PerlIO::scalar(3pm) Perl Programmers Reference Guide PerlIO::scalar(3pm) 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 $fh, ">>:scalar", \$scalar or die; DESCRIPTION A filehandle is opened but the file operations are performed "in-memory" on a scalar variable. All the normal file operations can be performed on the handle. The scalar is considered a stream of bytes. Currently fileno($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". perl v5.16.3 2013-03-04 PerlIO::scalar(3pm)
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