{"id":15753,"date":"2024-03-15T11:41:23","date_gmt":"2024-03-15T11:41:23","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-does-c-language-determine-the-type-of-constants\/"},"modified":"2025-08-06T21:16:11","modified_gmt":"2025-08-06T21:16:11","slug":"how-does-c-language-determine-the-type-of-constants","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-does-c-language-determine-the-type-of-constants\/","title":{"rendered":"How does C language determine the type of constants?"},"content":{"rendered":"

The type of constants in the C programming language can be determined in the following way:<\/p>\n

1. Type of integer constants:<\/p>\n

    \n
  1. By default, integer constants are treated as signed integers of type int.<\/li>\n
  2. If a constant is followed by “L” or “l”, it indicates a long integer type, specifically long.<\/li>\n
  3. If a constant is followed by “U” or “u”, it indicates an unsigned integer type as unsigned int.<\/li>\n
  4. If a constant is followed by “UL”, “ul”, “LU” or “lu”, it signifies an unsigned long integer type.<\/li>\n<\/ol>\n

    The type of floating-point constants:<\/p>\n

      \n
    1. By default, floating-point constants are treated as double-precision floating point numbers with the type double.<\/li>\n
    2. If a constant is followed by “F” or “f”, it indicates a single-precision floating point number, with the type as float.<\/li>\n
    3. If a constant is followed by “L” or “l”, it means long double floating-point, which is of type long double.<\/li>\n<\/ol>\n

      3. Types of character constants:<\/p>\n

        \n
      1. Character constants are preceded by single quotes and are of type char.<\/li>\n<\/ol>\n

        The type of string constants:<\/p>\n

          \n
        1. String constants are characterized by being preceded by double quotes and being of type char arrays.<\/li>\n<\/ol>\n

          It should be noted that in the C programming language, constant types are determined at compile time, not at runtime.<\/p>\n","protected":false},"excerpt":{"rendered":"

          The type of constants in the C programming language can be determined in the following way: 1. Type of integer constants: By default, integer constants are treated as signed integers of type int. If a constant is followed by “L” or “l”, it indicates a long integer type, specifically long. If a constant is followed […]<\/p>\n","protected":false},"author":9,"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":[453,1402,299,1404,1403],"class_list":["post-15753","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-development","tag-guide","tag-programming","tag-technology","tag-tutorial"],"yoast_head":"\nHow does C language determine the type of constants? - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn about how does c language determine the type of constants?. 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