[LLVMbugs] [Bug 20398] clang C++11 wrong number of template parameters using aliases with template parameter pack

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=20398

Richard Smith <richard-llvm at metafoo.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |richard-llvm at metafoo.co.uk
         Resolution|---                         |FIXED

--- Comment #1 from Richard Smith <richard-llvm at metafoo.co.uk> ---
This code is ill-formed per the current direction of core issue 1430; clang
trunk rejects it:

<stdin>:18:31: error: pack expansion used as argument for non-pack parameter of
alias template
    using TailBar = Tail<Bar, Ts...>;
                              ^~~~~
<stdin>:4:47: note: template parameter is declared here
template <template <class...> class TT, class T, class... Rest>
                                              ^

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