https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97776
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- As p is array of pointers, if it was say p[i:2][0:C] it would be non-contiguous, but in this particular case, while such array sections are blurry (because the array section describes the p[i][0], p[i][1] etc. (contiguous) as well as the p[i] pointer that points to it), I agree it should be probably accepted. That said, we really need to rewrite the array section handling completely in the C/C++ FEs, such that rather than having just a special case we just set some parser flag that array sections are allowed and during parsing of [ ... ] if that flag is on we also parse the :s in there and create a new ARRAY_SECTION_REF or similar, and then only later on verify that the array section is where it can be specified and deal also with the non-contiguous to/from etc.
