n   auto captureAllRef = [&amp;](int x) { return x * multiplier; };       \/\/ \u3059\u3079\u3066\u53c2\u7167\u30ad\u30e3\u30d7\u30c1\u30e3<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30e9\u30e1\u30fc\u30bf\u30ea\u30b9\u30c8 <code>(parameters)<\/code><\/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=\"\">   auto noParams = [] { return 42; };                                \/\/ \u30d1\u30e9\u30e1\u30fc\u30bf\u306a\u3057\n   auto oneParam = [](int x) { return x * 2; };                     \/\/ 1\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\n   auto multiParams = [](int x, int y) { return x + y; };           \/\/ \u8907\u6570\u306e\u30d1\u30e9\u30e1\u30fc\u30bf<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u4fee\u98fe\u5b50\uff08\u30aa\u30d7\u30b7\u30e7\u30f3\uff09<\/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=\"\">   auto mutableLambda = [x]() mutable { return ++x; };              \/\/ \u72b6\u614b\u3092\u5909\u66f4\u53ef\u80fd\n   auto noexceptLambda = []() noexcept { return 42; };             \/\/ \u4f8b\u5916\u3092\u6295\u3052\u306a\u3044<\/pre>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>\u623b\u308a\u5024\u578b\uff08\u30aa\u30d7\u30b7\u30e7\u30f3\uff09<\/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=\"\">   auto explicit = [](int x) -&gt; double { return x * 1.5; };         \/\/ \u660e\u793a\u7684\u306a\u623b\u308a\u5024\u578b\n   auto implicit = [](int x) { return x * 1.5; };                   \/\/ \u6697\u9ed9\u306e\u623b\u308a\u5024\u578b<\/pre>\n\n\n\n<p>\u52d5\u4f5c\u539f\u7406\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30e9\u306f\u30e9\u30e0\u30c0\u5f0f\u3092\u4e00\u610f\u306e\u578b\u3092\u6301\u3064\u30af\u30ed\u30fc\u30b8\u30e3\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5909\u63db\u3057\u307e\u3059<\/li>\n\n\n\n<li>\u30ad\u30e3\u30d7\u30c1\u30e3\u3055\u308c\u305f\u5909\u6570\u306f\u30af\u30ed\u30fc\u30b8\u30e3\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30e1\u30f3\u30d0\u30fc\u3068\u306a\u308a\u307e\u3059<\/li>\n\n\n\n<li>\u305d\u308c\u305e\u308c\u306e\u30e9\u30e0\u30c0\u5f0f\u306f\u7570\u306a\u308b\u578b\u3068\u3057\u3066\u6271\u308f\u308c\u307e\u3059<\/li>\n\n\n\n<li><code>std::function<\/code>\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u578b\u6d88\u53bb\u304c\u53ef\u80fd\u3067\u3059<\/li>\n<\/ul>\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=\"\">\/\/ \u578b\u6d88\u53bb\u306e\u4f8b\nstd::function&lt;int(int)&gt; func = [](int x) { return x * 2; };<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u7279\u5fb4\u306b\u3088\u308a\u3001\u30e9\u30e0\u30c0\u5f0f\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u7279\u306b\u5a01\u529b\u3092\u767a\u63ee\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u8ff0\u8a9e\u3068\u3057\u3066<\/li>\n\n\n\n<li>\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u95a2\u6570\u3068\u3057\u3066<\/li>\n\n\n\n<li>\u4e00\u6642\u7684\u306a\u51e6\u7406\u306e\u30ab\u30d7\u30bb\u30eb\u5316<\/li>\n\n\n\n<li>\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u3068\u3057\u3066<\/li>\n<\/ul>\n\n\n\n<p>\u4ee5\u4e0a\u304c\u3001C++\u30e9\u30e0\u30c0\u5f0f\u306e\u57fa\u790e\u77e5\u8b58\u3068\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u77e5\u8b58\u3092\u6d3b\u304b\u3057\u305f\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">\u5b9f\u8df5\u7684\u306a\u30e9\u30e0\u30c0\u5f0f\u306e\u6d3b\u7528\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">STL\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u6280<\/h3>\n\n\n\n<p>STL\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u30e9\u30e0\u30c0\u5f0f\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u67d4\u8edf\u3067\u53ef\u8aad\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u4e3b\u8981\u306a\u6d3b\u7528\u30d1\u30bf\u30fc\u30f3\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u306e\u5909\u63db\u3068\u52a0\u5de5<\/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=\"\">#include &lt;algorithm&gt;\n#include &lt;vector&gt;\n\nstd::vector&lt;int&gt; numbers = {1, 2, 3, 4, 5};\n\n\/\/ \u5404\u8981\u7d20\u30922\u500d\u306b\u3059\u308b\nstd::transform(numbers.begin(), numbers.end(), numbers.begin(),\n    [](int n) { return n * 2; });\n\n\/\/ \u6761\u4ef6\u306b\u5408\u3046\u8981\u7d20\u306e\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\nstd::vector&lt;int&gt; filtered;\nstd::copy_if(numbers.begin(), numbers.end(), std::back_inserter(filtered),\n    [](int n) { return n &gt; 5; });<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u8907\u96d1\u306a\u4e26\u3079\u66ff\u3048<\/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=\"\">struct Person {\n    std::string name;\n    int age;\n};\n\nstd::vector&lt;Person&gt; people = {\/* ... *\/};\n\n\/\/ \u5e74\u9f62\u3067\u4e26\u3079\u66ff\u3048\u3001\u540c\u3058\u5e74\u9f62\u306f\u540d\u524d\u3067\u30bd\u30fc\u30c8\nstd::sort(people.begin(), people.end(),\n    [](const Person&amp; a, const Person&amp; b) {\n        if (a.age != b.age) return a.age &lt; b.age;\n        return a.name &lt; b.name;\n    });<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30a2\u30ad\u30e5\u30e0\u30ec\u30fc\u30bf\u30d1\u30bf\u30fc\u30f3<\/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=\"\">\/\/ \u7279\u5b9a\u6761\u4ef6\u3092\u6e80\u305f\u3059\u8981\u7d20\u306e\u5408\u8a08\u3092\u8a08\u7b97\nint sum = std::accumulate(numbers.begin(), numbers.end(), 0,\n    [](int total, int current) {\n        return current % 2 == 0 ? total + current : total;\n    });<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3067\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30a4\u30d9\u30f3\u30c8\u30c9\u30ea\u30d6\u30f3\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001\u30e9\u30e0\u30c0\u5f0f\u306f\u975e\u5e38\u306b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3068\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b7\u30b0\u30ca\u30eb\/\u30b9\u30ed\u30c3\u30c8\u30d1\u30bf\u30fc\u30f3<\/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 Button {\npublic:\n    using Callback = std::function&lt;void()&gt;;\n    void setOnClick(Callback cb) { onClick = std::move(cb); }\n\nprivate:\n    Callback onClick;\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nButton button;\nint clickCount = 0;\nbutton.setOnClick([&amp;clickCount]() {\n    ++clickCount;\n    std::cout &lt;&lt; \"Button clicked: \" &lt;&lt; clickCount &lt;&lt; \" times\\n\";\n});<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u975e\u540c\u671f\u51e6\u7406\u306e\u30b3\u30fc\u30eb\u30d0\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 AsyncOperation {\npublic:\n    using CompletionHandler = std::function&lt;void(const Result&amp;)&gt;;\n\n    void start(CompletionHandler onComplete) {\n        \/\/ \u975e\u540c\u671f\u51e6\u7406\u306e\u5b8c\u4e86\u6642\u306b\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u547c\u3073\u51fa\u3059\n        std::thread([this, onComplete]() {\n            Result result = performOperation();\n            onComplete(result);\n        }).detach();\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u4e26\u884c\u51e6\u7406\u306b\u304a\u3051\u308b\u6d3b\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p>\u4e26\u884c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001\u30e9\u30e0\u30c0\u5f0f\u306f\u72b6\u614b\u306e\u30ad\u30e3\u30d7\u30c1\u30e3\u3068\u51e6\u7406\u306e\u5c40\u6240\u5316\u306b\u5f79\u7acb\u3061\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u3067\u306e\u30bf\u30b9\u30af\u5b9f\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 ThreadPool {\npublic:\n    void addTask(std::function&lt;void()&gt; task) {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex);\n        tasks.push(std::move(task));\n        condition.notify_one();\n    }\n\n    \/\/ \u4f7f\u7528\u4f8b\n    void processData(const std::vector&lt;Data&gt;&amp; items) {\n        for (const auto&amp; item : items) {\n            addTask([item]() {\n                \/\/ item\u306e\u30b3\u30d4\u30fc\u3092\u4f7f\u7528\u3057\u3066\u4e26\u884c\u51e6\u7406\n                processItem(item);\n            });\n        }\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u975e\u540c\u671f\u51e6\u7406\u306e\u9023\u9396<\/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=\"\">std::future&lt;int&gt; computeAsync(int value) {\n    return std::async(std::launch::async, () {\n        \/\/ \u91cd\u3044\u8a08\u7b97\u3092\u975e\u540c\u671f\u3067\u5b9f\u884c\n        std::this_thread::sleep_for(std::chrono::seconds(1));\n        return value * 2;\n    }).then([](std::future&lt;int&gt;&amp; f) {\n        \/\/ \u524d\u306e\u8a08\u7b97\u7d50\u679c\u3092\u3055\u3089\u306b\u52a0\u5de5\n        return f.get() + 1;\n    });\n}<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30ea\u30bd\u30fc\u30b9\u306e\u81ea\u52d5\u7ba1\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=\"\">class ScopedLock {\npublic:\n    template&lt;typename F&gt;\n    static void withLock(std::mutex&amp; mutex, F&amp;&amp; func) {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex);\n        func();\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nstd::mutex mtx;\nstd::vector&lt;int&gt; sharedData;\n\nScopedLock::withLock(mtx, [&amp;sharedData]() {\n    sharedData.push_back(42);\n    \/\/ \u30ed\u30c3\u30af\u306f\u81ea\u52d5\u7684\u306b\u89e3\u653e\u3055\u308c\u308b\n});<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u8df5\u7684\u306a\u4f8b\u306f\u3001\u30e9\u30e0\u30c0\u5f0f\u304c\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5229\u70b9\u3092\u3082\u305f\u3089\u3059\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b3\u30fc\u30c9\u306e\u5c40\u6240\u6027\u306e\u5411\u4e0a<\/li>\n\n\n\n<li>\u72b6\u614b\u7ba1\u7406\u306e\u7c21\u7d20\u5316<\/li>\n\n\n\n<li>\u518d\u5229\u7528\u53ef\u80fd\u306a\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u975e\u540c\u671f\u51e6\u7406\u306e\u53ef\u8aad\u6027\u5411\u4e0a<\/li>\n<\/ul>\n\n\n\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u3092\u3055\u3089\u306b\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u624b\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-8\">\u30e9\u30e0\u30c0\u5f0f\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u6355\u6349\u65b9\u6cd5\u306b\u3088\u308b\u5b9f\u884c\u901f\u5ea6\u306e\u9055\u3044<\/h3>\n\n\n\n<p>\u30e9\u30e0\u30c0\u5f0f\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u3001\u5909\u6570\u306e\u6355\u6349\u65b9\u6cd5\u306b\u3088\u3063\u3066\u5927\u304d\u304f\u5f71\u97ff\u3092\u53d7\u3051\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u4e3b\u8981\u306a\u30d1\u30bf\u30fc\u30f3\u3068\u305d\u306e\u5f71\u97ff\u3092\u89e3\u8aac\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5024\u30ad\u30e3\u30d7\u30c1\u30e3\u3068\u53c2\u7167\u30ad\u30e3\u30d7\u30c1\u30e3\u306e\u6bd4\u8f03<\/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=\"\">#include &lt;chrono&gt;\n#include &lt;iostream&gt;\n\nvoid measurePerformance() {\n    const int iterations = 10000000;\n    std::vector&lt;int&gt; data(1000, 1);\n\n    \/\/ \u5024\u30ad\u30e3\u30d7\u30c1\u30e3\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\n    auto start = std::chrono::high_resolution_clock::now();\n    auto byValue = [data]() {  \/\/ \u5927\u304d\u306a\u30c7\u30fc\u30bf\u306e\u30b3\u30d4\u30fc\n        return std::accumulate(data.begin(), data.end(), 0);\n    };\n    for (int i = 0; i &lt; iterations; ++i) {\n        byValue();\n    }\n    auto end = std::chrono::high_resolution_clock::now();\n    auto valueTime = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(end - start);\n\n    \/\/ \u53c2\u7167\u30ad\u30e3\u30d7\u30c1\u30e3\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\n    start = std::chrono::high_resolution_clock::now();\n    auto byRef = [&amp;data]() {  \/\/ \u30c7\u30fc\u30bf\u306e\u53c2\u7167\u306e\u307f\n        return std::accumulate(data.begin(), data.end(), 0);\n    };\n    for (int i = 0; i &lt; iterations; ++i) {\n        byRef();\n    }\n    end = std::chrono::high_resolution_clock::now();\n    auto refTime = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(end - start);\n\n    std::cout &lt;&lt; \"Value capture: \" &lt;&lt; valueTime.count() &lt;&lt; \"\u03bcs\\n\";\n    std::cout &lt;&lt; \"Reference capture: \" &lt;&lt; refTime.count() &lt;&lt; \"\u03bcs\\n\";\n}<\/pre>\n\n\n\n<p>\u6700\u9069\u306a\u6355\u6349\u65b9\u6cd5\u306e\u9078\u629e\u57fa\u6e96\uff1a<\/p>\n\n\n<div id=\"id-08b46890-e894-44d5-b38b-9534d8652246\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u72b6\u6cc1<\/th><th>\u63a8\u5968\u3055\u308c\u308b\u6355\u6349\u65b9\u6cd5<\/th><th>\u7406\u7531<\/th><\/tr><\/thead><tbody><tr><td>\u5c0f\u3055\u306a\u30c7\u30fc\u30bf\uff08POD\u578b\uff09<\/td><td>\u5024\u30ad\u30e3\u30d7\u30c1\u30e3<\/td><td>\u30ad\u30e3\u30c3\u30b7\u30e5\u52b9\u7387\u304c\u826f\u304f\u3001\u4e26\u5217\u6027\u304c\u9ad8\u3044<\/td><\/tr><tr><td>\u5927\u304d\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/td><td>\u53c2\u7167\u30ad\u30e3\u30d7\u30c1\u30e3<\/td><td>\u30e1\u30e2\u30ea\u30b3\u30d4\u30fc\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u907f\u3051\u3089\u308c\u308b<\/td><\/tr><tr><td>\u4e26\u5217\u51e6\u7406\u3067\u306e\u4f7f\u7528<\/td><td>\u5024\u30ad\u30e3\u30d7\u30c1\u30e3<\/td><td>\u30c7\u30fc\u30bf\u7af6\u5408\u3092\u9632\u304e\u3001\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u6027\u3092\u78ba\u4fdd<\/td><\/tr><tr><td>\u4e00\u6642\u7684\u306a\u4f7f\u7528<\/td><td>\u53c2\u7167\u30ad\u30e3\u30d7\u30c1\u30e3<\/td><td>\u30b9\u30bf\u30c3\u30af\u30d5\u30ec\u30fc\u30e0\u306e\u80a5\u5927\u5316\u3092\u9632\u3050<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u91cd\u8996\u3059\u308b\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>\u30e1\u30e2\u30ea\u52b9\u7387\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u4e3b\u8981\u306a\u624b\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\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=\"\">class Resource {\n    std::vector&lt;double&gt; data;\npublic:\n    Resource(size_t size) : data(size) {}\n};\n\nvoid optimizedCapture() {\n    auto resource = std::make_shared&lt;Resource&gt;(1000000);\n\n    \/\/ \u52b9\u7387\u7684\u306a\u30ad\u30e3\u30d7\u30c1\u30e3\n    auto lambda = [ptr = std::move(resource)]() {\n        \/\/ \u30ea\u30bd\u30fc\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\n    };\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u79fb\u52d5\u30bb\u30de\u30f3\u30c6\u30a3\u30af\u30b9\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=\"\">std::vector&lt;std::function&lt;void()&gt;&gt; callbacks;\n\nvoid addCallback() {\n    std::vector&lt;int&gt; largeData(1000000);\n\n    \/\/ \u52b9\u7387\u7684\u306a\u79fb\u52d5\u30ad\u30e3\u30d7\u30c1\u30e3\n    callbacks.emplace_back(\n        [data = std::move(largeData)]() mutable {\n            \/\/ \u30c7\u30fc\u30bf\u306e\u51e6\u7406\n        }\n    );\n}<\/pre>\n\n\n\n<p>\u30e1\u30e2\u30ea\u6700\u9069\u5316\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>[ ] \u5927\u304d\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u79fb\u52d5\u30ad\u30e3\u30d7\u30c1\u30e3\u3092\u4f7f\u7528<\/li>\n\n\n\n<li>[ ] \u5171\u6709\u30ea\u30bd\u30fc\u30b9\u306f\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3067\u7ba1\u7406<\/li>\n\n\n\n<li>[ ] \u4e00\u6642\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u53f3\u8fba\u5024\u53c2\u7167\u3067\u30ad\u30e3\u30d7\u30c1\u30e3<\/li>\n\n\n\n<li>[ ] \u4e0d\u8981\u306a\u30b3\u30d4\u30fc\u3092\u907f\u3051\u308b\u305f\u3081<code>const<\/code>\u53c2\u7167\u3092\u6d3b\u7528<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u306e\u6319\u52d5\u3068\u305d\u306e\u5236\u5fa1\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u6c7a\u5b9a\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u8981\u56e0\u3068\u3001\u305d\u306e\u5236\u5fa1\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u660e\u793a\u7684\u306a\u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u306e\u5236\u5fa1<\/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=\"\">\/\/ \u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u3092\u4fc3\u9032\nclass Calculator {\n    int multiplier;\npublic:\n    Calculator(int m) : multiplier(m) {}\n\n    __forceinline auto getMultiplier() const {\n        return [m = multiplier](int x) __attribute__((always_inline)) {\n            return m * x;\n        };\n    }\n};\n\n\/\/ \u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u3092\u6291\u5236\nclass DelayCalculator {\n    int multiplier;\npublic:\n    DelayCalculator(int m) : multiplier(m) {}\n\n    __attribute__((noinline)) auto getMultiplier() const {\n        return [m = multiplier](int x) __attribute__((noinline)) {\n            return m * x;\n        };\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u306e\u6700\u9069\u5316\u30ec\u30d9\u30eb<\/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=\"\">\/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u6700\u9069\u5316\u30ec\u30d9\u30eb\u6307\u5b9a\n\/\/ g++ -O3 program.cpp  \/\/ \u6700\u5927\u306e\u6700\u9069\u5316\n\/\/ g++ -O2 program.cpp  \/\/ \u30d0\u30e9\u30f3\u30b9\u306e\u53d6\u308c\u305f\u6700\u9069\u5316\n\n\/\/ \u30e9\u30e0\u30c0\u5f0f\u306e\u30b5\u30a4\u30ba\u306b\u3088\u308b\u5f71\u97ff\nauto smallLambda = [](int x) { return x * 2; };  \/\/ \u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u3055\u308c\u3084\u3059\u3044\nauto largeLambda = [](int x) {\n    int result = x;\n    for (int i = 0; i &lt; 100; ++i) {\n        result = result * 2 + i;\n    }\n    return result;\n};  \/\/ \u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u3055\u308c\u306b\u304f\u3044<\/pre>\n\n\n\n<p>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30ad\u30fc\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u6700\u9069\u5316\u3092\u6d3b\u7528<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>-O2\u3084-O3\u30d5\u30e9\u30b0\u3092\u4f7f\u7528<\/li>\n\n\n\n<li>Link Time Optimization (LTO)\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>Profile Guided Optimization (PGO)\u306e\u691c\u8a0e<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ad\u30e3\u30d7\u30c1\u30e3\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u5909\u6570\u306e\u307f\u3092\u30ad\u30e3\u30d7\u30c1\u30e3<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u30ad\u30e3\u30d7\u30c1\u30e3\u65b9\u6cd5\u306e\u9078\u629e<\/li>\n\n\n\n<li>\u30e0\u30fc\u30d6\u30bb\u30de\u30f3\u30c6\u30a3\u30af\u30b9\u306e\u6d3b\u7528<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5b9f\u884c\u6642\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u524a\u6e1b<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5c0f\u3055\u306a\u30e9\u30e0\u30c0\u5f0f\u306e\u4f7f\u7528<\/li>\n\n\n\n<li>\u4e0d\u8981\u306a\u578b\u6d88\u53bb\u306e\u56de\u907f<\/li>\n\n\n\n<li>\u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u306e\u4fc3\u9032<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30e9\u30e0\u30c0\u5f0f\u3092\u4f7f\u7528\u3057\u306a\u304c\u3089\u3082\u9ad8\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5b9f\u73fe\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-12\">C++20\u3067\u9032\u5316\u3057\u305f\u30e9\u30e0\u30c0\u5f0f\u306e\u65b0\u6a5f\u80fd<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u30b5\u30dd\u30fc\u30c8<\/h3>\n\n\n\n<p>C++20\u3067\u306f\u3001\u30e9\u30e0\u30c0\u5f0f\u3067\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u76f4\u63a5\u8a18\u8ff0\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u3088\u308a\u76f4\u611f\u7684\u306a\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u660e\u793a\u7684\u306a\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u69cb\u6587<\/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=\"\">\/\/ C++17\u4ee5\u524d\u306e\u65b9\u6cd5\nauto oldStyle = [](auto x, auto y) {\n    return x + y;\n};\n\n\/\/ C++20\u306e\u65b0\u3057\u3044\u65b9\u6cd5\nauto newStyle = []&lt;typename T&gt;(T x, T y) {\n    return x + y;\n};\n\n\/\/ \u4f7f\u7528\u4f8b\u3068\u9055\u3044\nstd::vector&lt;int&gt; v1 = {1, 2, 3};\nstd::vector&lt;double&gt; v2 = {1.0, 2.0, 3.0};\n\n\/\/ C++17\u30b9\u30bf\u30a4\u30eb - \u7570\u306a\u308b\u578b\u306e\u52a0\u7b97\u3092\u8a31\u53ef\u3057\u3066\u3057\u307e\u3046\noldStyle(v1[0], v2[0]);  \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u53ef\u80fd\n\n\/\/ C++20\u30b9\u30bf\u30a4\u30eb - \u578b\u306e\u4e00\u81f4\u3092\u5f37\u5236\n\/\/ newStyle(v1[0], v2[0]);  \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1a\u578b\u304c\u4e00\u81f4\u3057\u306a\u3044<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u578b\u60c5\u5831\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3068\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\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=\"\">\/\/ \u30b3\u30f3\u30c6\u30ca\u306e\u8981\u7d20\u578b\u306b\u57fa\u3065\u304f\u51e6\u7406\nauto containerProcessor = []&lt;typename Container&gt;(const Container&amp; c) {\n    using ValueType = typename Container::value_type;\n    using Iterator = typename Container::iterator;\n\n    \/\/ \u8981\u7d20\u578b\u306b\u4f9d\u5b58\u3057\u305f\u51e6\u7406\u304c\u53ef\u80fd\n    if constexpr (std::is_arithmetic_v&lt;ValueType&gt;) {\n        return std::accumulate(c.begin(), c.end(), ValueType{});\n    } else {\n        return c.size();  \/\/ \u975e\u7b97\u8853\u578b\u306e\u5834\u5408\u306f\u8981\u7d20\u6570\u3092\u8fd4\u3059\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nstd::vector&lt;int&gt; numbers = {1, 2, 3, 4, 5};\nint sum = containerProcessor(numbers);  \/\/ \u5408\u8a08\u3092\u8a08\u7b97\n\nstd::vector&lt;std::string&gt; strings = {\"hello\", \"world\"};\nsize_t count = containerProcessor(strings);  \/\/ \u8981\u7d20\u6570\u3092\u8fd4\u3059<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">constexpr \u30e9\u30e0\u30c0\u306e\u6d3b\u7528\u30b7\u30fc\u30f3<\/h3>\n\n\n\n<p>C++20\u3067\u306f\u3001constexpr\u30e9\u30e0\u30c0\u306e\u6a5f\u80fd\u304c\u5f37\u5316\u3055\u308c\u3001\u3088\u308a\u67d4\u8edf\u306a\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u8a08\u7b97\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u8a08\u7b97\u3068\u5b9f\u884c\u6642\u8a08\u7b97\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=\"\">\/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u3068\u5b9f\u884c\u6642\u306e\u4e21\u65b9\u3067\u4f7f\u3048\u308b\u30d5\u30a1\u30af\u30c8\u30ea\u30a2\u30eb\u8a08\u7b97\nconstexpr auto factorial = [](int n) constexpr -&gt; int {\n    if (n &lt;= 1) return 1;\n    return n * factorial(n - 1);\n};\n\n\/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u8a08\u7b97\u306e\u4f8b\nconstexpr int compile_time_result = factorial(5);  \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u8a08\u7b97\nstatic_assert(compile_time_result == 120, \"Factorial calculation error\");\n\n\/\/ \u5b9f\u884c\u6642\u8a08\u7b97\u306e\u4f8b\nint runtime_n = 4;\nint runtime_result = factorial(runtime_n);  \/\/ \u5b9f\u884c\u6642\u306b\u8a08\u7b97<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>constexpr\u30e9\u30e0\u30c0\u3092\u4f7f\u7528\u3057\u305f\u578b\u7279\u6027\u306e\u691c\u67fb<\/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=\"\">\/\/ \u578b\u306e\u7279\u6027\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u30c1\u30a7\u30c3\u30af\u3059\u308b\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\nconstexpr auto type_checker = []&lt;typename T&gt;() constexpr {\n    if constexpr (std::is_integral_v&lt;T&gt;) {\n        return \"\u6574\u6570\u578b\u3067\u3059\";\n    } else if constexpr (std::is_floating_point_v&lt;T&gt;) {\n        return \"\u6d6e\u52d5\u5c0f\u6570\u70b9\u578b\u3067\u3059\";\n    } else {\n        return \"\u305d\u306e\u4ed6\u306e\u578b\u3067\u3059\";\n    }\n};\n\n\/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u578b\u30c1\u30a7\u30c3\u30af\nconstexpr auto int_type = type_checker.operator()&lt;int&gt;();\nconstexpr auto double_type = type_checker.operator()&lt;double&gt;();\nconstexpr auto string_type = type_checker.operator()&lt;std::string&gt;();<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-15\">\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30e9\u30e0\u30c0\u306e\u62e1\u5f35\u6a5f\u80fd<\/h3>\n\n\n\n<p>C++20\u3067\u306f\u3001\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30e9\u30e0\u30c0\u306e\u6a5f\u80fd\u304c\u5927\u5e45\u306b\u5f37\u5316\u3055\u308c\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u578b\u5236\u7d04\u3068\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30f3\u30bb\u30d7\u30c8\u3092\u4f7f\u7528\u3057\u305f\u578b\u5236\u7d04<\/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=\"\">#include &lt;concepts&gt;\n\n\/\/ \u6570\u5024\u578b\u306e\u307f\u3092\u53d7\u3051\u4ed8\u3051\u308b\u30e9\u30e0\u30c0\nauto calculate = []&lt;typename T&gt;\n    requires std::integral&lt;T&gt; || std::floating_point&lt;T&gt;\n    (T a, T b) {\n    return (a + b) * (a - b);\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nint result1 = calculate(5, 3);          \/\/ OK\ndouble result2 = calculate(3.14, 2.71); \/\/ OK\n\/\/ std::string result3 = calculate(\"hello\", \"world\"); \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30e9\u30e1\u30fc\u30bf\u30d1\u30c3\u30af\u306e\u6539\u5584\u3055\u308c\u305f\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=\"\">\/\/ \u578b\u5b89\u5168\u306a\u53ef\u5909\u5f15\u6570\u306e\u51e6\u7406\nauto type_safe_processor = []&lt;typename... Ts&gt;(Ts... args) {\n    \/\/ \u5168\u3066\u306e\u5f15\u6570\u304c\u7b97\u8853\u578b\u3067\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\n    static_assert((std::is_arithmetic_v&lt;Ts&gt; &amp;&amp; ...),\n        \"\u5168\u3066\u306e\u5f15\u6570\u304c\u7b97\u8853\u578b\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\");\n\n    \/\/ \u5f15\u6570\u306e\u578b\u306b\u5fdc\u3058\u305f\u51e6\u7406\n    auto process_value = []&lt;typename T&gt;(T value) {\n        if constexpr (std::is_integral_v&lt;T&gt;) {\n            return value * 2;  \/\/ \u6574\u6570\u578b\u306f2\u500d\n        } else {\n            return value * 3.14;  \/\/ \u6d6e\u52d5\u5c0f\u6570\u70b9\u578b\u306f\u03c0\u500d\n        }\n    };\n\n    return (process_value(args) + ...);  \/\/ \u51e6\u7406\u7d50\u679c\u306e\u5408\u8a08\u3092\u8fd4\u3059\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nauto result1 = type_safe_processor(1, 2, 3);           \/\/ OK: \u6574\u6570\u306e\u51e6\u7406\nauto result2 = type_safe_processor(1.0, 2.0, 3.0);     \/\/ OK: \u6d6e\u52d5\u5c0f\u6570\u70b9\u306e\u51e6\u7406\n\/\/ auto error = type_safe_processor(1, \"hello\", 3.14);  \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306eC++20\u306e\u65b0\u6a5f\u80fd\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5229\u70b9\u304c\u5f97\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3088\u308a\u578b\u5b89\u5168\u306a\u30b3\u30fc\u30c9\u306e\u8a18\u8ff0\u304c\u53ef\u80fd\u306b<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u304c\u5f37\u5316<\/li>\n\n\n\n<li>\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u8868\u73fe\u529b\u304c\u5411\u4e0a<\/li>\n\n\n\n<li>\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u53ef\u8aad\u6027\u304c\u6539\u5584<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6a5f\u80fd\u306f\u3001\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>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u578b\u5b89\u5168\u306a\u6c4e\u7528\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u4f5c\u6210<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u6700\u9069\u5316\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u9ad8\u5ea6\u306a\u578b\u5236\u7d04\u3092\u6301\u3064\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u8a2d\u8a08<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-16\">\u73fe\u5834\u3067\u6d3b\u304b\u3059\u30e9\u30e0\u30c0\u5f0f\u306e\u30d1\u30bf\u30fc\u30f3<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u5b9f\u88c5\u306e\u30e2\u30c0\u30f3\u30a2\u30d7\u30ed\u30fc\u30c1<\/h3>\n\n\n\n<p>\u5b9f\u52d9\u3067\u306e\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u5b9f\u88c5\u306b\u304a\u3044\u3066\u3001\u30e9\u30e0\u30c0\u5f0f\u3092\u6d3b\u7528\u3059\u308b\u52b9\u679c\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u306e\u767b\u9332\u3068\u7ba1\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=\"\">class EventSystem {\n    using EventCallback = std::function&lt;void(const Event&amp;)&gt;;\n    std::unordered_map&lt;EventType, std::vector&lt;EventCallback&gt;&gt; callbacks;\n\npublic:\n    \/\/ \u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u306e\u767b\u9332\n    template&lt;typename F&gt;\n    void addEventListener(EventType type, F&amp;&amp; callback) {\n        callbacks[type].emplace_back(std::forward&lt;F&gt;(callback));\n    }\n\n    \/\/ \u30a4\u30d9\u30f3\u30c8\u306e\u767a\u706b\n    void fireEvent(const Event&amp; event) {\n        auto it = callbacks.find(event.type);\n        if (it != callbacks.end()) {\n            for (const auto&amp; callback : it-&gt;second) {\n                callback(event);\n            }\n        }\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nEventSystem events;\n\n\/\/ \u30e9\u30e0\u30c0\u306b\u3088\u308b\u30a4\u30d9\u30f3\u30c8\u30cf\u30f3\u30c9\u30e9\u306e\u767b\u9332\nevents.addEventListener(EventType::UserAction, \n    [](const Event&amp; e) {\n        std::cout &lt;&lt; \"User action detected: \" &lt;&lt; e.description &lt;&lt; '\\n';\n    }\n);\n\n\/\/ \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3092\u6355\u6349\u3057\u305f\u30cf\u30f3\u30c9\u30e9\nclass UserManager {\n    void setupEventHandlers(EventSystem&amp; events) {\n        events.addEventListener(EventType::UserLogin,\n            [this](const Event&amp; e) {\n                handleLogin(e);\n            }\n        );\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u975e\u540c\u671f\u51e6\u7406\u306e\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u30c1\u30a7\u30fc\u30f3<\/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 AsyncOperation {\npublic:\n    template&lt;typename F&gt;\n    auto then(F&amp;&amp; callback) {\n        return std::async(std::launch::async, [\n            future = std::move(result_),\n            cb = std::forward&lt;F&gt;(callback)\n        ]() mutable {\n            auto result = future.get();\n            return cb(std::move(result));\n        });\n    }\n\n    \/\/ \u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\n    template&lt;typename F&gt;\n    auto catch_error(F&amp;&amp; handler) {\n        return std::async(std::launch::async, [\n            future = std::move(result_),\n            h = std::forward&lt;F&gt;(handler)\n        ]() mutable {\n            try {\n                return future.get();\n            } catch (const std::exception&amp; e) {\n                return h(e);\n            }\n        });\n    }\n\nprivate:\n    std::future&lt;Result&gt; result_;\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nauto operation = startAsyncOperation()\n    .then([](Result r) {\n        return processResult(r);\n    })\n    .catch_error([](const std::exception&amp; e) {\n        return handleError(e);\n    });<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">RAII \u30a4\u30c7\u30a3\u30aa\u30e0\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u624b\u6cd5<\/h3>\n\n\n\n<p>RAII\u30d1\u30bf\u30fc\u30f3\u3068\u30e9\u30e0\u30c0\u5f0f\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406\u3092\u3088\u308a\u67d4\u8edf\u306b\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b9\u30b3\u30fc\u30d7\u30ac\u30fc\u30c9\u306e\u5b9f\u88c5<\/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=\"\">template&lt;typename F&gt;\nclass ScopeGuard {\n    F cleanup_;\npublic:\n    explicit ScopeGuard(F&amp;&amp; cleanup) \n        : cleanup_(std::forward&lt;F&gt;(cleanup)) {}\n\n    ~ScopeGuard() {\n        try {\n            cleanup_();\n        } catch (...) {\n            \/\/ \u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\u4e2d\u306e\u4f8b\u5916\u306f\u7121\u8996\n        }\n    }\n\n    \/\/ \u30b3\u30d4\u30fc\u7981\u6b62\n    ScopeGuard(const ScopeGuard&amp;) = delete;\n    ScopeGuard&amp; operator=(const ScopeGuard&amp;) = delete;\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid processFile(const std::string&amp; filename) {\n    FILE* file = fopen(filename.c_str(), \"r\");\n    auto guard = ScopeGuard([file]() {\n        if (file) fclose(file);\n    });\n\n    \/\/ \u30d5\u30a1\u30a4\u30eb\u51e6\u7406...\n    \/\/ \u4f8b\u5916\u304c\u767a\u751f\u3057\u3066\u3082\u30d5\u30a1\u30a4\u30eb\u306f\u81ea\u52d5\u7684\u306b\u30af\u30ed\u30fc\u30ba\u3055\u308c\u308b\n}<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30ea\u30bd\u30fc\u30b9\u30d7\u30fc\u30eb\u306e\u7ba1\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=\"\">class ResourcePool {\n    std::vector&lt;Resource&gt; resources_;\n    std::mutex mutex_;\n\npublic:\n    template&lt;typename F&gt;\n    auto withResource(F&amp;&amp; operation) {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex_);\n        if (resources_.empty()) {\n            throw std::runtime_error(\"No available resources\");\n        }\n\n        Resource resource = std::move(resources_.back());\n        resources_.pop_back();\n\n        \/\/ \u30ea\u30bd\u30fc\u30b9\u89e3\u653e\u3092\u4fdd\u8a3c\u3059\u308bRAII\u30d1\u30bf\u30fc\u30f3\n        auto cleanup = ScopeGuard([this, &amp;resource]() {\n            std::lock_guard&lt;std::mutex&gt; lock(mutex_);\n            resources_.push_back(std::move(resource));\n        });\n\n        return operation(resource);\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u30e9\u30e0\u30c0\u5f0f\u306b\u3088\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u7c21\u7565\u5316<\/h3>\n\n\n\n<p>\u8907\u96d1\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u30e9\u30e0\u30c0\u5f0f\u3067\u7c21\u7565\u5316\u3059\u308b\u5b9f\u8df5\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d3\u30eb\u30c0\u30fc\u30d1\u30bf\u30fc\u30f3\u306e\u7c21\u7565\u5316<\/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 QueryBuilder {\n    std::string query_;\n    std::vector&lt;std::string&gt; conditions_;\n\npublic:\n    template&lt;typename F&gt;\n    QueryBuilder&amp; where(F&amp;&amp; condition) {\n        \/\/ \u30e9\u30e0\u30c0\u5f0f\u3092\u6587\u5b57\u5217\u6761\u4ef6\u306b\u5909\u63db\n        conditions_.push_back(convertToSql(std::forward&lt;F&gt;(condition)));\n        return *this;\n    }\n\n    std::string build() {\n        query_ = \"SELECT * FROM table\";\n        if (!conditions_.empty()) {\n            query_ += \" WHERE \" + \n                     join(conditions_.begin(), conditions_.end(), \" AND \");\n        }\n        return query_;\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nauto query = QueryBuilder()\n    .where([](auto&amp; field) { return field.name == \"John\"; })\n    .where([](auto&amp; field) { return field.age &gt; 20; })\n    .build();<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u8a2d\u5b9a\u306e\u67d4\u8edf\u306a\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=\"\">class ComponentConfig {\n    std::vector&lt;std::function&lt;void(Component&amp;)&gt;&gt; configurations_;\n\npublic:\n    template&lt;typename F&gt;\n    ComponentConfig&amp; add(F&amp;&amp; config) {\n        configurations_.push_back(std::forward&lt;F&gt;(config));\n        return *this;\n    }\n\n    void applyTo(Component&amp; component) const {\n        for (const auto&amp; config : configurations_) {\n            config(component);\n        }\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nauto config = ComponentConfig()\n    .add([](Component&amp; c) { c.setSize(100, 100); })\n    .add([](Component&amp; c) { c.setColor(Color::Blue); })\n    .add([](Component&amp; c) { c.setVisible(true); });\n\nconfig.applyTo(myComponent);<\/pre>\n\n\n\n<p>\u5b9f\u52d9\u3067\u306e\u4f7f\u7528\u306b\u304a\u3044\u3066\u6ce8\u610f\u3059\u3079\u304d\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ad\u30e3\u30d7\u30c1\u30e3\u306e\u7ba1\u7406<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53c2\u7167\u30ad\u30e3\u30d7\u30c1\u30e3\u306f\u5bff\u547d\u306b\u6ce8\u610f<\/li>\n\n\n\n<li>\u5927\u304d\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u53c2\u7167\u3067\u30ad\u30e3\u30d7\u30c1\u30e3<\/li>\n\n\n\n<li>\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u306e\u30ad\u30e3\u30d7\u30c1\u30e3\u306f\u5024\u30b3\u30d4\u30fc\u3092\u63a8\u5968<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30d0\u30c3\u30b0\u6027\u306e\u8003\u616e<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8907\u96d1\u306a\u30e9\u30e0\u30c0\u306f\u540d\u524d\u4ed8\u304d\u95a2\u6570\u306b\u5206\u5272<\/li>\n\n\n\n<li>\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u306e\u53ef\u8aad\u6027\u3092\u78ba\u4fdd<\/li>\n\n\n\n<li>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u660e\u78ba\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4fdd\u5b88\u6027\u306e\u78ba\u4fdd<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u904e\u5ea6\u306b\u8907\u96d1\u306a\u30e9\u30e0\u30c0\u306f\u907f\u3051\u308b<\/li>\n\n\n\n<li>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u3092\u6020\u3089\u306a\u3044<\/li>\n\n\n\n<li>\u30c6\u30b9\u30c8\u5bb9\u6613\u6027\u3092\u8003\u616e<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4fdd\u5b88\u6027\u304c\u9ad8\u304f\u3001\u52b9\u7387\u7684\u306a\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-1943","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\/1943","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=1943"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1943\/revisions"}],"predecessor-version":[{"id":1945,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1943\/revisions\/1945"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1943"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1943"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}