{"id":2033,"date":"2024-03-12T09:07:50","date_gmt":"2024-03-12T09:07:50","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-can-we-use-strlen-in-c-language-to-calculate-the-length-of-an-array\/"},"modified":"2024-03-28T14:02:08","modified_gmt":"2024-03-28T14:02:08","slug":"how-can-we-use-strlen-in-c-language-to-calculate-the-length-of-an-array","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-can-we-use-strlen-in-c-language-to-calculate-the-length-of-an-array\/","title":{"rendered":"How can we use strlen in C language to calculate the length of an array?"},"content":{"rendered":"<p>When using the strlen function to calculate the length of an array, it is important to pass the array as a parameter to the function. However, it is crucial to note that the strlen function is used to calculate the length of a string, which is the length of a character array, and not the length of a general array.<\/p>\n<p>To calculate the length of a regular array, you can achieve it by the following method:<\/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\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\">int<\/span> arr[] = {<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>};\r\n    <span class=\"hljs-type\">int<\/span> len = <span class=\"hljs-keyword\">sizeof<\/span>(arr) \/ <span class=\"hljs-keyword\">sizeof<\/span>(arr[<span class=\"hljs-number\">0<\/span>]);\r\n    \r\n    <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"\u6570\u7ec4\u7684\u957f\u5ea6\u4e3a\uff1a%d\\n\"<\/span>, len);\r\n    \r\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">0<\/span>;\r\n}\r\n<\/code><\/pre>\n<p>In the example above, by using the sizeof operator, you can obtain the total number of bytes occupied by an array, then by dividing it by the number of bytes per element, you can get the length of the array.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>More tutorials<\/p>\n<p><a class=\"LinkSuggestion__Link-sc-1gewdgc-4 cLBplk\" href=\"https:\/\/www.silicloud.com\/blog\/how-can-you-determine-the-standard-deviation-in-r\/\" target=\"_blank\" rel=\"noopener\">How can you determine the standard deviation in R?<span class=\"sc-gswNZR eASTkv\">(Opens in a new browser tab)<\/span><\/a><\/p>\n<p><a class=\"LinkSuggestion__Link-sc-1gewdgc-4 cLBplk\" href=\"https:\/\/www.silicloud.com\/blog\/converting-a-string-to-a-byte-array-and-a-byte-array-to-a-string-in-the-java-programming-language\/\" target=\"_blank\" rel=\"noopener\">Converting string to array in the Java programming language<span class=\"sc-gswNZR eASTkv\">(Opens in a new browser tab)<\/span><\/a><\/p>\n<p><a class=\"LinkSuggestion__Link-sc-1gewdgc-4 cLBplk\" href=\"https:\/\/www.silicloud.com\/blog\/how-to-delete-elements-from-an-array-in-java\/\" target=\"_blank\" rel=\"noopener\">How to Delete Elements from an Array in Java<span class=\"sc-gswNZR eASTkv\">(Opens in a new browser tab)<\/span><\/a><\/p>\n<p><a class=\"LinkSuggestion__Link-sc-1gewdgc-4 cLBplk\" href=\"https:\/\/www.silicloud.com\/blog\/how-can-oracle-extract-a-specific-substring\/\" target=\"_blank\" rel=\"noopener\">How can Oracle extract a specific substring?<span class=\"sc-gswNZR eASTkv\">(Opens in a new browser tab)<\/span><\/a><\/p>\n<p><a class=\"LinkSuggestion__Link-sc-1gewdgc-4 cLBplk\" href=\"https:\/\/www.silicloud.com\/blog\/what-are-the-parameters-of-the-rpad-function-in-oracle\/\" target=\"_blank\" rel=\"noopener\">What are the parameters of the RPAD function in Oracle?<span class=\"sc-gswNZR eASTkv\">(Opens in a new browser tab)<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>When using the strlen function to calculate the length of an array, it is important to pass the array as a parameter to the function. However, it is crucial to note that the strlen function is used to calculate the length of a string, which is the length of a character array, and not the [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2033","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) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How can we use strlen in C language to calculate the length of an array? - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"When using the strlen function to calculate the length of an array, it is important to pass the array as a parameter to the function.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-can-we-use-strlen-in-c-language-to-calculate-the-length-of-an-array\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How can we use strlen in C language to calculate the length of an array?\" \/>\n<meta property=\"og:description\" content=\"When using the strlen function to calculate the length of an array, it is important to pass the array as a parameter to the function.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-can-we-use-strlen-in-c-language-to-calculate-the-length-of-an-array\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-12T09:07:50+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-28T14:02:08+00:00\" \/>\n<meta name=\"author\" content=\"Liam\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Liam\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-we-use-strlen-in-c-language-to-calculate-the-length-of-an-array\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-we-use-strlen-in-c-language-to-calculate-the-length-of-an-array\/\"},\"author\":{\"name\":\"Liam\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/23786905eb7b377f45ddb01c17da7671\"},\"headline\":\"How can we use strlen in C language to calculate the length of an array?\",\"datePublished\":\"2024-03-12T09:07:50+00:00\",\"dateModified\":\"2024-03-28T14:02:08+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-we-use-strlen-in-c-language-to-calculate-the-length-of-an-array\/\"},\"wordCount\":209,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-we-use-strlen-in-c-language-to-calculate-the-length-of-an-array\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-can-we-use-strlen-in-c-language-to-calculate-the-length-of-an-array\/\",\"name\":\"How can we use strlen in C language to calculate the length of an array? 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