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- Path: engnews1.Eng.Sun.COM!taumet!clamage
- From: Randal Parsons <Randal.Parsons@btal.com.au>
- Newsgroups: comp.std.c++
- Subject: Re: Cleaning auto_ptr copy semantics.
- Date: 6 Feb 1996 15:41:05 GMT
- Organization: Bankers Trust Australia Limited.
- Approved: clamage@eng.sun.com (comp.std.c++)
- Message-ID: <3116BE3B.1B73@btal.com.au>
- References: <01BAF15D.08B8EEE0@dino.int.com>
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- Originator: clamage@taumet
-
- Eugene Lazutkin wrote:
-
- > I didn't find standard equal-operators:
-
- > template<class T>
- > bool operator== ( const auto_ptr<T>& l, const T* r )
- > { return l.get()==r; }
-
- > template<class T>
- > bool operator== ( const T* l, const auto_ptr<T>& r )
- > { return l==r.get(); }
-
- > template<class T>
- > bool operator== ( const auto_ptr<T>& l, const auto_ptr<T>& r )
- > { return l.get()==r.get(); }
-
- > template<class T>
- > bool operator!= ( const auto_ptr<T>& l, const T* r )
- > { return l.get()!=r; }
-
- > template<class T>
- > bool operator!= ( const T* l, const auto_ptr<T>& r )
- > { return l!=r.get(); }
-
- > template<class T>
- > bool operator!= ( const auto_ptr<T>& l, const auto_ptr<T>& r )
- > { return l.get()!=r.get(); }
-
- > It's pretty convinient. It's good if you are going to create a STL
- > container of auto_ptr's. In this case you can use STL's algorithms.
- > Otherwise each programmer should implement this functions manually.
-
-
- I agree. I'd like to treat an auto_ptr similarly to a normal pointer.
- This means that operator== and operator!= need to be defined. I'd
- also like to be able to test if its null or not - using operator!()
- and operator int().
-
- Randal Parsons.
-
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