Document why it's a bad plan to move the backreferences array from
authorNicholas Clark <nick@ccl4.org>
Fri, 30 Dec 2005 16:53:39 +0000 (16:53 +0000)
committerNicholas Clark <nick@ccl4.org>
Fri, 30 Dec 2005 16:53:39 +0000 (16:53 +0000)
commit5b285ea4a6ead2df7b4a0a11b0aff949429e0500
tree2c57c3e9f4ca7311811702b602feb05f3d1ef697
parentd7cbc7b5c258cffaf362ecafb36c5dfc354c1ffa
Document why it's a bad plan to move the backreferences array from
the magic structure to the hv_aux structure during backreference
deletion. Add an optimisation for an empty backreference array.

p4raw-id: //depot/perl@26542
hv.c
sv.c