{"id":1908,"date":"2025-03-24T08:49:38","date_gmt":"2025-03-23T23:49:38","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1908"},"modified":"2025-03-24T08:49:38","modified_gmt":"2025-03-23T23:49:38","slug":"c%e6%96%87%e5%ad%97%e5%88%97%e5%87%a6%e7%90%86%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9a%e5%88%9d%e7%b4%9a%e8%80%85%e3%81%8b%e3%82%89%e4%b8%ad%e7%b4%9a%e8%80%85%e3%81%be%e3%81%a7","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1908","title":{"rendered":"C++\u6587\u5b57\u5217\u51e6\u7406\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a\u521d\u7d1a\u8005\u304b\u3089\u4e2d\u7d1a\u8005\u307e\u3067\u4f7f\u3048\u308b\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af15\u9078"},"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++\u306b\u304a\u3051\u308b\u6587\u5b57\u5217\u306e\u57fa\u790e\u77e5\u8b58<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">C++\u3067\u6587\u5b57\u5217\u3092\u6271\u30462\u3064\u306e\u65b9\u6cd5\uff1aC\u5f62\u5f0f\u3068std::string<\/a>      <\/li>      <li>        <a href=\"#i-4\">std::string\u30af\u30e9\u30b9\u304c\u63d0\u4f9b\u3059\u308b\u57fa\u672c\u6a5f\u80fd\u3068\u7279\u5fb4<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-9\">C\u5f62\u5f0f\u3068std::string\u306e\u6bd4\u8f03\u8868<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-10\">\u57fa\u672c\u7684\u306a\u6587\u5b57\u5217\u64cd\u4f5c\u306e\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-11\">\u6587\u5b57\u5217\u306e\u751f\u6210\u3068\u521d\u671f\u5316\u306b\u304a\u3051\u308b4\u3064\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>      <\/li>      <li>        <a href=\"#i-16\">\u6587\u5b57\u5217\u306e\u9023\u7d50\u3068\u5206\u5272\u3092\u52b9\u7387\u7684\u306b\u884c\u3046\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-19\">\u90e8\u5206\u6587\u5b57\u5217\u306e\u62bd\u51fa\u3068\u691c\u7d22\u306e\u305f\u3081\u306e\u5b9f\u88c5\u4f8b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-22\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u6587\u5b57\u5217\u51e6\u7406<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-23\">\u30e1\u30e2\u30ea\u52b9\u7387\u3092\u6700\u5927\u5316\u3059\u308bstring\u64cd\u4f5c\u306e\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-27\">\u5927\u91cf\u306e\u6587\u5b57\u5217\u51e6\u7406\u306b\u304a\u3051\u308b\u6700\u9069\u5316\u6226\u7565<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-31\">\u65e5\u672c\u8a9e\u306a\u3069\u306e\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u3078\u306e\u5bfe\u5fdc<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-32\">\u6587\u5b57\u30b3\u30fc\u30c9\u306e\u7406\u89e3\u3068\u9069\u5207\u306a\u51e6\u7406\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-35\">\u30ed\u30b1\u30fc\u30eb\u8a2d\u5b9a\u306b\u3088\u308b\u56fd\u969b\u5316\u5bfe\u5fdc\u306e\u5b9f\u88c5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-39\">\u6587\u5b57\u5217\u51e6\u7406\u306e\u5fdc\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-40\">\u6b63\u898f\u8868\u73fe\u3092\u6d3b\u7528\u3057\u305f\u9ad8\u5ea6\u306a\u6587\u5b57\u5217\u64cd\u4f5c<\/a>      <\/li>      <li>        <a href=\"#i-43\">\u6587\u5b57\u5217\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u4f7f\u7528\u3057\u305f\u5165\u51fa\u529b\u51e6\u7406<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-46\">\u6587\u5b57\u5217\u5909\u63db\u306b\u304a\u3051\u308b\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-49\">\u3088\u304f\u3042\u308b\u30d0\u30b0\u3068\u5bfe\u51e6\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-50\">\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050\u305f\u3081\u306e\u6ce8\u610f\u70b9\u3068\u5bfe\u7b56<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-54\">\u30d0\u30c3\u30d5\u30a1\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u3092\u9632\u3050\u5b89\u5168\u306a\u5b9f\u88c5\u65b9\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++\u306b\u304a\u3051\u308b\u6587\u5b57\u5217\u306e\u57fa\u790e\u77e5\u8b58<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">C++\u3067\u6587\u5b57\u5217\u3092\u6271\u30462\u3064\u306e\u65b9\u6cd5\uff1aC\u5f62\u5f0f\u3068std::string<\/h3>\n\n\n\n<p>C++\u3067\u306f\u3001\u6587\u5b57\u5217\u3092\u6271\u3046\u305f\u3081\u306e\u4e3b\u8981\u306a2\u3064\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u3042\u308a\u307e\u3059\uff1aC\u5f62\u5f0f\u306e\u6587\u5b57\u5217\u3068std::string\u30af\u30e9\u30b9\u3067\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u7279\u5fb4\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u9069\u5207\u306a\u4f7f\u3044\u5206\u3051\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-2\">1. C\u5f62\u5f0f\u306e\u6587\u5b57\u5217<\/h4>\n\n\n\n<p>C\u5f62\u5f0f\u306e\u6587\u5b57\u5217\u306f\u3001\u6587\u5b57\u306e\u914d\u5217\uff08char\u914d\u5217\uff09\u3068\u3057\u3066\u5b9f\u88c5\u3055\u308c\u3001null\u7d42\u7aef\u6587\u5b57\uff08\u2019\\0\u2019\uff09\u3067\u7d42\u308f\u308a\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=\"\">\/\/ C\u5f62\u5f0f\u306e\u6587\u5b57\u5217\u306e\u5ba3\u8a00\u3068\u521d\u671f\u5316\nchar str1[] = \"Hello\";  \/\/ \u81ea\u52d5\u7684\u306bnull\u7d42\u7aef\u6587\u5b57\u304c\u8ffd\u52a0\u3055\u308c\u308b\nchar str2[6] = {'H', 'e', 'l', 'l', 'o', '\\0'};  \/\/ \u660e\u793a\u7684\u306anull\u7d42\u7aef\u6587\u5b57<\/pre>\n\n\n\n<p><strong>\u7279\u5fb4\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u304c\u5c11\u306a\u3044<\/li>\n\n\n\n<li>\u4f4e\u30ec\u30d9\u30eb\u306a\u64cd\u4f5c\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u6587\u5b57\u5217\u9577\u306e\u5236\u9650\u304c\u9759\u7684<\/li>\n\n\n\n<li>\u30d0\u30c3\u30d5\u30a1\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u306e\u30ea\u30b9\u30af<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-3\">2. std::string<\/h4>\n\n\n\n<p>std::string\u306f\u3001C++\u306e\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u63d0\u4f9b\u3055\u308c\u308b\u6587\u5b57\u5217\u30af\u30e9\u30b9\u3067\u3001\u3088\u308a\u5b89\u5168\u3067\u67d4\u8edf\u306a\u6587\u5b57\u5217\u64cd\u4f5c\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;string&gt;\n\n\/\/ std::string\u306e\u5ba3\u8a00\u3068\u521d\u671f\u5316\nstd::string str1 = \"Hello\";\nstd::string str2(\"World\");\nstd::string str3 = str1 + \" \" + str2;  \/\/ \u6587\u5b57\u5217\u306e\u9023\u7d50\u304c\u5bb9\u6613<\/pre>\n\n\n\n<p><strong>\u7279\u5fb4\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u52d5\u7684\u306a\u30e1\u30e2\u30ea\u7ba1\u7406<\/li>\n\n\n\n<li>\u5b89\u5168\u306a\u6587\u5b57\u5217\u64cd\u4f5c<\/li>\n\n\n\n<li>\u8c4a\u5bcc\u306a\u30e1\u30f3\u30d0\u95a2\u6570<\/li>\n\n\n\n<li>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">std::string\u30af\u30e9\u30b9\u304c\u63d0\u4f9b\u3059\u308b\u57fa\u672c\u6a5f\u80fd\u3068\u7279\u5fb4<\/h3>\n\n\n\n<p>std::string\u30af\u30e9\u30b9\u306f\u3001\u591a\u304f\u306e\u4fbf\u5229\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u4e3b\u8981\u306a\u6a5f\u80fd\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-5\">1. \u57fa\u672c\u7684\u306a\u64cd\u4f5c\u30e1\u30bd\u30c3\u30c9<\/h4>\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::string text = \"Hello, C++\";\n\n\/\/ \u9577\u3055\u306e\u53d6\u5f97\nsize_t length = text.length();    \/\/ 9\nsize_t size = text.size();        \/\/ length\u3068\u540c\u3058\n\n\/\/ \u6587\u5b57\u3078\u306e\u30a2\u30af\u30bb\u30b9\nchar first = text[0];             \/\/ 'H'\nchar last = text.back();          \/\/ '+'\n\n\/\/ \u90e8\u5206\u6587\u5b57\u5217\u306e\u53d6\u5f97\nstd::string sub = text.substr(0, 5);  \/\/ \"Hello\"<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-6\">2. \u6587\u5b57\u5217\u306e\u5909\u66f4<\/h4>\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::string text = \"Hello\";\n\n\/\/ \u6587\u5b57\u5217\u306e\u8ffd\u52a0\ntext.append(\", World\");           \/\/ \"Hello, World\"\ntext += \"!\";                      \/\/ \"Hello, World!\"\n\n\/\/ \u6587\u5b57\u5217\u306e\u633f\u5165\ntext.insert(5, \" dear\");         \/\/ \"Hello dear, World!\"\n\n\/\/ \u6587\u5b57\u5217\u306e\u524a\u9664\ntext.erase(5, 5);                \/\/ \"Hello, World!\"<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-7\">3. \u6587\u5b57\u5217\u306e\u691c\u7d22<\/h4>\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::string text = \"Hello, World!\";\n\n\/\/ \u6587\u5b57\u5217\u306e\u691c\u7d22\nsize_t pos = text.find(\"World\");  \/\/ 7\npos = text.find(\"C++\");           \/\/ std::string::npos\uff08\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\uff09\n\n\/\/ \u5f8c\u65b9\u304b\u3089\u306e\u691c\u7d22\npos = text.rfind(\"o\");           \/\/ 7\uff08\u6700\u5f8c\u306e'o'\u306e\u4f4d\u7f6e\uff09<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-8\">4. \u5bb9\u91cf\u7ba1\u7406<\/h4>\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::string text;\n\n\/\/ \u5bb9\u91cf\u306e\u4e88\u7d04\uff08\u30e1\u30e2\u30ea\u518d\u5272\u308a\u5f53\u3066\u306e\u56de\u6570\u3092\u6e1b\u3089\u3059\uff09\ntext.reserve(100);\n\n\/\/ \u73fe\u5728\u306e\u5bb9\u91cf\u3092\u78ba\u8a8d\nsize_t capacity = text.capacity();\n\n\/\/ \u4f7f\u7528\u3057\u3066\u3044\u306a\u3044\u5bb9\u91cf\u3092\u89e3\u653e\ntext.shrink_to_fit();<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">C\u5f62\u5f0f\u3068std::string\u306e\u6bd4\u8f03\u8868<\/h3>\n\n\n<div id=\"id-1ca05a6b-dd88-46d5-b321-dfd1df40776f\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027<\/th><th>C\u5f62\u5f0f\u6587\u5b57\u5217<\/th><th>std::string<\/th><\/tr><\/thead><tbody><tr><td>\u30e1\u30e2\u30ea\u7ba1\u7406<\/td><td>\u9759\u7684\uff08\u56fa\u5b9a\u9577\uff09<\/td><td>\u52d5\u7684\uff08\u53ef\u5909\u9577\uff09<\/td><\/tr><tr><td>\u5b89\u5168\u6027<\/td><td>\u30d0\u30c3\u30d5\u30a1\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u306e\u5371\u967a\u6027<\/td><td>\u81ea\u52d5\u7684\u306a\u30e1\u30e2\u30ea\u7ba1\u7406\u3067\u5b89\u5168<\/td><\/tr><tr><td>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/td><td>\u4e00\u822c\u7684\u306b\u9ad8\u901f<\/td><td>\u3084\u3084\u4f4e\u901f\u3060\u304c\u6700\u9069\u5316\u3055\u308c\u3066\u3044\u308b<\/td><\/tr><tr><td>\u4f7f\u3044\u3084\u3059\u3055<\/td><td>\u4f4e\u30ec\u30d9\u30eb\u306a\u64cd\u4f5c\u304c\u5fc5\u8981<\/td><td>\u9ad8\u30ec\u30d9\u30eb\u306aAPI\u3067\u5bb9\u6613<\/td><\/tr><tr><td>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf<\/td><td>\u5c11\u306a\u3044<\/td><td>\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3042\u308a<\/td><\/tr><tr><td>\u6a5f\u80fd\u6027<\/td><td>\u57fa\u672c\u7684\u306a\u64cd\u4f5c\u306e\u307f<\/td><td>\u8c4a\u5bcc\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u3053\u306e\u57fa\u790e\u77e5\u8b58\u3092\u8e0f\u307e\u3048\u305f\u4e0a\u3067\u3001\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u4f7f\u3044\u5206\u3051\u3092\u63a8\u5968\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>std::string\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\uff1a<\/strong><\/li>\n\n\n\n<li>\u6587\u5b57\u5217\u306e\u9577\u3055\u304c\u52d5\u7684\u306b\u5909\u5316\u3059\u308b\u5834\u5408<\/li>\n\n\n\n<li>\u5b89\u5168\u6027\u3092\u91cd\u8996\u3059\u308b\u5834\u5408<\/li>\n\n\n\n<li>\u9ad8\u30ec\u30d9\u30eb\u306a\u6587\u5b57\u5217\u64cd\u4f5c\u304c\u5fc5\u8981\u306a\u5834\u5408<\/li>\n\n\n\n<li><strong>C\u5f62\u5f0f\u6587\u5b57\u5217\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\uff1a<\/strong><\/li>\n\n\n\n<li>\u30b7\u30b9\u30c6\u30e0API\u3068\u306e\u9023\u643a\u304c\u5fc5\u8981\u306a\u5834\u5408<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u6975\u9650\u307e\u3067\u6291\u3048\u305f\u3044\u5834\u5408<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u6975\u3081\u3066\u91cd\u8981\u306a\u5834\u5408<\/li>\n<\/ul>\n\n\n\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u57fa\u672c\u7684\u306a\u77e5\u8b58\u3092\u6d3b\u7528\u3057\u305f\u5b9f\u8df5\u7684\u306a\u6587\u5b57\u5217\u64cd\u4f5c\u30c6\u30af\u30cb\u30c3\u30af\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-10\">\u57fa\u672c\u7684\u306a\u6587\u5b57\u5217\u64cd\u4f5c\u306e\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-11\">\u6587\u5b57\u5217\u306e\u751f\u6210\u3068\u521d\u671f\u5316\u306b\u304a\u3051\u308b4\u3064\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h3>\n\n\n\n<p>\u6587\u5b57\u5217\u306e\u9069\u5207\u306a\u751f\u6210\u3068\u521d\u671f\u5316\u306f\u3001\u52b9\u7387\u7684\u306a\u6587\u5b57\u5217\u51e6\u7406\u306e\u57fa\u76e4\u3068\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u5b9f\u8df5\u7684\u306a\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-12\">1. \u9069\u5207\u306a\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u9078\u629e<\/h4>\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;vector&gt;\n\n\/\/ 1. \u57fa\u672c\u7684\u306a\u521d\u671f\u5316\nstd::string str1 = \"Hello\";           \/\/ \u57fa\u672c\u7684\u306a\u521d\u671f\u5316\nstd::string str2{\"World\"};            \/\/ \u7d71\u4e00\u521d\u671f\u5316\u69cb\u6587\n\n\/\/ 2. \u7e70\u308a\u8fd4\u3057\u6587\u5b57\u306b\u3088\u308b\u521d\u671f\u5316\nstd::string str3(5, '*');             \/\/ \"*****\"\u3092\u751f\u6210\n\n\/\/ 3. \u30a4\u30c6\u30ec\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u305f\u521d\u671f\u5316\nstd::vector&lt;char&gt; chars = {'H', 'e', 'l', 'l', 'o'};\nstd::string str4(chars.begin(), chars.end());\n\n\/\/ 4. \u90e8\u5206\u6587\u5b57\u5217\u304b\u3089\u306e\u521d\u671f\u5316\nstd::string original = \"Hello, World!\";\nstd::string str5(original, 0, 5);     \/\/ \"Hello\"\u3092\u62bd\u51fa<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-13\">2. \u30e1\u30e2\u30ea\u4e88\u7d04\u306b\u3088\u308b\u6700\u9069\u5316<\/h4>\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=\"\">\/\/ \u30e1\u30e2\u30ea\u518d\u5272\u308a\u5f53\u3066\u3092\u9632\u3050\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\nstd::string text;\ntext.reserve(1000);  \/\/ 1000\u6587\u5b57\u5206\u306e\u30e1\u30e2\u30ea\u3092\u4e8b\u524d\u306b\u78ba\u4fdd\n\n\/\/ \u5927\u91cf\u306e\u6587\u5b57\u5217\u7d50\u5408\u3092\u884c\u3046\u5834\u5408\u306b\u52b9\u679c\u7684\nfor (int i = 0; i &lt; 1000; ++i) {\n    text += std::to_string(i);\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-14\">3. \u4e00\u6642\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u56de\u907f<\/h4>\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=\"\">\/\/ \u975e\u52b9\u7387\u7684\u306a\u65b9\u6cd5\nstd::string str = std::string(\"Hello\") + \" \" + std::string(\"World\");\n\n\/\/ \u52b9\u7387\u7684\u306a\u65b9\u6cd5\nstd::string str = \"Hello\";\nstr += \" World\";  \/\/ \u4e00\u6642\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u306a\u3044<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-15\">4. \u6587\u5b57\u5217\u30ea\u30c6\u30e9\u30eb\u306e\u9069\u5207\u306a\u4f7f\u7528<\/h4>\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=\"\">\/\/ string_view\u306e\u6d3b\u7528\uff08C++17\u4ee5\u964d\uff09\n#include &lt;string_view&gt;\n\nvoid processString(std::string_view sv) {\n    \/\/ string_view\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u4e0d\u8981\u306a\u30b3\u30d4\u30fc\u3092\u56de\u907f\n    std::cout &lt;&lt; sv &lt;&lt; std::endl;\n}\n\n\/\/ \u4f7f\u7528\u4f8b\nconst char* literal = \"Hello, World!\";\nprocessString(literal);  \/\/ \u30b3\u30d4\u30fc\u306a\u3057\u3067\u6587\u5b57\u5217\u3092\u6e21\u305b\u308b<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u6587\u5b57\u5217\u306e\u9023\u7d50\u3068\u5206\u5272\u3092\u52b9\u7387\u7684\u306b\u884c\u3046\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-17\">1. \u52b9\u7387\u7684\u306a\u6587\u5b57\u5217\u9023\u7d50<\/h4>\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=\"\">\/\/ 1. operator+= \u306e\u4f7f\u7528\nstd::string result = \"Hello\";\nresult += \" \";\nresult += \"World\";\n\n\/\/ 2. append\u306e\u4f7f\u7528\uff08\u8907\u6570\u306e\u8ffd\u52a0\u64cd\u4f5c\uff09\nstd::string text;\ntext.append(\"Hello\")\n    .append(\" \")\n    .append(\"World\");\n\n\/\/ 3. \u6587\u5b57\u5217\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u6d3b\u7528\uff08\u5927\u91cf\u306e\u9023\u7d50\u6642\uff09\n#include &lt;sstream&gt;\nstd::ostringstream oss;\noss &lt;&lt; \"Hello\" &lt;&lt; \" \" &lt;&lt; \"World\" &lt;&lt; \"!\";\nstd::string result = oss.str();<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-18\">2. \u6587\u5b57\u5217\u306e\u5206\u5272\u30c6\u30af\u30cb\u30c3\u30af<\/h4>\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;vector&gt;\n#include &lt;sstream&gt;\n\n\/\/ \u6587\u5b57\u5217\u3092\u533a\u5207\u308a\u6587\u5b57\u3067\u5206\u5272\u3059\u308b\u95a2\u6570\nstd::vector&lt;std::string&gt; split(const std::string&amp; str, char delimiter) {\n    std::vector&lt;std::string&gt; tokens;\n    std::stringstream ss(str);\n    std::string token;\n\n    while (std::getline(ss, token, delimiter)) {\n        if (!token.empty()) {  \/\/ \u7a7a\u306e\u6587\u5b57\u5217\u3092\u30b9\u30ad\u30c3\u30d7\n            tokens.push_back(token);\n        }\n    }\n    return tokens;\n}\n\n\/\/ \u4f7f\u7528\u4f8b\nstd::string input = \"apple,orange,banana\";\nauto fruits = split(input, ',');\n\/\/ fruits = {\"apple\", \"orange\", \"banana\"}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-19\">\u90e8\u5206\u6587\u5b57\u5217\u306e\u62bd\u51fa\u3068\u691c\u7d22\u306e\u305f\u3081\u306e\u5b9f\u88c5\u4f8b<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-20\">1. \u90e8\u5206\u6587\u5b57\u5217\u306e\u62bd\u51fa<\/h4>\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::string text = \"Hello, World!\";\n\n\/\/ 1. substr()\u3092\u4f7f\u7528\u3057\u305f\u62bd\u51fa\nstd::string sub1 = text.substr(0, 5);     \/\/ \"Hello\"\nstd::string sub2 = text.substr(7);        \/\/ \"World!\"\n\n\/\/ 2. \u6587\u5b57\u5217\u30d3\u30e5\u30fc\u3092\u4f7f\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u62bd\u51fa\uff08C++17\u4ee5\u964d\uff09\nstd::string_view sv(text);\nstd::string_view sub3 = sv.substr(0, 5);  \/\/ \u30e1\u30e2\u30ea\u30b3\u30d4\u30fc\u306a\u3057<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-21\">2. \u52b9\u7387\u7684\u306a\u6587\u5b57\u5217\u691c\u7d22<\/h4>\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::string text = \"The quick brown fox jumps over the lazy dog\";\n\n\/\/ 1. \u57fa\u672c\u7684\u306a\u691c\u7d22\nsize_t pos1 = text.find(\"fox\");           \/\/ \u524d\u65b9\u304b\u3089\u306e\u691c\u7d22\nsize_t pos2 = text.rfind(\"the\");          \/\/ \u5f8c\u65b9\u304b\u3089\u306e\u691c\u7d22\n\n\/\/ 2. \u8907\u6570\u306e\u51fa\u73fe\u4f4d\u7f6e\u3092\u898b\u3064\u3051\u308b\nsize_t pos = 0;\nstd::vector&lt;size_t&gt; positions;\nwhile ((pos = text.find(\"the\", pos)) != std::string::npos) {\n    positions.push_back(pos);\n    pos += 3;  \/\/ \u691c\u7d22\u6587\u5b57\u5217\u306e\u9577\u3055\u5206\u9032\u3081\u308b\n}\n\n\/\/ 3. \u6761\u4ef6\u306b\u57fa\u3065\u304f\u691c\u7d22\nbool containsWord(const std::string&amp; text, const std::string&amp; word) {\n    size_t pos = 0;\n    while ((pos = text.find(word, pos)) != std::string::npos) {\n        \/\/ \u5358\u8a9e\u306e\u524d\u5f8c\u304c\u5358\u8a9e\u306e\u533a\u5207\u308a\u6587\u5b57\u304b\u30c1\u30a7\u30c3\u30af\n        bool isWordStart = (pos == 0 || !std::isalpha(text[pos-1]));\n        bool isWordEnd = (pos + word.length() == text.length() || \n                         !std::isalpha(text[pos + word.length()]));\n\n        if (isWordStart &amp;&amp; isWordEnd) {\n            return true;\n        }\n        pos += 1;\n    }\n    return false;\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u6587\u5b57\u5217\u51e6\u7406\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3055\u3089\u306b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u9ad8\u5ea6\u306a\u6587\u5b57\u5217\u51e6\u7406\u30c6\u30af\u30cb\u30c3\u30af\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-22\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3057\u305f\u6587\u5b57\u5217\u51e6\u7406<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-23\">\u30e1\u30e2\u30ea\u52b9\u7387\u3092\u6700\u5927\u5316\u3059\u308bstring\u64cd\u4f5c\u306e\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-24\">1. \u30e1\u30e2\u30ea\u30a2\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u6700\u9069\u5316<\/h4>\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;chrono&gt;\n#include &lt;iostream&gt;\n\nclass StringPerformanceDemo {\npublic:\n    \/\/ \u52b9\u7387\u7684\u306a\u30e1\u30e2\u30ea\u4e88\u7d04\u306e\u4f8b\n    static void demonstrateReserve() {\n        const int iterations = 100000;\n\n        \/\/ reserve()\u3092\u4f7f\u7528\u3057\u306a\u3044\u5834\u5408\n        {\n            auto start = std::chrono::high_resolution_clock::now();\n            std::string withoutReserve;\n            for (int i = 0; i &lt; iterations; ++i) {\n                withoutReserve += \"a\";\n            }\n            auto end = std::chrono::high_resolution_clock::now();\n            std::chrono::duration&lt;double&gt; diff = end - start;\n            std::cout &lt;&lt; \"Without reserve: \" &lt;&lt; diff.count() &lt;&lt; \" seconds\\n\";\n        }\n\n        \/\/ reserve()\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\n        {\n            auto start = std::chrono::high_resolution_clock::now();\n            std::string withReserve;\n            withReserve.reserve(iterations);  \/\/ \u4e8b\u524d\u306b\u30e1\u30e2\u30ea\u3092\u78ba\u4fdd\n            for (int i = 0; i &lt; iterations; ++i) {\n                withReserve += \"a\";\n            }\n            auto end = std::chrono::high_resolution_clock::now();\n            std::chrono::duration&lt;double&gt; diff = end - start;\n            std::cout &lt;&lt; \"With reserve: \" &lt;&lt; diff.count() &lt;&lt; \" seconds\\n\";\n        }\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-25\">2. Small String Optimization (SSO)\u306e\u6d3b\u7528<\/h4>\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=\"\">void demonstrateSSO() {\n    \/\/ SSO\u304c\u52b9\u304f\u30b5\u30a4\u30ba\u306e\u6587\u5b57\u5217\uff08\u901a\u5e3815\u6587\u5b57\u4ee5\u4e0b\uff09\n    std::string small = \"Hello, World!\";\n    std::cout &lt;&lt; \"Capacity for small string: \" &lt;&lt; small.capacity() &lt;&lt; \"\\n\";\n\n    \/\/ SSO\u304c\u52b9\u304b\u306a\u3044\u30b5\u30a4\u30ba\u306e\u6587\u5b57\u5217\n    std::string large(100, 'x');\n    std::cout &lt;&lt; \"Capacity for large string: \" &lt;&lt; large.capacity() &lt;&lt; \"\\n\";\n\n    \/\/ \u30e1\u30e2\u30ea\u52b9\u7387\u3092\u610f\u8b58\u3057\u305f\u6587\u5b57\u5217\u30b5\u30a4\u30ba\u306e\u9078\u629e\u304c\u91cd\u8981\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-26\">3. \u30e0\u30fc\u30d6\u30bb\u30de\u30f3\u30c6\u30a3\u30af\u30b9\u306e\u6d3b\u7528<\/h4>\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::string createEfficientString() {\n    std::string result = \"Large string content\";\n    return result;  \/\/ RVO\uff08Return Value Optimization\uff09\u304c\u50cd\u304f\n}\n\nvoid demonstrateMoveSemantics() {\n    \/\/ \u30e0\u30fc\u30d6\u4ee3\u5165\u3092\u4f7f\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u4ee3\u5165\n    std::string str1;\n    str1 = createEfficientString();  \/\/ \u30e0\u30fc\u30d6\u4ee3\u5165\u304c\u767a\u751f\n\n    \/\/ \u30e0\u30fc\u30d6\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u4f7f\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u521d\u671f\u5316\n    std::string str2 = std::move(str1);  \/\/ str1\u306e\u5185\u5bb9\u3092\u30e0\u30fc\u30d6\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-27\">\u5927\u91cf\u306e\u6587\u5b57\u5217\u51e6\u7406\u306b\u304a\u3051\u308b\u6700\u9069\u5316\u6226\u7565<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-28\">1. \u6587\u5b57\u5217\u9023\u7d50\u306e\u6700\u9069\u5316<\/h4>\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;sstream&gt;\n#include &lt;vector&gt;\n\nclass StringConcatenationOptimizer {\npublic:\n    \/\/ \u7570\u306a\u308b\u9023\u7d50\u65b9\u6cd5\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03\n    static void compareConcat() {\n        std::vector&lt;std::string&gt; strings(1000, \"test\");\n\n        \/\/ 1. operator+ \u306b\u3088\u308b\u9023\u7d50\uff08\u975e\u52b9\u7387\uff09\n        auto start = std::chrono::high_resolution_clock::now();\n        std::string result1;\n        for (const auto&amp; s : strings) {\n            result1 = result1 + s;\n        }\n        auto end = std::chrono::high_resolution_clock::now();\n        std::cout &lt;&lt; \"Operator+ time: \" \n                  &lt;&lt; std::chrono::duration&lt;double&gt;(end - start).count() \n                  &lt;&lt; \"s\\n\";\n\n        \/\/ 2. operator+= \u306b\u3088\u308b\u9023\u7d50\uff08\u52b9\u7387\u7684\uff09\n        start = std::chrono::high_resolution_clock::now();\n        std::string result2;\n        result2.reserve(strings.size() * 4);  \/\/ \u4e88\u6e2c\u3055\u308c\u308b\u30b5\u30a4\u30ba\u3092\u4e88\u7d04\n        for (const auto&amp; s : strings) {\n            result2 += s;\n        }\n        end = std::chrono::high_resolution_clock::now();\n        std::cout &lt;&lt; \"Operator+= time: \" \n                  &lt;&lt; std::chrono::duration&lt;double&gt;(end - start).count() \n                  &lt;&lt; \"s\\n\";\n\n        \/\/ 3. StringStream \u306b\u3088\u308b\u9023\u7d50\uff08\u5927\u91cf\u30c7\u30fc\u30bf\u306b\u52b9\u679c\u7684\uff09\n        start = std::chrono::high_resolution_clock::now();\n        std::ostringstream oss;\n        for (const auto&amp; s : strings) {\n            oss &lt;&lt; s;\n        }\n        std::string result3 = oss.str();\n        end = std::chrono::high_resolution_clock::now();\n        std::cout &lt;&lt; \"StringStream time: \" \n                  &lt;&lt; std::chrono::duration&lt;double&gt;(end - start).count() \n                  &lt;&lt; \"s\\n\";\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-29\">2. \u30e1\u30e2\u30ea\u30d7\u30fc\u30eb\u306e\u6d3b\u7528<\/h4>\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;memory_resource&gt;\n\nclass StringPoolOptimizer {\npublic:\n    static void demonstrateMemoryPool() {\n        \/\/ \u56fa\u5b9a\u30b5\u30a4\u30ba\u306e\u30e1\u30e2\u30ea\u30d7\u30fc\u30eb\u3092\u4f5c\u6210\n        char buffer[4096];\n        std::pmr::monotonic_buffer_resource pool(buffer, sizeof(buffer));\n\n        \/\/ \u30d7\u30fc\u30eb\u4e0a\u306b\u6587\u5b57\u5217\u3092\u914d\u7f6e\n        std::pmr::string str1(&amp;pool);\n        str1 = \"Hello, World!\";\n\n        \/\/ \u8907\u6570\u306e\u6587\u5b57\u5217\u3092\u30d7\u30fc\u30eb\u4e0a\u3067\u7ba1\u7406\n        std::pmr::vector&lt;std::pmr::string&gt; strings(&amp;pool);\n        strings.reserve(100);\n        for (int i = 0; i &lt; 100; ++i) {\n            strings.emplace_back(\"Test string \" + std::to_string(i), &amp;pool);\n        }\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-30\">3. \u6587\u5b57\u5217\u51e6\u7406\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\u306e\u6700\u5c0f\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u53ef\u80fd\u306a\u9650\u308a<code>reserve()<\/code>\u3092\u4f7f\u7528<\/li>\n\n\n\n<li>SSO\u7bc4\u56f2\u5185\u306e\u6587\u5b57\u5217\u30b5\u30a4\u30ba\u3092\u610f\u8b58<\/li>\n\n\n\n<li>\u4e0d\u8981\u306a\u4e00\u6642\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u751f\u6210\u3092\u56de\u907f<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u52b9\u7387\u7684\u306a\u691c\u7d22\u3068\u7f6e\u63db<\/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 StringSearchOptimizer {\n   public:\n       static void demonstrateEfficientSearch() {\n           std::string text = \"This is a test string for searching\";\n           std::string pattern = \"test\";\n\n           \/\/ Boyer-Moore\u98a8\u306e\u691c\u7d22\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u5b9f\u88c5\n           size_t pos = text.find(pattern);  \/\/ \u6a19\u6e96\u306efind\u306f\u5185\u90e8\u3067\u6700\u9069\u5316\u6e08\u307f\n\n           \/\/ \u8907\u6570\u56de\u306e\u7f6e\u63db\u3092\u52b9\u7387\u7684\u306b\u884c\u3046\n           std::string&amp; replaceAll(std::string&amp; text, \n                                 const std::string&amp; from, \n                                 const std::string&amp; to) {\n               size_t pos = 0;\n               while ((pos = text.find(from, pos)) != std::string::npos) {\n                   text.replace(pos, from.length(), to);\n                   pos += to.length();\n               }\n               return text;\n           }\n       }\n   };<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6e2c\u5b9a\u3068\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\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=\"\">   class StringProfiler {\n   public:\n       template&lt;typename Func&gt;\n       static double measureExecutionTime(Func&amp;&amp; func) {\n           auto start = std::chrono::high_resolution_clock::now();\n           func();\n           auto end = std::chrono::high_resolution_clock::now();\n           return std::chrono::duration&lt;double&gt;(end - start).count();\n       }\n   };<\/pre>\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\u6587\u5b57\u5217\u51e6\u7406\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u3092\u6271\u3046\u5834\u5408\u306f\u3001\u30e1\u30e2\u30ea\u7ba1\u7406\u3068\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u9078\u629e\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u65e5\u672c\u8a9e\u306a\u3069\u306e\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u3078\u306e\u5bfe\u5fdc\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-31\">\u65e5\u672c\u8a9e\u306a\u3069\u306e\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u3078\u306e\u5bfe\u5fdc<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-32\">\u6587\u5b57\u30b3\u30fc\u30c9\u306e\u7406\u89e3\u3068\u9069\u5207\u306a\u51e6\u7406\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-33\">1. \u6587\u5b57\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u57fa\u790e<\/h4>\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;locale&gt;\n#include &lt;codecvt&gt;\n#include &lt;iostream&gt;\n\nclass EncodingHandler {\npublic:\n    \/\/ UTF-8\u3068\u30ef\u30a4\u30c9\u6587\u5b57\u5217\uff08UTF-16\/32\uff09\u306e\u76f8\u4e92\u5909\u63db\n    static std::wstring utf8ToWide(const std::string&amp; utf8Str) {\n        std::wstring_convert&lt;std::codecvt_utf8_utf16&lt;wchar_t&gt;&gt; converter;\n        return converter.from_bytes(utf8Str);\n    }\n\n    static std::string wideToUtf8(const std::wstring&amp; wideStr) {\n        std::wstring_convert&lt;std::codecvt_utf8_utf16&lt;wchar_t&gt;&gt; converter;\n        return converter.to_bytes(wideStr);\n    }\n\n    \/\/ \u6587\u5b57\u5217\u306e\u9577\u3055\u3092\u6b63\u3057\u304f\u30ab\u30a6\u30f3\u30c8\uff08\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u3092\u8003\u616e\uff09\n    static size_t getCharacterCount(const std::string&amp; utf8Str) {\n        return utf8ToWide(utf8Str).length();\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid demonstrateEncoding() {\n    std::string japaneseText = \"\u3053\u3093\u306b\u3061\u306f\u4e16\u754c\";\n    std::wstring wideText = EncodingHandler::utf8ToWide(japaneseText);\n\n    std::cout &lt;&lt; \"\u30d0\u30a4\u30c8\u6570: \" &lt;&lt; japaneseText.size() &lt;&lt; std::endl;\n    std::cout &lt;&lt; \"\u6587\u5b57\u6570: \" &lt;&lt; EncodingHandler::getCharacterCount(japaneseText) &lt;&lt; std::endl;\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-34\">2. \u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u306e\u64cd\u4f5c<\/h4>\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 MultibyteHandler {\npublic:\n    \/\/ \u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u5217\u306e\u5b89\u5168\u306a\u90e8\u5206\u6587\u5b57\u5217\u62bd\u51fa\n    static std::string safeSubstr(const std::string&amp; str, size_t start, size_t length) {\n        std::wstring wide = EncodingHandler::utf8ToWide(str);\n        if (start &gt;= wide.length()) return \"\";\n\n        std::wstring wideSub = wide.substr(start, length);\n        return EncodingHandler::wideToUtf8(wideSub);\n    }\n\n    \/\/ \u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u5217\u306e\u53cd\u8ee2\n    static std::string reverseString(const std::string&amp; str) {\n        std::wstring wide = EncodingHandler::utf8ToWide(str);\n        std::reverse(wide.begin(), wide.end());\n        return EncodingHandler::wideToUtf8(wide);\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid demonstrateMultibyte() {\n    std::string text = \"\u3042\u3044\u3046\u3048\u304a\";\n    std::string sub = MultibyteHandler::safeSubstr(text, 1, 2);  \/\/ \"\u3044\u3046\"\n    std::string reversed = MultibyteHandler::reverseString(text); \/\/ \"\u304a\u3048\u3046\u3044\u3042\"\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-35\">\u30ed\u30b1\u30fc\u30eb\u8a2d\u5b9a\u306b\u3088\u308b\u56fd\u969b\u5316\u5bfe\u5fdc\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-36\">1. \u30ed\u30b1\u30fc\u30eb\u306e\u8a2d\u5b9a\u3068\u4f7f\u7528<\/h4>\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 LocaleHandler {\npublic:\n    static void setupJapaneseLocale() {\n        try {\n            \/\/ \u65e5\u672c\u8a9e\u30ed\u30b1\u30fc\u30eb\u306e\u8a2d\u5b9a\n            std::locale::global(std::locale(\"ja_JP.UTF-8\"));\n            std::wcout.imbue(std::locale(\"ja_JP.UTF-8\"));\n            std::wcin.imbue(std::locale(\"ja_JP.UTF-8\"));\n        } catch (const std::runtime_error&amp; e) {\n            std::cerr &lt;&lt; \"\u30ed\u30b1\u30fc\u30eb\u8a2d\u5b9a\u30a8\u30e9\u30fc: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n        }\n    }\n\n    \/\/ \u7167\u5408\u9806\u5e8f\u3092\u8003\u616e\u3057\u305f\u6587\u5b57\u5217\u6bd4\u8f03\n    static bool compareStrings(const std::string&amp; str1, const std::string&amp; str2) {\n        std::wstring wide1 = EncodingHandler::utf8ToWide(str1);\n        std::wstring wide2 = EncodingHandler::utf8ToWide(str2);\n\n        std::locale loc(\"ja_JP.UTF-8\");\n        const std::collate&lt;wchar_t&gt;&amp; coll = std::use_facet&lt;std::collate&lt;wchar_t&gt;&gt;(loc);\n\n        return coll.compare(wide1.data(), wide1.data() + wide1.length(),\n                          wide2.data(), wide2.data() + wide2.length()) &lt; 0;\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-37\">2. \u65e5\u672c\u8a9e\u30c6\u30ad\u30b9\u30c8\u306e\u51e6\u7406\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3<\/h4>\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 JapaneseTextUtil {\npublic:\n    \/\/ \u534a\u89d2\u30ab\u30bf\u30ab\u30ca\u3092\u5168\u89d2\u30ab\u30bf\u30ab\u30ca\u306b\u5909\u63db\n    static std::string convertHalfToFullKata(const std::string&amp; input) {\n        static const std::map&lt;std::string, std::string&gt; conversionTable = {\n            {\"\uff71\", \"\u30a2\"}, {\"\uff72\", \"\u30a4\"}, {\"\uff73\", \"\u30a6\"}  \/\/ \u4ed6\u306e\u6587\u5b57\u3082\u540c\u69d8\u306b\u8ffd\u52a0\n        };\n\n        std::string result = input;\n        for (const auto&amp; pair : conversionTable) {\n            size_t pos = 0;\n            while ((pos = result.find(pair.first, pos)) != std::string::npos) {\n                result.replace(pos, pair.first.length(), pair.second);\n                pos += pair.second.length();\n            }\n        }\n        return result;\n    }\n\n    \/\/ \u3072\u3089\u304c\u306a\u3092\u30ab\u30bf\u30ab\u30ca\u306b\u5909\u63db\n    static std::string convertHiraganaToKatakana(const std::string&amp; input) {\n        std::wstring wide = EncodingHandler::utf8ToWide(input);\n        for (wchar_t&amp; c : wide) {\n            if (c &gt;= 0x3041 &amp;&amp; c &lt;= 0x3096) {  \/\/ \u3072\u3089\u304c\u306a\u306e\u7bc4\u56f2\n                c += 0x60;  \/\/ \u30ab\u30bf\u30ab\u30ca\u3068\u306e\u5dee\u5206\n            }\n        }\n        return EncodingHandler::wideToUtf8(wide);\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid demonstrateJapaneseProcessing() {\n    LocaleHandler::setupJapaneseLocale();\n\n    std::string text1 = \"\uff7a\uff9d\uff86\uff81\uff8a\";\n    std::string text2 = JapaneseTextUtil::convertHalfToFullKata(text1);  \/\/ \"\u30b3\u30f3\u30cb\u30c1\u30cf\"\n\n    std::string text3 = \"\u3053\u3093\u306b\u3061\u306f\";\n    std::string text4 = JapaneseTextUtil::convertHiraganaToKatakana(text3);  \/\/ \"\u30b3\u30f3\u30cb\u30c1\u30cf\"\n\n    \/\/ \u6587\u5b57\u5217\u306e\u6bd4\u8f03\n    std::vector&lt;std::string&gt; words = {\"\u3042\u304b\", \"\u3044\u308d\u306f\", \"\u3046\u3048\u304a\"};\n    std::sort(words.begin(), words.end(), \n             [](const std::string&amp; a, const std::string&amp; b) {\n                 return LocaleHandler::compareStrings(a, b);\n             });\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-38\">\u30a8\u30e9\u30fc\u51e6\u7406\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30a8\u30e9\u30fc\u306e\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=\"\">   class EncodingErrorHandler {\n   public:\n       static std::string safeConversion(const std::string&amp; input) {\n           try {\n               std::wstring wide = EncodingHandler::utf8ToWide(input);\n               return EncodingHandler::wideToUtf8(wide);\n           } catch (const std::exception&amp; e) {\n               std::cerr &lt;&lt; \"\u5909\u63db\u30a8\u30e9\u30fc: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n               return \"\";  \/\/ \u30a8\u30e9\u30fc\u6642\u306e\u4ee3\u66ff\u5024\n           }\n       }\n   };<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u6587\u5b57\u30b3\u30fc\u30c9\u306e\u691c\u8a3c<\/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 CharacterValidator {\n   public:\n       static bool isValidUtf8(const std::string&amp; str) {\n           try {\n               EncodingHandler::utf8ToWide(str);\n               return true;\n           } catch (...) {\n               return false;\n           }\n       }\n   };<\/pre>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u95a2\u3059\u308b\u6ce8\u610f\u70b9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6587\u5b57\u30b3\u30fc\u30c9\u5909\u63db\u306f\u6bd4\u8f03\u7684\u30b3\u30b9\u30c8\u306e\u9ad8\u3044\u64cd\u4f5c<\/li>\n\n\n\n<li>\u5fc5\u8981\u306a\u5834\u5408\u306e\u307f\u5909\u63db\u3092\u884c\u3046<\/li>\n\n\n\n<li>\u53ef\u80fd\u306a\u9650\u308a\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6d3b\u7528<\/li>\n\n\n\n<li>\u5927\u91cf\u306e\u30c6\u30ad\u30b9\u30c8\u51e6\u7406\u6642\u306f\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u3092\u691c\u8a0e<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u88c5\u3092\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u65e5\u672c\u8a9e\u3092\u542b\u3080\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u3092\u5b89\u5168\u304b\u3064\u52b9\u7387\u7684\u306b\u51e6\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u6587\u5b57\u5217\u51e6\u7406\u306e\u5fdc\u7528\u30c6\u30af\u30cb\u30c3\u30af\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-39\">\u6587\u5b57\u5217\u51e6\u7406\u306e\u5fdc\u7528\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-40\">\u6b63\u898f\u8868\u73fe\u3092\u6d3b\u7528\u3057\u305f\u9ad8\u5ea6\u306a\u6587\u5b57\u5217\u64cd\u4f5c<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-41\">1. std::regex\u306e\u57fa\u672c\u7684\u306a\u4f7f\u7528\u65b9\u6cd5<\/h4>\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;regex&gt;\n#include &lt;string&gt;\n#include &lt;iostream&gt;\n\nclass RegexProcessor {\npublic:\n    \/\/ \u6587\u5b57\u5217\u306e\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\n    static bool isValidEmail(const std::string&amp; email) {\n        const std::regex pattern(R\"([a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,})\");\n        return std::regex_match(email, pattern);\n    }\n\n    \/\/ \u30d1\u30bf\u30fc\u30f3\u306b\u57fa\u3065\u304f\u6587\u5b57\u5217\u306e\u7f6e\u63db\n    static std::string maskCreditCard(const std::string&amp; text) {\n        std::regex pattern(R\"(\\d{4}-\\d{4}-\\d{4}-\\d{4})\");\n        return std::regex_replace(text, pattern, \n            [](const std::smatch&amp; m) {\n                return \"****-****-****-\" + m.str().substr(15);\n            });\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid demonstrateRegex() {\n    std::string email = \"user@example.com\";\n    std::cout &lt;&lt; \"Valid email: \" &lt;&lt; RegexProcessor::isValidEmail(email) &lt;&lt; std::endl;\n\n    std::string text = \"Card: 1234-5678-9012-3456\";\n    std::cout &lt;&lt; RegexProcessor::maskCreditCard(text) &lt;&lt; std::endl;\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-42\">2. \u9ad8\u5ea6\u306a\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3<\/h4>\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 AdvancedRegexProcessor {\npublic:\n    \/\/ \u540d\u524d\u4ed8\u304d\u30ad\u30e3\u30d7\u30c1\u30e3\u30b0\u30eb\u30fc\u30d7\u306e\u4f7f\u7528\n    static std::map&lt;std::string, std::string&gt; parseLogEntry(const std::string&amp; log) {\n        std::regex pattern(R\"((?P&lt;date&gt;\\d{4}-\\d{2}-\\d{2}) (?P&lt;time&gt;\\d{2}:\\d{2}:\\d{2}) \\[(?P&lt;level&gt;\\w+)\\] (?P&lt;message&gt;.*))\");\n        std::smatch matches;\n        std::map&lt;std::string, std::string&gt; result;\n\n        if (std::regex_search(log, matches, pattern)) {\n            result[\"date\"] = matches[\"date\"];\n            result[\"time\"] = matches[\"time\"];\n            result[\"level\"] = matches[\"level\"];\n            result[\"message\"] = matches[\"message\"];\n        }\n        return result;\n    }\n\n    \/\/ \u8907\u6570\u30de\u30c3\u30c1\u306e\u51e6\u7406\n    static std::vector&lt;std::string&gt; extractUrls(const std::string&amp; text) {\n        std::regex urlPattern(R\"((https?:\/\/[^\\s]+))\");\n        std::vector&lt;std::string&gt; urls;\n\n        auto words_begin = std::sregex_iterator(\n            text.begin(), text.end(), urlPattern);\n        auto words_end = std::sregex_iterator();\n\n        for (std::sregex_iterator i = words_begin; i != words_end; ++i) {\n            urls.push_back((*i)[0]);\n        }\n        return urls;\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-43\">\u6587\u5b57\u5217\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u4f7f\u7528\u3057\u305f\u5165\u51fa\u529b\u51e6\u7406<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-44\">1. \u9ad8\u5ea6\u306a\u30b9\u30c8\u30ea\u30fc\u30e0\u64cd\u4f5c<\/h4>\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;sstream&gt;\n#include &lt;iomanip&gt;\n\nclass StreamProcessor {\npublic:\n    \/\/ CSV\u5f62\u5f0f\u306e\u30c7\u30fc\u30bf\u51e6\u7406\n    static std::vector&lt;std::vector&lt;std::string&gt;&gt; parseCSV(const std::string&amp; csv) {\n        std::vector&lt;std::vector&lt;std::string&gt;&gt; result;\n        std::istringstream stream(csv);\n        std::string line;\n\n        while (std::getline(stream, line)) {\n            std::vector&lt;std::string&gt; row;\n            std::istringstream lineStream(line);\n            std::string cell;\n\n            while (std::getline(lineStream, cell, ',')) {\n                \/\/ \u524d\u5f8c\u306e\u7a7a\u767d\u3092\u9664\u53bb\n                cell = std::regex_replace(cell, std::regex(\"^\\\\s+|\\\\s+$\"), \"\");\n                row.push_back(cell);\n            }\n            result.push_back(row);\n        }\n        return result;\n    }\n\n    \/\/ \u6570\u5024\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\n    static std::string formatNumber(double number, int precision = 2) {\n        std::ostringstream stream;\n        stream &lt;&lt; std::fixed &lt;&lt; std::setprecision(precision) &lt;&lt; number;\n        return stream.str();\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-45\">2. \u30ab\u30b9\u30bf\u30e0\u30b9\u30c8\u30ea\u30fc\u30e0\u30de\u30cb\u30d4\u30e5\u30ec\u30fc\u30bf<\/h4>\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 CustomManipulators {\npublic:\n    \/\/ \u30a4\u30f3\u30c7\u30f3\u30c8\u7528\u30de\u30cb\u30d4\u30e5\u30ec\u30fc\u30bf\n    class Indent {\n        int level;\n    public:\n        explicit Indent(int l) : level(l) {}\n        friend std::ostream&amp; operator&lt;&lt;(std::ostream&amp; os, const Indent&amp; ind) {\n            return os &lt;&lt; std::string(ind.level * 2, ' ');\n        }\n    };\n\n    \/\/ JSON\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u7528\u30de\u30cb\u30d4\u30e5\u30ec\u30fc\u30bf\n    static std::string formatJSON(const std::string&amp; input) {\n        std::istringstream iss(input);\n        std::ostringstream oss;\n        int indent = 0;\n        char c;\n\n        while (iss.get(c)) {\n            switch (c) {\n                case '{':\n                case '[':\n                    oss &lt;&lt; c &lt;&lt; '\\n' &lt;&lt; Indent(++indent);\n                    break;\n                case '}':\n                case ']':\n                    oss &lt;&lt; '\\n' &lt;&lt; Indent(--indent) &lt;&lt; c;\n                    break;\n                case ',':\n                    oss &lt;&lt; c &lt;&lt; '\\n' &lt;&lt; Indent(indent);\n                    break;\n                default:\n                    oss &lt;&lt; c;\n            }\n        }\n        return oss.str();\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-46\">\u6587\u5b57\u5217\u5909\u63db\u306b\u304a\u3051\u308b\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-47\">1. \u5b89\u5168\u306a\u578b\u5909\u63db<\/h4>\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 SafeConverter {\npublic:\n    \/\/ \u6587\u5b57\u5217\u304b\u3089\u6570\u5024\u3078\u306e\u5b89\u5168\u306a\u5909\u63db\n    template&lt;typename T&gt;\n    static std::optional&lt;T&gt; toNumber(const std::string&amp; str) {\n        try {\n            size_t pos;\n            T value;\n\n            if constexpr (std::is_same_v&lt;T, int&gt;) {\n                value = std::stoi(str, &amp;pos);\n            } else if constexpr (std::is_same_v&lt;T, double&gt;) {\n                value = std::stod(str, &amp;pos);\n            }\n\n            if (pos != str.length()) {\n                return std::nullopt;  \/\/ \u90e8\u5206\u7684\u306a\u5909\u63db\u306f\u5931\u6557\u3068\u307f\u306a\u3059\n            }\n            return value;\n        } catch (...) {\n            return std::nullopt;\n        }\n    }\n\n    \/\/ \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u4ed8\u304d\u306e\u5909\u63db\n    template&lt;typename T&gt;\n    static std::pair&lt;std::optional&lt;T&gt;, std::string&gt; toNumberWithError(\n            const std::string&amp; str) {\n        try {\n            auto result = toNumber&lt;T&gt;(str);\n            if (result) {\n                return {result, \"\"};\n            }\n            return {std::nullopt, \"Invalid format\"};\n        } catch (const std::out_of_range&amp;) {\n            return {std::nullopt, \"Value out of range\"};\n        } catch (const std::exception&amp; e) {\n            return {std::nullopt, e.what()};\n        }\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nvoid demonstrateSafeConversion() {\n    auto [value1, error1] = SafeConverter::toNumberWithError&lt;int&gt;(\"123\");\n    auto [value2, error2] = SafeConverter::toNumberWithError&lt;double&gt;(\"123.45\");\n    auto [value3, error3] = SafeConverter::toNumberWithError&lt;int&gt;(\"invalid\");\n}<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-48\">2. \u30a8\u30e9\u30fc\u56de\u5fa9\u6226\u7565<\/h4>\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 ErrorRecovery {\npublic:\n    \/\/ \u5931\u6557\u6642\u306e\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u5024\u3092\u4f7f\u7528\n    template&lt;typename T&gt;\n    static T convertWithFallback(const std::string&amp; str, T fallback) {\n        auto result = SafeConverter::toNumber&lt;T&gt;(str);\n        return result.value_or(fallback);\n    }\n\n    \/\/ \u8907\u6570\u306e\u5909\u63db\u65b9\u6cd5\u3092\u8a66\u884c\n    static double smartNumberParse(const std::string&amp; str) {\n        \/\/ 1. \u76f4\u63a5\u7684\u306a\u5909\u63db\u3092\u8a66\u307f\u308b\n        if (auto result = SafeConverter::toNumber&lt;double&gt;(str)) {\n            return *result;\n        }\n\n        \/\/ 2. \u30ab\u30f3\u30de\u3092\u9664\u53bb\u3057\u3066\u8a66\u884c\n        std::string noComma = std::regex_replace(str, std::regex(\",\"), \"\");\n        if (auto result = SafeConverter::toNumber&lt;double&gt;(noComma)) {\n            return *result;\n        }\n\n        \/\/ 3. \u30d1\u30fc\u30bb\u30f3\u30c8\u8a18\u53f7\u3092\u51e6\u7406\n        if (str.ends_with(\"%\")) {\n            if (auto result = SafeConverter::toNumber&lt;double&gt;(\n                    str.substr(0, str.length() - 1))) {\n                return *result \/ 100.0;\n            }\n        }\n\n        throw std::invalid_argument(\"Unable to parse number: \" + str);\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5fdc\u7528\u30c6\u30af\u30cb\u30c3\u30af\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u3067\u67d4\u8edf\u306a\u6587\u5b57\u5217\u51e6\u7406\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3088\u304f\u3042\u308b\u30d0\u30b0\u3068\u5bfe\u51e6\u65b9\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-49\">\u3088\u304f\u3042\u308b\u30d0\u30b0\u3068\u5bfe\u51e6\u65b9\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-50\">\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050\u305f\u3081\u306e\u6ce8\u610f\u70b9\u3068\u5bfe\u7b56<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-51\">1. \u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306e\u6d3b\u7528<\/h4>\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;memory&gt;\n#include &lt;string&gt;\n#include &lt;vector&gt;\n\nclass StringContainer {\nprivate:\n    \/\/ \u751f\u30dd\u30a4\u30f3\u30bf\u306e\u4ee3\u308f\u308a\u306b\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u3092\u4f7f\u7528\n    std::unique_ptr&lt;std::string&gt; stringPtr;\n    std::vector&lt;std::shared_ptr&lt;std::string&gt;&gt; stringList;\n\npublic:\n    \/\/ \u30e1\u30e2\u30ea\u5b89\u5168\u306a\u6587\u5b57\u5217\u306e\u8ffd\u52a0\n    void addString(const std::string&amp; str) {\n        stringPtr = std::make_unique&lt;std::string&gt;(str);\n        stringList.push_back(std::make_shared&lt;std::string&gt;(str));\n    }\n\n    \/\/ \u30ea\u30bd\u30fc\u30b9\u306e\u81ea\u52d5\u89e3\u653e\n    void processStrings() {\n        for (const auto&amp; ptr : stringList) {\n            \/\/ \u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306f\u81ea\u52d5\u7684\u306b\u89e3\u653e\u3055\u308c\u308b\n            std::cout &lt;&lt; *ptr &lt;&lt; std::endl;\n        }\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-52\">2. RAII\u539f\u5247\u306e\u9069\u7528<\/h4>\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 StringBuffer {\nprivate:\n    std::vector&lt;char&gt; buffer;\n\npublic:\n    \/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u30ea\u30bd\u30fc\u30b9\u3092\u78ba\u4fdd\n    StringBuffer(size_t size) : buffer(size) {}\n\n    \/\/ \u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u81ea\u52d5\u7684\u306b\u89e3\u653e\n    ~StringBuffer() = default;  \/\/ vector\u304c\u81ea\u52d5\u7684\u306b\u30e1\u30e2\u30ea\u3092\u89e3\u653e\n\n    \/\/ \u30b3\u30d4\u30fc\u3068\u79fb\u52d5\u306e\u9069\u5207\u306a\u5b9f\u88c5\n    StringBuffer(const StringBuffer&amp;) = delete;  \/\/ \u30b3\u30d4\u30fc\u7981\u6b62\n    StringBuffer&amp; operator=(const StringBuffer&amp;) = delete;\n\n    StringBuffer(StringBuffer&amp;&amp;) noexcept = default;  \/\/ \u79fb\u52d5\u306f\u8a31\u53ef\n    StringBuffer&amp; operator=(StringBuffer&amp;&amp;) noexcept = default;\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-53\">3. \u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u691c\u51fa\u30c4\u30fc\u30eb\u306e\u6d3b\u7528<\/h4>\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 MemoryLeakDetector {\npublic:\n    static void enableLeakDetection() {\n        #ifdef _DEBUG\n            _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);\n        #endif\n    }\n\n    static void setBreakpoint(long breakPointId) {\n        #ifdef _DEBUG\n            _CrtSetBreakAlloc(breakPointId);\n        #endif\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-54\">\u30d0\u30c3\u30d5\u30a1\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u3092\u9632\u3050\u5b89\u5168\u306a\u5b9f\u88c5\u65b9\u6cd5<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-55\">1. \u5883\u754c\u30c1\u30a7\u30c3\u30af\u306e\u5b9f\u88c5<\/h4>\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 SafeStringBuffer {\nprivate:\n    std::vector&lt;char&gt; buffer;\n    size_t currentSize;\n\npublic:\n    SafeStringBuffer(size_t capacity) \n        : buffer(capacity), currentSize(0) {}\n\n    \/\/ \u5b89\u5168\u306a\u6587\u5b57\u8ffd\u52a0\n    bool appendChar(char c) {\n        if (currentSize &gt;= buffer.size()) {\n            return false;  \/\/ \u30d0\u30c3\u30d5\u30a1\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u9632\u6b62\n        }\n        buffer[currentSize++] = c;\n        return true;\n    }\n\n    \/\/ \u5b89\u5168\u306a\u6587\u5b57\u5217\u8ffd\u52a0\n    bool appendString(const std::string&amp; str) {\n        if (currentSize + str.length() &gt; buffer.size()) {\n            return false;  \/\/ \u30d0\u30c3\u30d5\u30a1\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u9632\u6b62\n        }\n        std::copy(str.begin(), str.end(), buffer.begin() + currentSize);\n        currentSize += str.length();\n        return true;\n    }\n\n    \/\/ \u5b89\u5168\u306a\u30a2\u30af\u30bb\u30b9\n    std::optional&lt;char&gt; at(size_t index) const {\n        if (index &gt;= currentSize) {\n            return std::nullopt;\n        }\n        return buffer[index];\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-56\">2. \u5165\u529b\u691c\u8a3c\u306e\u5b9f\u88c5<\/h4>\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 InputValidator {\npublic:\n    \/\/ \u6587\u5b57\u5217\u9577\u306e\u691c\u8a3c\n    static bool validateLength(const std::string&amp; input, size_t maxLength) {\n        return input.length() &lt;= maxLength;\n    }\n\n    \/\/ \u6587\u5b57\u7a2e\u306e\u691c\u8a3c\n    static bool validateCharacters(const std::string&amp; input, \n                                 const std::string&amp; allowedChars) {\n        return input.find_first_not_of(allowedChars) == std::string::npos;\n    }\n\n    \/\/ SQL\u6ce8\u5165\u5bfe\u7b56\n    static std::string escapeSQLString(const std::string&amp; input) {\n        std::string result;\n        result.reserve(input.length() * 2);\n\n        for (char c : input) {\n            switch (c) {\n                case '\\'':\n                case '\"':\n                case '\\\\':\n                    result += '\\\\';\n                    [[fallthrough]];\n                default:\n                    result += c;\n            }\n        }\n        return result;\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-57\">3. \u30bb\u30fc\u30d5\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\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 SafeStringOperations {\npublic:\n    \/\/ \u5b89\u5168\u306a\u6587\u5b57\u5217\u7d50\u5408\n    static std::string safeConcat(const std::string&amp; str1, \n                                 const std::string&amp; str2) {\n        try {\n            if (str1.length() &gt; std::string::max_size() - str2.length()) {\n                throw std::length_error(\"Concatenation would exceed maximum string length\");\n            }\n            return str1 + str2;\n        } catch (const std::exception&amp; e) {\n            \/\/ \u30a8\u30e9\u30fc\u30ed\u30b0\u8a18\u9332\u3084\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\n            throw;\n        }\n    }\n\n    \/\/ \u5b89\u5168\u306a\u90e8\u5206\u6587\u5b57\u5217\u53d6\u5f97\n    static std::string safeSubstring(const std::string&amp; str, \n                                   size_t start, \n                                   size_t length) {\n        try {\n            return str.substr(std::min(start, str.length()), \n                            std::min(length, str.length() - start));\n        } catch (const std::exception&amp; e) {\n            \/\/ \u30a8\u30e9\u30fc\u30ed\u30b0\u8a18\u9332\u3084\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\n            return \"\";\n        }\n    }\n};<\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"i-58\">\u30c7\u30d0\u30c3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30a2\u30b5\u30fc\u30b7\u30e7\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=\"\">class StringDebugger {\npublic:\n    static void validateString(const std::string&amp; str) {\n        assert(!str.empty() &amp;&amp; \"String should not be empty\");\n        assert(str.length() &lt;= 1000 &amp;&amp; \"String too long\");\n    }\n\n    static void validateBufferSize(size_t size) {\n        assert(size &gt; 0 &amp;&amp; size &lt;= 1024 * 1024 &amp;&amp; \"Invalid buffer size\");\n    }\n};<\/pre>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>\u30ed\u30b0\u51fa\u529b\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=\"\">class StringLogger {\npublic:\n    enum class LogLevel { DEBUG, INFO, WARNING, ERROR };\n\n    static void log(LogLevel level, const std::string&amp; message) {\n        std::string prefix;\n        switch (level) {\n            case LogLevel::DEBUG: prefix = \"[DEBUG] \"; break;\n            case LogLevel::INFO: prefix = \"[INFO] \"; break;\n            case LogLevel::WARNING: prefix = \"[WARNING] \"; break;\n            case LogLevel::ERROR: prefix = \"[ERROR] \"; break;\n        }\n\n        std::cerr &lt;&lt; prefix &lt;&lt; message &lt;&lt; std::endl;\n    }\n\n    static void logStringOperation(const std::string&amp; operation, \n                                 const std::string&amp; input) {\n        log(LogLevel::DEBUG, \n            operation + \": length=\" + std::to_string(input.length()));\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5bfe\u7b56\u3092\u9069\u5207\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u6587\u5b57\u5217\u51e6\u7406\u306b\u95a2\u3059\u308b\u4e00\u822c\u7684\u306a\u30d0\u30b0\u3092\u9632\u304e\u3001\u3088\u308a\u5b89\u5168\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u554f\u984c\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3067\u3082\u3001\u9069\u5207\u306a\u30c7\u30d0\u30c3\u30b0\u60c5\u5831\u3084\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306b\u3088\u308a\u3001\u8fc5\u901f\u306a\u554f\u984c\u89e3\u6c7a\u304c\u53ef\u80fd\u306b\u306a\u308a\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-1908","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\/1908","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=1908"}],"version-history":[{"count":1,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1908\/revisions"}],"predecessor-version":[{"id":1909,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/1908\/revisions\/1909"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1908"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1908"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1908"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}