type MedCard = Cardinal attribute (Size = BitSizeOf (MedInt));
MedCard is an unsigned integer type which is not smaller than Cardinal. On some platforms it actually is the same as Cardinal and 32 bits wide and thus has a range of 0 .. 4294967295.
MedCard in GNU Pascal is compatible to long unsigned int in GNU C. This compatibility is the reason why MedCard exists.
There are lots of other integer types in GPC, see Integer Types.
MedCard is a GNU Pascal extension.
program MedCardDemo; var a: MedCard; begin a := 42; WriteLn (a) end.
Integer Types, Subrange Types.