Interfacing with C++

[rikki cattermole]

On 04/02/2018 7:54 AM, infinityplusb wrote:
> Hi all
> 
> I'm looking to try and write an interface to C++, but given I'm a casual 
> dabbler in D, it's slightly beyond my current ability in terms of both 
> C++ and D!
> 
> As a leg up, how would one translate something like this from C++ to D?
> 
> `typedef int (CV_CDECL* CvCmpFunc)(const void* a, const void* b, void* 
> userdata );`
> 
>  From my basic understanding I assumed something like:
> 
> `alias CvCmpFunc = Typedef!(int) ; `
> 
> but then I'm stuck as to where the rest of the parameters would get passed?
> Do I just declare it as a function instead? That wasn't my understanding 
> of reading how typedefs worked, however so I'm a little confused.
> 
> Any help would be appreciated.
> 
> Regards

alias CvCmpFunc = extern(C /* I think */) int function(const void* a, 
const void* b, void* userdata);