On 09/06/2012 02:33 PM, Jim Meyering wrote: >> > * We have some hardwired W_TYPE_SIZE settings for the code interfacing >> > to longlong.h. It is now 64 bits. It will break on systems where >> > uintmax_t is not a 64-bit type. Please see the beginning of >> > factor.c. > I wonder how many types of systems would be affected.
It's only a matter of time. GCC already supports 128-bit integers on my everyday host (Fedora 17, x86-64, GCC 4.7.1). Eventually uintmax_t will grow past 64 bits, if only for the crypto guys. If the code needs exactly-64-bit unsigned integers, shouldn't it be using uint64_t? That's the standard way of doing that sort of thing. Gnulib can supply the type on pre-C99 platforms. Weird but standard-conforming platforms that don't have uint64_t will be out of luck, but surely they're out of luck anyway.
