{"id":1777,"date":"2025-03-24T08:49:55","date_gmt":"2025-03-23T23:49:55","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=1777"},"modified":"2025-03-24T08:49:55","modified_gmt":"2025-03-23T23:49:55","slug":"c-getline%e3%83%9e%e3%82%b9%e3%82%bf%e3%83%bc%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9a%e5%85%a5%e5%8a%9b%e5%87%a6%e7%90%86%e3%81%ae%e5%ae%9f%e8%a3%85%e3%81%8b%e3%82%89%e6%9c%80%e9%81%a9%e5%8c%96%e3%81%be","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=1777","title":{"rendered":"C++ getline\u30de\u30b9\u30bf\u30fc\u30ac\u30a4\u30c9\uff1a\u5165\u529b\u51e6\u7406\u306e\u5b9f\u88c5\u304b\u3089\u6700\u9069\u5316\u307e\u3067\u5b8c\u5168\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++ getline\u3068\u306f\uff1a\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">getline\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3068\u69cb\u6587<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">cin.getline\u3068std::getline\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">getline\u3092\u4f7f\u7528\u3057\u305f\u5b9f\u8df5\u7684\u306a\u6587\u5b57\u5217\u5165\u529b\u51e6\u7406<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">1\u884c\u305a\u3064\u306e\u5165\u529b\u3092\u51e6\u7406\u3059\u308b\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-5\">\u8907\u6570\u884c\u306e\u5165\u529b\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3059\u308b\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-6\">\u533a\u5207\u308a\u6587\u5b57\u3092\u6307\u5b9a\u3057\u305f\u5165\u529b\u51e6\u7406\u306e\u5b9f\u88c5<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-7\">getline\u4f7f\u7528\u6642\u306e\u6ce8\u610f\u70b9\u3068\u5bfe\u51e6\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-8\">\u5165\u529b\u30d0\u30c3\u30d5\u30a1\u306e\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-9\">\u30e1\u30e2\u30ea\u7ba1\u7406\u306b\u304a\u3051\u308b\u6ce8\u610f\u70b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-10\">\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u51e6\u7406\u3067\u306e\u6ce8\u610f\u70b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-11\">getline\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-12\">\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\u306e\u6700\u9069\u5316\u65b9\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-13\">\u5927\u91cf\u30c7\u30fc\u30bf\u51e6\u7406\u6642\u306e\u52b9\u7387\u5316\u6226\u7565<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-14\">string_view\u3092\u4f7f\u7528\u3057\u305f\u6700\u9069\u5316\u624b\u6cd5<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-15\">getline\u306e\u5b9f\u8df5\u7684\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-16\">CSV\u30d5\u30a1\u30a4\u30eb\u51e6\u7406\u306e\u5b9f\u88c5\u4f8b<\/a>      <\/li>      <li>        <a href=\"#i-17\">\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u306e\u5b9f\u88c5\u4f8b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-18\">\u30b9\u30c8\u30ea\u30fc\u30e0\u51e6\u7406\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u4f8b<\/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++ getline\u3068\u306f\uff1a\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">getline\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u3068\u69cb\u6587<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">getline\u306f\u3001C++\u3067\u6587\u5b57\u5217\u5165\u529b\u3092\u51e6\u7406\u3059\u308b\u969b\u306b\u6700\u3082\u983b\u7e41\u306b\u4f7f\u7528\u3055\u308c\u308b\u95a2\u6570\u306e\u4e00\u3064\u3067\u3059\u3002\u3053\u306e\u95a2\u6570\u306f\u3001\u6539\u884c\u6587\u5b57\u304c\u73fe\u308c\u308b\u307e\u3067\u306e\u5165\u529b\u30921\u884c\u3068\u3057\u3066\u8aad\u307f\u53d6\u308b\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u672c\u7684\u306a\u69cb\u6587\u306f\u4ee5\u4e0b\u306e2\u3064\u306e\u5f62\u5f0f\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ std::getline\u306e\u57fa\u672c\u5f62\nstd::getline(\u5165\u529b\u30b9\u30c8\u30ea\u30fc\u30e0, \u683c\u7d0d\u3059\u308b\u6587\u5b57\u5217\u5909\u6570);\n\n\/\/ \u533a\u5207\u308a\u6587\u5b57\u3092\u6307\u5b9a\u3059\u308b\u5f62\u5f0f\nstd::getline(\u5165\u529b\u30b9\u30c8\u30ea\u30fc\u30e0, \u683c\u7d0d\u3059\u308b\u6587\u5b57\u5217\u5909\u6570, \u533a\u5207\u308a\u6587\u5b57);<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5177\u4f53\u7684\u306a\u4f7f\u7528\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;iostream&gt;\n#include &lt;string&gt;\n\nint main() {\n    std::string input;\n\n    \/\/ \u6a19\u6e96\u5165\u529b\u304b\u30891\u884c\u8aad\u307f\u8fbc\u3080\n    std::getline(std::cin, input);\n\n    \/\/ \u8aad\u307f\u8fbc\u3093\u3060\u6587\u5b57\u5217\u3092\u8868\u793a\n    std::cout &lt;&lt; \"\u5165\u529b\u3055\u308c\u305f\u6587\u5b57\u5217: \" &lt;&lt; input &lt;&lt; std::endl;\n\n    return 0;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">cin.getline\u3068std::getline\u306e\u9055\u3044\u3092\u7406\u89e3\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C++\u3067\u306f2\u7a2e\u985e\u306egetline\u95a2\u6570\u304c\u5b58\u5728\u3057\u307e\u3059\uff1a<code>std::getline<\/code>\u3068<code>cin.getline<\/code>\u3067\u3059\u3002\u3053\u308c\u3089\u306b\u306f\u91cd\u8981\u306a\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n<div id=\"id-89a32921-3281-452d-b80c-ed6d46c2cb44\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u5fb4<\/th><th>std::getline<\/th><th>cin.getline<\/th><\/tr><\/thead><tbody><tr><td>\u30d8\u30c3\u30c0<\/td><td>\\&lt;string&gt;<\/td><td>\\&lt;istream&gt;<\/td><\/tr><tr><td>\u5bfe\u8c61<\/td><td>std::string<\/td><td>char\u914d\u5217<\/td><\/tr><tr><td>\u6700\u5927\u6587\u5b57\u6570\u6307\u5b9a<\/td><td>\u4e0d\u8981<\/td><td>\u5fc5\u8981<\/td><\/tr><tr><td>\u30e1\u30e2\u30ea\u7ba1\u7406<\/td><td>\u81ea\u52d5<\/td><td>\u624b\u52d5<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u305d\u308c\u305e\u308c\u306e\u4f7f\u7528\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;iostream&gt;\n#include &lt;string&gt;\n\nint main() {\n    \/\/ std::getline\u306e\u4f8b\n    std::string str1;\n    std::getline(std::cin, str1);  \/\/ \u6587\u5b57\u6570\u5236\u9650\u306a\u3057\n\n    \/\/ cin.getline\u306e\u4f8b\n    char str2[100];\n    std::cin.getline(str2, 100);   \/\/ \u6700\u592799\u6587\u5b57\u307e\u3067\u683c\u7d0d\u53ef\u80fd\n\n    std::cout &lt;&lt; \"std::getline: \" &lt;&lt; str1 &lt;&lt; std::endl;\n    std::cout &lt;&lt; \"cin.getline: \" &lt;&lt; str2 &lt;&lt; std::endl;\n\n    return 0;\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">std::getline\u3092\u4f7f\u7528\u3059\u308b\u5229\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u52d5\u7684\u306a\u30e1\u30e2\u30ea\u7ba1\u7406\u304c\u81ea\u52d5\u3067\u884c\u308f\u308c\u308b<\/li>\n\n\n\n<li>\u30d0\u30c3\u30d5\u30a1\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u306e\u5fc3\u914d\u304c\u5c11\u306a\u3044<\/li>\n\n\n\n<li>std::string\u306e\u4fbf\u5229\u306a\u6a5f\u80fd\u3092\u4f7f\u7528\u53ef\u80fd<\/li>\n\n\n\n<li>C++\u7684\u306a\u30e2\u30c0\u30f3\u306a\u66f8\u304d\u65b9\u304c\u3067\u304d\u308b<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">cin.getline\u3092\u4f7f\u7528\u3059\u308b\u5229\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u53b3\u5bc6\u306b\u5236\u5fa1\u3067\u304d\u308b<\/li>\n\n\n\n<li>C\u8a00\u8a9e\u3068\u306e\u4e92\u63db\u6027\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u9069\u3057\u3066\u3044\u308b<\/li>\n\n\n\n<li>\u56fa\u5b9a\u9577\u306e\u5165\u529b\u51e6\u7406\u306b\u9069\u3057\u3066\u3044\u308b<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u7684\u306b\u306f\u3001\u7279\u5225\u306a\u7406\u7531\u304c\u306a\u3044\u9650\u308a<code>std::getline<\/code>\u306e\u4f7f\u7528\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u3088\u308a\u5b89\u5168\u3067\u67d4\u8edf\u306a\u6587\u5b57\u5217\u51e6\u7406\u304c\u53ef\u80fd\u3060\u304b\u3089\u3067\u3059\u3002\u307e\u305f\u3001\u30e2\u30c0\u30f3\u306aC++\u306e\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u898f\u7d04\u306b\u3082\u5408\u81f4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">getline\u3092\u4f7f\u7528\u3057\u305f\u5b9f\u8df5\u7684\u306a\u6587\u5b57\u5217\u5165\u529b\u51e6\u7406<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-4\">1\u884c\u305a\u3064\u306e\u5165\u529b\u3092\u51e6\u7406\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1\u884c\u305a\u3064\u306e\u5165\u529b\u51e6\u7406\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u3084\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u3067\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u5178\u578b\u7684\u306a\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\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;iostream&gt;\n#include &lt;string&gt;\n\nint main() {\n    std::string line;\n\n    \/\/ EOF\uff08Ctrl+D\/Ctrl+Z\uff09\u307e\u3067\u8aad\u307f\u8fbc\u3080\n    while (std::getline(std::cin, line)) {\n        \/\/ \u7a7a\u884c\u3092\u30b9\u30ad\u30c3\u30d7\u3059\u308b\u5834\u5408\n        if (line.empty()) {\n            continue;\n        }\n\n        \/\/ \u5165\u529b\u3055\u308c\u305f\u884c\u3092\u51e6\u7406\n        std::cout &lt;&lt; \"\u51e6\u7406\u884c: \" &lt;&lt; line &lt;&lt; std::endl;\n    }\n\n    return 0;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u8907\u6570\u884c\u306e\u5165\u529b\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5927\u91cf\u306e\u884c\u3092\u51e6\u7406\u3059\u308b\u5834\u5408\u306f\u3001\u30e1\u30e2\u30ea\u306e\u52b9\u7387\u7684\u306a\u4f7f\u7528\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;iostream&gt;\n#include &lt;string&gt;\n#include &lt;vector&gt;\n\nclass InputProcessor {\nprivate:\n    std::vector&lt;std::string&gt; lines;\n    static const size_t BATCH_SIZE = 1000; \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u30b5\u30a4\u30ba\n\n    void processBatch() {\n        for (const auto&amp; line : lines) {\n            \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u5b9f\u88c5\n            \/\/ \u3053\u3053\u3067\u306f\u4f8b\u3068\u3057\u3066\u51fa\u529b\u306e\u307f\n            std::cout &lt;&lt; \"Processed: \" &lt;&lt; line &lt;&lt; std::endl;\n        }\n        lines.clear(); \/\/ \u30e1\u30e2\u30ea\u89e3\u653e\n    }\n\npublic:\n    void processInput() {\n        std::string line;\n        while (std::getline(std::cin, line)) {\n            lines.push_back(std::move(line)); \/\/ move\u30bb\u30de\u30f3\u30c6\u30a3\u30af\u30b9\u306e\u6d3b\u7528\n\n            \/\/ \u30d0\u30c3\u30c1\u30b5\u30a4\u30ba\u306b\u9054\u3057\u305f\u3089\u51e6\u7406\n            if (lines.size() &gt;= BATCH_SIZE) {\n                processBatch();\n            }\n        }\n\n        \/\/ \u6b8b\u308a\u306e\u884c\u3092\u51e6\u7406\n        if (!lines.empty()) {\n            processBatch();\n        }\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u533a\u5207\u308a\u6587\u5b57\u3092\u6307\u5b9a\u3057\u305f\u5165\u529b\u51e6\u7406\u306e\u5b9f\u88c5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7279\u5b9a\u306e\u533a\u5207\u308a\u6587\u5b57\u3067\u5165\u529b\u3092\u5206\u5272\u3059\u308b\u51e6\u7406\u306f\u3001\u30c7\u30fc\u30bf\u30d1\u30fc\u30b9\u51e6\u7406\u3067\u3088\u304f\u4f7f\u7528\u3055\u308c\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;iostream&gt;\n#include &lt;string&gt;\n#include &lt;sstream&gt;\n#include &lt;vector&gt;\n\n\/\/ \u533a\u5207\u308a\u6587\u5b57\u306b\u3088\u308b\u6587\u5b57\u5217\u5206\u5272\u95a2\u6570\nstd::vector&lt;std::string&gt; split(const std::string&amp; input, char delimiter) {\n    std::vector&lt;std::string&gt; result;\n    std::stringstream ss(input);\n    std::string item;\n\n    \/\/ \u533a\u5207\u308a\u6587\u5b57\u3092\u6307\u5b9a\u3057\u3066getline\u3092\u4f7f\u7528\n    while (std::getline(ss, item, delimiter)) {\n        if (!item.empty()) {  \/\/ \u7a7a\u8981\u7d20\u3092\u9664\u5916\u3059\u308b\u5834\u5408\n            result.push_back(item);\n        }\n    }\n\n    return result;\n}\n\n\/\/ \u4f7f\u7528\u4f8b\nint main() {\n    std::string input = \"apple,banana,orange,grape\";\n    char delimiter = ',';\n\n    \/\/ \u6587\u5b57\u5217\u3092\u5206\u5272\n    auto tokens = split(input, delimiter);\n\n    \/\/ \u5206\u5272\u7d50\u679c\u306e\u8868\u793a\n    for (const auto&amp; token : tokens) {\n        std::cout &lt;&lt; \"Token: \" &lt;&lt; token &lt;&lt; std::endl;\n    }\n\n    return 0;\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u7d39\u4ecb\u3057\u305f\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u7279\u306b\u6709\u7528\u3067\u3059\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u306e\u89e3\u6790\u51e6\u7406<\/li>\n\n\n\n<li>CSV\u3084TSV\u306a\u3069\u306e\u69cb\u9020\u5316\u30c7\u30fc\u30bf\u306e\u8aad\u307f\u8fbc\u307f<\/li>\n\n\n\n<li>\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30fc\u30b9\u51e6\u7406<\/li>\n\n\n\n<li>\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30c7\u30fc\u30bf\u306e\u5b9f\u6642\u9593\u51e6\u7406<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b9f\u969b\u306e\u958b\u767a\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u57fa\u672c\u30d1\u30bf\u30fc\u30f3\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u3088\u308a\u8907\u96d1\u306a\u5165\u529b\u51e6\u7406\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u969b\u306f\u3001\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u8003\u616e\u3057\u306a\u304c\u3089\u3001\u9069\u5207\u306a\u5b9f\u88c5\u65b9\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-7\">getline\u4f7f\u7528\u6642\u306e\u6ce8\u610f\u70b9\u3068\u5bfe\u51e6\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u5165\u529b\u30d0\u30c3\u30d5\u30a1\u306e\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">getline\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u6700\u3082\u983b\u7e41\u306b\u906d\u9047\u3059\u308b\u554f\u984c\u306f\u3001\u5165\u529b\u30d0\u30c3\u30d5\u30a1\u306b\u6b8b\u308b\u6539\u884c\u6587\u5b57\u306e\u51e6\u7406\u3067\u3059\u3002\u7279\u306b\u3001<code>cin<\/code>\u3068<code>getline<\/code>\u3092\u6df7\u5728\u3057\u3066\u4f7f\u7528\u3059\u308b\u969b\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;iostream&gt;\n#include &lt;string&gt;\n#include &lt;limits&gt;\n\nint main() {\n    int number;\n    std::string text;\n\n    \/\/ \u6570\u5024\u5165\u529b\n    std::cout &lt;&lt; \"\u6570\u5b57\u3092\u5165\u529b: \";\n    std::cin &gt;&gt; number;\n\n    \/\/ \u203b\u554f\u984c\u306e\u3042\u308b\u5b9f\u88c5\n    std::cout &lt;&lt; \"\u6587\u5b57\u5217\u3092\u5165\u529b: \";\n    std::getline(std::cin, text);  \/\/ \u3053\u306e\u884c\u306f\u671f\u5f85\u901a\u308a\u52d5\u4f5c\u3057\u306a\u3044\n\n    \/\/ \u6b63\u3057\u3044\u5b9f\u88c5\u65b9\u6cd5\n    std::cin.ignore(std::numeric_limits&lt;std::streamsize&gt;::max(), '\\n');  \/\/ \u30d0\u30c3\u30d5\u30a1\u3092\u30af\u30ea\u30a2\n    std::cout &lt;&lt; \"\u6587\u5b57\u5217\u3092\u5165\u529b: \";\n    std::getline(std::cin, text);  \/\/ \u3053\u308c\u3067\u671f\u5f85\u901a\u308a\u52d5\u4f5c\u3059\u308b\n\n    std::cout &lt;&lt; \"\u5165\u529b\u3055\u308c\u305f\u6570\u5b57: \" &lt;&lt; number &lt;&lt; std::endl;\n    std::cout &lt;&lt; \"\u5165\u529b\u3055\u308c\u305f\u6587\u5b57\u5217: \" &lt;&lt; text &lt;&lt; std::endl;\n\n    return 0;\n}<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5165\u529b\u30d0\u30c3\u30d5\u30a1\u306e\u554f\u984c\u3092\u9632\u3050\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><code>cin<\/code>\u3068<code>getline<\/code>\u3092\u6df7\u5728\u3055\u305b\u306a\u3044<\/li>\n\n\n\n<li>\u5fc5\u8981\u306a\u5834\u5408\u306f<code>cin.ignore()<\/code>\u3067\u30d0\u30c3\u30d5\u30a1\u3092\u30af\u30ea\u30a2<\/li>\n\n\n\n<li>\u5165\u529b\u51e6\u7406\u5c02\u7528\u306e\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u3066\u4e00\u8cab\u3057\u305f\u65b9\u6cd5\u3067\u51e6\u7406<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-9\">\u30e1\u30e2\u30ea\u7ba1\u7406\u306b\u304a\u3051\u308b\u6ce8\u610f\u70b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">getline\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u30e1\u30e2\u30ea\u7ba1\u7406\u306b\u95a2\u3059\u308b\u91cd\u8981\u306a\u8003\u616e\u4e8b\u9805\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;iostream&gt;\n#include &lt;string&gt;\n#include &lt;vector&gt;\n\nclass SafeInputHandler {\nprivate:\n    \/\/ \u6700\u5927\u8a31\u5bb9\u30e1\u30e2\u30ea\u30b5\u30a4\u30ba\uff08\u4f8b\uff1a100MB\uff09\n    static const size_t MAX_MEMORY = 100 * 1024 * 1024;\n    size_t currentMemoryUsage = 0;\n\npublic:\n    bool readLine(std::string&amp; line) {\n        if (std::getline(std::cin, line)) {\n            \/\/ \u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u3092\u30c1\u30a7\u30c3\u30af\n            currentMemoryUsage += line.capacity();\n            if (currentMemoryUsage &gt; MAX_MEMORY) {\n                throw std::runtime_error(\"\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u304c\u5236\u9650\u3092\u8d85\u3048\u307e\u3057\u305f\");\n            }\n            return true;\n        }\n        return false;\n    }\n\n    void releaseLine(const std::string&amp; line) {\n        currentMemoryUsage -= line.capacity();\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nint main() {\n    try {\n        SafeInputHandler handler;\n        std::string line;\n        std::vector&lt;std::string&gt; lines;\n\n        while (handler.readLine(line)) {\n            lines.push_back(line);\n            \/\/ \u4e0d\u8981\u306b\u306a\u3063\u305f\u884c\u306e\u30e1\u30e2\u30ea\u3092\u89e3\u653e\n            handler.releaseLine(lines.front());\n            lines.erase(lines.begin());\n        }\n    } catch (const std::runtime_error&amp; e) {\n        std::cerr &lt;&lt; \"\u30a8\u30e9\u30fc: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n        return 1;\n    }\n    return 0;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-10\">\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u51e6\u7406\u3067\u306e\u6ce8\u610f\u70b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u65e5\u672c\u8a9e\u306a\u3069\u306e\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u3092\u6271\u3046\u969b\u306e\u8003\u616e\u4e8b\u9805\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;iostream&gt;\n#include &lt;string&gt;\n#include &lt;locale&gt;\n#include &lt;codecvt&gt;\n\nclass MultibyteHandler {\npublic:\n    static std::wstring toWideString(const std::string&amp; input) {\n        try {\n            std::wstring_convert&lt;std::codecvt_utf8&lt;wchar_t&gt;&gt; converter;\n            return converter.from_bytes(input);\n        } catch (const std::exception&amp; e) {\n            std::cerr &lt;&lt; \"\u6587\u5b57\u30b3\u30fc\u30c9\u5909\u63db\u30a8\u30e9\u30fc: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n            return L\"\";\n        }\n    }\n\n    static size_t getCharacterCount(const std::string&amp; input) {\n        return toWideString(input).length();\n    }\n\n    static void processMultibyteInput() {\n        \/\/ \u30ed\u30b1\u30fc\u30eb\u306e\u8a2d\u5b9a\n        std::locale::global(std::locale(\"\"));\n        std::wcout.imbue(std::locale());\n\n        std::string input;\n        std::getline(std::cin, input);\n\n        std::wstring wideStr = toWideString(input);\n        std::wcout &lt;&lt; L\"\u6587\u5b57\u6570: \" &lt;&lt; wideStr.length() &lt;&lt; std::endl;\n    }\n};<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u51e6\u7406\u6642\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u9069\u5207\u306a\u30ed\u30b1\u30fc\u30eb\u8a2d\u5b9a<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30ed\u30b0\u30e9\u30e0\u958b\u59cb\u6642\u306b\u30ed\u30b1\u30fc\u30eb\u3092\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u6587\u5b57\u30b3\u30fc\u30c9\u306e\u6271\u3044\u3092\u660e\u793a\u7684\u306b\u6307\u5b9a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u306e\u8003\u616e<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u306f1\u6587\u5b57\u304c\u8907\u6570\u30d0\u30a4\u30c8\u3092\u4f7f\u7528<\/li>\n\n\n\n<li>\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u306f\u6587\u5b57\u6570\u3067\u306f\u306a\u304f\u30d0\u30a4\u30c8\u6570\u3067\u6307\u5b9a<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30a8\u30e9\u30fc\u51e6\u7406<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6587\u5b57\u30b3\u30fc\u30c9\u5909\u63db\u30a8\u30e9\u30fc\u306e\u9069\u5207\u306a\u51e6\u7406<\/li>\n\n\n\n<li>\u4e0d\u6b63\u306a\u30d0\u30a4\u30c8\u5217\u3078\u306e\u5bfe\u5fdc<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u6ce8\u610f\u70b9\u3092\u9069\u5207\u306b\u8003\u616e\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5b89\u5b9a\u3057\u305f\u5165\u529b\u51e6\u7406\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-11\">getline\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-12\">\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\u306e\u6700\u9069\u5316\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">getline\u64cd\u4f5c\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u4e0a\u3067\u3001\u30e1\u30e2\u30ea\u5272\u308a\u5f53\u3066\u306f\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u52b9\u7387\u7684\u306a\u30e1\u30e2\u30ea\u7ba1\u7406\u306e\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;iostream&gt;\n#include &lt;string&gt;\n#include &lt;chrono&gt;\n\nclass OptimizedStringReader {\nprivate:\n    static const size_t INITIAL_CAPACITY = 1024; \/\/ \u521d\u671f\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\n\npublic:\n    static std::string readLineOptimized() {\n        std::string str;\n        str.reserve(INITIAL_CAPACITY); \/\/ \u4e8b\u524d\u306b\u30e1\u30e2\u30ea\u3092\u78ba\u4fdd\n        std::getline(std::cin, str);\n        return str;\n    }\n\n    \/\/ \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6bd4\u8f03\u7528\u306e\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u95a2\u6570\n    static void performanceBenchmark() {\n        const int ITERATIONS = 10000;\n\n        \/\/ \u6700\u9069\u5316\u306a\u3057\u306e\u30b1\u30fc\u30b9\n        auto start1 = std::chrono::high_resolution_clock::now();\n        std::string normal;\n        for (int i = 0; i &lt; ITERATIONS; ++i) {\n            normal = \"This is a test string that will cause reallocations\";\n        }\n        auto end1 = std::chrono::high_resolution_clock::now();\n\n        \/\/ \u6700\u9069\u5316\u3042\u308a\u306e\u30b1\u30fc\u30b9\n        auto start2 = std::chrono::high_resolution_clock::now();\n        std::string optimized;\n        optimized.reserve(50); \/\/ \u5fc5\u8981\u306a\u30b5\u30a4\u30ba\u3092\u4e8b\u524d\u306b\u78ba\u4fdd\n        for (int i = 0; i &lt; ITERATIONS; ++i) {\n            optimized = \"This is a test string that will cause reallocations\";\n        }\n        auto end2 = std::chrono::high_resolution_clock::now();\n\n        \/\/ \u7d50\u679c\u306e\u8868\u793a\n        auto duration1 = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(end1 - start1);\n        auto duration2 = std::chrono::duration_cast&lt;std::chrono::microseconds&gt;(end2 - start2);\n\n        std::cout &lt;&lt; \"\u6700\u9069\u5316\u306a\u3057: \" &lt;&lt; duration1.count() &lt;&lt; \"\u03bcs\\n\";\n        std::cout &lt;&lt; \"\u6700\u9069\u5316\u3042\u308a: \" &lt;&lt; duration2.count() &lt;&lt; \"\u03bcs\\n\";\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-13\">\u5927\u91cf\u30c7\u30fc\u30bf\u51e6\u7406\u6642\u306e\u52b9\u7387\u5316\u6226\u7565<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3059\u308b\u969b\u306f\u3001\u30d0\u30c3\u30d5\u30a1\u30ea\u30f3\u30b0\u3068\u975e\u540c\u671f\u51e6\u7406\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\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;iostream&gt;\n#include &lt;string&gt;\n#include &lt;vector&gt;\n#include &lt;thread&gt;\n#include &lt;mutex&gt;\n#include &lt;condition_variable&gt;\n#include &lt;queue&gt;\n\nclass AsyncLineProcessor {\nprivate:\n    std::queue&lt;std::string&gt; buffer;\n    std::mutex mtx;\n    std::condition_variable cv;\n    bool finished = false;\n    static const size_t BUFFER_SIZE = 1000;\n\n    void processBuffer() {\n        std::vector&lt;std::string&gt; batch;\n        while (true) {\n            std::unique_lock&lt;std::mutex&gt; lock(mtx);\n            cv.wait(lock, [this]() { \n                return !buffer.empty() || finished; \n            });\n\n            if (buffer.empty() &amp;&amp; finished) {\n                break;\n            }\n\n            while (!buffer.empty() &amp;&amp; batch.size() &lt; BUFFER_SIZE) {\n                batch.push_back(std::move(buffer.front()));\n                buffer.pop();\n            }\n            lock.unlock();\n\n            \/\/ \u30d0\u30c3\u30c1\u51e6\u7406\u306e\u5b9f\u884c\n            for (const auto&amp; line : batch) {\n                \/\/ \u5b9f\u969b\u306e\u51e6\u7406\u3092\u3053\u3053\u306b\u5b9f\u88c5\n                std::cout &lt;&lt; \"Processing: \" &lt;&lt; line &lt;&lt; std::endl;\n            }\n            batch.clear();\n        }\n    }\n\npublic:\n    void processLines() {\n        \/\/ \u51e6\u7406\u30b9\u30ec\u30c3\u30c9\u306e\u958b\u59cb\n        std::thread processor(&amp;AsyncLineProcessor::processBuffer, this);\n\n        std::string line;\n        while (std::getline(std::cin, line)) {\n            std::lock_guard&lt;std::mutex&gt; lock(mtx);\n            buffer.push(std::move(line));\n            cv.notify_one();\n        }\n\n        \/\/ \u7d42\u4e86\u51e6\u7406\n        {\n            std::lock_guard&lt;std::mutex&gt; lock(mtx);\n            finished = true;\n        }\n        cv.notify_one();\n        processor.join();\n    }\n};<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-14\">string_view\u3092\u4f7f\u7528\u3057\u305f\u6700\u9069\u5316\u624b\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C++17\u304b\u3089\u5c0e\u5165\u3055\u308c\u305f<code>std::string_view<\/code>\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u5fc5\u8981\u306a\u30e1\u30e2\u30ea\u30b3\u30d4\u30fc\u3092\u524a\u6e1b\u3067\u304d\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;iostream&gt;\n#include &lt;string&gt;\n#include &lt;string_view&gt;\n#include &lt;vector&gt;\n\nclass StringViewOptimizer {\npublic:\n    static std::vector&lt;std::string_view&gt; splitEfficient(\n        std::string_view str, char delimiter) {\n        std::vector&lt;std::string_view&gt; result;\n        size_t start = 0;\n        size_t end = str.find(delimiter);\n\n        while (end != std::string_view::npos) {\n            result.push_back(str.substr(start, end - start));\n            start = end + 1;\n            end = str.find(delimiter, start);\n        }\n\n        if (start &lt; str.length()) {\n            result.push_back(str.substr(start));\n        }\n\n        return result;\n    }\n\n    static void demonstrateEfficiency() {\n        std::string input;\n        std::getline(std::cin, input);\n\n        \/\/ string_view\u3092\u4f7f\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u51e6\u7406\n        std::string_view input_view(input);\n        auto tokens = splitEfficient(input_view, ',');\n\n        for (const auto&amp; token : tokens) {\n            \/\/ string_view\u306f\u53c2\u7167\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3059\u308b\u305f\u3081\u3001\n            \/\/ \u30e1\u30e2\u30ea\u30b3\u30d4\u30fc\u304c\u767a\u751f\u3057\u306a\u3044\n            std::cout &lt;&lt; \"Token: \" &lt;&lt; token &lt;&lt; std::endl;\n        }\n    }\n};<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u7528\u3059\u308b\u969b\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30e1\u30e2\u30ea\u6700\u9069\u5316<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9069\u5207\u306a\u521d\u671f\u5bb9\u91cf\u306e\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u30e1\u30e2\u30ea\u518d\u5272\u308a\u5f53\u3066\u306e\u6700\u5c0f\u5316<\/li>\n\n\n\n<li>\u30b9\u30de\u30fc\u30c8\u30dd\u30a4\u30f3\u30bf\u306e\u6d3b\u7528<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u51e6\u7406\u306e\u52b9\u7387\u5316<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d0\u30c3\u30c1\u51e6\u7406\u306e\u5b9f\u88c5<\/li>\n\n\n\n<li>\u975e\u540c\u671f\u51e6\u7406\u306e\u6d3b\u7528<\/li>\n\n\n\n<li>\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u52b9\u679c\u7684\u306a\u5229\u7528<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a08\u6e2c<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b9a\u671f\u7684\u306a\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u5b9f\u65bd<\/li>\n\n\n\n<li>\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306e\u7279\u5b9a<\/li>\n\n\n\n<li>\u6700\u9069\u5316\u52b9\u679c\u306e\u691c\u8a3c<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u6280\u8853\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u51e6\u7406\u3067\u3082\u52b9\u7387\u7684\u306a\u5b9f\u88c5\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-15\">getline\u306e\u5b9f\u8df5\u7684\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-16\">CSV\u30d5\u30a1\u30a4\u30eb\u51e6\u7406\u306e\u5b9f\u88c5\u4f8b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CSV\u30d5\u30a1\u30a4\u30eb\u306e\u8aad\u307f\u8fbc\u307f\u3068\u89e3\u6790\u306f\u3001getline\u306e\u4ee3\u8868\u7684\u306a\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3067\u3059\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;iostream&gt;\n#include &lt;fstream&gt;\n#include &lt;string&gt;\n#include &lt;vector&gt;\n#include &lt;sstream&gt;\n\nclass CSVReader {\nprivate:\n    std::ifstream file;\n    char delimiter;\n\npublic:\n    CSVReader(const std::string&amp; filename, char delim = ',') \n        : delimiter(delim) {\n        file.open(filename);\n        if (!file.is_open()) {\n            throw std::runtime_error(\"\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3051\u307e\u305b\u3093\u3067\u3057\u305f: \" + filename);\n        }\n    }\n\n    std::vector&lt;std::string&gt; readNextRow() {\n        std::vector&lt;std::string&gt; row;\n        std::string line;\n\n        if (std::getline(file, line)) {\n            std::stringstream ss(line);\n            std::string cell;\n\n            while (std::getline(ss, cell, delimiter)) {\n                \/\/ \u524d\u5f8c\u306e\u7a7a\u767d\u3092\u524a\u9664\n                cell.erase(0, cell.find_first_not_of(\" \\t\"));\n                cell.erase(cell.find_last_not_of(\" \\t\") + 1);\n                row.push_back(cell);\n            }\n        }\n\n        return row;\n    }\n\n    \/\/ \u30d8\u30c3\u30c0\u30fc\u884c\u3092\u8aad\u307f\u8fbc\u3080\n    std::vector&lt;std::string&gt; readHeader() {\n        return readNextRow();\n    }\n\n    ~CSVReader() {\n        if (file.is_open()) {\n            file.close();\n        }\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nint main() {\n    try {\n        CSVReader reader(\"data.csv\");\n\n        \/\/ \u30d8\u30c3\u30c0\u30fc\u306e\u8aad\u307f\u8fbc\u307f\n        auto headers = reader.readHeader();\n        for (const auto&amp; header : headers) {\n            std::cout &lt;&lt; header &lt;&lt; \"\\t\";\n        }\n        std::cout &lt;&lt; std::endl;\n\n        \/\/ \u30c7\u30fc\u30bf\u884c\u306e\u8aad\u307f\u8fbc\u307f\n        std::vector&lt;std::string&gt; row;\n        while (!(row = reader.readNextRow()).empty()) {\n            for (const auto&amp; cell : row) {\n                std::cout &lt;&lt; cell &lt;&lt; \"\\t\";\n            }\n            std::cout &lt;&lt; std::endl;\n        }\n    }\n    catch (const std::exception&amp; e) {\n        std::cerr &lt;&lt; \"\u30a8\u30e9\u30fc: \" &lt;&lt; e.what() &lt;&lt; std::endl;\n        return 1;\n    }\n\n    return 0;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-17\">\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u8fbc\u307f\u306e\u5b9f\u88c5\u4f8b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">INI\u30b9\u30bf\u30a4\u30eb\u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3092\u51e6\u7406\u3059\u308b\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=\"\">#include &lt;iostream&gt;\n#include &lt;fstream&gt;\n#include &lt;string&gt;\n#include &lt;map&gt;\n#include &lt;regex&gt;\n\nclass ConfigReader {\nprivate:\n    std::map&lt;std::string, std::map&lt;std::string, std::string&gt;&gt; config;\n    std::string currentSection;\n\n    void parseLine(const std::string&amp; line) {\n        \/\/ \u7a7a\u884c\u3084\u30b3\u30e1\u30f3\u30c8\u3092\u30b9\u30ad\u30c3\u30d7\n        if (line.empty() || line[0] == ';' || line[0] == '#') {\n            return;\n        }\n\n        \/\/ \u30bb\u30af\u30b7\u30e7\u30f3\u884c\u306e\u51e6\u7406 [section]\n        if (line[0] == '[' &amp;&amp; line.back() == ']') {\n            currentSection = line.substr(1, line.length() - 2);\n            return;\n        }\n\n        \/\/ key=value \u306e\u51e6\u7406\n        size_t equalPos = line.find('=');\n        if (equalPos != std::string::npos) {\n            std::string key = line.substr(0, equalPos);\n            std::string value = line.substr(equalPos + 1);\n\n            \/\/ \u524d\u5f8c\u306e\u7a7a\u767d\u3092\u524a\u9664\n            key = std::regex_replace(key, std::regex(\"^\\\\s+|\\\\s+$\"), \"\");\n            value = std::regex_replace(value, std::regex(\"^\\\\s+|\\\\s+$\"), \"\");\n\n            config[currentSection][key] = value;\n        }\n    }\n\npublic:\n    bool loadConfig(const std::string&amp; filename) {\n        std::ifstream file(filename);\n        if (!file.is_open()) {\n            return false;\n        }\n\n        std::string line;\n        while (std::getline(file, line)) {\n            parseLine(line);\n        }\n\n        return true;\n    }\n\n    std::string getValue(const std::string&amp; section, const std::string&amp; key,\n                        const std::string&amp; defaultValue = \"\") const {\n        auto sectionIt = config.find(section);\n        if (sectionIt != config.end()) {\n            auto keyIt = sectionIt-&gt;second.find(key);\n            if (keyIt != sectionIt-&gt;second.end()) {\n                return keyIt-&gt;second;\n            }\n        }\n        return defaultValue;\n    }\n};\n\n\/\/ \u4f7f\u7528\u4f8b\nint main() {\n    ConfigReader config;\n    if (config.loadConfig(\"settings.ini\")) {\n        std::cout &lt;&lt; \"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u540d: \" \n                  &lt;&lt; config.getValue(\"Database\", \"Name\", \"default_db\") &lt;&lt; std::endl;\n        std::cout &lt;&lt; \"\u30dd\u30fc\u30c8: \" \n                  &lt;&lt; config.getValue(\"Server\", \"Port\", \"8080\") &lt;&lt; std::endl;\n    }\n    return 0;\n}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-18\">\u30b9\u30c8\u30ea\u30fc\u30e0\u51e6\u7406\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u4f8b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u306e\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u76e3\u8996\u3068\u51e6\u7406\u306e\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=\"\">#include &lt;iostream&gt;\n#include &lt;fstream&gt;\n#include &lt;string&gt;\n#include &lt;thread&gt;\n#include &lt;chrono&gt;\n#include &lt;atomic&gt;\n\nclass LogMonitor {\nprivate:\n    std::atomic&lt;bool&gt; running{true};\n    std::string filename;\n\n    void processLine(const std::string&amp; line) {\n        \/\/ \u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u62bd\u51fa\uff08\u4f8b\uff1a[2024-12-19 10:30:45]\uff09\n        std::regex timestamp_pattern(R\"(\\[([\\d-]+ [\\d:]+)\\])\");\n        std::smatch matches;\n\n        if (std::regex_search(line, matches, timestamp_pattern)) {\n            std::string timestamp = matches[1];\n            std::string message = line.substr(matches[0].length());\n\n            \/\/ \u30a8\u30e9\u30fc\u30ec\u30d9\u30eb\u306e\u5224\u5b9a\u3068\u51e6\u7406\n            if (line.find(\"ERROR\") != std::string::npos) {\n                std::cerr &lt;&lt; \"\u30a8\u30e9\u30fc\u691c\u51fa: \" &lt;&lt; timestamp &lt;&lt; message &lt;&lt; std::endl;\n            } else if (line.find(\"WARNING\") != std::string::npos) {\n                std::cout &lt;&lt; \"\u8b66\u544a\u691c\u51fa: \" &lt;&lt; timestamp &lt;&lt; message &lt;&lt; std::endl;\n            }\n        }\n    }\n\npublic:\n    LogMonitor(const std::string&amp; logfile) : filename(logfile) {}\n\n    void start() {\n        std::ifstream file(filename, std::ios::in);\n        if (!file.is_open()) {\n            throw std::runtime_error(\"\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3051\u307e\u305b\u3093\");\n        }\n\n        \/\/ \u30d5\u30a1\u30a4\u30eb\u672b\u5c3e\u306b\u79fb\u52d5\n        file.seekg(0, std::ios::end);\n\n        while (running) {\n            std::string line;\n            if (std::getline(file, line)) {\n                processLine(line);\n            } else {\n                \/\/ \u65b0\u3057\u3044\u30ed\u30b0\u3092\u5f85\u3064\n                std::this_thread::sleep_for(std::chrono::milliseconds(100));\n                file.clear();  \/\/ EOF\u30d5\u30e9\u30b0\u3092\u30af\u30ea\u30a2\n            }\n        }\n    }\n\n    void stop() {\n        running = false;\n    }\n};<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u5b9f\u88c5\u4f8b\u306f\u3001getline\u3092\u4f7f\u7528\u3057\u305f\u5b9f\u8df5\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u306e\u57fa\u790e\u3068\u306a\u308a\u307e\u3059\u3002\u5b9f\u969b\u306e\u958b\u767a\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u308a\u3001\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u62e1\u5f35\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u8907\u96d1\u306a\u6a5f\u80fd\u3092\u5b9f\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; 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