[Oberon] Oberon-3 (was: Ofront+)

[Jörg]

Oleg

I read in your Oberon-3 description that you support ORD() on several types.
Oberon-07 defines ORD() on CHAR, BOOLEAN and SET.
NW's compiler supports ORD() on more types as well, but this is undocumented.
Generally, ORD is a little dangerous, as ORD returns implementation dependent values, and hence a code using ORD might not be portable.

NW's Oberon-07 compiler (ORP.StandFunc) supports ORD() on
BYTE, BOOLEAN, CHAR, INTEGER, REAL, SET, POINTER, NIL, PROCEDURE

Puristically, it is better to use SYSTEM.VAL(INTEGER, x) instead of ORD(x) as SYSTEM flags the implementation dependency.

It is again (like the semantics of suffix "H") one of the undocumented compiler features NW uses in his own code.
With a strict compiler implementing ORD() according to the Oberon-07 report, you cannot compile Texts.Mod and System.Mod in its current form.

br
Jörg

Am 04.11.20, 10:47 schrieb "Oberon im Auftrag von Oleg N. Cher" <oberon-bounces at lists.inf.ethz.ch im Auftrag von allot at bk.ru>:

    August Karlstrom пишет:

    >>    Oberon-3 (experimental dialect with constant arrays and "proper FOR")
    > 
    > Oberon-3 seems to be so obscure not even Google can find it.

    I may have shown some impudence in taking this name. But I didn't plan 
    to make my own Oberon dialect, I just needed some extensions for my 
    activities. I hope this doesn't cause too much anger among those who 
    respect Prof. Niklaus Wirth and his associates.

    In any case, this development is unlikely to spread too widely and will 
    become very popular. So the name "Oberon-3" can be considered vacant for 
    further achievements.

    Thanks for understanding.


    > 
    > 
    > -- August
    > -- 
    > Oberon at lists.inf.ethz.ch mailing list for ETH Oberon and related systems
    > https://lists.inf.ethz.ch/mailman/listinfo/oberon

    --
       Oleg N. Cher
    --
    Oberon at lists.inf.ethz.ch mailing list for ETH Oberon and related systems
    https://lists.inf.ethz.ch/mailman/listinfo/oberon