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Postings from July 2001
|> Well, there are tradeoffs to his proposal, and they should at least be
|> mentioned.....
Sorry for the self-followup, but one overridingly important issue I forgot
to mention is that the semantics of marking an HV "readonly" can be quite
different than the marking of its individual values.
After
my $ref = \$hash{SOMEKEY};
somehow_mark_readonly %hash;
it is clear that
$hash{SOMEKEY} = 3;
should not be allowed, but what about
$$ref = 3;
?
I can imagine convincing arguments for semantics that do and don't
allow updates via the reference.
Jeffrey
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