Function of C

Function declaration A function must be declared globally in a c program to tell the compiler about the function name, function parameters, and return type. Function call Function can be called from anywhere in the program.
...
Function Aspects.

1. What is C main function?
2. What is function in C with example?
3. Why function is used in C?
4. What are the 4 types of functions in C?

What is C main function?

Every C program has a primary (main) function that must be named main. ... The main function serves as the starting point for program execution. It usually controls program execution by directing the calls to other functions in the program.

What is function in C with example?

A function is a block of statements that performs a specific task. Let's say you are writing a C program and you need to perform a same task in that program more than once. In such case you have two options: a) Use the same set of statements every time you want to perform the task.

Why function is used in C?

C functions are used to avoid rewriting same logic/code again and again in a program. ... We can call functions any number of times in a program and from any place in a program. A large C program can easily be tracked when it is divided into functions.

What are the 4 types of functions in C?

Types of user defined functions in C

• Category I: Functions with no arguments and no return values.
• Category 2: Functions with no arguments and with return values.
• Category 3: Functions with arguments and no return values.
• Category 4: Functions with arguments and with return values.