* Paul Eggert: > On 9/18/20 7:34 AM, Florian Weimer via Libc-alpha wrote: >> the length modifier for printf and scanf is z, commently used as >> %zu or %zx (%zd is for ssize_t). > > While %zd works for ssize_t in glibc, POSIX doesn't guarantee that > it'll work, as ssize_t might not have the same width as size_t. (If > memory serves this goes back to the bad old days when size_t was 64 > bits and ssize_t 32 bits on some platforms.) So if we document %zd we > should say it's a GNU extension to POSIX, or something like that. I didn't know that. It's a good suggestion, thanks. Florian -- Red Hat GmbH, https://de.redhat.com/ , Registered seat: Grasbrunn, Commercial register: Amtsgericht Muenchen, HRB 153243, Managing Directors: Charles Cachera, Brian Klemm, Laurie Krebs, Michael O'Neill
