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Re: [Qemu-devel] QOM: why "klass" used instead of "class" ?


From: malc
Subject: Re: [Qemu-devel] QOM: why "klass" used instead of "class" ?
Date: Thu, 1 Mar 2012 12:17:35 +0400 (MSK)
User-agent: Alpine 2.00 (LNX 1167 2008-08-23)

On Thu, 1 Mar 2012, Andreas F?rber wrote:

> Am 29.02.2012 10:05, schrieb ???:
> > On Wed, Feb 29, 2012 at 10:59:54AM +0400, Michael Tokarev wrote:
> >> On 29.02.2012 09:52, Evgeny Voevodin wrote:
> >>> include/qemu/object.h:
> >> []
> >>>  * void my_device_class_init(ObjectClass *klass, void *class_data)
> >>>  * {
> >>>  *     DeviceClass *dc = DEVICE_CLASS(klass);
> >>>  *     dc->reset = my_device_reset;
> >>>  * }
> >>>  *
> >>>
> >>> Why to use "klass", not "class"?
> >>
> >> Because in C++, "class" is a reserved word.  It is quite typical idiom
> >> to replace class with klass in (public) headers.
> > 
> >   I thought QEMU is written in C, right? Is there anything related to C++?
> 
> A while back there was a patch that added a C++ audio backend, for
> instance. I didn't get around to cleaning the patch up yet though.
> 

The real reason, ofcourse, is that germans are taking over the world,
nothing new here.

> Objective-C is used for the Cocoa frontend.
> 
> At least our headers should work with such C-derived languages.
> 
> clazz is another common alternative if you don't like klass. ;)
> 

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