Compile error help byte array

**AMP** · Sep 10 '06, 04:05 PM

Re: Compile error help byte array

Actually I changed memmove to ARRAY.COPY. (Sorry, Im porting a c
program to c#)
AMP wrote:

Hello,
I have the following code:
background:
const int MAX_DATA_BYTES= 250;
byte[] blkin =new byte[MAX_DATA_BYTES]; /* Receive buffer */
>
and I use it in the following:
memmove(blkout[1], blkout[0], len);
>
but i get the following error:
Cannot apply indexing with [] to an expression of type 'byte'
>
What am i doing wrong?
Thanks
mike

**AMP** · Sep 10 '06, 04:05 PM

Re: Compile error help byte array- Modified

Let me rewrite this:
Hello,
I have the following code:
background:
const int MAX_DATA_BYTES= 250;
byte[] blkout =new byte[MAX_DATA_BYTES]; /* Receive buffer */

and I use it in the following:
ARRAY.COPY(blko ut[1], blkout[0], len);

but i get the following error:
Cannot apply indexing with [] to an expression of type 'byte'

**Nicholas Paldino [.NET/C# MVP]** · Sep 10 '06, 04:05 PM

Re: Compile error help byte array

Mike,

You are showing the declaration for the blkin variable, but your call on
the indexer is for the blkout variable. I would take a look at that.

Hope this helps.

--
- Nicholas Paldino [.NET/C# MVP]
- mvp@spam.guard. caspershouse.co m

"AMP" <ampeloso@gmail .comwrote in message
news:1157902567 .207678.114620@ i3g2000cwc.goog legroups.com...

Hello,
I have the following code:
background:
const int MAX_DATA_BYTES= 250;
byte[] blkin =new byte[MAX_DATA_BYTES]; /* Receive buffer */
>
and I use it in the following:
memmove(blkout[1], blkout[0], len);
>
but i get the following error:
Cannot apply indexing with [] to an expression of type 'byte'
>
What am i doing wrong?
Thanks
mike
>

**Willy Denoyette [MVP]** · Sep 10 '06, 04:35 PM

Re: Compile error help byte array- Modified

Take a look at the Buffer.BlockCop y method for this.

Willy.

"AMP" <ampeloso@gmail .comwrote in message
news:1157904894 .095943.83180@p 79g2000cwp.goog legroups.com...
| Let me rewrite this:
| Hello,
| I have the following code:
| background:
| const int MAX_DATA_BYTES= 250;
| byte[] blkout =new byte[MAX_DATA_BYTES]; /* Receive buffer */
|
| and I use it in the following:
| ARRAY.COPY(blko ut[1], blkout[0], len);
|
| but i get the following error:
| Cannot apply indexing with [] to an expression of type 'byte'
|

**AMP** · Sep 10 '06, 07:45 PM

Re: Compile error help byte array- Modified

Still not getting anywhere.
I need some help.Please
Thanks
Mike

Willy Denoyette [MVP] wrote:

Take a look at the Buffer.BlockCop y method for this.
>
Willy.
>
"AMP" <ampeloso@gmail .comwrote in message
news:1157904894 .095943.83180@p 79g2000cwp.goog legroups.com...
| Let me rewrite this:
| Hello,
| I have the following code:
| background:
| const int MAX_DATA_BYTES= 250;
| byte[] blkout =new byte[MAX_DATA_BYTES]; /* Receive buffer */
|
| and I use it in the following:
| ARRAY.COPY(blko ut[1], blkout[0], len);
|
| but i get the following error:
| Cannot apply indexing with [] to an expression of type 'byte'
|

**Willy Denoyette [MVP]** · Sep 10 '06, 08:05 PM

Re: Compile error help byte array- Modified

"AMP" <ampeloso@gmail .comwrote in message
news:1157917907 .969618.171290@ i3g2000cwc.goog legroups.com...
| Still not getting anywhere.
| I need some help.Please
| Thanks
| Mike
|

What problem do you have using BlockCopy? Please post what you have done so
far.

Here's a usage sample:
byte[] arr1 = {1, 2, 3, 4, 5};
byte[] arr2 = {10, 11, 12, 13, 14, 15};
// copy 5 bytes from arr1 starting at offset 0 to arr2 starting at offset 1
Buffer.BlockCop y( arr1, 0, arr2, 1, 5);
// result: arr2 = 10, 1, 2, 3, 4, 5

Willy.

**Rudy Velthuis** · Sep 10 '06, 08:35 PM

Re: Compile error help byte array- Modified

At 18:14:54, 10.09.2006, AMP wrote:

Let me rewrite this:
Hello,
I have the following code:
background:
const int MAX_DATA_BYTES= 250;
byte[] blkout =new byte[MAX_DATA_BYTES]; /* Receive buffer */
>
and I use it in the following:
ARRAY.COPY(blko ut[1], blkout[0], len);

Array.Copy has a different parameter set. Assuming the original C code
was:

memmove(blkout + 1, blkout, len);

or:

memmove(&blkout[1], &blkout[0], len);

then try this:

Array.Copy(blko ut, 0, blkout, 1, len);

Where blkout[0] is the source and blkout[1] is the destination.

--
Rudy Velthuis http://rvelthuis.de/

"If you're sick and tired of the politics of cynicism and polls
and principles, come and join this campaign." -- George W. Bush

**AMP** · Sep 10 '06, 08:55 PM

Re: Compile error help byte array- Modified

Yes the original code was:
memmove(&blkout[1], &blkout[0], len);

so why doesnt my code work??????????? ?

const int MAX_DATA_BYTES= 250;
byte[] blkout=new byte[MAX_DATA_BYTES]; /* Transmit buffer */
Array.Copy(blko ut,1, blkout,0, len);

what i'm getting now is:
Error 10 Argument '1': cannot convert from 'byte' to
'System.Array' M:\Rocket-CSharp\Rocket\R ocket\Form1.cs 466 20 Rocket
And
Error 11 Argument '3': cannot convert from 'byte' to
'System.Array' M:\Rocket-CSharp\Rocket\R ocket\Form1.cs 466 30 Rocket

And the next line in the program is:
blkout[0]= 0xFF;
and i get the error:

Error 12 Cannot apply indexing with [] to an expression of type
'byte' M:\Rocket-CSharp\Rocket\R ocket\Form1.cs 467 9 Rocket

I dont get it.............

Thanks Again
Mike

Rudy Velthuis wrote:

At 18:14:54, 10.09.2006, AMP wrote:
>

Let me rewrite this:
Hello,
I have the following code:
background:
const int MAX_DATA_BYTES= 250;
byte[] blkout =new byte[MAX_DATA_BYTES]; /* Receive buffer */

and I use it in the following:
ARRAY.COPY(blko ut[1], blkout[0], len);

>
Array.Copy has a different parameter set. Assuming the original C code
was:
>
memmove(blkout + 1, blkout, len);
>
or:
>
memmove(&blkout[1], &blkout[0], len);
>
then try this:
>
Array.Copy(blko ut, 0, blkout, 1, len);
>
Where blkout[0] is the source and blkout[1] is the destination.
>
--
Rudy Velthuis http://rvelthuis.de/
>
"If you're sick and tired of the politics of cynicism and polls
and principles, come and join this campaign." -- George W. Bush

**Jon Skeet [C# MVP]** · Sep 11 '06, 06:15 AM

Re: Compile error help byte array- Modified

AMP <ampeloso@gmail .comwrote:

Yes the original code was:
memmove(&blkout[1], &blkout[0], len);
>
so why doesnt my code work??????????? ?
>
const int MAX_DATA_BYTES= 250;
byte[] blkout=new byte[MAX_DATA_BYTES]; /* Transmit buffer */
Array.Copy(blko ut,1, blkout,0, len);

The above code compiles fine. The problem was when you were using

blkout[1] or blkout[0], which each evaluate to a byte value, not a byte
array.

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

**AMP** · Sep 11 '06, 12:55 PM

Re: Compile error help byte array- Modified

I managed to fix that one,(Many Thanks) but I have one that looks like
this:
memcpy(&dataOut[4], blkout, len)

The "blkout" has no index.
Any Suggestions?

Jon wrote:

AMP <ampeloso@gmail .comwrote:

Yes the original code was:
memmove(&blkout[1], &blkout[0], len);

so why doesnt my code work??????????? ?

const int MAX_DATA_BYTES= 250;
byte[] blkout=new byte[MAX_DATA_BYTES]; /* Transmit buffer */
Array.Copy(blko ut,1, blkout,0, len);

>
The above code compiles fine. The problem was when you were using
>
blkout[1] or blkout[0], which each evaluate to a byte value, not a byte
array.
>
--
Jon Skeet - <skeet@pobox.co m>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too

**Jon Skeet [C# MVP]** · Sep 11 '06, 01:35 PM

Re: Compile error help byte array- Modified

AMP wrote:

I managed to fix that one,(Many Thanks) but I have one that looks like
this:
memcpy(&dataOut[4], blkout, len)
>
The "blkout" has no index.
Any Suggestions?

That's basically

Array.Copy (dataOut, 4, blkout, 0, len);

(or possibly the other way round - I can't remember which way round the
arguments go in memcpy).

Jon

**Arne Vajhøj** · Sep 11 '06, 06:05 PM

Re: Compile error help byte array- Modified

Jon Skeet [C# MVP] wrote:

AMP wrote:

>I managed to fix that one,(Many Thanks) but I have one that looks like
>this:
>memcpy(&dataOu t[4], blkout, len)
>>
>The "blkout" has no index.
>Any Suggestions?

>
That's basically
>
Array.Copy (dataOut, 4, blkout, 0, len);
>
(or possibly the other way round - I can't remember which way round the
arguments go in memcpy).

memcpy is <- !

Arne

Compile error help byte array

Compile error help byte array

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