[PATCH] D41179: [Sema] Diagnose template specializations with C linkage

[Roger Ferrer Ibanez via Phabricator via cfe-commits]

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.
----------------
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*>
{
};

}
```


https://reviews.llvm.org/D41179