Hariharan <[EMAIL PROTECTED]> writes: > I found something rather strange with the unsigned comparison warnings > in GCC.
This is the wrong mailing list. The mailing list gcc@gcc.gnu.org is for gcc developers. The mailing list [EMAIL PROTECTED] is for questions about using gcc. Please take any followups to [EMAIL PROTECTED] Thanks. > and i did gcc -O2 -c trial.c, then i get a warning > > trial.c:6: warning: comparison is always true due to limited range of data > type > > It works the same way if i used an unsigned short. But, if i use > unsigned int/long, i dont get this warning. This is on x86. Is there > an explanation for this? You neglected to mention the version of gcc. In current gcc, I don't see any warning when using "gcc -O2 -c trial.c". I see a warning for both "unsigned char" and "unsigned int" when I add the -Wextra option. Ian
