{"id":23043,"date":"2024-03-16T00:44:30","date_gmt":"2024-03-16T00:44:30","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/"},"modified":"2024-03-22T00:19:19","modified_gmt":"2024-03-22T00:19:19","slug":"how-to-find-the-length-of-a-structure-in-c-using-sizeof","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/","title":{"rendered":"How to find the length of a structure in C using sizeof?"},"content":{"rendered":"<p>In the C language, the sizeof operator can be used to determine the size of a structure. The sizeof operator calculates the number of bytes occupied by a variable, constant, or type. The length of a structure is equal to the total length of its member variables, including padding bytes.<\/p>\n<p>For example, suppose we have the following structure definition:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-class\"><span class=\"hljs-keyword\">struct<\/span> <span class=\"hljs-title\">Student<\/span> {<\/span>\r\n    <span class=\"hljs-type\">int<\/span> id;\r\n    <span class=\"hljs-type\">char<\/span> name[<span class=\"hljs-number\">20<\/span>];\r\n    <span class=\"hljs-type\">float<\/span> score;\r\n};\r\n<\/code><\/pre>\n<p>To obtain the size of the structure Student, you can use the sizeof operator.<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-class\"><span class=\"hljs-keyword\">struct<\/span> <span class=\"hljs-title\">Student<\/span> <span class=\"hljs-title\">student<\/span>;<\/span>\r\n<span class=\"hljs-type\">int<\/span> length = <span class=\"hljs-keyword\">sizeof<\/span>(student);\r\n<\/code><\/pre>\n<p>In the example above, the length variable will contain the size of the Student struct in bytes. Note that the sizeof operator returns a value of type size_t, which represents the number of bytes occupied.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the C language, the sizeof operator can be used to determine the size of a structure. The sizeof operator calculates the number of bytes occupied by a variable, constant, or type. The length of a structure is equal to the total length of its member variables, including padding bytes. For example, suppose we have [&hellip;]<\/p>\n","protected":false},"author":8,"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-23043","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 to find the length of a structure in C using sizeof? - Blog - Silicon Cloud<\/title>\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-to-find-the-length-of-a-structure-in-c-using-sizeof\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to find the length of a structure in C using sizeof?\" \/>\n<meta property=\"og:description\" content=\"In the C language, the sizeof operator can be used to determine the size of a structure. The sizeof operator calculates the number of bytes occupied by a variable, constant, or type. The length of a structure is equal to the total length of its member variables, including padding bytes. For example, suppose we have [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/\" \/>\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=\"2024-03-16T00:44:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-22T00:19:19+00:00\" \/>\n<meta name=\"author\" content=\"William Carter\" \/>\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=\"William Carter\" \/>\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-to-find-the-length-of-a-structure-in-c-using-sizeof\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/\"},\"author\":{\"name\":\"William Carter\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/f697031891aacefc4b681d139781d3c0\"},\"headline\":\"How to find the length of a structure in C using sizeof?\",\"datePublished\":\"2024-03-16T00:44:30+00:00\",\"dateModified\":\"2024-03-22T00:19:19+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/\"},\"wordCount\":121,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/\",\"name\":\"How to find the length of a structure in C using sizeof? - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\"},\"datePublished\":\"2024-03-16T00:44:30+00:00\",\"dateModified\":\"2024-03-22T00:19:19+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.silicloud.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How to find the length of a structure in C using sizeof?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"name\":\"Silicon Cloud Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\",\"name\":\"Silicon Cloud Blog\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"contentUrl\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"width\":1024,\"height\":1024,\"caption\":\"Silicon Cloud Blog\"},\"image\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\",\"https:\/\/twitter.com\/SiliCloudGlobal\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/f697031891aacefc4b681d139781d3c0\",\"name\":\"William Carter\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/1786698071dd8d74bec894b512f9e3c610c3a2a32985f67e688976cee3c8bbef?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/1786698071dd8d74bec894b512f9e3c610c3a2a32985f67e688976cee3c8bbef?s=96&d=mm&r=g\",\"caption\":\"William Carter\"},\"url\":\"https:\/\/www.silicloud.com\/blog\/author\/williamcarter\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"How to find the length of a structure in C using sizeof? - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/","og_locale":"en_US","og_type":"article","og_title":"How to find the length of a structure in C using sizeof?","og_description":"In the C language, the sizeof operator can be used to determine the size of a structure. The sizeof operator calculates the number of bytes occupied by a variable, constant, or type. The length of a structure is equal to the total length of its member variables, including padding bytes. For example, suppose we have [&hellip;]","og_url":"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/","og_site_name":"Blog - Silicon Cloud","article_publisher":"https:\/\/www.facebook.com\/SiliCloudGlobal\/","article_published_time":"2024-03-16T00:44:30+00:00","article_modified_time":"2024-03-22T00:19:19+00:00","author":"William Carter","twitter_card":"summary_large_image","twitter_creator":"@SiliCloudGlobal","twitter_site":"@SiliCloudGlobal","twitter_misc":{"Written by":"William Carter","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/#article","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/"},"author":{"name":"William Carter","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/f697031891aacefc4b681d139781d3c0"},"headline":"How to find the length of a structure in C using sizeof?","datePublished":"2024-03-16T00:44:30+00:00","dateModified":"2024-03-22T00:19:19+00:00","mainEntityOfPage":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/"},"wordCount":121,"commentCount":0,"publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/","url":"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/","name":"How to find the length of a structure in C using sizeof? - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/#website"},"datePublished":"2024-03-16T00:44:30+00:00","dateModified":"2024-03-22T00:19:19+00:00","breadcrumb":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/blog\/how-to-find-the-length-of-a-structure-in-c-using-sizeof\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.silicloud.com\/blog\/"},{"@type":"ListItem","position":2,"name":"How to find the length of a structure in C using sizeof?"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/blog\/#website","url":"https:\/\/www.silicloud.com\/blog\/","name":"Silicon Cloud Blog","description":"","publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.silicloud.com\/blog\/#organization","name":"Silicon Cloud Blog","url":"https:\/\/www.silicloud.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","contentUrl":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","width":1024,"height":1024,"caption":"Silicon Cloud Blog"},"image":{"@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/SiliCloudGlobal\/","https:\/\/twitter.com\/SiliCloudGlobal"]},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/f697031891aacefc4b681d139781d3c0","name":"William Carter","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/1786698071dd8d74bec894b512f9e3c610c3a2a32985f67e688976cee3c8bbef?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/1786698071dd8d74bec894b512f9e3c610c3a2a32985f67e688976cee3c8bbef?s=96&d=mm&r=g","caption":"William Carter"},"url":"https:\/\/www.silicloud.com\/blog\/author\/williamcarter\/"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/23043","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/comments?post=23043"}],"version-history":[{"count":1,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/23043\/revisions"}],"predecessor-version":[{"id":57000,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/23043\/revisions\/57000"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/media?parent=23043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/categories?post=23043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/tags?post=23043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}