On Tue, Apr 7, 2020 at 10:45 AM Brooks Davis <bro...@freebsd.org> wrote: > On Tue, Apr 07, 2020 at 07:32:37PM +0200, Hans Petter Selasky wrote: > > Is there a reason for using "void *" here? > > > > char *ifr_addr_get_data(void *ifrp); > > Because the type is unknown at this point (it may be struct ifreq or > struct ifreq32 (or in CheriBSD struct ifreq64)). By using "void *" here > we avoid the need to insert a wrong cast.
I think the question (or my question anyway) is: why void*, and not a union pointer? A union pointer would never be a wrong cast for the caller, and inherent in this design is essentially treating the pointer as a union on the callee side of things. Thanks, Conrad _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
