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No more expressive than exception objects (Score:1)
I would rate it bad because it is unexpected. It is worth to notice that in the general case your output variables is undefined if the function throws an exception.
If you want to return a value in an exceptionish way I would prefere using an Exception object[0] or in perl:
sub foo {
die { value => 42, Exception => 'Beeep' }
}
my $val;
eval { foo() };
if ($@) {
$val = $@->{value};
}
0) No I don't know if C# allows that. Some other languages seems to do.
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