Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.forth > #19794

Re: Locals with a broader scope

Show all headers | View raw

"Elizabeth D. Rather" <erather@forth.com> writes:
>Truly, I don't see the point of all this paranoia about reentrancy, 
>particularly in systems without a multitasker. VARIABLE was *designed* 
>for things that would be used in multiple definitions. I remember the 
>horror of (*gasp*) global variables back in the 1960's in Fortran. But, 
>frankly, in 30+ years of programming in Forth I never found them a 
>problem. I think this is all about mythical dragons.

I have had problems with variables, and even without multitasking.

However, I think that the OP wanted to make maximum use of the little
RAM he had by reusing it when the not-quite-locals are dead and don't
need any RAM.  The stack-based regime of locals does this quite well,
he just does not want to be restricted to use them only within single
colon definitions.

>Of course, most of the time I don't like local variables anyway, let 
>along "neighborhood" variables.

Strike!

- anton
-- 
M. Anton Ertl  http://www.complang.tuwien.ac.at/anton/home.html
comp.lang.forth FAQs: http://www.complang.tuwien.ac.at/forth/faq/toc.html
     New standard: http://www.forth200x.org/forth200x.html
   EuroForth 2013: http://www.euroforth.org/ef13/

Back to comp.lang.forth | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Locals with a broader scope Brad Eckert <hwfwguy@gmail.com> - 2013-02-16 10:40 -0800
  Re: Locals with a broader scope Brad Eckert <hwfwguy@gmail.com> - 2013-02-16 13:50 -0800
    Re: Locals with a broader scope anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-02-17 13:24 +0000
      Re: Locals with a broader scope Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-02-17 09:47 -0600
        Re: Locals with a broader scope anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-02-18 13:40 +0000
    Re: Locals with a broader scope "Elizabeth D. Rather" <erather@forth.com> - 2013-02-17 21:34 -1000
      Re: Locals with a broader scope Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-02-18 03:29 -0600
        Re: Locals with a broader scope Bernd Paysan <bernd.paysan@gmx.de> - 2013-02-18 17:29 +0100
      Re: Locals with a broader scope albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-02-18 12:05 +0000
      Re: Locals with a broader scope anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-02-18 14:39 +0000
        Re: Locals with a broader scope Brad Eckert <hwfwguy@gmail.com> - 2013-02-18 09:04 -0800
          Re: Locals with a broader scope Percy <percival.andrews@gmail.com> - 2013-02-19 02:33 -0800
            Re: Locals with a broader scope anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-02-19 11:25 +0000
              Re: Locals with a broader scope Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-02-19 11:42 -0600
  Re: Locals with a broader scope Bernd Paysan <bernd.paysan@gmx.de> - 2013-02-17 02:00 +0100
  Re: Locals with a broader scope Doug Hoffman <glidedog@gmail.com> - 2013-02-17 16:51 -0500
    Re: Locals with a broader scope "A. K." <akk@nospam.org> - 2013-02-18 07:58 +0100
  Re: Locals with a broader scope Brad Eckert <hwfwguy@gmail.com> - 2013-02-19 09:20 -0800
  Re: Locals with a broader scope Brad Eckert <hwfwguy@gmail.com> - 2013-02-22 08:27 -0800

csiph-web