[llvm-bugs] [Bug 30551] Trailing return type accepted, even though it should be rejected

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=30551

hstong at ca.ibm.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |hstong at ca.ibm.com
         Resolution|---                         |INVALID

--- Comment #1 from hstong at ca.ibm.com ---
(In reply to comment #0)
> I suspect the function definition should be rejected for it is ill-formed, t
> cannot be used with std::integral_constant that way.

C++14 subclause 14.6 [name.res] paragraph 8:
If no valid specialization can be generated for a template, and that template
is not instantiated, the template is ill-formed, no diagnostic required.

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