El 19/11/10 14:36, David Nečas escribió:
If you want to nullify a pointer when you release your reference (which
I also find often useful as once you released your reference you may not
be longer sure the object exists at all) you should use a macro for
that, I use one defined approximately
On Fri, Nov 19, 2010 at 01:21:44PM +, N James Bridge wrote:
> Thanks for all your contributions. I have now found G_IS_OBJECT(), which
> is obviously the way to test whether the memory has been released or
> not.
It obviously ISN'T.
If the memory was released then the argument is no longer a
On Thu, 2010-11-18 at 22:11 +, N James Bridge wrote:
> It seems that g_object_unref (ptr) doesn't set ptr to NULL when it frees
> the allocated memory. Have I got something wrong here? Do I have to do
> it explicitly?
>
Thanks for all your contributions. I have now found G_IS_OBJECT(), which
i
On Thu, 18 Nov 2010 22:11:45 +
N James Bridge wrote:
> It seems that g_object_unref (ptr) doesn't set ptr to NULL when it
> frees the allocated memory. Have I got something wrong here? Do I
> have to do it explicitly?
You can do it explicitely by using
g_object_add_weak_pointer (your_obje
Nader Morshed,
On Thu, Nov 18, 2010 at 8:21 PM, Nader Morshed wrote:
>
> #define G_OBJECT_UNREF_AND_NULLIFY(ptr) { \
> g_object_unref(ptr); \
> (ptr) = NULL; \
> }
>
Not a good idea: the object may still hold a reference, and nullifying
the pointer would probably nullify the only w
N James Bridge wrote:
It seems that g_object_unref (ptr) doesn't set ptr to NULL when it frees
the allocated memory. Have I got something wrong here? Do I have to do
it explicitly?
The official documentation[1] does not mention anything about setting
the pointer to NULL. Did you read something
As it only takes a pointer, and not a pointer to a pointer (&ptr), there's no
way for g_object_unref to set the original pointer variable to NULL, you'd have
to nullify it yourself, either through g_pointer_nullify or just ptr = NULL. If
you want you can wrap the two in a macro, but as far as I
