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Compiler Error C3869

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gcnew constraint is missing empty parameter list '()'

The gcnew special constraint was specified without the empty parameter list. See Constraints on Generic Type Parameters (C++/CLI) for more information.

Example

The following sample generates C3869.

// C3869.cpp
// compile with: /c /clr
using namespace System;
generic <typename T>
where T : gcnew   // C3869
// try the following line instead
// where T : gcnew()
ref class List {};