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author | Father Chrysostomos <sprout@cpan.org> | 2012-10-16 16:07:19 -0700 |
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committer | Father Chrysostomos <sprout@cpan.org> | 2012-10-16 16:07:19 -0700 |
commit | 0f43fd573c94446b795d95875cb722dd3f61d1fd (patch) | |
tree | 45028462f286a87b798eadf64ae531bee9076d39 /regexp.h | |
parent | 6a97c51d3ccb6044a8e13896ba95a46e330ffa4b (diff) | |
download | perl-0f43fd573c94446b795d95875cb722dd3f61d1fd.tar.gz |
[perl #115260] Stop length($obj) from returning undef
When commit 9f621bb00 made length(undef) return undef, it also made it
return undef for objects with string overloading that returns undef.
But stringifying as undef is a contradiction in terms, and this makes
length inconsistent with defined, which returns true for such objects.
Changing this allows is to simplify pp_length, as we can now call
sv_len_utf8 on the argument unconditionally (except under the bytes
pragma). sv_len_utf8 is now careful not to record caches on magical
or overloaded scalars (any non-PV, in fact).
Note that sv_len is now just a wrapper around SvPV_const, so we use
SvPV_const_nomg, as there is no equivalent sv_len_nomg.
Diffstat (limited to 'regexp.h')
0 files changed, 0 insertions, 0 deletions