Exit() Function - Control Structures
What is exit() function in C++ Control Structures?
How to terminate program execution in C++?
Explanation
The exit() function is used to terminate program execution and to return to the operating system. The return code "0" exits a program without any error message, but other codes indicate that the system can handle the error messages.
void exit(int return_code);
Result :
Enter the bit value 0,1::3
In the above example, the control structures exit() function is used to terminate program execution of a "switch" statement if the input value is other than 0 or 1.
Syntax:
void exit(int return_code);
Example :
| #include <iostream.h> #include <stdlib.h> void main() { int j; cout << "Enter the bit value 0,1::" << '\n'; cin >> j; switch( j) { case 0: cout << "Bit value is 0" << '\n'; break; case 1: cout << "Bit value is 1" << '\n'; break; default: exit(0); } } |
Result :
Enter the bit value 0,1::3
In the above example, the control structures exit() function is used to terminate program execution of a "switch" statement if the input value is other than 0 or 1.
