{"id":15629,"date":"2024-03-15T11:29:49","date_gmt":"2024-03-15T11:29:49","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-does-the-term-real-constant-refer-to-in-the-c-programming-language\/"},"modified":"2025-08-06T20:13:39","modified_gmt":"2025-08-06T20:13:39","slug":"what-does-the-term-real-constant-refer-to-in-the-c-programming-language","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-does-the-term-real-constant-refer-to-in-the-c-programming-language\/","title":{"rendered":"What does the term “real constant” refer to in the C pr…"},"content":{"rendered":"

In the C programming language, real constants refer to constants that represent real numbers (floating-point numbers). They are used to represent numerical values with decimal parts.<\/p>\n

Constant literals can be written in the following ways:<\/p>\n

    \n
  1. Decimal representation: Real constants can be represented using decimal numbers, such as 3.14, 0.5, etc.<\/li>\n
  2. Exponential notation (scientific notation): Exponential notation can be used to represent very large or very small real constants in order to make it more convenient. It consists of a number, followed by an ‘e’ or ‘E’ and another number, representing mEn, where m is the mantissa and n is the exponent. For example, 6.022e23 represents Avogadro’s number.<\/li>\n
  3. Octal representation: In C language, octal real constants begin with 0 followed by one or more octal digits. For example, 034.56 represents the octal number 34.56.<\/li>\n
  4. In hexadecimal notation, hexadecimal floating-point constants start with 0x or 0X, followed by one or more hexadecimal digits and an optional decimal point. For example, 0x1A.2p3 represents the hexadecimal number 1A.2 multiplied by 2 to the power of 3.<\/li>\n<\/ol>\n

    Please note that real constants default to the double type. If you want to specifically specify it as a float type, you can add an f or F suffix after the constant. For example, 3.14f represents a real constant of type float.<\/p>\n

    In the C language, real constants are constants used to store floating-point numerical values, and can be used in variable initialization, assignment, and expressions.<\/p>\n","protected":false},"excerpt":{"rendered":"

    In the C programming language, real constants refer to constants that represent real numbers (floating-point numbers). They are used to represent numerical values with decimal parts. Constant literals can be written in the following ways: Decimal representation: Real constants can be represented using decimal numbers, such as 3.14, 0.5, etc. Exponential notation (scientific notation): Exponential […]<\/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-15629","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-development","tag-guide","tag-programming","tag-technology","tag-tutorial"],"yoast_head":"\nWhat does the term "real constant" refer to in the C pr... - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn about what does the term "real constant" refer to in the c programming language?. 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