Dan Walters-2 wrote:
Dear all,
I have been working on a proposal for a useful utility for managing non hierarchal, bi-directional relationships between objects and as a useful tool in object composition.
This utility is in the form of a type of templated smart pointer that can connect to one single other pointer and manage the relationship between the two pointers.
This paired_ptr object is intended for use as a member of (or at least contained within) a user defined object and is conceptualized from the needs of object composition.
Prototype source code, a usage example and brief documentation is available here:
http://www.boostpro.com/vault/index.php?action=downloadfile&filename=paired_ptr.zip&directory=&
Doumentation only is available here: (this is a google doc and is continually being updated)
http://docs.google.com/View?id=dc33pnfx_442s22z7d6
I am posting here in the hope it will generate suitable interest that it may be worth developing as a full library for submission.
Best wishes,
Dan _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
Hi, I don't know why I don't like the name paired_ptr, one_to_one_ptr could be an alternative. I will see this class as one more in a Association library that could include other kind of associations, as one_to_many, many_to_one, many_to_many,... class CCat CDog rex; CCat kitty; As no one side of the association is more important than the other maybe a non-member function could be more adequate. The connection between two objects can be established as so connect(rex.paired_cat, kitty.paired_dog); //connections can be severed at either end disconnect(kitty.paired_dog); have you think about adding a mixin paired_ptr that can be used as base class and as such don't need to manage with the owner initialization? class CCat; class CDog; class CDog : public one_to_one_ptr<CDog, CCat> { ... }; class CCat : public one_to_one_ptr<CCat,CDog> { ... }; Now the connection can be done directly connect(rex, kitty); one_to_one_ptr<T,U> could define a method to get the pointed U, get<U> that can be used like get<CCat>(rex); or rex.get<CCat>(); Best, Vicente -- View this message in context: http://old.nabble.com/-paired-ptr--Proposing-a-new-smart-pointer-object-for-... Sent from the Boost - Dev mailing list archive at Nabble.com.