auto_gcroot::operator auto_gcroot
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Type-cast operator between auto_gcroot and compatible types.
Syntax
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