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Testing failures: How to override print to make it fail?

by eyepopslikeamosquito (Canon)
on May 05, 2005 at 03:00 UTC ( #454223=perlquestion: print w/ replies, xml ) Need Help??

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  1. or download this
    BEGIN {
        *CORE::GLOBAL::open = sub (*;$$) { return undef };
    }
    open(my $fh, '>', 'f.tmp') or die "error: open";
    print $fh "hello\n" or die "error: print";
    
  2. or download this
    BEGIN {
        *CORE::GLOBAL::print = sub (*;@) { return undef };
    }
    open(my $fh, '>', 'f.tmp') or die "error: open";
    print $fh "hello\n" or die "error: print";
    

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