[erlang-questions] merging gb_trees
Joel Reymont
joelr1@REDACTED
Fri Oct 21 00:56:27 CEST 2011
Forgot to mention a constraint…
Some keys may exist in one tree but not in the other.
The resulting tree should have all the keys and the values should be copied if a key does not exist in one of the tree and summed up otherwise.
I actually have multiple trees to merge into a single one but I figure I could repeat the operation two trees at a time.
On Oct 20, 2011, at 11:43 PM, Joel Reymont wrote:
> Suppose I have 2 gb_trees T1 and T2.
>
> I want to merge them such that all the values with equal keys are summed up in the resulting tree.
>
> What is the most elegant way to accomplish this?
--------------------------------------------------------------------------
- for hire: mac osx device driver ninja, kernel extensions and usb drivers
---------------------+------------+---------------------------------------
http://wagerlabs.com | @wagerlabs | http://www.linkedin.com/in/joelreymont
---------------------+------------+---------------------------------------
More information about the erlang-questions
mailing list