What is the difference between throwing an exception and aborting a program?

1. Exception Throwing:

   • Managed error handling mechanism in C++.
   • Allows the program to gracefully exit the current execution context when an exceptional situation occurs.
   • The program transfers control to an exception handler (catch block).
   • Resource cleanup is possible (Stack Unwinding).
   • The program can continue execution after handling the exception.

2. Program Abort:

   • Uncontrolled termination of the program.
   • Occurs when a critical error arises that the program cannot handle correctly (e.g., std::terminate, calling abort()).
   • The program does not perform resource cleanup in the usual order (local object destructors on the stack may not be called).
   • The program does not continue execution.
   • The abort() symbol is defined in <cstdlib>.

Comparison:

Attribute	Exception Throwing	Program Abort
Control	Managed	Unmanaged
Continuation	Possible (after handling)	Impossible
Resource cleanup	Performed (Stack Unwinding)	Usually not performed
Purpose	Handling expected or potentially expected errors	Critical, unhandled errors