scalar(3)

NAME

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

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-mem-
       ory" on a scalar variable.  All the normal file operations can be per-
       formed on the handle. The scalar is considered a stream of bytes.  Cur-
       rently fileno($fh) returns "undef".

IMPLEMENTATION NOTE

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

perl v5.8.6                       2001-09-21                 PerlIO::scalar(3)