Passing Filehandles

• This method for filehandles causes some problems

        open FH, ...;
        $data = read_block(FH);

        package My::IO;

        sub read_block {
          my $fh = shift;
          my $buf;
          read $fh, $buf, $BLOCKSIZE;
          $buf;
        }

• Here the read function is given the string FH

  • But FH means My::IO::FH, not main::FH

  • Function doesn't work

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Copyright © 2003 M. J. Dominus