Re: CVS commit: src/bin/echo

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

On Wed, Nov 10, 2021 at 17:35:45 +0000, Robert Elz wrote:

> And second, does C99 really promise:
> 	Remove unnecessary call to exit(0); returning from main is equivalent
> 	since C99.
> in the sense that simply falling out of main() is exit(0)?

Surprisingly - yes.

Derek M. Jones in his "The New C Standard.  An Economic and Cultural
Commentary." notes about the relevant passage in the standard text:

  5.1.2.2.3 Program termination

  [...]
  reaching the } that terminates the main function returns a value of 0.

  Commentary
  The standard finally having to bow to sloppy existing practices.

I'd say the previous change to take advantage of this was profoudly
misguided.

-uwe