Compiler Error C3833
Visual Studio 2015
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The latest version of this topic can be found at Compiler Error C3833.
type' : invalid target type for pointer_type
An interior_ptr or pin_ptr was declared incorrectly.
The following sample generates C3833:
// C3833.cpp
// compile with: /clr
ref class MyClass {
public:
int data;
MyClass() : data(35) {}
};
int main() {
interior_ptr<MyClass> p; // C3833
// OK
MyClass ^ h_MyClass = gcnew MyClass;
interior_ptr<int> i = &(h_MyClass->data);
System::Console::WriteLine(*i);
}
The following sample generates C3833:
// C3833b.cpp
// compile with: /clr /c
ref class G {
public:
int i;
};
int main() {
G ^ pG = gcnew G;
pin_ptr<G> ppG = &pG; // C3833 can't pin a whole object
// OK
pin_ptr<int> ppG2 = &pG->i;
*ppG2 = 54;
int * pi = ppG2;
System::Console::WriteLine(*pi);
System::Console::WriteLine(*ppG2);
*pi = 55;
System::Console::WriteLine(*pi);
System::Console::WriteLine(*ppG2);
*ppG2 = 56;
System::Console::WriteLine(*pi);
System::Console::WriteLine(*ppG2);
}
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