passing object reference to the method

[puzzlecracker]

Say I pass an object of a class (reference value I suppose) to a
method, and I want to pass it by reference. Do I need to preappend
it with ref.

public interface IFoo{}

public class Foo:IFoo{

}

void FromHere()
{

Foo f=new Foo();
Here(ref f);

}

void Here(ref IFoo f )
{
//do something with f
}

Is ref redundant or error-prone. In my scenerio I have a lot of
overload for Here-like function,
and compiler screams that it cannot convert IFoo to char (latter
beeing void Here(ref char c) )


Thanks

[Pete Becker]

Re: passing object reference to the method

On 2008-09-30 11:51:35 -0400, puzzlecracker <ironsel2000@gm ail.comsaid:

Say I pass an object of a class (reference value I suppose) to a
method, and I want to pass it by reference. Do I need to preappend
it with ref.
>
public interface IFoo{}
>
public class Foo:IFoo{
>
}
>
void FromHere()
{
>
Foo f=new Foo();
Here(ref f);
>
}
>
void Here(ref IFoo f )
{
//do something with f
}
>
Is ref redundant or error-prone. In my scenerio I have a lot of
overload for Here-like function,
and compiler screams that it cannot convert IFoo to char (latter
beeing void Here(ref char c) )
>

This usage of ref is not part of standard C++. If a function takes an
argument by reference that argument is marked as a reference like this:

void Here(IFoo& f)

and it's called with the object:

Foo f;
Here(f);

Note that this is different from what the above code is doing, since
Foo f= new Foo() creates a pointer. I have no idea what the meaning of
those 'ref' decorations is.

--
Pete
Roundhouse Consulting, Ltd. (www.versatilecoding.com) Author of "The
Standard C++ Library Extensions: a Tutorial and Reference
(www.petebecker.com/tr1book)

[Obnoxious User]

Re: passing object reference to the method

On Tue, 30 Sep 2008 08:51:35 -0700, puzzlecracker wrote:

Say I pass an object of a class (reference value I suppose) to a method,
and I want to pass it by reference. Do I need to preappend it with
ref.
>
public interface IFoo{}
>
public class Foo:IFoo{
>
}
>
void FromHere()
{
>
Foo f=new Foo();
Here(ref f);
>
}
>
void Here(ref IFoo f )
{
//do something with f
}
>
Is ref redundant or error-prone. In my scenerio I have a lot of
overload for Here-like function,
and compiler screams that it cannot convert IFoo to char (latter
beeing void Here(ref char c) )
>

Are your sure this is C++? Most likely CLI/C++ or some
other Microsoft managed version.

--
OU
Remember 18th of June 2008, Democracy died that afternoon.

http://frapedia.se/wiki/Information_in_English

[puzzlecracker]

Re: passing object reference to the method

On Sep 30, 11:58 am, Obnoxious User <O...@127.0.0.1 wrote:

On Tue, 30 Sep 2008 08:51:35 -0700, puzzlecracker wrote:

Say I pass an object of a class (reference value I suppose) to a method,
and  I want to pass it by reference. Do  I need to preappend it with
ref.

>

public interface IFoo{}

>

public class Foo:IFoo{

>

}

>

void FromHere()
{

>

     Foo f=new Foo();
     Here(ref f);

>

}

>

void Here(ref IFoo f )
{
     //do something with f
}

>

Is ref redundant or error-prone.  In my scenerio I have a lot of
overload for Here-like function,
 and compiler screams that it cannot convert IFoo to char (latter
beeing void Here(ref char c) )

>
Are your sure this is C++? Most likely CLI/C++ or some
other Microsoft managed version.
>
--
OU
Remember 18th of June 2008, Democracy died that afternoon.http://frapedia..se/wiki/Information_in_English

Guys, It's csharp. I accidentally post this question here. It's now
reposted to the appropriate group.