re: qsort_r

[matthew green <mrg%eterna.com.au@localhost>]

> On Mon, 09 Dec 2013, Mouse wrote:
> > I actually don't see anything that promises that a pointer to a 
> > function type may be converted to a pointer to void, nor back 
> > again (except, in each direction, when the original pointer is 
> > nil), much less promising anything about the results if it is 
> > done.  But I haven't read over the whole thing recently enough 
> > to be sure there isn't such a promise hiding somewhere.
> 
> Sorry, I did not express myself clearly enough.  C does not 
> promise that function pointers can be converted to or from void* 
> pointers, but I believe that all existing NetBSD implementations 
> do allow such conversions.

if you include the powerpc64 port in the list of existing
netbsd implementations, then we do have one.. or at least
sort of.  i don't recall the details, but they're not just
simple pointers you jump to, and the descriptors take up
more space than a normal pointer.


.mrg.