The readpipe function is questionable in other ways:

$ perl -e'print prototype("CORE::readpipe")'
Can't find an opnumber for "readpipe" at -e line 1.
$

[download]

Source diving shows that backticks and iirc readpipe, too, are implemented by do_backticks.

After Compline,
Zaxo

In reply to Re: Backticked commands and the readpipe blues by Zaxo
in thread Backticked commands and the readpipe blues by grinder

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