Compiler Error C3215
Visual Studio 2015
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The latest version of this topic can be found at Compiler Error C3215.
type1' : generic type parameter already constrained by 'type2'
A constraint was specified more than once.
For more information on generics, see Generics.
The following sample generates C3215:
// C3215.cpp
// compile with: /clr
interface struct A {};
generic <class T>
where T : A,A
ref class C {}; // C3215
Possible resolution:
// C3215b.cpp
// compile with: /clr /c
interface struct A {};
generic <class T>
where T : A
ref class C {};
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