On Wednesday, 4 August 2021 at 01:10:15 UTC, Mike Parker wrote:
On Tuesday, 3 August 2021 at 21:40:09 UTC, james.p.leblanc
wrote:
[...]
The alias to Complex!double is a template instantiation. A
template instantiation creates a symbol that needs to be
linked. So you need to compile my_module.d along with my_main.d.
```
dmd my_main.d my_module.d
```
Or alternatively:
```
dmd -i my_main.d
```
double is a built-in type, so that alias doesn't create any
symbols that need linking.
An alias in and of itself is a compile-time-only construct, but
the symbols you assign it might require linking something.
Mike,
Aha... that makes sense now!
Thanks kindly for helping me understand what was happening with
your
informative reply. The fact of template instantiations and
symbols
had escaped me completely.
I appreciate it.
Best Regards,
James
