in reply to Re: Distinguishing a filehandle for an in-memory string
in thread Distinguishing a filehandle for an in-memory string

I noticed this, but I saw somewhere in a comment or in some piece of documentation that it says something like "currently returns -1", which made me think that that is not a reliable way to check. But maybe it's as reliable as checking for "scalar" in the list of IO layers?
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Re^3: Distinguishing a filehandle for an in-memory string
by ikegami (Patriarch) on May 19, 2018 at 01:10 UTC

    Checking for an in-memory handle is not what you want to check for. It's only one kind of Perl file handle that's not a system file handle.

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