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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 …

  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.

  3. User defined functions, user defined types, and enhanced …

    Jan 16, 2025 · User defined functions (UDFs) can now include behavior functions with side effects, such as Set, Collect, Reset, and Notify. Declarative is always best, so use this facility …

  4. 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 …

  5. 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.

  6. User-Defined Functions in C Language - Intellipaat

    Oct 29, 2025 · The term ‘User-defined functions’ is another term for functions that are created and defined by the user, and are useful for writing efficient, clean, modular, and reusable code.

  7. 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 …

  8. User-Defined Function in C – TheLinuxCode

    May 26, 2025 · A user-defined function is a block of code you create to perform a specific task. Unlike built-in functions that come with the C standard library (like printf(), scanf(), or strlen()), …

  9. User Defined Functions in C: Types, Syntax, and Examples - upGrad

    Apr 7, 2025 · A user defined function in C is a function created by the programmer to perform a specific task. Unlike standard functions such as printf () or scanf (), which are predefined in C's …

  10. User defined Functions in C - Studytonight

    Sep 17, 2024 · There can be 4 different types of user-defined functions, they are: Below, we will discuss about all these types, along with program examples. 1. Function with no arguments …