The behaviour is described in the first several paragraphs of perldoc -f die. Search for "if the output is empty". GEN0 refers to an input file handle.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Very weird bug - insight would be helpful by choroba
in thread Very weird bug - insight would be helpful by zork42

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