in a more accurate way:
#include <stdio.h>
long __auto_increment = 0;
typedef struct {
long *addr;
void *value;
} Object;
Object ObjectNew(void *value) {
Object obj;
long i = __auto_increment++;
obj.addr = &i;
obj.value = value;
return obj;
}
int main (void) {
Object obj;
Object *obj_1;
Object *obj_2;
int i = 0;
char *value = "hello world!";
while (++i < 5) {
obj = ObjectNew(value);
obj_1 = &obj;
obj_2 = obj_1;
printf("obj_1.addr = %#x, obj_1.value = %s \n",
obj_1->addr, obj_1->value);
printf("obj_2.addr = %lo, obj_2.value = %s \n",
*(long *)obj_2->addr, obj_2->value);
}
return 0;
}
On Sat, Aug 2, 2008 at 9:50 AM, mm w <[EMAIL PROTECTED]> wrote:
> Hi I'm sorry, it's not a confusion, it's only a bad knowledge of C, and
> "pointers" are not understood, NS and what about CF or every-prefix in the
> world
> of frameworks gtk_object ... kobject ...
>
> #include <stdio.h>
>
> long __auto_increment = 0;
>
> typedef struct {
> long *addr;
> void *value;
> } Object;
>
> Object ObjectNew(void *value) {
> Object obj;
> long i = __auto_increment++;
>
> obj.addr = &i;
> obj.value = value;
>
> return obj;
> }
>
> int main (void) {
> Object obj;
> Object *obj_1;
> Object *obj_2;
>
> char *value = "hello world!";
> obj = ObjectNew(value);
>
> obj_1 = &obj;
> obj_2 = obj_1;
>
> printf("obj_1.addr = %x, obj_1.value = %s \n",
> obj_1->addr, obj_1->value);
>
> printf("obj_2.addr = %x, obj_2.value = %s \n",
> obj_1->addr, obj_1->value);
>
> return 0;
> }
>
> On Sat, Aug 2, 2008 at 12:05 AM, Negm-Awad Amin <[EMAIL PROTECTED]> wrote:
>> Hi,
>>
>> Am Fr,01.08.2008 um 22:07 schrieb Giulio Cesare Solaroli:
>>
>>> On Fri, Aug 1, 2008 at 10:01 PM, Clark Cox <[EMAIL PROTECTED]> wrote:
>>>>
>>>> On Fri, Aug 1, 2008 at 12:38 PM, Arthur Coleman <[EMAIL PROTECTED]>
>>>> wrote:
>>>>>
>>>>> I hate to be dense, but what about C structs like NSRect? There are
>>>>> initialized on the stack aren't they?
>>>>
>>>> They're C structs, they aren't Objective-C objects.
>>>
>>> That's very true, but the common NS prefix used by both full obj-c
>>> classes and simple C structures may lead to some confusion, mainly for
>>> someone learning obj-c and Cocoa.
>>
>> yup, sometimes people are confused about the NS-prefix. But NS means
>> NextStep, so refers to the framework *not* to the type. It is no good idea
>> to use hungarian notation in objective-c.
>>
>> Amin
>>
>>>
>>>
>>> Giulio Cesare
>>> _______________________________________________
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>>
>> Amin Negm-Awad
>> [EMAIL PROTECTED]
>>
>>
>>
>>
>> _______________________________________________
>>
>> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
>>
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>
>
>
> --
> -mmw
>
--
-mmw
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