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From: anton@mips.complang.tuwien.ac.at (Anton Ertl)
Newsgroups: comp.lang.forth
Subject: Re: bye with exit status
Date: Fri, 08 Nov 2024 08:29:13 GMT
Organization: Institut fuer Computersprachen, Technische Universitaet Wien
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mhx@iae.nl (mhx) writes:
>Same as remarked by minforth: there is a exit-handler chain in
>which the user can plug arbitrary routines.

In Gforth BYE is a deferred word, with the intention that it can be
extended with cleanup actions.

The disadvantage of this approach in connection with the non-0 exit is
that we probably also want to do the same cleanup in those cases.  The
best way to deal with that is probably the "EXIT-CODE !" approach.

Concerning the usual discussion about the name: I find that the system
is left in the error case with an uncaught THROW in script-execution
mode; in that case an exit code of 1 is returned by Gforth, so it's
not sufficient for communicating more than a binary result to the
calling script.  But I have not used non-binary exit codes for
non-Forth programs, either, and I do quite a bit of shell scripting.

In any case, while we have (BYE), I don't use it in application
programs.

- anton
-- 
M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html
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