Does in glibc, the sizeof(ssize_t) always equals to sizeof(size_t)

[Paul Eggert]

On 2026-05-21 10:58, Yonggang Luo wrote:
> So I have this question, to collect it all POSIX implementation have
> sizeof(ssize_t)==sizeof(size_t)

The only POSIXish platforms I know of that did this (OSF/1, UNICOS, late 
old AmigaOS/AROS/MorphOS, old TRON) are long dead.

What's the motivation here? Do you want to prohibit implementations 
where sizeof (size_t) < sizeof (ssize_t), and if so, why? Also, will you 
prescribe sizeof (ptrdiff_t) too?