Re^4: Pre vs Post Incrementing variables

The fact that f( ++$n, ++$n ) passes an alias to $n, rather than the value resulting from the preincrement, is just another broken behaviour.

Note that this behaviour isn't unique to ++.

    sub f {say "@_"}
    my $n = 1;
    f $n += 2, $n += 2;
    __END__
    5 5
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Re^5: Pre vs Post Incrementing variables by ikegami (Patriarch) on Sep 13, 2010 at 16:33 UTC
grep, values and lvalue subs also return lvalues. substr, pos and keys can also return lvalues.	[reply]