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Article View: comp.std.c++
Article #3822

Re: Quick questions

#3822
From: Steve Clamage
Date: Tue, 26 Mar 1996 19:13
38 lines
1987 bytes
In article 67891262@sqarc.sq.com, clamage@taumet.eng.sun.com (Steve Clamage) writes:
>clamage@Eng.sun.com (Steve Clamage) wrote:

>>>2) From a previous post on this group, it looks like the standard will
>>>allow one to define conversion operators for pre-existing, source code
>>>untouchable data types.  Yes? No? What will this look like? I have the
>>>May copy of the WP, and don't see any mention of this.
>>
>>I'm not sure I understand what you are asking. If you mean can you define
>>a conversion operator from a user-defined class to a predefined type
>>like int or double, then yes, that has long been part of C++.

>I believe he was referring to something like

>class myclass{};
>operator int(const myclass &arg);
>
>Just like the global equality operators, etc.

That is not allowed. A type conversion function must be a member of a class.

class myclass {
public:
	operator int(); // converts a myclass to an int
	myclass(int); // converts an int to a myclass
};

---
Steve Clamage, stephen.clamage@eng.sun.com




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Path: arc1-ca.pugleaf.net!engnews1.Eng.Sun.COM!taumet!clamage
From: clamage@Eng.sun.com (Steve Clamage)
Newsgroups: comp.std.c++
Subject: Re: Quick questions
Date: 26 Mar 1996 19:13:13 GMT
Organization: Sun Microsystems Inc.
Approved: clamage@eng.sun.com (comp.std.c++)
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