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- Path: engnews1.Eng.Sun.COM!taumet!clamage
- From: James Kanze US/ESC 60/3/141 #40763 <kanze@lts.sel.alcatel.de>
- Newsgroups: comp.std.c++
- Subject: Re: Placement delete suggestion Keywords: delete placement
- Date: 26 Mar 1996 16:23:05 GMT
- Organization: ?
- Approved: clamage@eng.sun.com (comp.std.c++)
- Message-ID: <9603261124.AA22276@lts.sel.alcatel.de>
- References: <4j4ec5$d41@fsgi01.fnal.gov>
- NNTP-Posting-Host: taumet.eng.sun.com
- In-Reply-To: b91926@fsgi01.fnal.gov's message of 25 Mar 1996 10:05:32 PST
- Content-Length: 1397
- X-Lines: 31
- Originator: clamage@taumet
-
- In article <4j4ec5$d41@fsgi01.fnal.gov> b91926@fsgi01.fnal.gov (David
- Sachs) writes:
-
- |> The lack of a placement delete expression form, corresponding to
- |> the placment new form, has been a topic for serious discussion in
- |> this group. The obvious problem with placement delete is that
- |> any non-awkward form could be ambiguous, though examples that
- |> would show such ambguity are probably infrequent.
-
- |> In view of this, it might be reasonable if the standards committee
- |> bit the bullet and declare that such ambiguous forms should be
- |> treated as placement deletes. That should be anything of the form:
-
- |> delete leftparenthesis expressionlist rightparenthesis expression
-
- |> delete[] leftparenthesis expressionlist rightparenthesis expression
-
- |> Admitedly, this would probably break some existing code, but the
- |> broken expressions can be fixed by adding parentheses.
-
- Is the expression: delete (*pf)( p ) placement delete or not? (The
- variable pf has type `T* (*)( T* )', and p type T*.) If not, why not?
- If so, how can I remove the ambiguity (by adding parentheses or
- otherwise)?
-
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- James Kanze Tel.: (+33) 88 14 49 00 email: kanze@gabi-soft.fr
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