Compiler Error C2884

'name' : introduced by using-declaration conflicts with local function 'function'

You tried to define a function more than once. The first definition is a local definition. The second is from a namespace with a using declaration.

The following sample generates C2884:

// C2884.cpp  
namespace A {  
   void z(int);  
}  

void f() {  
   void z(int);  
   using A::z;   // C2884 z is already defined  
}