[Bug c++/127301] `__attribute__((const))` can be better documented with respect to memory access

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127301

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
You missed the first part:

"The const attribute prohibits a function from reading objects that affect its
return value between successive invocations."

Note the reading part there. The C++ standard defines what is a read too.