C++

 What Is The Difference Between Exit And Abort?

Answer :

exit does a graceful process termination, it calls the destructors for all the constructed objects, with abort they are not called.

exit() terminates the process normally.

exit() performs following operations.
* Flushes unwritten buffered data.
* Closes all open files.
* Removes temporary files.
* Returns an integer exit status to the operating system.

abort() may not close files that are open. It may also not delete temporary files and may not flush stream buffer. Also, it does not call functions registered with atexit().

This function actually terminates the process by raising a SIGABRT signal, and your program can include a handler to intercept this signal .

Assert()

void assert( int expression );

If expression evaluates to 0 (false), then the expression, sourcecode filename, and line number are sent to the standard error, and then abort() function is called. If the identifier NDEBUG (“no debug”) is defined with #define NDEBUG then the macro assert does nothing.