Instead of using a temporary disk file, I thought I'd try to use a memory file (scalar ref), but I need to be able to use the handle with binmode $fh, ':raw' (or equivalent). Is this possible?

use strict;
use warnings;

my $mf;
my $fh;

# mem write

open $fh, '>', \$mf or die $!;
print $fh "hello\n";
close $fh;

# mem read

open $fh, '<', \$mf or die $!;
binmode $fh, ':raw';

while (<$fh>){
    print "mem: " . (unpack "H*", $_) . "\n";
}
close $fh;

# file write

open $fh, '>', 'file.txt' or die $!;
print $fh "hello\n";
close $fh;

# file read

open $fh, '<', 'file.txt' or die $!;
binmode $fh, ':raw';

while (<$fh>){
    print "file: " . (unpack "H*", $_) . "\n";
}
[download]

Output... note the difference after the 'f'. I need the mem file to reflect that of :raw like the value for file.

mem:  68656c6c6f0a
file: 68656c6c6f0d0a
[download]

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