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Compiler Error C2452

'type' : invalid source type for safe_cast

The source type for safe_cast was not valid. For example, all types in a safe_cast operation must be CLR types.

The following sample generates C2452:

// C2452.cpp
// compile with: /clr

struct A {};
struct B : public A {};

ref struct C {};
ref struct D : public C{};

int main() {
   A a;
   safe_cast<B*>(&a);   // C2452

   // OK
   C ^ c = gcnew C;
   safe_cast<D^>(c);
}

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