This constuct is in both K&R and ANSI C. I would expect it to work in most reasonable compilers. Of course, some "C" compilers for microcontrollers are not all that reasonable :-) Bob Ammerman RAm Systems (high function, high performance, low-level software) ----- Original Message ----- From: William Chops Westfield To: Sent: Friday, May 26, 2000 7:17 PM Subject: Re: [OT]: C syntax question > Is "\xNN" a widely supported construct? > > BillW