calling C variadic arguments with no 'argc' and only variadic arguments

[Daniel Murphy via Digitalmars-d]

"Laeeth Isharc"  wrote in message 
news:jmlgralvzaqperfkntqw at forum.dlang.org...

> DMD gave me an error message for the following declarations:
>
> double mgl_rnd (...);
> double mgl_rnd_ (...);
>
> It says I need at least one fixed argument first.  But the C headers are 
> as they are.
>
> I could work around this by writing a C stub
>
> double mgl_rnd_(int dummy, ...)
>
> but is there any way to call these functions without this workaround?

You should just declare them with the actual argument types.  From a quick 
look at the documentation it seems like the correct signature would be
double mgl_rnd();

i.e. these functions aren't actually variadic they just haven't specified 
the signature.  Functions that take variadic arguments will pretty much 
always have at least one named argument.