Re: sizeof gpointer

[Olexiy Avramchenko <ath beast stu cn ua>]

vladimir wrote:

> Hi,
> Great Free software developers!
> I really need help on this one :)
>
> i have:
>
>     void func (gpointer data)
>     {
>         /* code ... */
>     }
>
> How can i get size of data in bytes ? 

The only one way I see is to pass a pointer to a structure like this:

typedef struct __my_fun_struct
{
       guint        size;        /* This's always the first field, 
initialized with data size. */
       gpointer   *data;     /* Or smth else you need */
} MY_FUN_STRUCT;

> if I do sizeof ("text") i will get 5
> if I do sizeof (255) i will get 4
> if I do sizeof (12345678.987654321) i will get 8...
>
> But if i do sizeof (data) i get crazy numbers :( (data is a gpointer) 

Hmm, crazy ? sizeof(gpointer) will return the constant number wich 
depends on your
architecture (== 4 for x86).


Olexiy