Re^2: What operator should perl5porters use for safe dereferencing?

[Tux]

That was my first hunch too, being a huge fan and user of the defined-or operator, but using that here would have been the opposite of what is required. What is suggested is a defined-and operator, which does not (yet) exist. For me that indeed rules out //-> and -//>. Think about it again when defined-or would be used :)