"Chad Z. Hower aka Kudzu" <cpub@hower.org> wrote in message
news:Xns9481F180666E5cpub@127.0.0.1...
> Object MyOnject = new Object[0];
>
> What does the [0] signify?

"Joe Mayo [MVP C#]" <jmayo@nospamAtCSharpDashStation.com> wrote in message
news:u8CXx4D6DHA.2576@TK2MSFTNGP11.phx.gbl...
>
>
> "Chad Z. Hower aka Kudzu" <cpub@hower.org> wrote in message
> news:Xns9481F180666E5cpub@127.0.0.1...
> > Object MyOnject = new Object[0];
> >
> > What does the [0] signify?
>
> Hi Chad,
>
> It means you instantiated an array of type object with a Length of zero.
>

> Joe
> --
> http://www.csharp-station.com
>
>

>> What does the [0] signify?
> It means you instantiated an array of type object with a Length of zero.

"Jon Skeet [C# MVP]" <skeet@pobox.com> wrote in message
news:MPG.1a86c5921e09652798a02c@msnews.microsoft.com...
> Daniel O'Connell [C# MVP] <onyxkirx@--NOSPAM--comcast.net> wrote:
> > Which, because it isn't immediately obvious, works because an array of
> > object(object[]) is still derived from object and will assign without
> > complaint.
>
> Indeed. If I saw a line of code like that in production source, I'd
> definitely be suspicious - there'd have to be a good reason for the
> variable not to be declared as object[] instead of object.

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

"Chad Z. Hower aka Kudzu" <cpub@hower.org> wrote in message
news:Xns94827958AD32Bcpub@127.0.0.1...
> Jon Skeet [C# MVP] <skeet@pobox.com> wrote in
> news:MPG.1a86c5921e09652798a02c@msnews.microsoft.com:
> > Indeed. If I saw a line of code like that in production source, I'd
> > definitely be suspicious - there'd have to be a good reason for the
> > variable not to be declared as object[] instead of object.
>
> Well I found it in MSDN in, in sample code. :)
>

> I changed it to Object() anyways. It was only being used for a Monitor and
> nothing else.
>
> I suspet they were trying to save a few bytes, but it just doesnt seem a
> clean approach. Some prior C developer probably.
>
>
> --
> Chad Z. Hower (a.k.a. Kudzu) - http://www.hower.org/Kudzu/
> "Programming is an art form that fights back"
>
>
> ELKNews - Get your free copy at http://www.atozedsoftware.com
>

"Chad Z. Hower aka Kudzu" <cpub@hower.org> wrote in message
news:Xns94828D56EFF68cpub@127.0.0.1...
> "Daniel O'Connell [C# MVP]" <onyxkirx@--NOSPAM--comcast.net> wrote in
> news:uacl72K6DHA.2692@TK2MSFTNGP09.phx.gbl:
> > Which sample was it? Something is very odd about that...
>
> http://msdn.microsoft.com/library/default.asp?url=/library/en-
> us/cpguide/html/cpconASynchronousFileIO.asp
>
> public static Object NumImagesMutex = new Object[0];

>
> This line also looks suspicious:
>
> fs.BeginRead(state.pixels, 0, numPixels, readImageCallback,
> state);
>
> Is it my imagination or is the call back not being referenced correctly?
Such
> has never compiled in my code...

>
>
> --
> Chad Z. Hower (a.k.a. Kudzu) - http://www.hower.org/Kudzu/
> "Programming is an art form that fights back"
>
>
> ELKNews - Get your free copy at http://www.atozedsoftware.com
>

Daniel O'Connell [C# MVP] <onyxkirx@--NOSPAM--comcast.net> wrote:
> Which, because it isn't immediately obvious, works because an array of
> object(object[]) is still derived from object and will assign without
> complaint.

> Indeed. If I saw a line of code like that in production source, I'd
> definitely be suspicious - there'd have to be a good reason for the
> variable not to be declared as object[] instead of object.

> Which sample was it? Something is very odd about that...

> This is really strange, unless there is(was) a bug in object itself that
> I'm not aware of this is a strange construct. An array of type object,
> even with no members probably takes up more memory space than an empty
> object. I really wonder what the point was...

> The callback is ok, although the ease of reading of this code sucks(for
> non-colored code I like a little space inbetween comments and code),
> there is a variable near the top of the method defined as:
> AsyncCallback readImageCallback = new
> AsyncCallback(ReadInImageCallback);

Chad Z. Hower aka Kudzu <cpub@hower.org> wrote:
> > The callback is ok, although the ease of reading of this code sucks(for
> > non-colored code I like a little space inbetween comments and code),
> > there is a variable near the top of the method defined as:
> > AsyncCallback readImageCallback = new
> > AsyncCallback(ReadInImageCallback);
>
> Aah - That I did not see. Thats poor code if you ask me - why would they
> create a variable like that to be used once?

> Also naming them nearly identical, with only really a case differnce and two
> letters is a very poor choice too. I really hate the actualy use of case
> senstivity in C#.

"Chad Z. Hower aka Kudzu" <cpub@hower.org> wrote in message
news:Xns9482E13B0E98Acpub@127.0.0.1...
> "Daniel O'Connell [C# MVP]" <onyxkirx@--NOSPAM--comcast.net> wrote in
> news:#bSctoL6DHA.1020@tk2msftngp13.phx.gbl:
> > This is really strange, unless there is(was) a bug in object itself that
> > I'm not aware of this is a strange construct. An array of type object,
> > even with no members probably takes up more memory space than an empty
> > object. I really wonder what the point was...
>
> You can change it to Object() and it works just fine. Its only used for a
> Monitor lock. I suspect it was some old C coder trying to save some bytes,
> assuming a 0 length array takes less space than an object.
>
> > The callback is ok, although the ease of reading of this code sucks(for
> > non-colored code I like a little space inbetween comments and code),
> > there is a variable near the top of the method defined as:
> > AsyncCallback readImageCallback = new
> > AsyncCallback(ReadInImageCallback);
>
> Aah - That I did not see. Thats poor code if you ask me - why would they
> create a variable like that to be used once?
>
> Also naming them nearly identical, with only really a case differnce and
two
> letters is a very poor choice too. I really hate the actualy use of case
> senstivity in C#.

>
>
>
> --
> Chad Z. Hower (a.k.a. Kudzu) - http://www.hower.org/Kudzu/
> "Programming is an art form that fights back"
>
>
> ELKNews - Get your free copy at http://www.atozedsoftware.com
>