On Fri, 10 Apr 2009, Namita wrote: > > From: Saifi Khan <[email protected]> > > Subject: [twincling] two C programs > > Sent: 10 Apr '09 04:21 > > > > Hi all: > > > > What is the difference between the following two C programs ? > > > << snipped >> > > All observations and insights are very welcome. > > > > > > thanks > > Saifi. > > > > Ran both snippets on little endian and big endian machines. > In all (four) cases the results were the same. > > Did you observe something different ? > > > Details: > > (gdb) b main > Breakpoint 1 at 0x8048350: file hex-char.c, line 5. > (gdb) r > Starting program: ~niyer/trials/hex-char > > Breakpoint 1, main (argc=1, argv=0xbfe72a34) at hex-char.c:5 > 5 unsigned char uc[] = "\xFF"; > (gdb) n > 6 return 0; > (gdb) p uc > $1 = "ÿ" > (gdb) p /x uc > $2 = {0xff, 0x0} > > > --- > > > (gdb) b main > Breakpoint 1 at 0x8048350: file hex-char.c, line 16. > (gdb) r > Starting program: ~niyer/trials/hex-char > > Breakpoint 1, main (argc=1, argv=0xbff2ccd4) at hex-char.c:16 > 16 unsigned char uc[2] = { (unsigned char)(char) 0xFF, 0 }; > (gdb) n > 18 return 0; > (gdb) p uc > $1 = "ÿ" > (gdb) p /x uc > $2 = {0xff, 0x0} > (gdb) >
Namita, you're right. There is *no* difference between the two programs :) thanks Saifi. [Non-text portions of this message have been removed] ------------------------------------ Twincling Technology Foundation freedom of innovation http://twincling.org/ http://twitter.com/twincling ---------------------------------------- Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/twincling/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/twincling/join (Yahoo! ID required) <*> To change settings via email: mailto:[email protected] mailto:[email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
