For 5.12: saner behaviour for `length`
authorNicholas Clark <nick@ccl4.org>
Sat, 12 Jan 2008 22:20:39 +0000 (22:20 +0000)
committerNicholas Clark <nick@ccl4.org>
Sat, 12 Jan 2008 22:20:39 +0000 (22:20 +0000)
commit9f621bb00a11fa3741b155ff668ae147fed95cf0
tree7b5b39f40f93859c7938b76462590a705d7a4147
parentd06445298904613950b0410a2f3b1125ab58c7b5
For 5.12: saner behaviour for `length`
(Make C<length undef> return undef).
Patch mostly by Rafael, with some fine tuning by me.

p4raw-id: //depot/perl@32969
pod/perlfunc.pod
pp.c
sv.c
sv.h
t/lib/warnings/9uninit
t/lib/warnings/mg
t/op/length.t
t/op/vec.t