[Q] references and objects

14 years ago by Flavius Aspra — view source — reply

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I have a zval *obj holding an object of class B, which I then add to an
array member of another object of class A. Then I create a new instance
*obj2 of class B, to which I want to add a reference to *obj. How would
I best go about it?

So A works as a "pool" of B's, and B's may reference to each other.

Please tell me key functions and macros to use to accomplish
specifically this thing, as the API is quite new to me.

I have thought about setting Z_SET_ISREF_P() manually, but what else
would I need? From my understanding, I'd still need a new zval* for
that. Any other better ways?

Regards,
Flavius

14 years ago by Etienne Kneuss — view source — reply

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Hello,

I have a zval *obj holding an object of class B, which I then add to an
array member of another object of class A. Then I create a new instance
*obj2 of class B, to which I want to add a reference to *obj. How would I
best go about it?

So A works as a "pool" of B's, and B's may reference to each other.

Please tell me key functions and macros to use to accomplish specifically
this thing, as the API is quite new to me.

I have thought about setting Z_SET_ISREF_P() manually, but what else would I
need? From my understanding, I'd still need a new zval* for that. Any other
better ways?

You generally don't want to use references.

Rather, you can keep the same zval* pointer as long as you
increment/decrement its refcount (Z_ADDREF_P/zval_ptr_dtor) so that it
correctly keeps track of how many pointers are pointing to it.

Unless I misunderstood what you're trying to do, it's that easy.

Best,

Regards,
Flavius

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Etienne Kneuss
http://www.colder.ch