Skip to main content

Exit( ) function in C programming

By
We have already known that we can jump out of a loop using either the break statement or goto statement. In a similar way, we can jump out of a program by using the library function exit( ). In case, due to some reason, we wish to break out of a program and return to the operating system.
The general syntax is
- - - - -
- - - - -
if (condition) exit (0) ;
- - - - -
- - - - -
The exit( ) function takes an integer value as its argument. Normally zero is used to indicate normal termination and non zero value to indicate termination due to some error or abnormal condition. The use of exit( ) function requires the inclusion of the header file <stdio.h>.

/* Program to demonstrate exit( ) */
#include<stdio.h>
#include<stdlib.h>
main()
{
int choice ;
while(1)
{
printf (“ 1. Create database\n”) ;
printf (“ 2. Insert new record\n”) ;
printf (“ 3. Modify a record\n”) ;
printf (“ 4. Delete a record\n”) ;
printf (“ 5. Display all records\n”) ;
printf (“ 6. Exit\n”) ;
printf (“Enter your choice :” ) ;
scanf (“%d”, &choice) ;
switch (choice)
{
case1:
printf (“:datase created - - -\n\n”) ;
break ;
case2:
printf (“Record inserted - - -\n\n”) ;
break ;
case3:
printf (“Record modified - - -\n\n”) ;
break ;
case4:
printf (“Record deleted - - -\n\n”) ;
break ;
case5:
printf (“Record displayed - - -\n\n”) ;
break ;
case6:
exit(1)
default:
printf (“Wrong choice\n”) ;
} /* end of switch */
} /* end of while */

} /* end of main() */
Labels:

Comments

Post a Comment

Popular posts from this blog

Database Management System(DBMS)

By
Data and Information  Data is an unprocessed raw fact which does  not give complete meaning about any object,person, entity etc. But when various inter-related data arranged in a row, it gives a complete meaning which is referred to as information. For Example: ID Name Address Program 1101 Ram Shrestha Biratnagar BScIT         is information of a specific person. Database Database is a repository(storage) for the organized collection of related information  of data items. It Consist of meaningful arrangement of data, relationship, constraints, schema etc. In modern days we define database as a computerized record-keeping system used to store information and allows users to retrieve and update these information on their request. Some example of databases are telephone directory, data of SLC result, student and employee records etc. Database Management System(DBMS) Database is the softw...
Post a Comment
Read more

What is Java Applets?

By
An applet is a special kind of Java program that is designed to be transmitted over the Internet and automatically executed by a Java-compatible web browser. Furthermore, an applet is downloaded on demand, without further interaction with the user. If the user clicks a link that contains an applet, the applet will be automatically downloaded and run in the browser. Applets are intended to be small programs. They are typically used to display data provided by the server, handle user input, or provide simple functions, such as a loan calculator, that execute locally, rather than on the server. In essence, the applet allows some functionality to be moved from the server to the client.
Post a Comment
Read more

What is manipulator in C++?

By
Answer: Manipulators are special functions that can be included in the I/O statement to alter the format parameters of a stream. Table-2 shows some important manipulator functions that are frequently used. To access these manipulators, the file < iomanip.h > should be included in program.                               Table-2               Manipulators                                                    Equivalent ios function               set...
Post a Comment
Read more