{"id":2104,"date":"2025-03-24T08:48:17","date_gmt":"2025-03-23T23:48:17","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=2104"},"modified":"2025-03-24T08:48:44","modified_gmt":"2025-03-23T23:48:44","slug":"%e3%80%90%e4%bf%9d%e5%ad%98%e7%89%88%e3%80%91c%e3%81%a7%e4%bd%9c%e3%82%8b%e9%ab%98%e9%80%9f%e3%83%bb%e5%ae%89%e5%85%a8%e3%81%aa%e7%8b%ac%e8%87%aa%e3%83%ad%e3%82%b0%e3%82%b7%e3%82%b9%e3%83%86","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=2104","title":{"rendered":"\u3010\u4fdd\u5b58\u7248\u3011C++\u3067\u4f5c\u308b\u9ad8\u901f\u30fb\u5b89\u5168\u306a\u72ec\u81ea\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\uff01\u5b9f\u88c5\u4f8b\u4ed8\u304d\u89e3\u8aac"},"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++\u3067\u30ed\u30b0\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u91cd\u8981\u6027\u3068\u30e1\u30ea\u30c3\u30c8<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u30c7\u30d0\u30c3\u30b0\u52b9\u7387\u309210\u500d\u306b\u3059\u308b\u6226\u7565\u7684\u306a\u30ed\u30b0\u8a2d\u8a08<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">\u30b7\u30b9\u30c6\u30e0\u306e\u4fe1\u983c\u6027\u3092\u9ad8\u3081\u308b\u30ed\u30b0\u306e\u6d3b\u7528\u65b9\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">C++\u3067\u306e\u52b9\u7387\u7684\u306a\u30ed\u30b0\u5b9f\u88c5\u306e\u57fa\u672c\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u610f\u8b58\u3057\u305f\u30ed\u30b0\u30ec\u30d9\u30eb\u8a2d\u8a08<\/a>      <\/li>      <li>        <a href=\"#i-5\">\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3068\u30b3\u30f3\u30bd\u30fc\u30eb\u51fa\u529b\u306e\u4f7f\u3044\u5206\u3051<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-6\">\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3068\u306e\u9023\u643a\u306b\u3088\u308b\u5805\u7262\u306a\u5b9f\u88c5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-7\">\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u30ed\u30b0\u30af\u30e9\u30b9\u306e\u5b9f\u88c5\u4f8b<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-8\">\u6392\u4ed6\u5236\u5fa1\u3092\u7528\u3044\u305f\u5b89\u5168\u306a\u30ed\u30b0\u51fa\u529b\u306e\u5b9f\u73fe<\/a>      <\/li>      <li>        <a href=\"#i-9\">\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u306b\u3088\u308b\u30e1\u30e2\u30ea\u52b9\u7387\u306e\u6700\u9069\u5316<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-10\">\u975e\u540c\u671f\u30ed\u30b0\u51fa\u529b\u306b\u3088\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-11\">\u5b9f\u8df5\u7684\u306a\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-12\">\u30ed\u30b0\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u88c5\u306b\u3088\u308b\u30c7\u30a3\u30b9\u30af\u5bb9\u91cf\u306e\u6700\u9069\u5316<\/a>      <\/li>      <li>        <a href=\"#i-13\">\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3068\u30b9\u30ec\u30c3\u30c9ID\u306e\u4ed8\u4e0e\u306b\u3088\u308b\u8ffd\u8de1\u6027\u306e\u5411\u4e0a<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-14\">\u30ed\u30b0\u30d5\u30a9\u30fc\u30de\u30c3\u30bf\u30fc\u306b\u3088\u308b\u67d4\u8edf\u306a\u51fa\u529b\u5f62\u5f0f\u306e\u5b9f\u73fe<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-15\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-16\">\u6761\u4ef6\u4ed8\u304d\u30ed\u30b0\u306b\u3088\u308b\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306e\u524a\u6e1b<\/a>      <\/li>      <li>        <a href=\"#i-17\">\u30e1\u30e2\u30ea\u30d7\u30fc\u30eb\u3092\u6d3b\u7528\u3057\u305f\u30a2\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u524a\u6e1b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-18\">\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u6700\u9069\u5316\u306b\u3088\u308b\u30ed\u30b0\u51e6\u7406\u306e\u9ad8\u901f\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++\u3067\u30ed\u30b0\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u91cd\u8981\u6027\u3068\u30e1\u30ea\u30c3\u30c8<\/h2>\n\n\n\n<p>C++\u3067\u306e\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u306b\u304a\u3044\u3066\u3001\u52b9\u679c\u7684\u306a\u30ed\u30b0\u6a5f\u80fd\u306e\u5b9f\u88c5\u306f\u958b\u767a\u52b9\u7387\u3068\u54c1\u8cea\u3092\u5927\u304d\u304f\u5de6\u53f3\u3059\u308b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002\u672c\u7ae0\u3067\u306f\u3001\u72ec\u81ea\u306e\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u306e\u610f\u7fa9\u3068\u3001\u305d\u308c\u306b\u3088\u3063\u3066\u3082\u305f\u3089\u3055\u308c\u308b\u5177\u4f53\u7684\u306a\u30e1\u30ea\u30c3\u30c8\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u30c7\u30d0\u30c3\u30b0\u52b9\u7387\u309210\u500d\u306b\u3059\u308b\u6226\u7565\u7684\u306a\u30ed\u30b0\u8a2d\u8a08<\/h3>\n\n\n\n<p>\u52b9\u679c\u7684\u306a\u30ed\u30b0\u8a2d\u8a08\u306f\u3001\u30c7\u30d0\u30c3\u30b0\u4f5c\u696d\u306e\u52b9\u7387\u3092\u5287\u7684\u306b\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u30dd\u30a4\u30f3\u30c8\u306b\u6ce8\u76ee\u3057\u3066\u8a2d\u8a08\u3059\u308b\u3053\u3068\u3067\u3001\u554f\u984c\u306e\u65e9\u671f\u767a\u898b\u3068\u89e3\u6c7a\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u968e\u5c64\u7684\u306a\u30ed\u30b0\u30ec\u30d9\u30eb\u8a2d\u8a08<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ERROR\uff1a\u30b7\u30b9\u30c6\u30e0\u306e\u7570\u5e38\u3084\u91cd\u5927\u306a\u554f\u984c<\/li>\n\n\n\n<li>WARN\uff1a\u6f5c\u5728\u7684\u306a\u554f\u984c\u3084\u8b66\u544a<\/li>\n\n\n\n<li>INFO\uff1a\u91cd\u8981\u306a\u51e6\u7406\u306e\u958b\u59cb\u30fb\u7d42\u4e86<\/li>\n\n\n\n<li>DEBUG\uff1a\u8a73\u7d30\u306a\u30c7\u30d0\u30c3\u30b0\u60c5\u5831<\/li>\n\n\n\n<li>TRACE\uff1a\u6700\u3082\u8a73\u7d30\u306a\u51e6\u7406\u30d5\u30ed\u30fc<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u60c5\u5831\u306e\u5145\u5b9f<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7<\/li>\n\n\n\n<li>\u30b9\u30ec\u30c3\u30c9ID<\/li>\n\n\n\n<li>\u95a2\u6570\u540d\u30fb\u884c\u756a\u53f7<\/li>\n\n\n\n<li>\u51e6\u7406\u5bfe\u8c61\u306e\u30c7\u30fc\u30bf<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ed\u30b0\u306e\u69cb\u9020\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>JSON\u5f62\u5f0f\u3067\u306e\u51fa\u529b<\/li>\n\n\n\n<li>\u30ad\u30fc\u30d0\u30ea\u30e5\u30fc\u5f62\u5f0f\u3067\u306e\u60c5\u5831\u6574\u7406<\/li>\n\n\n\n<li>\u691c\u7d22\u30fb\u89e3\u6790\u306e\u5bb9\u6613\u6027<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u8981\u7d20\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u554f\u984c\u767a\u751f\u6642\u306e\u539f\u56e0\u7279\u5b9a\u304c\u5bb9\u6613\u306b\u306a\u308a\u3001\u30c7\u30d0\u30c3\u30b0\u6642\u9593\u3092\u5927\u5e45\u306b\u77ed\u7e2e\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u30b7\u30b9\u30c6\u30e0\u306e\u4fe1\u983c\u6027\u3092\u9ad8\u3081\u308b\u30ed\u30b0\u306e\u6d3b\u7528\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u9069\u5207\u306a\u30ed\u30b0\u6a5f\u80fd\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u4fe1\u983c\u6027\u5411\u4e0a\u306b\u5927\u304d\u304f\u8ca2\u732e\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b7\u30b9\u30c6\u30e0\u306e\u72b6\u614b\u76e3\u8996<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ea\u30bd\u30fc\u30b9\u4f7f\u7528\u72b6\u6cc1\u306e\u8ffd\u8de1<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306e\u7279\u5b9a<\/li>\n\n\n\n<li>\u7570\u5e38\u306e\u65e9\u671f\u691c\u51fa<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u969c\u5bb3\u5206\u6790\u3068\u4e88\u9632<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30a8\u30e9\u30fc\u30d1\u30bf\u30fc\u30f3\u306e\u5206\u6790<\/li>\n\n\n\n<li>\u554f\u984c\u306e\u518d\u73fe\u6027\u78ba\u8a8d<\/li>\n\n\n\n<li>\u4e88\u9632\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u76e3\u67fb\u3068\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u76e3\u67fb\u306e\u5b9f\u65bd<\/li>\n\n\n\n<li>\u30a2\u30af\u30bb\u30b9\u30ed\u30b0\u306e\u8a18\u9332<\/li>\n\n\n\n<li>\u64cd\u4f5c\u5c65\u6b74\u306e\u8ffd\u8de1<\/li>\n<\/ul>\n\n\n\n<p>\u30ed\u30b0\u3092\u6226\u7565\u7684\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5177\u4f53\u7684\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u5f97\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n<div id=\"id-1233e70c-a91e-432a-a6f7-98e019d473de\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30e1\u30ea\u30c3\u30c8<\/th><th>\u52b9\u679c<\/th><\/tr><\/thead><tbody><tr><td>\u554f\u984c\u89e3\u6c7a\u6642\u9593\u306e\u77ed\u7e2e<\/td><td>\u30c7\u30d0\u30c3\u30b0\u4f5c\u696d\u306e\u52b9\u7387\u5316\u306b\u3088\u308a\u3001\u554f\u984c\u89e3\u6c7a\u307e\u3067\u306e\u6642\u9593\u309250%\u4ee5\u4e0a\u77ed\u7e2e<\/td><\/tr><tr><td>\u30b7\u30b9\u30c6\u30e0\u5b89\u5b9a\u6027\u306e\u5411\u4e0a<\/td><td>\u65e9\u671f\u554f\u984c\u691c\u51fa\u306b\u3088\u308a\u3001\u91cd\u5927\u969c\u5bb3\u306e\u767a\u751f\u309230%\u4ee5\u4e0a\u524a\u6e1b<\/td><\/tr><tr><td>\u904b\u7528\u30b3\u30b9\u30c8\u306e\u524a\u6e1b<\/td><td>\u52b9\u7387\u7684\u306a\u76e3\u8996\u30fb\u5206\u6790\u306b\u3088\u308a\u3001\u904b\u7528\u5de5\u6570\u309240%\u7a0b\u5ea6\u524a\u6e1b<\/td><\/tr><tr><td>\u54c1\u8cea\u5411\u4e0a<\/td><td>\u7cfb\u7d71\u7684\u306a\u554f\u984c\u5206\u6790\u306b\u3088\u308a\u3001\u30ea\u30ea\u30fc\u30b9\u5f8c\u306e\u4e0d\u5177\u5408\u309260%\u524a\u6e1b<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p>\u52b9\u679c\u7684\u306a\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u5b9f\u88c5\u306b\u3088\u308a\u3001\u958b\u767a\u30c1\u30fc\u30e0\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u6069\u6075\u3092\u53d7\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8fc5\u901f\u306a\u554f\u984c\u89e3\u6c7a\u306b\u3088\u308b\u958b\u767a\u52b9\u7387\u306e\u5411\u4e0a<\/li>\n\n\n\n<li>\u30b7\u30b9\u30c6\u30e0\u306e\u632f\u308b\u821e\u3044\u306e\u53ef\u8996\u5316\u306b\u3088\u308b\u54c1\u8cea\u5411\u4e0a<\/li>\n\n\n\n<li>\u904b\u7528\u30fb\u4fdd\u5b88\u4f5c\u696d\u306e\u52b9\u7387\u5316<\/li>\n\n\n\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u3078\u306e\u8fc5\u901f\u306a\u5bfe\u5fdc<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u8981\u4ef6\u3078\u306e\u9069\u5408<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001C++\u3067\u306e\u30ed\u30b0\u6a5f\u80fd\u306e\u5b9f\u88c5\u306f\u3001\u5358\u306a\u308b\u30c7\u30d0\u30c3\u30b0\u30c4\u30fc\u30eb\u3068\u3057\u3066\u3060\u3051\u3067\u306a\u304f\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u54c1\u8cea\u3068\u4fe1\u983c\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u57fa\u76e4\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u6b21\u7ae0\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u30e1\u30ea\u30c3\u30c8\u3092\u6700\u5927\u9650\u306b\u5f15\u304d\u51fa\u3059\u305f\u3081\u306e\u5177\u4f53\u7684\u306a\u5b9f\u88c5\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-3\">C++\u3067\u306e\u52b9\u7387\u7684\u306a\u30ed\u30b0\u5b9f\u88c5\u306e\u57fa\u672c\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<p>\u52b9\u7387\u7684\u306a\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u5b9f\u88c5\u306b\u306f\u3001\u9069\u5207\u306a\u8a2d\u8a08\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306e\u9069\u7528\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001C++\u3067\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\u3092\u5b9f\u88c5\u3059\u308b\u969b\u306e\u57fa\u672c\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3092\u3001\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c9\u4f8b\u3068\u3068\u3082\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u610f\u8b58\u3057\u305f\u30ed\u30b0\u30ec\u30d9\u30eb\u8a2d\u8a08<\/h3>\n\n\n\n<p>\u30ed\u30b0\u30ec\u30d9\u30eb\u306e\u9069\u5207\u306a\u8a2d\u8a08\u3068\u5b9f\u88c5\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u53ef\u8aad\u6027\u306e\u4e21\u7acb\u306b\u91cd\u8981\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u52b9\u7387\u7684\u306a\u30ed\u30b0\u30ec\u30d9\u30eb\u5b9f\u88c5\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;string&gt;\n#include &lt;iostream&gt;\n\nclass Logger {\npublic:\n    \/\/ \u30ed\u30b0\u30ec\u30d9\u30eb\u306e\u5b9a\u7fa9\n    enum class Level {\n        TRACE,\n        DEBUG,\n        INFO,\n        WARN,\n        ERROR,\n        FATAL\n    };\n\nprivate:\n    Level current_level_;\n\n    \/\/ \u30ed\u30b0\u30ec\u30d9\u30eb\u3092\u6587\u5b57\u5217\u306b\u5909\u63db\n    static std::string level_to_string(Level level) {\n        switch (level) {\n            case Level::TRACE: return \"TRACE\";\n            case Level::DEBUG: return \"DEBUG\";\n            case Level::INFO:  return \"INFO\";\n            case Level::WARN:  return \"WARN\";\n            case Level::ERROR: return \"ERROR\";\n            case Level::FATAL: return \"FATAL\";\n            default: return \"UNKNOWN\";\n        }\n    }\n\npublic:\n    explicit Logger(Level level = Level::INFO) : current_level_(level) {}\n\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u6761\u4ef6\u4ed8\u304d\u30ed\u30b0\u51fa\u529b\n    template&lt;typename... Args&gt;\n    void log(Level level, const Args&amp;... args) {\n        if (level &gt;= current_level_) {\n            std::cout &lt;&lt; \"[\" &lt;&lt; level_to_string(level) &lt;&lt; \"] \";\n            (std::cout &lt;&lt; ... &lt;&lt; args) &lt;&lt; std::endl;\n        }\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u306e\u7279\u5fb4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>enum class\u306b\u3088\u308b\u578b\u5b89\u5168\u306a\u30ed\u30b0\u30ec\u30d9\u30eb\u5b9a\u7fa9<\/li>\n\n\n\n<li>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u305f\u67d4\u8edf\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u5f62\u5f0f<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u6761\u4ef6\u5224\u5b9a\u306b\u3088\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3068\u30b3\u30f3\u30bd\u30fc\u30eb\u51fa\u529b\u306e\u4f7f\u3044\u5206\u3051<\/h3>\n\n\n\n<p>\u30b7\u30b9\u30c6\u30e0\u306e\u7528\u9014\u306b\u5fdc\u3058\u3066\u3001\u9069\u5207\u306a\u51fa\u529b\u5148\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u8907\u6570\u306e\u51fa\u529b\u5148\u306b\u5bfe\u5fdc\u3057\u305f\u30ed\u30b0\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;fstream&gt;\n#include &lt;memory&gt;\n\nclass LogOutput {\npublic:\n    virtual ~LogOutput() = default;\n    virtual void write(const std::string&amp; message) = 0;\n};\n\nclass ConsoleOutput : public LogOutput {\npublic:\n    void write(const std::string&amp; message) override {\n        std::cout &lt;&lt; message &lt;&lt; std::endl;\n    }\n};\n\nclass FileOutput : public LogOutput {\n    std::ofstream file_;\npublic:\n    explicit FileOutput(const std::string&amp; filename) {\n        file_.open(filename, std::ios::app);\n        if (!file_.is_open()) {\n            throw std::runtime_error(\"Failed to open log file: \" + filename);\n        }\n    }\n\n    void write(const std::string&amp; message) override {\n        if (file_.is_open()) {\n            file_ &lt;&lt; message &lt;&lt; std::endl;\n        }\n    }\n\n    ~FileOutput() {\n        if (file_.is_open()) {\n            file_.close();\n        }\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u8a2d\u8a08\u306b\u3088\u308a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u51fa\u529b\u5148\u306e\u52d5\u7684\u306a\u5207\u308a\u66ff\u3048\u304c\u53ef\u80fd<\/li>\n\n\n\n<li>\u65b0\u3057\u3044\u51fa\u529b\u5f62\u5f0f\u306e\u8ffd\u52a0\u304c\u5bb9\u6613<\/li>\n\n\n\n<li>RAII\u306b\u3088\u308b\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406\u306e\u9069\u5207\u306a\u5b9f\u88c5<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3068\u306e\u9023\u643a\u306b\u3088\u308b\u5805\u7262\u306a\u5b9f\u88c5<\/h3>\n\n\n\n<p>\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\u306f\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3068\u5bc6\u63a5\u306b\u9023\u643a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u4f8b\u5916\u51e6\u7406\u3068\u9023\u643a\u3057\u305f\u30ed\u30b0\u5b9f\u88c5\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class LoggingException : public std::runtime_error {\npublic:\n    explicit LoggingException(const std::string&amp; message)\n        : std::runtime_error(message) {}\n};\n\nclass LogManager {\n    std::vector&lt;std::unique_ptr&lt;LogOutput&gt;&gt; outputs_;\n    std::mutex mutex_;\n\npublic:\n    void add_output(std::unique_ptr&lt;LogOutput&gt; output) {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex_);\n        outputs_.push_back(std::move(output));\n    }\n\n    void log_error(const std::string&amp; message, const std::exception&amp; e) {\n        try {\n            std::string error_message = \n                message + \" Exception: \" + e.what();\n\n            std::lock_guard&lt;std::mutex&gt; lock(mutex_);\n            for (auto&amp; output : outputs_) {\n                output-&gt;write(error_message);\n            }\n        } catch (const std::exception&amp; log_e) {\n            \/\/ \u30ed\u30b0\u51fa\u529b\u81ea\u4f53\u304c\u5931\u6557\u3057\u305f\u5834\u5408\u306e\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\n            std::cerr &lt;&lt; \"Logging failed: \" &lt;&lt; log_e.what() &lt;&lt; std::endl;\n        }\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u5229\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u69cb\u9020\u5316\u3055\u308c\u305f\u4f8b\u5916\u60c5\u5831\u306e\u8a18\u9332<\/li>\n\n\n\n<li>\u30ed\u30b0\u51fa\u529b\u5931\u6557\u6642\u306e\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u6a5f\u80fd<\/li>\n\n\n\n<li>\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u5b9f\u88c5<\/li>\n<\/ul>\n\n\n\n<p>\u52b9\u7387\u7684\u306a\u30ed\u30b0\u5b9f\u88c5\u306e\u57fa\u672c\u30c6\u30af\u30cb\u30c3\u30af\u3092\u62bc\u3055\u3048\u308b\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u52b9\u679c\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e0d\u8981\u306a\u30ed\u30b0\u51fa\u529b\u306e\u524a\u6e1b<\/li>\n\n\n\n<li>\u52b9\u7387\u7684\u306a\u30ea\u30bd\u30fc\u30b9\u5229\u7528<\/li>\n\n\n\n<li>\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u52d5\u4f5c<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4fdd\u5b88\u6027\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u660e\u78ba\u306a\u8cac\u52d9\u5206\u96e2<\/li>\n\n\n\n<li>\u62e1\u5f35\u6027\u306e\u78ba\u4fdd<\/li>\n\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u6027<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u904b\u7528\u52b9\u7387\u306e\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u554f\u984c\u306e\u8fc5\u901f\u306a\u7279\u5b9a<\/li>\n\n\n\n<li>\u30b7\u30b9\u30c6\u30e0\u72b6\u614b\u306e\u53ef\u8996\u5316<\/li>\n\n\n\n<li>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u52b9\u7387\u5316<\/li>\n<\/ul>\n\n\n\n<p>\u6b21\u7ae0\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u57fa\u672c\u30c6\u30af\u30cb\u30c3\u30af\u3092\u767a\u5c55\u3055\u305b\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u30ed\u30b0\u30af\u30e9\u30b9\u306e\u5b9f\u88c5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-7\">\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u30ed\u30b0\u30af\u30e9\u30b9\u306e\u5b9f\u88c5\u4f8b<\/h2>\n\n\n\n<p>\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u3067\u306e\u30ed\u30b0\u51fa\u529b\u306f\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u4e21\u7acb\u304c\u6c42\u3081\u3089\u308c\u308b\u91cd\u8981\u306a\u8ab2\u984c\u3067\u3059\u3002\u672c\u7ae0\u3067\u306f\u3001\u5b9f\u8df5\u7684\u306a\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u30ed\u30b0\u30af\u30e9\u30b9\u306e\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u306a\u304c\u3089\u3001\u52b9\u7387\u7684\u306a\u30ed\u30b0\u7ba1\u7406\u306e\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u6392\u4ed6\u5236\u5fa1\u3092\u7528\u3044\u305f\u5b89\u5168\u306a\u30ed\u30b0\u51fa\u529b\u306e\u5b9f\u73fe<\/h3>\n\n\n\n<p>\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u30ed\u30b0\u51fa\u529b\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u4f8b\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;mutex&gt;\n#include &lt;sstream&gt;\n#include &lt;queue&gt;\n#include &lt;condition_variable&gt;\n\nclass ThreadSafeLogger {\nprivate:\n    std::mutex mutex_;\n    std::ofstream log_file_;\n\n    \/\/ \u30b7\u30f3\u30b0\u30eb\u30c8\u30f3\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\n    static ThreadSafeLogger* instance_;\n    static std::mutex instance_mutex_;\n\n    \/\/ \u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\uff08\u30b7\u30f3\u30b0\u30eb\u30c8\u30f3\u30d1\u30bf\u30fc\u30f3\uff09\n    ThreadSafeLogger() {\n        log_file_.open(\"application.log\", std::ios::app);\n        if (!log_file_.is_open()) {\n            throw std::runtime_error(\"Failed to open log file\");\n        }\n    }\n\npublic:\n    \/\/ \u30b7\u30f3\u30b0\u30eb\u30c8\u30f3\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u53d6\u5f97\n    static ThreadSafeLogger&amp; getInstance() {\n        std::lock_guard&lt;std::mutex&gt; lock(instance_mutex_);\n        if (instance_ == nullptr) {\n            instance_ = new ThreadSafeLogger();\n        }\n        return *instance_;\n    }\n\n    void log(const std::string&amp; message) {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex_);\n        log_file_ &lt;&lt; getCurrentTimestamp() &lt;&lt; \" - \" &lt;&lt; message &lt;&lt; std::endl;\n    }\n\n    \/\/ \u73fe\u5728\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u53d6\u5f97\n    static std::string getCurrentTimestamp() {\n        auto now = std::chrono::system_clock::now();\n        auto time = std::chrono::system_clock::to_time_t(now);\n        std::stringstream ss;\n        ss &lt;&lt; std::put_time(std::localtime(&amp;time), \"%Y-%m-%d %H:%M:%S\");\n        return ss.str();\n    }\n};\n\n\/\/ \u9759\u7684\u30e1\u30f3\u30d0\u306e\u521d\u671f\u5316\nThreadSafeLogger* ThreadSafeLogger::instance_ = nullptr;\nstd::mutex ThreadSafeLogger::instance_mutex_;<\/pre>\n\n\n\n<p>\u3053\u306e\u5b9f\u88c5\u306e\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>mutex\u3092\u4f7f\u7528\u3057\u305f\u6392\u4ed6\u5236\u5fa1<\/li>\n\n\n\n<li>\u30b7\u30f3\u30b0\u30eb\u30c8\u30f3\u30d1\u30bf\u30fc\u30f3\u306b\u3088\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u7ba1\u7406<\/li>\n\n\n\n<li>RAII\u306b\u3088\u308b\u30ea\u30bd\u30fc\u30b9\u7ba1\u7406<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u306b\u3088\u308b\u30e1\u30e2\u30ea\u52b9\u7387\u306e\u6700\u9069\u5316<\/h3>\n\n\n\n<p>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u5236\u5fa1\u3059\u308b\u305f\u3081\u306e\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u3092\u5b9f\u88c5\u3057\u305f\u4f8b\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename T, size_t Size&gt;\nclass RingBuffer {\nprivate:\n    std::array&lt;T, Size&gt; buffer_;\n    size_t write_pos_ = 0;\n    size_t read_pos_ = 0;\n    size_t count_ = 0;\n    std::mutex mutex_;\n    std::condition_variable not_empty_;\n    std::condition_variable not_full_;\n\npublic:\n    bool push(const T&amp; item) {\n        std::unique_lock&lt;std::mutex&gt; lock(mutex_);\n        if (count_ == Size) {\n            \/\/ \u30d0\u30c3\u30d5\u30a1\u304c\u6e80\u676f\u306e\u5834\u5408\u3001\u6700\u3082\u53e4\u3044\u30c7\u30fc\u30bf\u3092\u7834\u68c4\n            read_pos_ = (read_pos_ + 1) % Size;\n            count_--;\n        }\n\n        buffer_[write_pos_] = item;\n        write_pos_ = (write_pos_ + 1) % Size;\n        count_++;\n\n        lock.unlock();\n        not_empty_.notify_one();\n        return true;\n    }\n\n    bool pop(T&amp; item) {\n        std::unique_lock&lt;std::mutex&gt; lock(mutex_);\n        while (count_ == 0) {\n            not_empty_.wait(lock);\n        }\n\n        item = buffer_[read_pos_];\n        read_pos_ = (read_pos_ + 1) % Size;\n        count_--;\n\n        lock.unlock();\n        not_full_.notify_one();\n        return true;\n    }\n};<\/pre>\n\n\n\n<p>\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u306e\u5229\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u5236\u9650<\/li>\n\n\n\n<li>\u53e4\u3044\u30ed\u30b0\u306e\u81ea\u52d5\u7834\u68c4<\/li>\n\n\n\n<li>\u52b9\u7387\u7684\u306a\u30e1\u30e2\u30ea\u7ba1\u7406<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u975e\u540c\u671f\u30ed\u30b0\u51fa\u529b\u306b\u3088\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a<\/h3>\n\n\n\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u5927\u5316\u3059\u308b\u305f\u3081\u306e\u975e\u540c\u671f\u30ed\u30b0\u51fa\u529b\u306e\u5b9f\u88c5\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class AsyncLogger {\nprivate:\n    RingBuffer&lt;std::string, 1024&gt; message_queue_;\n    std::thread worker_thread_;\n    std::atomic&lt;bool&gt; running_;\n    std::ofstream log_file_;\n\n    void processLogs() {\n        std::string message;\n        while (running_) {\n            if (message_queue_.pop(message)) {\n                std::lock_guard&lt;std::mutex&gt; lock(file_mutex_);\n                log_file_ &lt;&lt; message &lt;&lt; std::endl;\n            }\n        }\n    }\n\npublic:\n    AsyncLogger(const std::string&amp; filename) : running_(true) {\n        log_file_.open(filename, std::ios::app);\n        if (!log_file_.is_open()) {\n            throw std::runtime_error(\"Failed to open log file: \" + filename);\n        }\n        worker_thread_ = std::thread(&amp;AsyncLogger::processLogs, this);\n    }\n\n    void log(const std::string&amp; message) {\n        message_queue_.push(ThreadSafeLogger::getCurrentTimestamp() + \" - \" + message);\n    }\n\n    ~AsyncLogger() {\n        running_ = false;\n        if (worker_thread_.joinable()) {\n            worker_thread_.join();\n        }\n        if (log_file_.is_open()) {\n            log_file_.close();\n        }\n    }\n\nprivate:\n    std::mutex file_mutex_;\n};<\/pre>\n\n\n\n<p>\u3053\u306e\u5b9f\u88c5\u306e\u7279\u5fb4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5c02\u7528\u30ef\u30fc\u30ab\u30fc\u30b9\u30ec\u30c3\u30c9\u306b\u3088\u308b\u30ed\u30b0\u51e6\u7406<\/li>\n\n\n\n<li>\u30e1\u30c3\u30bb\u30fc\u30b8\u30ad\u30e5\u30fc\u306b\u3088\u308b\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0<\/li>\n\n\n\n<li>\u975e\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u306a\u30ed\u30b0\u51fa\u529b<\/li>\n<\/ul>\n\n\n\n<p>\u975e\u540c\u671f\u30ed\u30b0\u51fa\u529b\u306e\u52b9\u679c\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u306e\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u524a\u6e1b<\/li>\n\n\n\n<li>I\/O\u64cd\u4f5c\u306e\u52b9\u7387\u5316<\/li>\n\n\n\n<li>\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u5411\u4e0a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30ea\u30bd\u30fc\u30b9\u5229\u7528\u306e\u6700\u9069\u5316<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CPU\u30ea\u30bd\u30fc\u30b9\u306e\u52b9\u7387\u7684\u306a\u4f7f\u7528<\/li>\n\n\n\n<li>I\/O\u5f85\u3061\u6642\u9593\u306e\u524a\u6e1b<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u5236\u5fa1<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30b7\u30b9\u30c6\u30e0\u306e\u5fdc\u7b54\u6027\u5411\u4e0a<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u6539\u5584<\/li>\n\n\n\n<li>\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u30d1\u30b9\u306e\u6700\u9069\u5316<\/li>\n\n\n\n<li>\u51e6\u7406\u306e\u30ec\u30a4\u30c6\u30f3\u30b7\u524a\u6e1b<\/li>\n<\/ul>\n\n\n\n<p>\u5b9f\u88c5\u6642\u306e\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u306e\u9069\u5207\u306a\u30ea\u30bd\u30fc\u30b9\u89e3\u653e<\/li>\n\n\n\n<li>\u4f8b\u5916\u767a\u751f\u6642\u306e\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/li>\n\n\n\n<li>\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u6642\u306e\u30ed\u30b0\u6d88\u5931\u9632\u6b62<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u88c5\u4f8b\u306f\u3001\u5b9f\u969b\u306e\u958b\u767a\u73fe\u5834\u3067\u76f4\u9762\u3059\u308b\u591a\u304f\u306e\u8ab2\u984c\u306b\u5bfe\u3059\u308b\u89e3\u6c7a\u7b56\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u6b21\u7ae0\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u57fa\u672c\u5b9f\u88c5\u3092\u3055\u3089\u306b\u767a\u5c55\u3055\u305b\u3001\u3088\u308a\u5b9f\u8df5\u7684\u306a\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-11\">\u5b9f\u8df5\u7684\u306a\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u5b9f\u52d9\u3067\u4f7f\u7528\u3059\u308b\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\u306b\u306f\u3001\u5358\u7d14\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u51fa\u529b\u4ee5\u4e0a\u306e\u6a5f\u80fd\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u5b9f\u8df5\u7684\u306a\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u30ed\u30b0\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u88c5\u306b\u3088\u308b\u30c7\u30a3\u30b9\u30af\u5bb9\u91cf\u306e\u6700\u9069\u5316<\/h3>\n\n\n\n<p>\u9577\u6642\u9593\u7a3c\u50cd\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u306e\u80a5\u5927\u5316\u304c\u6df1\u523b\u306a\u554f\u984c\u3068\u306a\u308a\u307e\u3059\u3002\u30ed\u30b0\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u554f\u984c\u3092\u52b9\u679c\u7684\u306b\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class LogRotator {\npublic:\n    LogRotator(const std::string&amp; base_filename, \n               size_t max_size = 10 * 1024 * 1024,  \/\/ \u30c7\u30d5\u30a9\u30eb\u30c810MB\n               int max_files = 5)\n        : base_filename_(base_filename)\n        , max_size_(max_size)\n        , max_files_(max_files)\n        , current_size_(0) {\n        \/\/ \u73fe\u5728\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3092\u53d6\u5f97\n        std::ifstream file(base_filename, std::ios::binary | std::ios::ate);\n        if (file.is_open()) {\n            current_size_ = file.tellg();\n        }\n    }\n\n    void write(const std::string&amp; message) {\n        std::lock_guard&lt;std::mutex&gt; lock(mutex_);\n\n        \/\/ \u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u30c1\u30a7\u30c3\u30af\n        if (current_size_ + message.size() &gt; max_size_) {\n            rotate();\n        }\n\n        \/\/ \u30ed\u30b0\u66f8\u304d\u8fbc\u307f\n        std::ofstream file(base_filename_, std::ios::app);\n        if (file.is_open()) {\n            file &lt;&lt; message;\n            current_size_ += message.size();\n        }\n    }\n\nprivate:\n    void rotate() {\n        \/\/ \u53e4\u3044\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u306e\u524a\u9664\n        std::string old_name = base_filename_ + \".\" + std::to_string(max_files_ - 1);\n        std::remove(old_name.c_str());\n\n        \/\/ \u30d5\u30a1\u30a4\u30eb\u306e\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\n        for (int i = max_files_ - 2; i &gt;= 0; --i) {\n            std::string current_name = base_filename_;\n            if (i &gt; 0) current_name += \".\" + std::to_string(i);\n            std::string next_name = base_filename_ + \".\" + std::to_string(i + 1);\n            std::rename(current_name.c_str(), next_name.c_str());\n        }\n\n        current_size_ = 0;\n    }\n\n    std::string base_filename_;\n    size_t max_size_;\n    int max_files_;\n    size_t current_size_;\n    std::mutex mutex_;\n};<\/pre>\n\n\n\n<p>\u3053\u306e\u30ed\u30b0\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u5b9f\u88c5\u3067\u306f\u4ee5\u4e0b\u306e\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u306e\u76e3\u8996\u3068\u81ea\u52d5\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3<\/li>\n\n\n\n<li>\u8a2d\u5b9a\u53ef\u80fd\u306a\u6700\u5927\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3068\u4fdd\u6301\u30d5\u30a1\u30a4\u30eb\u6570<\/li>\n\n\n\n<li>\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u306a\u5b9f\u88c5<\/li>\n\n\n\n<li>\u52b9\u7387\u7684\u306a\u30d5\u30a1\u30a4\u30eb\u7ba1\u7406<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3068\u30b9\u30ec\u30c3\u30c9ID\u306e\u4ed8\u4e0e\u306b\u3088\u308b\u8ffd\u8de1\u6027\u306e\u5411\u4e0a<\/h3>\n\n\n\n<p>\u30c7\u30d0\u30c3\u30b0\u3084\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u52b9\u7387\u5316\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u5404\u30ed\u30b0\u30a8\u30f3\u30c8\u30ea\u306b\u8a73\u7d30\u306a\u60c5\u5831\u3092\u4ed8\u52a0\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class LogFormatter {\npublic:\n    static std::string format(const std::string&amp; message, LogLevel level) {\n        std::stringstream ss;\n\n        \/\/ \u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u8ffd\u52a0\n        auto now = std::chrono::system_clock::now();\n        auto now_c = std::chrono::system_clock::to_time_t(now);\n        auto now_ms = std::chrono::duration_cast&lt;std::chrono::milliseconds&gt;(\n            now.time_since_epoch()) % 1000;\n        ss &lt;&lt; std::put_time(std::localtime(&amp;now_c), \"%Y-%m-%d %H:%M:%S\")\n           &lt;&lt; \".\" &lt;&lt; std::setfill('0') &lt;&lt; std::setw(3) &lt;&lt; now_ms.count() &lt;&lt; \" \";\n\n        \/\/ \u30b9\u30ec\u30c3\u30c9ID\u306e\u8ffd\u52a0\n        ss &lt;&lt; \"[Thread-\" &lt;&lt; std::this_thread::get_id() &lt;&lt; \"] \";\n\n        \/\/ \u30ed\u30b0\u30ec\u30d9\u30eb\u306e\u8ffd\u52a0\n        ss &lt;&lt; \"[\" &lt;&lt; getLevelString(level) &lt;&lt; \"] \";\n\n        \/\/ \u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u8ffd\u52a0\n        ss &lt;&lt; message &lt;&lt; std::endl;\n\n        return ss.str();\n    }\n\nprivate:\n    static std::string getLevelString(LogLevel level) {\n        switch (level) {\n            case LogLevel::DEBUG: return \"DEBUG\";\n            case LogLevel::INFO:  return \"INFO \";\n            case LogLevel::WARN:  return \"WARN \";\n            case LogLevel::ERROR: return \"ERROR\";\n            default: return \"UNKNOWN\";\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">\u30ed\u30b0\u30d5\u30a9\u30fc\u30de\u30c3\u30bf\u30fc\u306b\u3088\u308b\u67d4\u8edf\u306a\u51fa\u529b\u5f62\u5f0f\u306e\u5b9f\u73fe<\/h3>\n\n\n\n<p>\u7570\u306a\u308b\u74b0\u5883\u3084\u8981\u4ef6\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u3001\u30ed\u30b0\u306e\u51fa\u529b\u5f62\u5f0f\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u53ef\u80fd\u306b\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u4ee5\u4e0b\u306f\u3001JSON\u5f62\u5f0f\u306e\u30ed\u30b0\u51fa\u529b\u306b\u5bfe\u5fdc\u3057\u305f\u30d5\u30a9\u30fc\u30de\u30c3\u30bf\u30fc\u306e\u5b9f\u88c5\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class JsonLogFormatter {\npublic:\n    static std::string format(const LogRecord&amp; record) {\n        nlohmann::json j;\n\n        \/\/ \u57fa\u672c\u60c5\u5831\n        j[\"timestamp\"] = formatTimestamp(record.timestamp);\n        j[\"level\"] = getLevelString(record.level);\n        j[\"thread_id\"] = std::to_string(record.thread_id);\n        j[\"message\"] = record.message;\n\n        \/\/ \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u60c5\u5831\u306e\u8ffd\u52a0\n        if (!record.context.empty()) {\n            j[\"context\"] = record.context;\n        }\n\n        \/\/ \u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\uff08\u30a8\u30e9\u30fc\u6642\u306e\u307f\uff09\n        if (record.level == LogLevel::ERROR &amp;&amp; !record.stack_trace.empty()) {\n            j[\"stack_trace\"] = record.stack_trace;\n        }\n\n        return j.dump();\n    }\n};<\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u5b9f\u88c5\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u69cb\u9020\u5316\u3055\u308c\u305f\u30ed\u30b0\u51fa\u529b\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">{\n    \"timestamp\": \"2025-01-09T10:15:30.123Z\",\n    \"level\": \"ERROR\",\n    \"thread_id\": \"140735272926208\",\n    \"message\": \"Failed to connect to database\",\n    \"context\": {\n        \"db_host\": \"localhost\",\n        \"db_port\": 5432,\n        \"retry_count\": 3\n    },\n    \"stack_trace\": [\n        \"DbConnection::connect:123\",\n        \"ApplicationServer::start:45\"\n    ]\n}<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5229\u70b9\u304c\u5f97\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u904b\u7528\u6027\u306e\u5411\u4e0a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c7\u30a3\u30b9\u30af\u5bb9\u91cf\u306e\u81ea\u52d5\u7ba1\u7406<\/li>\n\n\n\n<li>\u52b9\u7387\u7684\u306a\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u7ba1\u7406<\/li>\n\n\n\n<li>\u67d4\u8edf\u306a\u30ed\u30b0\u5f62\u5f0f\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30c7\u30d0\u30c3\u30b0\u52b9\u7387\u306e\u5411\u4e0a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a73\u7d30\u306a\u6642\u523b\u60c5\u5831\u306b\u3088\u308b\u554f\u984c\u306e\u7279\u5b9a<\/li>\n\n\n\n<li>\u30b9\u30ec\u30c3\u30c9ID\u306b\u3088\u308b\u4e26\u884c\u51e6\u7406\u306e\u8ffd\u8de1<\/li>\n\n\n\n<li>\u69cb\u9020\u5316\u3055\u308c\u305f\u30ed\u30b0\u306b\u3088\u308b\u89e3\u6790\u306e\u52b9\u7387\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30b7\u30b9\u30c6\u30e0\u76e3\u8996\u306e\u5f37\u5316<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u91cd\u8981\u306a\u30e1\u30c8\u30ea\u30af\u30b9\u306e\u53ce\u96c6<\/li>\n\n\n\n<li>\u7570\u5e38\u691c\u77e5\u306e\u5bb9\u6613\u5316<\/li>\n\n\n\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5206\u6790\u306e\u652f\u63f4<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u5b9f\u88c5\u306f\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u305f\u308a\u3001\u51fa\u529b\u5f62\u5f0f\u3092\u5909\u66f4\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u3067\u3001\u3055\u307e\u3056\u307e\u306a\u8981\u4ef6\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-15\">\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<p>\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5168\u4f53\u306e\u6027\u80fd\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001C++\u30ed\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">\u6761\u4ef6\u4ed8\u304d\u30ed\u30b0\u306b\u3088\u308b\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306e\u524a\u6e1b<\/h3>\n\n\n\n<p>\u30c7\u30d0\u30c3\u30b0\u30ed\u30b0\u306a\u3069\u3001\u5e38\u6642\u5fc5\u8981\u3067\u306f\u306a\u3044\u30ed\u30b0\u306e\u51fa\u529b\u306b\u3088\u308b\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class ConditionalLogger {\npublic:\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u6761\u4ef6\u5206\u5c90\u3092\u5229\u7528\u3057\u305f\u30ed\u30b0\u51fa\u529b\n    template&lt;LogLevel L, typename... Args&gt;\n    static constexpr void log(const Args&amp;... args) {\n        if constexpr (L &gt;= MINIMUM_LOG_LEVEL) {\n            logImpl(args...);\n        }\n        \/\/ L &lt; MINIMUM_LOG_LEVEL\u306e\u5834\u5408\u3001\u3053\u306e\u95a2\u6570\u306f\u7a7a\u306b\u306a\u308b\n    }\n\n    \/\/ \u5b9f\u884c\u6642\u306e\u6761\u4ef6\u5206\u5c90\u3092\u5229\u7528\u3057\u305f\u30ed\u30b0\u51fa\u529b\n    template&lt;typename... Args&gt;\n    static void logWithRuntimeCheck(LogLevel level, const Args&amp;... args) {\n        if (level &gt;= current_log_level_) {\n            logImpl(args...);\n        }\n    }\n\nprivate:\n    template&lt;typename... Args&gt;\n    static void logImpl(const Args&amp;... args) {\n        std::stringstream ss;\n        (ss &lt;&lt; ... &lt;&lt; args);  \/\/ C++17\u306efold\u5f0f\u3092\u4f7f\u7528\n        writeLog(ss.str());\n    }\n\n    static void writeLog(const std::string&amp; message) {\n        \/\/ \u30ed\u30b0\u306e\u5b9f\u969b\u306e\u51fa\u529b\u51e6\u7406\n    }\n\n    static inline LogLevel current_log_level_ = LogLevel::INFO;\n    static constexpr LogLevel MINIMUM_LOG_LEVEL = LogLevel::INFO;\n};\n\n\/\/ \u4f7f\u7528\u4f8b\n#define LOG_DEBUG(...) ConditionalLogger::log&lt;LogLevel::DEBUG&gt;(__VA_ARGS__)\n#define LOG_INFO(...) ConditionalLogger::log&lt;LogLevel::INFO&gt;(__VA_ARGS__)<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u30e1\u30e2\u30ea\u30d7\u30fc\u30eb\u3092\u6d3b\u7528\u3057\u305f\u30a2\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u524a\u6e1b<\/h3>\n\n\n\n<p>\u30ed\u30b0\u51fa\u529b\u6642\u306e\u52d5\u7684\u30e1\u30e2\u30ea\u30a2\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u305f\u3081\u3001\u30e1\u30e2\u30ea\u30d7\u30fc\u30eb\u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class LogMemoryPool {\npublic:\n    static constexpr size_t BLOCK_SIZE = 4096;  \/\/ \u30e1\u30e2\u30ea\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\n    static constexpr size_t MAX_BLOCKS = 1000;  \/\/ \u6700\u5927\u30d6\u30ed\u30c3\u30af\u6570\n\n    LogMemoryPool() : current_block_(0) {\n        \/\/ \u521d\u671f\u30e1\u30e2\u30ea\u30d6\u30ed\u30c3\u30af\u306e\u78ba\u4fdd\n        blocks_.reserve(MAX_BLOCKS);\n        blocks_.push_back(std::make_unique&lt;Block&gt;());\n    }\n\n    char* allocate(size_t size) {\n        if (size &gt; BLOCK_SIZE) {\n            throw std::runtime_error(\"Requested size too large for memory pool\");\n        }\n\n        \/\/ \u73fe\u5728\u306e\u30d6\u30ed\u30c3\u30af\u306b\u5341\u5206\u306a\u7a7a\u304d\u304c\u306a\u3044\u5834\u5408\u3001\u65b0\u3057\u3044\u30d6\u30ed\u30c3\u30af\u3092\u78ba\u4fdd\n        if (blocks_[current_block_]-&gt;used + size &gt; BLOCK_SIZE) {\n            if (current_block_ + 1 &gt;= blocks_.size()) {\n                if (blocks_.size() &gt;= MAX_BLOCKS) {\n                    \/\/ \u6700\u3082\u53e4\u3044\u30d6\u30ed\u30c3\u30af\u3092\u518d\u5229\u7528\n                    current_block_ = 0;\n                    blocks_[current_block_]-&gt;used = 0;\n                } else {\n                    \/\/ \u65b0\u3057\u3044\u30d6\u30ed\u30c3\u30af\u3092\u8ffd\u52a0\n                    blocks_.push_back(std::make_unique&lt;Block&gt;());\n                    current_block_++;\n                }\n            } else {\n                current_block_++;\n                blocks_[current_block_]-&gt;used = 0;\n            }\n        }\n\n        \/\/ \u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\n        char* ptr = blocks_[current_block_]-&gt;data + blocks_[current_block_]-&gt;used;\n        blocks_[current_block_]-&gt;used += size;\n        return ptr;\n    }\n\nprivate:\n    struct Block {\n        char data[BLOCK_SIZE];\n        size_t used = 0;\n    };\n\n    std::vector&lt;std::unique_ptr&lt;Block&gt;&gt; blocks_;\n    size_t current_block_;\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u6700\u9069\u5316\u306b\u3088\u308b\u30ed\u30b0\u51e6\u7406\u306e\u9ad8\u901f\u5316<\/h3>\n\n\n\n<p>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u6d3b\u7528\u3057\u3066\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u30ed\u30b0\u51e6\u7406\u3092\u6700\u9069\u5316\u3059\u308b\u624b\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">template&lt;typename... Args&gt;\nclass CompileTimeLogger {\npublic:\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u6587\u5b57\u5217\u9023\u7d50\n    template&lt;typename... Strings&gt;\n    static constexpr auto formatMessage(Strings&amp;&amp;... strings) {\n        constexpr size_t total_length = (getLength(strings) + ...);\n        std::array&lt;char, total_length + 1&gt; result = {};\n\n        size_t pos = 0;\n        (appendString(result.data(), pos, strings), ...);\n        result[total_length] = '\\0';\n\n        return result;\n    }\n\n    \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u30ed\u30b0\u30ec\u30d9\u30eb\u30c1\u30a7\u30c3\u30af\n    template&lt;LogLevel L&gt;\n    static constexpr bool shouldLog() {\n        return L &gt;= ConfiguredLogLevel;\n    }\n\nprivate:\n    static constexpr size_t getLength(const char* str) {\n        size_t len = 0;\n        while (str[len] != '\\0') ++len;\n        return len;\n    }\n\n    static constexpr void appendString(char* dest, size_t&amp; pos, const char* src) {\n        while (*src != '\\0') {\n            dest[pos++] = *src++;\n        }\n    }\n\n    static constexpr LogLevel ConfiguredLogLevel = LogLevel::INFO;\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nconstexpr auto message = CompileTimeLogger&lt;&gt;::formatMessage(\n    \"Starting application at \", __TIME__\n);<\/pre>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u52b9\u679c\u304c\u5f97\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e0d\u8981\u306a\u30ed\u30b0\u51fa\u529b\u306e\u5b8c\u5168\u306a\u9664\u53bb<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30a2\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u524a\u6e1b<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u6700\u9069\u5316\u306b\u3088\u308b\u5b9f\u884c\u6642\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306e\u6700\u5c0f\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30ea\u30bd\u30fc\u30b9\u4f7f\u7528\u306e\u52b9\u7387\u5316<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u524a\u6e1b<\/li>\n\n\n\n<li>CPU\u30b5\u30a4\u30af\u30eb\u306e\u7bc0\u7d04<\/li>\n\n\n\n<li>I\/O\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u6700\u9069\u5316<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9f\u884c\u6642\u306e\u5b89\u5b9a\u6027\u5411\u4e0a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u9632\u6b62<\/li>\n\n\n\n<li>\u4e88\u6e2c\u53ef\u80fd\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u7279\u6027<\/li>\n\n\n\n<li>\u30ea\u30bd\u30fc\u30b9\u67af\u6e07\u306e\u9632\u6b62<\/li>\n<\/ul>\n\n\n\n<p>\u5b9f\u88c5\u6642\u306e\u6ce8\u610f\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6761\u4ef6\u4ed8\u304d\u30ed\u30b0<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DEBUG\u30d3\u30eb\u30c9\u3068RELEASE\u30d3\u30eb\u30c9\u3067\u9069\u5207\u306a\u30ed\u30b0\u30ec\u30d9\u30eb\u3092\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u6700\u9069\u5316\u304c\u52b9\u304f\u3088\u3046\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u6d3b\u7528<\/li>\n\n\n\n<li>\u30de\u30af\u30ed\u306e\u4f7f\u7528\u306f\u5fc5\u8981\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u30d7\u30fc\u30eb<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u306f\u7528\u9014\u306b\u5fdc\u3058\u3066\u9069\u5207\u306b\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u30c6\u30a3\u306b\u6ce8\u610f<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u30ea\u30fc\u30af\u3092\u9632\u3050\u305f\u3081\u3001\u9069\u5207\u306a\u89e3\u653e\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u8a2d\u5b9a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u6700\u9069\u5316<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u6df1\u3044\u5165\u308c\u5b50\u306b\u6ce8\u610f<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u9593\u3078\u306e\u5f71\u97ff\u3092\u8003\u616e<\/li>\n\n\n\n<li>\u30c7\u30d0\u30c3\u30b0\u30d3\u30eb\u30c9\u3067\u306e\u53ef\u8aad\u6027\u3092\u78ba\u4fdd<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u8981\u4ef6\u3084\u5236\u7d04\u306b\u5fdc\u3058\u3066\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u6700\u5927\u306e\u52b9\u679c\u3092\u767a\u63ee\u3057\u307e\u3059\u3002\u7279\u306b\u9ad8\u6027\u80fd\u304c\u6c42\u3081\u3089\u308c\u308b\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7a4d\u6975\u7684\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\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-2104","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\/2104","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=2104"}],"version-history":[{"count":2,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2104\/revisions"}],"predecessor-version":[{"id":2106,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/2104\/revisions\/2106"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}