10 Jul
2008
10 Jul
'08
2:24 p.m.
Sorry folks!
But I'mtoo stupid. I have a struct, which contains a pointer to itself as an
element. How to write this. I once knew, but now I fail. It's a shame! :-(
Kindest regards
Julien
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
10 Jul
10 Jul
2:45 p.m.
On Thursday 10 July 2008, Julien Claassen wrote:
Sorry folks!
But I'mtoo stupid. I have a struct, which contains a pointer to itself
as an element. How to write this. I once knew, but now I fail. It's a
shame! :-( Kindest regards
Julien
In C or C++?
C:
struct Foo {
struct Foo *next;
};
C++:
struct Foo {
Foo *next;
};
Regards,
Flo
--
Palimm Palimm!
http://tapas.affenbande.org
2:52 p.m.
Thanks!
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
2:47 p.m.
But I'mtoo stupid. I have a struct, which
contains a pointer to itself as an
element. How to write this. I once knew, but now I fail. It's a shame! :-(
In C++ Land we do it like this:
struct StupidSolution {
int i;
struct StupidSolution *self;
StupidSolution(int num) : i(num), self(this) { }
};
But maybe you really wanted to do a tree:
struct TreeNode {
int i;
struct TreeNode *parent, *left, *right;
TreeNode(int num, TreeNode *par=NULL) : i(num), parent(par), left(0),
right(0) { }
};
And if you doing it old fashioned in C:
struct StupidSolution {
int i;
struct StupidSolution *self;
};
struct StupidSolution *sol=(struct StupidSolution)malloc(sizeof(struct
StupidSolution));
sol->i=3;
sol->self=sol;
--
---> Dirk Jagdmann
----> http://cubic.org/~doj
-----> http://llg.cubic.org
2:56 p.m.
On Thu, Jul 10, 2008 at 06:24:29PM +0200, Julien Claassen wrote:
But I'mtoo stupid. I have a struct, which
contains a pointer to itself as an
element. How to write this. I once knew, but now I fail. It's a shame! :-(
This works for me:
#include <stdio.h>
struct XXX
{
int a;
int b;
struct XXX *p;
};
int main (void)
{
struct XXX X;
X.p = &X;
printf ("%p, %p\n", &X, X.p);
return 0;
}
--
FA
Laboratorio di Acustica ed Elettroacustica
Parma, Italia
O tu, che porte, correndo si ?
E guerra e morte !
3:07 p.m.
On Thu, 2008-07-10 at 18:24 +0200, Julien Claassen wrote:
Sorry folks!
But I'mtoo stupid. I have a struct, which contains a pointer to itself as an
element. How to write this. I once knew, but now I fail. It's a shame! :-(
Either
typedef struct foo foo_t;
struct foo {
foo_t* pointer;
};
or
struct foo {
struct foo* pointer;
};
--ll
6072
days inactive
6073
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linux-audio-dev@lists.linuxaudio.org
6 comments
6 participants
participants (6)
-
Dirk Jagdmann -
Florian Schmidt -
Fons Adriaensen -
Jens M Andreasen -
Julien Claassen -
Lars Luthman