No this is not incorrect at all, it is exactly what you expect. The glob *X consists of the following elements $X @X %X &X and X (the filehandle). When you write open *X, $foo Perl opens $foo onto the filehandle X from the *X glob. Thus when you say close X you close the filehandle X - this is what your close $_ example does. When you say close *X Perl also does a close X as X is the filehandle in the *X glob - this is what your close $rh{$_} example does.
Update (changed code to better example)
#/usr/bin/perl -w
use strict;
my %rh = (E=> *E, F=> *F, G=> *G);
{
no strict 'refs';
print "\n\n\$_ has a value, used as a hard reference\n";
for (values %rh) {
open $_, ">test.txt" or die $!;
print $_ "$_ This works\n";
close $_ or die $!;
open $_, "<test.txt" or die $!;
print <$_>;
close $_ or die $!;
unlink "test.txt" or die $!;
}
print "\n\n\$_ has a value, used as a symbolic reference\n";
for (keys %rh) {
open $_, ">test.txt" or die $!;
print $_ "$_ This works\n";
close $_ or die $!;
open $_, "<test.txt" or die $!;
print <$_>;
close $_ or die $!;
unlink "test.txt" or die $!;
}
}
# and under strict....
print "\n\n\$_ has a value, used as a hard reference\n";
for (values %rh) {
open $_, ">test.txt" or die $!;
print $_ "$_ This works\n";
close $_ or die $!;
open $_, "<test.txt" or die $!;
print <$_>;
close $_ or die $!;
unlink "test.txt" or die $!;
}
print "\n\n\$_ has a value, used as a symbolic reference\n";
for (keys %rh) {
open $_, ">test.txt" or die $!;
print $_ "$_ This works\n";
close $_ or die $!;
open $_, "<test.txt" or die $!;
print <$_>;
close $_ or die $!;
unlink "test.txt" or die $!;
}
Part of the problem you are having is not distinguishing a hard reference (OK under strict) an a symbolic reference (not OK under strict)
cheers
tachyon
s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print
|