The exit() statement 

The break statement just terminates the execution of a loop or a switch-case construct in which it occurs. The exit() function terminates the execution of the program itself. The exit() is a standard library function and stdlib.h is the header file of exit(). The process.h can also be used instead stdlib.h.

Example:

main()

{             

int i;

                for(i = 1; i < = 100; i ++)

                {             

                               printf("%d\t", i);                               

                               if(i = = 3)

                                                exit(1);

                }

                printf("Out of loop");

}

The exit() requires an integer argument. As the if condition is satisfied exit() would terminate the execution of the program without executing the rest of the statements in the program.