Re^2: What happened to dor and err in Perl 5.10?

Thank you. That's exactly what I am looking for.

Comment on Re^2: What happened to dor and err in Perl 5.10?

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Re^3: What happened to dor and err in Perl 5.10? by ikegami (Patriarch) on Jan 05, 2008 at 14:44 UTC
Just like `or` is almost only be useful in structures of the form `func arg or stmt;` [download] `err` would almost only be useful in structures of the form `func arg err stmt;` [download] Simply replacing `err` with `//` would be wrong, but appropriate use of parens will do the trick: `func(arg) // stmt;` [download] `(func arg) // stmt;` [download] `if (not defined func arg) { stmt; }` [download] etc.	[reply] [d/l] [select]

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Just like or is almost only be useful in structures of the form

func arg
  or stmt;
[download]

err would almost only be useful in structures of the form

func arg
  err stmt;
[download]

Simply replacing err with // would be wrong, but appropriate use of parens will do the trick:

func(arg)
   // stmt;
[download]

(func arg)
   // stmt;
[download]

if (not defined func arg) {
   stmt;
}
[download]

etc.