Re: pointer c++//C#

From:

SG <s.gesemann@gmail.com>

Newsgroups:

comp.lang.c++

Date:

Sun, 6 Dec 2009 14:48:06 -0800 (PST)

Message-ID:

<8e3a01a7-f208-41c6-ad63-d92d1fd02a6b@f10g2000vbl.googlegroups.com>

On 6 Dez., 23:04, Adrian Petrescu <apetr...@gmail.com> wrote:

On Thu, 03 Dec 2009 12:28:20 -0800, Joshua Maurice wrote:

[...]
This a very anal, but important type. Sometimes I see silly discussions
about Java when people write bad code, believing that Java has pass by
reference semantics, when it does not. It has pass by value semantics,
except that most values are "references", aka pointers. The same is true
for C#.

What you say is only true for primitive types in Java (int, double, char,
etc) and Strings.

No, it's not. Every "non-primitive" type In Java is a reference type
and references are passed by value. If you think otherwise chances are
you don't distinguish between references and the objects references
refer to.

As soon as you start passing Objects around

That's the point. You don't "pass objects around". You pass references
around -- by value that is. No variable lets you hold an object
directly (I'm using Java's definition of the term "object" here which
only applies to class objects, arrays and interface objects).

Cheers,
SG