Compiler Warning (level 1) C4813

'function' : a friend function of a local class must have been previously declared

Remarks

A friend function in an inner class was not declared in the outer class.

Example

The following example generates C4813:

// C4813.cpp
// compile with: /W1 /LD
void MyClass()
{
   // void func();
   class InnerClass
   {
      friend void func();   // C4813 uncomment declaration above
   };
}