What are the differences between
void quick_exit( int exit_code )
void exit( int exit_code )
exit ensures that stream buffers are flushed, closed, etc. Such behavior for
quick_exit is not specified by the standard.
With these you can define two ways of quitting an application, one that lets you terminates with full cleaning (made by functions registered with
atexit), and the other to let applications terminate more quickly without cleaning too much things (calls to functions registered with