Re: Why can't PODs have constructors?

From:
"BobR" <removeBadBobR@worldnet.att.net>
Newsgroups:
comp.lang.c++
Date:
Fri, 27 Jul 2007 19:57:42 GMT
Message-ID:
<W6sqi.6230$ax1.412@bgtnsc05-news.ops.worldnet.att.net>
JohnQ <johnqREMOVETHISprogrammer@yahoo.com> wrote in message...

"BobR" wrote in message...

struct MyRect : public virtual RECT{


Why the virtual inheritance?


Oops.
I was cleaning out my 'TestBench' program, and removed the wrong code
(had about 5 versions).
Here is the one I meant to post:

struct Rect : RECT{
    Rect( long x1 = 0, long y1 = 0, long x2 = 10, long y2 = 10 ){
          left = x1; bottom = y1; right = x2; top = y2;}
    };

{ // main() or ?
using std::cout // for NG post
Rect rect( 10, 12, 22, 42 );
RECT rect1( rect );
RECT rect1a( Rect( 7, 14, 27, 34 ) );
Rect rect2;
cout<<" Rect rect.bottom="<< rect.bottom <<'\n'
     <<" RECT rect1.bottom="<< rect1.bottom <<'\n'
     <<" RECT rect1a.bottom="<< rect1a.bottom <<'\n'
     <<" Rect rect2.top="<< rect2.top <<'\n'
     <<" sizeof(rect)="<<sizeof(rect)<<'\n'
     <<" sizeof(rect1)="<<sizeof(rect1)<<std::endl;
}
/* - output -
 Rect rect.bottom=12
 RECT rect1.bottom=12
 RECT rect1a.bottom=14
 Rect rect2.top=10
 sizeof(rect)=16
 sizeof(rect1)=16
*/

Sorry about that.

[ I don't remember what I was 'testing' with the 'virtual inherit',
something to do with "vector<RECT*> vRec(10, new MyRect(1,2,3,4));". ]
--
Bob R
POVrookie

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