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Manual Reference Pages  -  PERLIO::SCALAR (3)

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NAME

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

CONTENTS

SYNOPSIS



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



or



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



DESCRIPTION

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.

IMPLEMENTATION NOTE

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.
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perl v5.22.1 PERLIO::SCALAR (3) 2015-10-17

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