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  • Re: 0 vs. translate-none

    From anton@anton@mips.complang.tuwien.ac.at (Anton Ertl) to comp.lang.forth on Mon Sep 29 16:27:53 2025
    From Newsgroup: comp.lang.forth

    albert@spenarnc.xs4all.nl writes:
    In article <2025Sep29.075402@mips.complang.tuwien.ac.at>,
    For Algol 60 (not sure about Algol 68), they could not even agree on a >>machine-readable representation of the programs. I.e., you cannot
    write a file containing any Algol 60 program that is guaranteed to be >>compiled by all Algol 60 compilers; the behaviour of the program is
    only when you have compiled it and can run it.

    The character set wherein the program is represented is irrelevant.
    I cannot compile a EBCDIC FORTRAN program in my linux system.

    EBCDIC did not exist when Fortran was designed and released, so your
    example demnstrates that different encodings are not the problem. If
    you get a Fortran program encoded in EBCDIC, you can convert it to
    ASCII with a command like "recode ebcdic..ascii". The important thing
    is that you can then compile this program with a Fortran compiler on
    Linux.

    By contrast, even if there was an Algol 60 compiler on Linux, and if
    the enoding used by that compiler is the same as that of the source
    programs you have available (do you have any?), the Algol 60
    specification would not guarantee that you can compile it with that
    compiler, because the specification does not specify the
    machine-readable representation of programs at all.

    In Pascal, the program can access a pointer after DELETEing its
    contants, and you can also DELETE the pointer several times, all not >>defined by the language and typically resulting in programs behaving
    other than intended. The same kinds of execution sequences are often >>mentioned as vulnerabilities in C programs (use after free, double
    free); this only is not reported widely for Pascal programs because
    there are no Pascal programs in wide use.

    That was an oversight, not intended.

    Whether intended, oversight, or something else, this property of
    Pascal is counterexample for your claim.

    Prolog does not have this problem of Pascal, and yet it's standard
    does not specify everything; it even has undefined behaviour.

    - 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: https://forth-standard.org/
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  • From Hans Bezemer@the.beez.speaks@gmail.com to comp.lang.forth on Tue Sep 30 18:15:42 2025
    From Newsgroup: comp.lang.forth

    On 28-09-2025 16:42, dxf wrote:
    On 27/09/2025 1:09 am, Hans Bezemer wrote:
    ...
    Show some nice ASCII art. Just a suggestion.

    Because Standard Forth is crazy-making? I just finished an Intel-HEX
    file reformatter to work-around someone else's poor decision. That at
    least was do-able.


    If you want to annoy some ANS standard authors, just because you can, do
    it with a bit of pizzazz ;-)

    HB
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  • From dxf@dxforth@gmail.com to comp.lang.forth on Wed Oct 1 14:10:38 2025
    From Newsgroup: comp.lang.forth

    On 1/10/2025 2:15 am, Hans Bezemer wrote:
    On 28-09-2025 16:42, dxf wrote:
    On 27/09/2025 1:09 am, Hans Bezemer wrote:
    ...
    Show some nice ASCII art. Just a suggestion.

    Because Standard Forth is crazy-making?  I just finished an Intel-HEX
    file reformatter to work-around someone else's poor decision.  That at
    least was do-able.


    If you want to annoy some ANS standard authors, just because you can, do it with a bit of pizzazz ;-)

    HB

    Just tell them that they were never really ANS followers. Works every
    time because it's so obvious :-)

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  • From Hans Bezemer@the.beez.speaks@gmail.com to comp.lang.forth on Thu Oct 2 15:48:03 2025
    From Newsgroup: comp.lang.forth

    On 01-10-2025 06:10, dxf wrote:
    On 1/10/2025 2:15 am, Hans Bezemer wrote:
    On 28-09-2025 16:42, dxf wrote:
    On 27/09/2025 1:09 am, Hans Bezemer wrote:
    ...
    Show some nice ASCII art. Just a suggestion.

    Because Standard Forth is crazy-making?  I just finished an Intel-HEX
    file reformatter to work-around someone else's poor decision.  That at
    least was do-able.


    If you want to annoy some ANS standard authors, just because you can, do it with a bit of pizzazz ;-)

    HB

    Just tell them that they were never really ANS followers. Works every
    time because it's so obvious :-)


    Never thought of that - but it's so true. You're such a wise man. ;-)

    Hans Bezemer

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