Re: <close> and os.exit()

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• Subject: Re: <close> and os.exit()
• From: Lorenzo Donati <lorenzodonatibz@...>
• Date: 2020年5月30日 23:46:08 +0200

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On 30/05/2020 23:23, Sean Conner wrote:

It was thus said that the Great Phil Leblanc once stated:

On Sat, May 30, 2020 at 5:51 PM Lorenzo Donati
<lorenzodonatibz@tiscali.it> wrote:

Funnily enough, os.exit, by default, does less than what C exit function
guarantees, i.e. equivalent to returning from main (C has much uglier
looking alternatives for emergency exit).

This summarizes nicely my original point! :-) The (not so uglier)
emergency exit in C would be _exit().

 The uglier one is abort().
 -spc

The problem seems so compelling that they added some more in C99 (_Exit) and in C11 (quick_exit with corresponding at_quick_exit):

https://en.cppreference.com/w/c/program
and note that only abort causes abnormal termination. Whereas:
exit
_Exit
quick_exit

all terminate the program normally. They only differ on the level of cleanup performed.

Cheers!
-- Lorenzo

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• References:
  • <close> and os.exit(), Phil Leblanc
  • Re: <close> and os.exit(), Javier Guerra Giraldez
  • Re: <close> and os.exit(), Lorenzo Donati
  • Re: <close> and os.exit(), Phil Leblanc
  • Re: <close> and os.exit(), Sean Conner

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