Scott Robert Ladd wrote: > I always wondered why C99 didn't define both int128_t and uint128_t in > <stdint.h>. However, according to 7.18.1.1, p3, intN_t and uintN_t are *all* optional. I wonder if any 64 bit architecture actually provides 128bit integer types, typedef-ed in stdint.h. Sparc64?!? s390x?!? Paolo.