Compiler Warning (level 1) C4364
Visual Studio 2015
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The latest version of this topic can be found at Compiler Warning (level 1) C4364.
using for assembly 'file' previously seen at location(line_number) without as_friend attribute; as_friend not applied
A #using directive was repeated for a given metadata file, but the as_friend qualifier was not used in the first occurrence; the compiler will ignore the second as_friend.
For more information, see Friend Assemblies (C++).
The following sample creates a component.
// C4364.cpp
// compile with: /clr /LD
ref class A {};
The following sample generates C4364.
// C4364_b.cpp // compile with: /clr /W1 /c #using " C4364.dll" #using " C4364.dll" as_friend // C4364
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