in reply to Re^2: Take reference and then dereference die() and warn()
in thread Take reference and then dereference die() and warn()

But you simply don't need that: you can just die or warn in the usual way within your ternary operator, as you can see in the following Perl one-liners:

$ perl -e '$die_on_err=shift; 0 or ($die_on_err? die "failed\n" : warn + "warning\n")' 1 failed $ perl -e '$die_on_err=shift; 0 or ($die_on_err? die "failed\n" : warn + "warning\n")' 0 warning

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Re^4: Take reference and then dereference die() and warn()
by dmitri (Priest) on Nov 09, 2013 at 04:52 UTC
    I realize that; my error message is much longer than "failed", and I do not want to copy-and-paste it.

      OK, I understand your motivations, now.

      You still have numerous simpler ways to do it, such as storing your long error message in a variable (you actually had a $error variable in your original post) or doing something like this:

      $ perl -e 'use diagnostics; $die_on_err=shift; 0 or print "error messa +ge" and ($die_on_err? die $! : warn "\n" ) ' 0 error message
      or, yet simpler, using a subroutine such as the one proposed by Jenda in this post: Re: Take reference and then dereference die() and warn().