Nobull writes:
There is no need for a prototype which also means you don't need to forgo the OO if you don't want to.
sub int_monitor:lvalue {
my $var=\shift;
print "$var\n";
$$var
};
Very neat! I guess that relies on two facts: that @_ contains aliases to the args (which I knew but had forgotten) and that shift returns the first element of the array, rather than a copy of it.
Thanks for your suggestions,
Markus
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