comment on

autodie for IO operations.
RaiseError with DBI.
XML::Parser: A die call is thrown if a parse error occurs.
XML::LibXML will throw an exception if a parsing error occurs.
warnings can be elevated to fatals. See perllexwarn.
strict will make some risky behaviors an error that won't allow execution to begin.
perlrun: Taint mode will throw an exception if it catches you doing unsafe things with tainted input.
You can, of course, pepper your code with or die $! or or die "Message..."

There are plenty of other possibilities too, if we knew what you're after.

Dave

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