Path: utzoo!attcan!uunet!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!bloom-beacon!adam.pika.mit.edu!scs From: scs@adam.pika.mit.edu (Steve Summit) Newsgroups: comp.bugs.2bsd Subject: %x vs. %X vs %lx (was: NTP 3.4.1.6 porting problems +FIX) Message-ID: <13110@bloom-beacon.MIT.EDU> Date: 29 Jul 89 06:08:30 GMT References: <34005@wlbr.IMSD.CONTEL.COM> Sender: daemon@bloom-beacon.MIT.EDU Reply-To: scs@adam.pika.mit.edu (Steve Summit) Lines: 16 In article <34005@wlbr.IMSD.CONTEL.COM> sms@wlv.imsd.contel.com (Steven M. Schultz) writes: > In porting NTPD and friends I uncovered a number of > problems, all related to being on a machine where > sizeof (int) != sizeof (long). Using %X to print > the value of ntohs()... The old code was doubly wrong; %X shouldn't be used to print a long. %X, %D, %U, and %O no longer imply a long argument; long arguments are uniquely indicated with the 'l' modifier: %lx, %ld, %lu, and %lo. %X now means "hexadecimal, but use ABCDEF instead of abcdef." The other three are undefined. (The code presumably worked to print the long result of ntohs() on a machine with sizeof(int) == sizeof(long).) Steve Summit scs@adam.pika.mit.edu