Tom Lane fa2fad3c06 Improve ilist.h's support for deletion of slist elements during iteration. ...

Previously one had to use slist_delete(), implying an additional scan of
the list, making this infrastructure considerably less efficient than
traditional Lists when deletion of element(s) in a long list is needed.
Modify the slist_foreach_modify() macro to support deleting the current
element in O(1) time, by keeping a "prev" pointer in addition to "cur"
and "next".  Although this makes iteration with this macro a bit slower,
no real harm is done, since in any scenario where you're not going to
delete the current list element you might as well just use slist_foreach
instead.  Improve the comments about when to use each macro.

Back-patch to 9.3 so that we'll have consistent semantics in all branches
that provide ilist.h.  Note this is an ABI break for callers of
slist_foreach_modify().

Andres Freund and Tom Lane

2013-07-24 17:42:34 -04:00

..

binaryheap.c

pgindent run for release 9.3

2013-05-29 16:58:43 -04:00

ilist.c

Improve ilist.h's support for deletion of slist elements during iteration.

2013-07-24 17:42:34 -04:00

Makefile

Basic binary heap implementation.

2012-11-29 11:16:59 -05:00

stringinfo.c

Update copyrights for 2013

2013-01-01 17:15:01 -05:00