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Compiler Error C2691

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'data type' : a managed or WinRTarray cannot have this element type

The type of a managed or WinRT array element can be a value type or a reference type.

The following sample generates C2691:

// C2691a.cpp
// compile with: /clr
class A {};

int main() {
   array<A>^ a1 = gcnew array<A>(20);   // C2691
   array<int>^ a2 = gcnew array<int>(20);   // value type OK
}