in reply to Re^2: Problem to store referrence as key value in a hash
in thread Problem to store referrence as key value in a hash

No but :
print pack('h', 0x814f5c4)
will give you a nice smiling face ☺
{ use charnames ':full'; my $smiling_face = "\N{WHITE SMILING FACE}"; }
Tested under XP and the latest Cygwin

PooLpi ;)