I made some changes to some code I'm working on and now there are some lines that are giving me funky DMD error codes (I can tell it is some lines because I comment them out and the errors go away). So for instance, one line I have a static assert that gives an error code -1073741819, but if I split it up into two pieces (so that part of it is assigned to a value and then I use typeof that value in the static assert), then DMD does not complain. Does anyone have any idea what causes these types of errors?

I was leaning towards it being something related to running out of memory or something, but I'm using dub and I've tried turning on and off "lowmem".

I also have used -v both in dflags and at the command line and haven't noticed any obvious errors.

On Tuesday, 3 May 2022 at 18:22:49 UTC, jmh530 wrote:

Note that dub cannot pass -lowmem to dmd.

https://issues.dlang.org/show_bug.cgi?id=20699

On Tuesday, 3 May 2022 at 18:22:49 UTC, jmh530 wrote:

Sounds like a stack overflow, maybe your code has a complex/recursive part that makes DMD's call stack very deep.

On Tuesday, 3 May 2022 at 19:03:56 UTC, Dennis wrote:

Thanks. I think this was it. I figured it out, but it took a bit of time to identify where the problem was coming from...

Basically, I started out with a template like

template foo(T, U u = val, V, W) {}

and refactored it to

template foo(T, U u = val, V, W, U y = u) {}

which is when I started getting the problem, but I had changed a bunch of other stuff to introduce y, so it wasn't entirely clear why that would cause the problems.
Anyway, changing it to

template foo(T, U u = val, V, W, U y = val) {}

made the problem went away.