Compiler Error C3384

 

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The latest version of this topic can be found at Compiler Error C3384.

type_parameter' : the value constraint and the ref constraint are mutually exclusive

You cannot constrain a generic type to both value class and ref class.

See Constraints on Generic Type Parameters (C++/CLI) for more information.

The following sample generates C3384.

// C3384.cpp  
// compile with: /c /clr  
generic <typename T>  
where T : ref class  
where T : value class   // C3384  
ref class List {};  

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