There is file called lib/B.pm here there is function as follows
sub B::IV::int_value { my ($self) = @_; my $ni = $self->IV; # i have added this print "\n $ni $self \n"; # i have added this return (($self->FLAGS() & SVf_IVisUV()) ? $self->UVX : $self->IV); } when i tried printing the $ni. if i run the following comman perl "-I../lib" -MO=Concise,BEGIN,CHECK,INIT,END,-exec -e '$a=$b && print q/foo/' then $ni is printing negative value -1585856300 (i am working on EBCDIC platform) B::PVIV=SCALAR(0x2102f900) my question 1. what is that negative value is it correct or what. 2. how is variable IV is populated from where? 3. what is the meaning of B::PVIV=SCALAR(0x2102f900) 4. if u go to the begining of the file (lib/B.pm) and comment the following line @B::PVIV::ISA = qw(B::PV B::IV); on running the above mentioned line gives error. Here from where B::IV is picked from. what is the exact meaning of "B::IV" Regards Yaseen --------------------------------- Yahoo! Mail for Mobile Take Yahoo! Mail with you! Check email on your mobile phone.