Compiler Error C3627
Only a value type can be boxed
Only value classes can be boxed.
The following sample generates C3627:
// C3627.cpp
// compile with: /clr:oldSyntax
#using <mscorlib.dll>
__value class vA {
};
__gc class A {
};
int main()
{
A* a;
__box(a); // C3627
// box a value type
vA va;
__box(va);
}