https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110143
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
N.B. the <fmt> library agrees that int* cannot be formatted:
/usr/include/fmt/core.h:1751:17: error: static assertion failed: Formatting of
non-void pointers is disallowed.
1751 | static_assert(formattable_pointer,
| ^~~~~~~~~~~~~~~~~~~
/usr/include/fmt/core.h:1751:17: note: ‘formattable_pointer’ evaluates to false
