Compiler Error C2894

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templates cannot be declared to have 'C' linkage

This error can be caused by a template defined inside an extern "C" block.

The following sample generates C2894:

// C2894.cpp
extern "C" {
   template<class T> class stack {};   // C2894 fail
   
   template<class T> void f(const T &aT) {}   // C2894
}

The following sample generates C2894:

// C2894b.cpp
// compile with: /c
extern "C" template<class T> void f(const T &aT) {}   // C2894

template<class T> void f2(const T &aT) {}   // OK