I'm working with some C++/CLI code (new syntax) and am trying to declare a generic type and want to set a member variable to it's default.
In C#:
class Class<T>
{
T member = default(T);
}
What's the equivalent in CLI?
generic<typename T> public ref class Class
{
public:
Class() : member(default(T)) // <-- no worky
{
}
private:
T member;
};
C++/CLI is variant of the C++ programming language, modified for Common Language Infrastructure. It has been part of Visual Studio 2005 and later, and provides interoperability with other . NET languages such as C#. Microsoft created C++/CLI to supersede Managed Extensions for C++.
C++ runs directly as binary complied for your hardware. C++ cli is a c++ extension that is used to interface with the MS common language runtime. It complies to IL normally and is executed inside the . net runtime.
C++/CLI is a complete different thing from CLR. One is a language and the other is a VES implementation.
C++/CLI is not deprecated. The Visual C++ team invested in C++/CLI Intellisense in Visual Studio 2012; a feature that was cut from Visual Studio 2010.
Interestingly enough the syntax makes it looks like this: T()
. It does require the addition of a copy constructor.
generic<typename T>
public ref class Class
{
public:
Class() : member(T())
{
}
Class(Class^ c)
{
member = c->member;
}
private:
T member;
};
Edit DOH This works too (been in C# land for so long I forgot that NULL and 0 are the same thing in C++, hence no need for different value and reference type default values):
generic<typename T>
public ref class Class
{
public:
Class() : member(0)
{
}
Class(Class^ c)
{
member = c->member;
}
private:
T member;
};
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