{"id":117308,"date":"2024-03-23T09:54:57","date_gmt":"2024-03-23T00:54:57","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/c%e8%a8%80%e8%aa%9e%e3%81%aestrlen%e9%96%a2%e6%95%b0%e3%81%ae%e6%ad%a3%e3%81%97%e3%81%84%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%82%92%e6%95%99%e3%81%88%e3%81%a6%e3%81%8f%e3%81%a0%e3%81%95%e3%81%84\/"},"modified":"2024-03-26T19:35:37","modified_gmt":"2024-03-26T10:35:37","slug":"c%e8%a8%80%e8%aa%9e%e3%81%aestrlen%e9%96%a2%e6%95%b0%e3%81%ae%e6%ad%a3%e3%81%97%e3%81%84%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%82%92%e6%95%99%e3%81%88%e3%81%a6%e3%81%8f%e3%81%a0%e3%81%95%e3%81%84","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/c%e8%a8%80%e8%aa%9e%e3%81%aestrlen%e9%96%a2%e6%95%b0%e3%81%ae%e6%ad%a3%e3%81%97%e3%81%84%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%82%92%e6%95%99%e3%81%88%e3%81%a6%e3%81%8f%e3%81%a0%e3%81%95%e3%81%84\/","title":{"rendered":"C\u8a00\u8a9e\u306estrlen\u95a2\u6570\u306e\u6b63\u3057\u3044\u4f7f\u7528\u65b9\u6cd5\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044"},"content":{"rendered":"<p>C\u8a00\u8a9e\u306estrlen\u95a2\u6570\u306e\u6b63\u3057\u3044\u4f7f\u3044\u65b9\u306f\u3001<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;string.h&gt;<\/span><\/span>\r\n\r\n<span class=\"hljs-type\">size_t<\/span> <span class=\"hljs-title function_\">strlen<\/span><span class=\"hljs-params\">(<span class=\"hljs-type\">const<\/span> <span class=\"hljs-type\">char<\/span> *str)<\/span>;\r\n<\/code><\/pre>\n<p>\u3053\u306e\u95a2\u6570\u306f\u6587\u5b57\u5217\u306e\u9577\u3055\u3092\u8a08\u7b97\u3059\u308b\u305f\u3081\u306b\u4f7f\u308f\u308c\u3001\u6587\u5b57\u5217\u4e2d\u306e\u6587\u5b57\u306e\u6570\uff08\u672b\u5c3e\u306e\u7a7a\u6587\u5b57&#8217;\\0&#8217;\u306f\u542b\u307e\u306a\u3044\uff09\u304c\u305d\u308c\u3067\u3059\u3002\u5f15\u6570\u306estr\u306f\u9577\u3055\u3092\u8a08\u7b97\u3057\u305f\u3044\u6587\u5b57\u5217\u3078\u306e\u30dd\u30a4\u30f3\u30bf\u3067\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306f\u7528\u4f8b\u3067\u3059:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;stdio.h&gt;<\/span><\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;string.h&gt;<\/span><\/span>\r\n\r\n<span class=\"hljs-type\">int<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">()<\/span> {\r\n    <span class=\"hljs-type\">char<\/span> str[] = <span class=\"hljs-string\">\"Hello, world!\"<\/span>;\r\n    <span class=\"hljs-type\">int<\/span> length = <span class=\"hljs-built_in\">strlen<\/span>(str);\r\n    <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"String length: %d\\n\"<\/span>, length);\r\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">0<\/span>;\r\n}\r\n<\/code><\/pre>\n<p>\u7d50\u679c\u306e\u6587\u5b57\u6570: 13<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u8a00\u8a9e\u306estrlen\u95a2\u6570\u306e\u6b63\u3057\u3044\u4f7f\u3044\u65b9\u306f\u3001 #include &lt;string.h&gt; size_t strlen(const char *str); \u3053\u306e\u95a2\u6570\u306f\u6587\u5b57\u5217\u306e\u9577\u3055\u3092\u8a08\u7b97\u3059\u308b\u305f\u3081\u306b\u4f7f\u308f\u308c\u3001\u6587\u5b57\u5217\u4e2d\u306e\u6587\u5b57 [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-117308","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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