https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86299
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to zhonghao from comment #0)
> The code seems to be invalid, but g++ accept the code. In fact, a previous
> version of clang++ also accepts it, but was fixed in
> https://bugs.llvm.org/show_bug.cgi?id=7385
No, it looks like Clang used to crash, not accept it. It's not helpful to
misrepresent the problem.
>
> The latest clang++ produces the following error message:
> error: no member named 'value' in 'has_xxx0<int>::has_xxx0_introspect<int>'
> static const int value = has_xxx0_introspect<int>::value;
> ~~~~~~~~~~~~~~~~~~~~~~~~~~^
Every version for a decade produces that error.
G++ also gives an error if you try to use the value member, which is all the
standard requires. Errors in uninstantiated templates are not required to be
diagnosed.
