http://d.puremagic.com/issues/show_bug.cgi?id=670
--- Comment #7 from Iain Buclaw <ibuc...@ubuntu.com> 2011-01-16 06:45:15 PST ---
(In reply to comment #6)
> va_list is a void* on 64 bit targets, too. I originally had it as a pointer to
> that wacky struct required for the 64 bit C ABI, but it works better to treat
> it as a void*, and in the implementation of va_arg do the casting as
> necessary.
> This helps preserve encapsulation.
I'm currently at the point where I'm prototyping passing varargs in a packed
structure (generated on the fly by the caller) on the stack. And using C
varargs to get the address to assign to _argptr.
Think:
foo (parm, ...)
{
va_start(__cargptr, parm);
_argptr = va_arg(__cargptr, void*);
}
foo(&__argstruct);
So far it seems to be working well on 32bit architectures for simple
datatypes...
Needs more testing though before I'd consider it fit for pushing out there.
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