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- Path: fido.asd.sgi.com!austern
- From: esap@cs.tut.fi (Pulkkinen Esa)
- Newsgroups: comp.std.c++
- Subject: Re: sample auto_ptr template
- Date: 15 Apr 1996 09:36:01 PDT
- Organization: Tampere University of Technology
- Approved: austern@isolde.mti.sgi.com
- Message-ID: <4kop9s$d8l@peippo.cs.tut.fi>
- References: <009A0A5CE1159CC0.49802F14@ittpub.nl> <gregorDpoGM2.Hw2@netcom.com> <4kjcvb$ghf@ugress.uib.no> <KANZE.96Apr12130738@gabi.gabi-soft.fr>
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- X-Original-Date: 13 Apr 1996 17:46:36 GMT
- NNTP-Posting-User: esap
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- Originator: austern@isolde.mti.sgi.com
-
- >In article <4kjcvb$ghf@ugress.uib.no> boukanov@sentef1.fi.uib.no (Igor
- >Boukanov) writes:
- >|> auto_ptr<T>(const auto_ptr<T>&) to auto_ptr<T>(auto_ptr<T>&)
- >|> and
- >|> auto_ptr<T>& operator=(const auto_ptr<T>&) to
- >|> auto_ptr<T>& operator=(auto_ptr<T>&)
-
- IMHO, copy constructors for auto_ptr must be either private or
- have non-const parameters.
-
- In article <KANZE.96Apr12130738@gabi.gabi-soft.fr>,
- J. Kanze <kanze@gabi-soft.fr> wrote:
- >We've been through all this before. That was the original version.
- >Regretfully, makes it impossible to return an auto_ptr from a function.
- >And one of the more frequent uses of auto_ptr involves returning them
- >from functions.
-
- I can't really understand, why it should be possible to return
- auto_ptr's from functions - why not define a distinct pointer type
- for that purpose - and define conversion from auto_ptr to
- that pointer type for returning it from functions. That is -
- to return an auto_ptr from functions, you write:
-
- taligent_ptr<T> f()
- { auto_ptr<T> p=new T;
- return p;
- }
-
- (I have no idea if the 'taligent_ptr' is suitable for this kind of thing,
- but its name is as good as any for this example .... )
- --
- Esa Pulkkinen | C++ programmers do it virtually
- E-Mail: esap@cs.tut.fi | everywhere with a class, resulting
- WWW : http://www.cs.tut.fi/~esap/ | in multiple inheritance.
- ---
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