do while loop in C

The do while loop is a post tested loop. Using the do-while loop, we can repeat the execution of several parts of the statements. The do-while loop is mainly used in the case where we need to execute the loop at least once. The do-while loop is mostly used in menu-driven programs where the termination condition depends upon the end user.

do while loop syntax

The syntax of the C language do-while loop is given below:

Example 1

Output

1. Print Hello 2. Print tutoraspire 3. Exit 1 Hello do you want to enter more? y  1. Print Hello 2. Print tutoraspire 3. Exit 2 tutoraspire do you want to enter more? n 

Flowchart of do while loop

do while example

There is given the simple program of c language do while loop where we are printing the table of 1.

Output

1 2 3 4 5 6 7 8 9 10 

Program to print table for the given number using do while loop

Output

Enter a number: 5 5 10 15 20 25 30 35 40 45 50 

Enter a number: 10 10 20 30 40 50 60 70 80 90 100 

Infinitive do while loop

The do-while loop will run infinite times if we pass any non-zero value as the conditional expression.