Article View: comp.lang.misc
Article #3364Re: Algol68
From: Dik T. Winter
Date: Sun, 07 Apr 1991 22:51
Date: Sun, 07 Apr 1991 22:51
22 lines
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1444 bytes
In article <809@taniwha.UUCP> paul@taniwha.UUCP (Paul Campbell) writes:
> PS: for those who don't know even the revised report contains ambiguity,
> the most common example is:
>
> union([]int , struct (int a, b, c)) fred = (1,2,3);
>
I know there are even outright errors in the revised report (if I remember
right, somewhere in the transupt section there is a heap declaration that
is not allowed), but as far as I know the above is disallowed. I have to
check because I have no RR here at home, but the CDC Algol 68 compiler
(pretty good and extremely complete) has the following to say:
1 (
2 'UNION'([]'INT','STRUCT'('INT'A,B,C)) FRED = (1,2,3);
3 PRINT(FRED)
4 )
ERRORS DETECTED DURING THE MODE CHECKING
*** 2 F MODE-ERROR IN IDENTITY DECLARATION FOR FRED
which means that there is no coercion that will coerce the right-hand side
to the proper mode.
--
dik t. winter, cwi, amsterdam, nederland
dik@cwi.nl
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!uunet!mcsun!hp4nl!charon!dik From: dik@cwi.nl (Dik T. Winter) Newsgroups: comp.lang.misc,comp.arch Subject: Re: Algol68 Message-ID: <3279@charon.cwi.nl> Date: 7 Apr 91 22:51:31 GMT References: <801@taniwha.UUCP> <4217@zaphod.UUCP> <809@taniwha.UUCP> Sender: news@cwi.nl Followup-To: comp.lang.misc Organization: CWI, Amsterdam Lines: 22