Compiler Error C3400

circular constraint dependency involving 'constraint_1' and 'constraint_2'

Remarks

The compiler detected circular constraints.

For more information, see Constraints on Generic Type Parameters (C++/CLI).

Example

The following example generates C3400.

// C3400.cpp
// compile with: /clr /c
generic<class T, class U>
where T : U
where U : T   // C3400
public ref struct R {};