Re: Reference Types and Value Types

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From: daniel (user_at_example.com)
Date: 09/02/04 

Date: Thu, 02 Sep 2004 16:57:29 -0500

Ahh, thank you Lateralus for the quick reply. I have a quick follow up
question, though:

If a reference type is always passed by reference, then (while stupid
and messy):

<code>
// with a return type this time!
void func1()
{
        SomeType myType = new myType();
        func2(myType);
}
void func2(SomeType myType)
{
        func3(mytype);
}
void func3(SomeType myType)
{
        Console.Write(myType.ToString());
}
</code>

will not cause a substantial amount of increased overhead at all (other
than variables on the stack), because only one object is every created.

Thanks,
-daniel

Lateralus [MCAD] wrote:

> daniel,
> To my knowledge you can't pass a "reference" type by value if you wanted
> to. It is automatically passed by reference. If you have a value type and
> you want to maintain it's value across method calls, you need to pass it by
> reference.
>
> example should print out 12:
>
> private void Test()
> {
> int index = 0;
> Test2(ref index);
> Console.Write(index.ToString());
> }
>
> private void Test2(ref index)
> {
> index = 12;
> }
>

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