Compartir a través de


How to: Use gcnew to Create Value Types and Use Implicit Boxing

 

The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.

The latest version of this topic can be found at How to: Use gcnew to Create Value Types and Use Implicit Boxing.

Using gcnew on a value type will create a boxed value type, which can then be placed on the managed, garbage-collected heap.

Example

// vcmcppv2_explicit_boxing4.cpp  
// compile with: /clr  
public value class V {  
public:  
   int m_i;  
   V(int i) : m_i(i) {}  
};  
  
public ref struct TC {  
   void do_test(V^ v) {  
      if (v != nullptr)  
         ;  
      else  
         ;  
   }  
};  
  
int main() {  
   V^ v = gcnew V(42);  
   TC^ tc = gcnew TC;  
   tc->do_test(v);  
}  

See Also

Boxing