> Well as already discovered type like strings can not go into a "record case" > > But... The above record is anyway of constant size. I.e. the memory for > the field is always included, even if it is not used. > > Since the "false" block is empty, you can do > > type > generic TOption<T> = record > IsSome:boolean; > some: T; > end; > > It is not as expressive to the reader of the code. But it leads to the > same data in memory.
Yes. Except that "some" is still initialized with something (some default) and dropped and copied and assigned despite conceptually being empty. -- Regards, Denis Golovan _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
