Functions

Question 1

What is Function?

Answer 1

Functions in C are the basic building blocks of a C program. A function is a set of statements enclosed within curly brackets ({}) that take inputs, do the computation, and provide the resultant output. You can call a function multiple times, thereby allowing reusability and modularity in C programming.

Question 2

How to Declare a Function?

Answer 2

1. function type { for ex. int,void}
2. function name
3. function parameters {ex. int a,int b}

Question 3

Function Definition?

Answer 3

A Function definition. consists of function header and function body

1.function type
2.function name
3.function parameters.
4.Declaring Local Variables.
5.Function statements.
6.Return Statements

Question 4

What are the components of Function Header?

Answer 4

1. Return type
2. Function Name.
3. Function Parameters.

Question 5

What are the components of Function body?

Answer 5

1.Local Variables.
2.Function Statements.
3.Return Statements

Question 6

Note

Answer 6

1.When a function reaches its return statements, the control is transferred
back to the calling program.
2. In the absence of return statement, the closing brace acts as a void
return.
3. A local variable is a variable that is defined in the function and cannot
be used outside the function.

Question 7

how to call a functions?

Answer 7

By function name(function parameters);