protected and private in C++ and C#

[My4thPersonality]

1st, simple question, is there a protected in C#?

I mean a comparable keyword like the C++ protected, which defines a member
as accessable for decendants, but not for the outside world.

Then, a more complicated question, is privat in C#, then comparable with
protected, or private in C++. Or to say it in other words, if I declare a
member private in C#, can I access it in a decendant class?

[Stefan Simek]

My4thPersonality wrote:

1st, simple question, is there a protected in C#?

I mean a comparable keyword like the C++ protected, which defines a member
as accessable for decendants, but not for the outside world.

Then, a more complicated question, is privat in C#, then comparable with
protected, or private in C++. Or to say it in other words, if I declare a
member private in C#, can I access it in a decendant class?

The protected and private in C# have the same meaning as in C++. C#
extends access modifiers by adding internal and protected internal,
which are equal to public and protected with respect to the module they
appear in and private to the outer world.

[Stefan Simek]

My4thPersonality wrote:

1st, simple question, is there a protected in C#?

I mean a comparable keyword like the C++ protected, which defines a member
as accessable for decendants, but not for the outside world.

Then, a more complicated question, is privat in C#, then comparable with
protected, or private in C++. Or to say it in other words, if I declare a
member private in C#, can I access it in a decendant class?

The protected and private in C# have the same meaning as in C++. C#
extends access modifiers by adding internal and protected internal,
which are equal to public in the module in which they appear and private
or protected respectively to the outer world.

[Jon Skeet [C# MVP]]

Stefan Simek <si**********@triaxis.nospam.sk> wrote:

Then, a more complicated question, is privat in C#, then comparable with
protected, or private in C++. Or to say it in other words, if I declare a
member private in C#, can I access it in a decendant class?

The protected and private in C# have the same meaning as in C++.

Is that strictly true? I *thought* that in C++, you couldn't access the
private members of one instance from another instance (whereas you can
in C#). This is only based on what others have said, however - I
haven't checked the spec.

There's also the concept of private inheritance in C++, but not in C#.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too

[Andreas Mueller]

Jon Skeet [C# MVP] wrote:

Stefan Simek <si**********@triaxis.nospam.sk> wrote:

Then, a more complicated question, is privat in C#, then comparable with
protected, or private in C++. Or to say it in other words, if I declare a
member private in C#, can I access it in a decendant class?

The protected and private in C# have the same meaning as in C++.

Is that strictly true? I *thought* that in C++, you couldn't access the
private members of one instance from another instance (whereas you can
in C#). This is only based on what others have said, however - I
haven't checked the spec.

Yes, you can access the private fields from another instance in C++.
There's also the concept of private inheritance in C++, but not in C#.

HTH,
Andy
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[Jon Skeet [C# MVP]]

Andreas Mueller <[e-mail]> wrote:

Is that strictly true? I *thought* that in C++, you couldn't access the
private members of one instance from another instance (whereas you can
in C#). This is only based on what others have said, however - I
haven't checked the spec.

Yes, you can access the private fields from another instance in C++.

My mistake. It must be another language I'm thinking of... I wonder
which?

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too

[Mike Schilling]

"Jon Skeet [C# MVP]" <sk***@pobox.com> wrote in message
news:MP************************@msnews.microsoft.c om...

Andreas Mueller <[e-mail]> wrote:

> Is that strictly true? I *thought* that in C++, you couldn't access the
> private members of one instance from another instance (whereas you can
> in C#). This is only based on what others have said, however - I
> haven't checked the spec.

Yes, you can access the private fields from another instance in C++.

My mistake. It must be another language I'm thinking of... I wonder
which?

None I know of. In fact, "How come instance 1 can access private members of
instance 2?" seems to be a common newbie question about C#, C++, and Java
alike.

[David Anton]

Actually, C++/CLI has "internal" and also has an equivalent to C#'s protected
internal: "public protected".
--
David Anton
www.tangiblesoftwaresolutions.com
Instant C#: VB to C# converter
Instant VB: C# to VB converter
Instant C++: C# to C++ converter & VB to C++ converter
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"Stefan Simek" wrote:

My4thPersonality wrote:

1st, simple question, is there a protected in C#?

I mean a comparable keyword like the C++ protected, which defines a member
as accessable for decendants, but not for the outside world.

Then, a more complicated question, is privat in C#, then comparable with
protected, or private in C++. Or to say it in other words, if I declare a
member private in C#, can I access it in a decendant class?

The protected and private in C# have the same meaning as in C++. C#
extends access modifiers by adding internal and protected internal,
which are equal to public in the module in which they appear and private
or protected respectively to the outer world.