rogfer01 added inline comments.
================
Comment at: lib/Sema/SemaTemplate.cpp:7021
+ // C++ [temp]p6:
+ // A template, a template explicit specialization, and a class template
+ // partial specialization shall not have C linkage.
----------------
miyuki wrote:
> rogfer01 wrote:
> > Can you add a test for a partial specialization? Your test for the class
> > case only includes an explicit specialization.
> >
> > ```lang=cpp
> > template <typename T>
> > struct A { };
> >
> > extern "C" {
> >
> > template <typename T> // I'd expect a diagnostic around here
> > struct A<T*>
> > {
> > };
> >
> > }
> > ```
> Currently the location used for template specialization-related diagnostics
> is on the next line, e.g.:
>
> ```
> /work/llvm/src/tools/clang/test/SemaTemplate/class-template-spec.cpp:242:10:
> error: templates must have C++ linkage
> struct C<T*> {};
> ^
> ```
>
> Do we want to use a different location for this particular diagnostic?
Oh sorry, I was not precise when I put that example. I don't think it should be
different in this case.
https://reviews.llvm.org/D41179
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