On 2024-03-24 07:20, Bruno Haible wrote: > I have proposed a fix for this in > <https://lists.gnu.org/archive/html/bug-gnulib/2023-12/msg00055.html>, > but Paul Eggert opposes it.
I took a look. There are reasons not to like it. It introduces a PTR_ADD(p, x) abstraction which is only different from p += x in that it's well defined in the p == 0 && x == 0 case. This is of low value; plus, its name doesn't reflect the purpose. It's only used in two places. The __clang__ ifdef just adds more cruft also. The behavior is undefined by ISO C, not by Clang. IMO, the fixes should just be open-coded simply without a macro, for all platforms.
