# Questions about rb\_iv\_set/get **URL:** \ **Category:** Ruby\ **Created:** [August 31, 2006, 11:47pm UTC](https://www.ruby-forum.com/t/questions-about-rb-iv-set-get/67136 "2006-08-31T23:47:19Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [August 31, 2006, 11:47pm UTC](https://www.ruby-forum.com/t/questions-about-rb-iv-set-get/67136/1 "2006-08-31T23:47:19Z")
i do have some questions about rb\_iv\_set/get in order to know if i must \*\* OR NOT \*\* free mem allocation relevant to VALUEs passed to rb\_iv\_set ? are only pointers stored ore copies of strings ? ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [August 31, 2006, 11:53pm UTC](https://www.ruby-forum.com/t/questions-about-rb-iv-set-get/67136/2 "2006-08-31T23:53:19Z")
On 8/31/06, Une bévue [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > i do have some questions about rb\_iv\_set/get in order to know if i must > \*\* OR NOT \*\* free mem allocation relevant to VALUEs passed to rb\_iv\_set > ? > > are only pointers stored ore copies of strings ? I’m afraid I can’t help you with your question, but I can help you get more answers. It’s a simple thing, just don’t post with the broken [EXTRA TAGS THAT MAKE YOUR SUBJECT HARD TO READ] subject line. ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [August 31, 2006, 11:59pm UTC](https://www.ruby-forum.com/t/questions-about-rb-iv-set-get/67136/3 "2006-08-31T23:59:19Z")
Une bévue wrote: > i do have some questions about rb\_iv\_set/get in order to know if i must > \*\* OR NOT \*\* free mem allocation relevant to VALUEs passed to rb\_iv\_set > ? > > are only pointers stored ore copies of strings ? Assuming you’re using one of the rb\_str\_new family of functions to create Ruby String objects from C strings, Ruby makes a copy of the C string in Ruby-managed memory. In general Ruby objects are always in Ruby-managed memory unless you’re wrapping one of your own C structures into a Ruby object with Data\_Wrap\_Struct. ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [September 1, 2006, 12:09pm UTC](https://www.ruby-forum.com/t/questions-about-rb-iv-set-get/67136/4 "2006-09-01T12:09:45Z")
pat eyler [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > I can help you get > more answers. It’s a simple thing, just don’t post with the broken > [EXTRA TAGS THAT MAKE YOUR SUBJECT HARD TO READ] subject > line. what are those exactly ? the “[C ext 2 Ruby]” : for my point of view it is to advert people this thread speaks about “C ext 2 Ruby”, not all are interested… or, is it for the “/” of “rb\_iv\_set/get” ??? ---
**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\ **Post date:** [September 1, 2006, 12:27pm UTC](https://www.ruby-forum.com/t/questions-about-rb-iv-set-get/67136/5 "2006-09-01T12:27:54Z")
Timothy H. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Assuming you’re using one of the rb\_str\_new family of functions to > create Ruby String objects from C strings, Ruby makes a copy of the C > string in Ruby-managed memory. In general Ruby objects are always in > Ruby-managed memory unless you’re wrapping one of your own C structures > into a Ruby object with Data\_Wrap\_Struct. ok, fine, thanks, for this precise answer !