------- Comment #6 from neil at daikokuya dot co dot uk 2006-10-26 12:42 ------- Subject: Re: hex and oct constants are converted to wrong type
lukew at radterm dot com dot au wrote:- > > The resulting tokens compose the controlling constant expression which > > is evaluated according to the rules of 6.6. For the purposes of this > > token conversion and evaluation, all signed integer types and all > > unsigned integer types act as if they have the same representation as, > > respectively, the types intmax_t and uintmax_t defined in the header > > <stdint.h>.142) > > > > 142) Thus, on an implementation where INT_MAX is 0x7FFF and UINT_MAX is > > 0xFFFF, the constant 0x8000 is signed and positive within a #if > > expression even though it would be unsigned in translation phase 7. > > > > I don't get it. > > How can 0x8000 be signed AND positive when INT_MAX is a 16 bit integer? Ask yourself what its type is. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27195
