How to call a C function from D that takes a FILE * as an argument?

[WebFreak001]

On Wednesday, 4 July 2018 at 02:54:47 UTC, Joe wrote:
> On Wednesday, 4 July 2018 at 02:16:00 UTC, Seb wrote:
>> Hmm, calling e.g. fprintf with stdout should just work:
>>
>> ---
>> void main()
>> {
>>     import core.stdc.stdio;
>>     fprintf(stdout, "Hello %s", "world".ptr);
>> }
>> ---
>>
>> Could you maybe provide your whole code?
>
> This short test program shows the error:
>
> ---
> import std.stdio;
>
>
> void main()
> {
>     extern (C) void list(FILE *fd);
>     list(stdout);
> }
> ---
>
> Now I fixed this by changing the import to core.stdc.stdio. I 
> guess the problem is if you import std.stdio (which brings in 
> the other one), there are two slightly incompatible stdout's 
> and the D takes precedence.

`stdout.getFP` (stdout is of the D std.stdio.File struct type and 
with getFP you get the underlying FILE*)