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- From: vandevod@cs.rpi.edu (David Vandevoorde)
- Newsgroups: comp.std.c++
- Subject: Re: Referencing pointers after delete
- Date: 04 Apr 1996 13:20:08 PST
- Organization: RPI Computer Science
- Approved: austern@isolde.mti.sgi.com
- Message-ID: <xsou3yzzqg7.fsf@juicer.cs.rpi.edu>
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- X-Original-Date: 04 Apr 1996 15:26:00 -0500
- In-Reply-To: thp@cs.ucr.edu's message of 01 Apr 1996 17:03:37 PST
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- Originator: austern@isolde.mti.sgi.com
-
- >>>>> "TP" == Tom Payne <thp@cs.ucr.edu> writes:
- [...]
- TP> This is probably the hub of our difference: I have difficulty
- TP> imagining a reasonable architecture that does something other than
- TP> ignoring or trapping the reading of invalid pointers. (Granted,
- TP> "reasonable" is in the eye of the beholder.)
-
- On the contrary, I think it could be a quite common thing. Many
- architectures memory-map I/O and it's perfectly imaginible that:
-
- int x = *p;
-
- where p is an invalid pointer triggers some I/O operation because
- p happens to point into such an ``I/O area''. The standard cannot
- reasonably be expected to say what can or cannot happen in those
- cirucmstances.
-
- Daveed
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