On 12/15/19 12:14 AM, arn...@skeeve.com wrote: > int64_t is just as standard as ptrdiff_t and just as clear.
Actually, int64_t is optional (as even C18 and POSIX-2018 do not require it), whereas ptrdiff_t has been required since C89. More importantly, int64_t would be overkill on 32-bit GNU/Linux, whereas ptrdiff_t suffices and is typically more efficient. (Besides, what would we do if 72-bit pointers came back into vogue? :-)
