Does anybody know why the following code does NOT die with "Modification of a read-only value attempted"? It puzzles me, I can't find the relevant info in the perldoc . 

for (1) {
    my $ref = \ $_;
    $$ref ++;
}

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( it dies when $ref = \ 1, as expected )

Update: seems to be a perl bug. I'll check out the blead and if it is still there, will report. Thanks everyone!

Update2: Sent patch to https://rt.perl.org/rt3/Public/Bug/Display.html?id=21979. Thanks to ikegami for the place where it should be hacked into.

In reply to ref to read-only alias ... why? by dk

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