It also says:

> 2. Structs with no fields of non-zero size (aka Empty Structs) have a size of one byte.

On Fri, May 12, 2023, 7:01 PM Nick Treleaven via Digitalmars-d <digitalmars-d@puremagic.com> wrote:

On Thursday, 11 May 2023 at 13:51:28 UTC, Dukc wrote:
> `sizeof(Tuple!()) == 1`. I'm not sure why.

The spec says `sizeof` for an empty struct is implementation
defined:
https://dlang.org/spec/struct.html#struct_layout