{"id":11678,"date":"2024-03-14T14:32:11","date_gmt":"2024-03-14T14:32:11","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-use-unsafe-in-c\/"},"modified":"2025-08-04T15:26:06","modified_gmt":"2025-08-04T15:26:06","slug":"how-to-use-unsafe-in-c","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-use-unsafe-in-c\/","title":{"rendered":"C# Unsafe Keyword Guide"},"content":{"rendered":"<p>In C#, using the unsafe keyword allows for the use of unsafe pointer operations in the code. Here is a simple example demonstrating how to use the unsafe keyword in C#:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">using<\/span> System;\r\n\r\n<span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">Program<\/span>\r\n{\r\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">unsafe<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title\">Main<\/span>()<\/span>\r\n    {\r\n        <span class=\"hljs-built_in\">int<\/span>[] numbers = { <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\r\n        <span class=\"hljs-keyword\">fixed<\/span> (<span class=\"hljs-built_in\">int<\/span>* p = numbers)\r\n        {\r\n            <span class=\"hljs-keyword\">for<\/span> (<span class=\"hljs-built_in\">int<\/span> i = <span class=\"hljs-number\">0<\/span>; i &lt; <span class=\"hljs-number\">5<\/span>; i++)\r\n            {\r\n                Console.WriteLine(*(p + i));\r\n            }\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>In this example, we declared the Main method using the unsafe keyword and used a fixed statement in the method body to create a pointer p to an array of integers called numbers. We then used the pointer p to access elements in the array and printed out their values.<\/p>\n<p>It is important to note that when using the &#8220;unsafe&#8221; keyword, you need to enable the &#8220;Allow unsafe code&#8221; option in the project properties. This can be done by setting it to True in Visual Studio under Project Properties -> Build -> Allow unsafe code.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In C#, using the unsafe keyword allows for the use of unsafe pointer operations in the code. Here is a simple example demonstrating how to use the unsafe keyword in C#: using System; class Program { static unsafe void Main() { int[] numbers = { 1, 2, 3, 4, 5 }; fixed (int* p = [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[15120,381,15123,15121,15122],"class_list":["post-11678","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-c-unsafe","tag-c-programming","tag-fixed-statement","tag-pointer-operations","tag-unsafe-code"],"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>C# Unsafe Keyword Guide - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to use unsafe in C# with practical examples and pointer operations. 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