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  1. User-Defined Function in C - GeeksforGeeks

    Jul 23, 2025 · A user-defined function is a type of function in C language that is defined by the user himself to perform some specific task. It provides code reusability and modularity to our program.

  2. User-defined function - Wikipedia

    A user-defined function (UDF) is a function provided by the user of a program or environment, in a context where the usual assumption is that functions are built into the program or environment. UDFs …

  3. User-defined Functions in C - Online Tutorials Library

    User-defined function is defined by the user to perform specific task to achieve the code reusability and modularity. To create and use the user-defined function, you do not need use any built-in library. …

  4. C User-defined functions - Programiz

    A function is a block of code that performs a specific task. In this tutorial, you will learn to create user-defined functions in C programming with the help of an example.

  5. What is User-Defined Function? - Definition from Amazing Algorithms

    What is User-Defined Function? - Definition from Amazing Algorithms. A User-Defined Function (UDF) is a custom function created by the user within a programming language, allowing repetitive tasks to be …

  6. User-defined Function in C Language (With Examples)

    User-defined functions in C are functions created by programmers to perform specific tasks. Unlike built-in functions like printf () or scanf (), these are custom functions according to the needs of the program.

  7. User-Defined Functions in C Language - Intellipaat

    Oct 29, 2025 · What is a User-Defined Function in C? A user-defined function in C is a function that is created and defined by the user to do a specific programming task. It is a type of function in C. This …

  8. User Defined Functions in C: Types, Syntax, and Examples

    Apr 7, 2025 · what is a user defined function in c? When it comes to mastering C programming, one of the most powerful tools in a programmer's arsenal is the ability to use user defined functions in C. …

  9. User-Defined Function in C – TheLinuxCode

    May 26, 2025 · In this comprehensive guide, I‘ll walk you through everything you need to know about user-defined functions in C, from the basics to advanced techniques that even seasoned …

  10. User Defined Functions in C - Newtum

    May 13, 2025 · Unlike library functions (like printf() or scanf()) that are built into C, user-defined functions are written from scratch to suit specific needs. Think of them like reusable recipes—you create them …