> >>>>> "Jan" == Jan Harkes <[EMAIL PROTECTED]> writes: > > Jan> only the 'long' datatype is difficult because (afaik) it is > Jan> defined as the size required to store a pointer. > > I don't think there's really a common agreement on that, either. In > particular ISTR that fails on the IA64 with function pointers.
I don't know anything about IA64 (and why that should fail), but probably stdint.h is the best reference for such a discussion; it seems as if Jan were right, but IMHO the c99-standard does not specify such a thing since it only requires long to be large enough to store the usual 32-bit numbers. Isn't the userland/kernel-interface the problem? What about moving int,long to consistent declarations of int32_t, int64_t etc.? Furthermore it is problably acceptable to cast all (userland)pointers to u_int64_t to allow 32-bit userland on 64-bit kernels!? -- Michael
