Article View: comp.lang.modula2
Article #1709Re: Standard Modula2
From: Randy Bush
Date: Fri, 25 Jan 1991 17:48
Date: Fri, 25 Jan 1991 17:48
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1079 bytes
Jon.Guthrie@p15.f20.n226.z1.fidonet.org (Jon Guthrie) writes:
> All I want to do is be able to assign any quantity of type ADDRESS to an
> opaque type. I also want to be able to test an opaque type for equality to
> NIL.
Sorry to miss your original point and blather on about uninitialized opaque
detection.
You could get dirty and try the old type transfer hack
OpaqueInstance := OpaqueTypename(address)
and
OpaqueInstance = OpaqueTypename(NIL)
What you really want is the new TRANSLUCENT type extension which is being
proposed by a subgroup of the BSI. :-)
--
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!rice!uw-beaver!milton!ogicse!pdxgate!parsely!percy!qiclab!m2xenix!news From: news@m2xenix.psg.com (Randy Bush) Newsgroups: comp.lang.modula2 Subject: Re: Standard Modula2 Message-ID: <1991Jan25.174802.11700@m2xenix.psg.com> Date: 25 Jan 91 17:48:02 GMT References: <1180.279FE75C@puddle.fidonet.org> Organization: Pacific Systems Group, Portland Oregon US Lines: 18