auto_gcroot::operator auto_gcroot

Type-cast operator between auto_gcroot and compatible types.

template<typename _other_type>
operator auto_gcroot<_other_type>();

Return Value

The current auto_gcroot cast to auto_gcroot<_other_type>.

Example

// msl_auto_gcroot_op_auto_gcroot.cpp
// compile with: /clr
#include <msclr\auto_gcroot.h>

using namespace System;
using namespace msclr;

ref class ClassA {
protected:   
   String^ m_s;
public:
   ClassA( String^ s ) : m_s( s ) {}

   virtual void PrintHello() {
      Console::WriteLine( "Hello from {0} A!", m_s );
   }
};

ref class ClassB : ClassA {
public:
   ClassB( String ^ s) : ClassA( s ) {}
   virtual void PrintHello() new {
      Console::WriteLine( "Hello from {0} B!", m_s );
   }
};

int main() {
   auto_gcroot<ClassB^> b = gcnew ClassB("first");
   b->PrintHello();
   auto_gcroot<ClassA^> a = (auto_gcroot<ClassA^>)b;
   a->PrintHello();
}

Hello from first B!
Hello from first A!

Requirements

Header file <msclr\auto_gcroot.h>

Namespace msclr

See Also

Concepts

auto_gcroot Members