I'm passing structs around (collections of strings) whose .sizeof
returns 432.
The readme for 2.094.0 includes the following:
This release reworks the meaning of in to properly support all
those use cases. in parameters will now be passed by reference
when optimal, [...]
* Otherwise, if the type's size requires it, it will be passed
by reference.
Currently, types which are over twice the machine word size
will be passed by
reference, however this is controlled by the backend and can be
changed based
on the platform's ABI.
However, I asked in #d a while ago and was told to always pass by
value until it breaks, and only then resort to ref.
[18:32:16] <zorael> at what point should I start passing my
structs by ref rather than by value? some are nested in others,
so sizeofs range between 120 and 620UL
[18:33:43] <Herringway> when you start getting stack overflows
[18:39:09] <zorael> so if I don't need ref for the references,
there's no inherent merit to it unless I get in trouble without
it?
[18:39:20] <Herringway> pretty much
[18:40:16] <Herringway> in many cases the copying is merely
theoretical and doesn't actually happen when optimized
I've so far just been using const parameters. What should I be
using?
