> my recollection is that ptrdiff_t is also defined at 16 bits (which I think violates the C spec, which requires at least 17 bits?) C2x applies a proposal to

> my recollection is that ptrdiff_t is also defined at 16 bits (which I think violates the C spec, which requires at least 17 bits?) C2x applies a proposal to permit pre-C99 limits: N2808 Allow 16-bit ptrdiff_t N2808: https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2808.htm https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2808.htm Draft C2x: https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3047.pdf https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3047.pdf