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   struct            get_struct                             
                     get_str                                
                     get_zstr                               
   wstr     nwstr                                           
                     get_zwstr                              
                     get_rzwstr                              
   real     nreal    get_real    get_nreal     read_real    read_nreal
   double   ndouble  get_double  get_ndouble   read_double  read_ndouble
);

sub B () { "C" }  sub BS () { 1 }
sub W () { "v" }  sub WS () { 2 }
sub L () { "V" }  sub LS () { 4 }
sub R () { "f" }  sub RS () { 4 }
sub D () { "d" }  sub DS () { 8 }

##
## EXPORT functions, will be exported by default.
##

# thing ($number)
sub byte   { pack (B, $_[0]) }
sub word   { pack (W, $_[0]) }
sub long   { pack (L, $_[0]) }
sub real   { pack (R, $_[0]) }