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Article #3364

Re: Algol68

#3364
From: Dik T. Winter
Date: Sun, 07 Apr 1991 22:51
22 lines
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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>
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