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Postings from July 2016
* Dave Mitchell <davem@iabyn.com> [2016-06-30 13:48]:
> The problem with this in try/eval (exiting normally or via an
> exception) is that it can delay some SVs getting freed until
> *after* $@ has been set. If that freeing calls a destructor which
> happens to set $@, then that overwrites the "real" value of $@.
So if I understand this correctly, it means the full idiom for safe eval
on current and older perls must be as follows:
eval { { local $@; ... } () } # void context, pre-5.26
eval { my $ret = do { local $@; ... } $ret } # scalar context, pre-5.14
(With list context essentially like scalar context.)
Correct?
Rewriting your tests accordingly does makes them pass, at least.
Regards,
--
Aristotle Pagaltzis // <http://plasmasturm.org/>
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