Rb tree node recycling patch

Paolo Carlini paolo.carlini@oracle.com
Wed Jan 8 13:34:00 GMT 2014


Hi,

On 12/27/2013 07:30 PM, François Dumont wrote:
> Note that this patch contains also a cleanup of a useless template 
> parameter _Is_pod_comparator on _Rb_tree_impl.
The useless parameter is a remnant of an attempt at exploiting the EBO 
for _Rb_tree_impl. At some point Benjamin got a patch from a contributor 
but then had to quickly revert it just in time for the ABI freeze 
because it didn't work. Evrything is recorded in the mailing list. 
Anyway, whatever we do now (more exactly, post 4.9) let's make sure we 
don't break the ABI inadvertently, or, if we actually decide do that, we 
should reconsider the EBO.

About the node recycling idea itself, we got a closely related Bugzilla. 
Is it *exactly* the same issue, or not? Please double check.

Paolo.



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