PerlIO::scalar man page on Archlinux

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PerlIO::scalar(3perl)  Perl Programmers Reference Guide	 PerlIO::scalar(3perl)

       PerlIO::scalar - in-memory IO, scalar IO

	  my $scalar = '';
	  open my $fh, "<",  \$scalar or die;
	  open my $fh, ">",  \$scalar or die;
	  open my $fh, ">>", \$scalar or die;


	  my $scalar = '';
	  open my $fh, "<:scalar",  \$scalar or die;
	  open my $fh, ">:scalar",  \$scalar or die;
	  open my $fh, ">>:scalar", \$scalar or die;

       A filehandle is opened but the file operations are performed "in-
       memory" on a scalar variable.  All the normal file operations can be
       performed on the handle. The scalar is considered a stream of bytes.
       Currently fileno($fh) returns -1.

       "PerlIO::scalar" only exists to use XSLoader to load C code that
       provides support for treating a scalar as an "in memory" file.  One
       does not need to explicitly "use PerlIO::scalar".

perl v5.18.2			  2014-01-06		 PerlIO::scalar(3perl)

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