CVS: cvs.openbsd.org: src

[Marc Espie <espie_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org>]

CVSROOT:	/cvs
Module name:	src
Changes by:	espie_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org	1999/11/20 11:52:01

Modified files:
	sys/dev        : audio.c 
	sys/net        : if.c 
	sys/dev/pci    : brooktree848.c 
	sys/arch/i386/i386: pctr.c 
	sys/arch/i386/isa/pcvt: pcvt_drv.c pcvt_ext.c pcvt_hdr.h 
	                        pcvt_kbd.c pcvt_sup.c 
	sys/compat/ossaudio: ossaudiovar.h 
	sys/compat/ibcs2: ibcs2_syscallargs.h 

Log message:
ioctl arguments are u_long.
Replaces `undefined' code with `defined' behavior...

gcc 2.96 performs switch cases range analysis, warns about unreachable
cases, and weeds them out.

In

switch(i) {
case VALUE:
}

VALUE is first coerced into the type of i.  If i is signed, VALUE is
unsigned and exceeds i range, you lose... the result of the conversion
is undefined.