Passing null as a string

[David Smith]

I'm trying to wrap a library that has a function that takes a `char *`, and optionally NULL.

I tried strptr, string, and other random types I found in the prelude. Now I'm trying to pass NULL (using `the_null_ptr`; great name btw), and I'm getting type errors.

Which string should I use here, and how would I pass null?

Thanks in advance.

[Troy Jacobs]

I would suggest either trying the "stropt" type or the "Option_vt" type.  Would you mind sharing a snippet of code, so that we could get a better understanding of what you are trying to do?

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[David Smith]

Yes! stropt seems to be exactly what I want. Thank you!

[Troy Jacobs]

No problem. ✌😊

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