On Friday, 5 May 2023 at 22:56:20 UTC, bachmeier wrote:

Here's a simpler example using math.h that works for me:

https://gist.github.com/bachmeil/6da28f934454864b7ddf80e2d1eaa5e5

On Friday, 5 May 2023 at 22:56:20 UTC, bachmeier wrote:

dmd test.d -P-I. -P-I../gnuwin32/fixed/h -P-I../include -L/usr/lib/libR.so

This statement is wrong. If it's included in the compilation command like this

dmd test.d qnorm.c -P-I. -P-I../gnuwin32/fixed/h -P-I../include -L/usr/lib/libR.so

the file qnorm.c is compiled and Rf_qnorm5 comes from there. If it's excluded

dmd test.d -P-I. -P-I../gnuwin32/fixed/h -P-I../include -L/usr/lib/libR.so

it's pulled from libR.so.

On Friday, 5 May 2023 at 23:05:02 UTC, bachmeier wrote:

I’m afk this weekend, but I didn’t have a .c file that included the math header. I just wanted to use the c header directly in the d file. I want to try having a blank .c file that includes the math header and see if I can use that with D.

On Saturday, 6 May 2023 at 00:35:46 UTC, jmh530 wrote:

I updated the gist so the c file contains only #include <math.h>. It works.

On Saturday, 6 May 2023 at 01:07:15 UTC, bachmeier wrote:

Thanks!

On Saturday, 6 May 2023 at 01:07:15 UTC, bachmeier wrote:

I was able to get nlopt's tutorial example working with importC. I can write a bit more up later.

The only thing that I wasn't able to get working was using the HUGE_VAL macro in math.h. Would anyone else be able to confirm if they are able to get that working?

On Monday, 8 May 2023 at 13:22:44 UTC, jmh530 wrote:

In the .c file or the .d file? If in the .d file, you'll need to use core.stdc.math.HUGE_VAL. If in the .c file, it's a bug.

On Monday, 8 May 2023 at 14:36:10 UTC, bachmeier wrote:

I was just trying out using it directly in the .d file without importing core.stdc.math. I am able to use HUGE_VAL in the .c file (so not a bug that way). The c math header should be setting HUGE_VAL based on a preprocessor macro (on WSL I assume it should run automatically). I was assuming that importC would re-write that to an enum that I could use directly in the D file, but the spec says that it doesn't support all uses of metaprogramming with these. You think that's what I'm running into?

On Monday, 8 May 2023 at 15:34:32 UTC, jmh530 wrote:

Hmm, I'm not sure how much sense that makes since I'm able to use it in the .c file...