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I don't see how C++ would return 84??
int x; x = 0
x = 42; x = 42
x++; x = 43
x += --x; == x = x + (--x) == x = 43 + 42 x = 85
Is there something I'm missing??
Admittedly, I haven't done C++ in a while
Nick Seng (the programmer formerly known as Notorious SMC)
God, I pity me! - Phoncible P. Bone
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hmmm..... Shouldn't it be left to right(order of operation) ?
I mean:
x = x + (--x) : At the beginning of this line x is still 43
x = x + (--x) : which would imply that this x is still 43
thus, you would get 85?
[Edit]Something just occured to me, does, --x imply that the incrementer execute before any other operators? [/Edit]
Nick Seng (the programmer formerly known as Notorious SMC)
God, I pity me! - Phoncible P. Bone
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The -- operator has precedence over the += so it goes first makeing x 42 then the += is 42 + 42.
Maybe this is a bug in c#? -- is supposed to go first in c# also.
Maybe it doens't update x until the whole statement is done, and only returns 42 to the statement so you get 43 + 42.
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Hi! I've posted this same question in the Microsoft C# Newsgroups and they said that the operator += has precedence over the -- because C# goes from left to right... (instead of C++ that goes from the right to the left)
So the expression:
x += --x
Would be:
x = --(x + x) = --(43 + 43) = 85
Nice... but weird :P
modified 25-May-20 21:52pm.
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Thanks for the info. I don't know if I agree with that though. Whether you eval from left to right or right to left, you still should evaluate in the proper precedence. The c# spec says that -- has precedence over +=.
If you are interested it is in the spec section 7.2.1
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The decrement operator ( -- ) decrements its operand by 1. The decrement operator can appear before or after its operand:
The first form is a prefix decrement operation. The result of the operation is the value of the operand after it has been decremented.
The second form is a postfix decrement operation. The result of the operation is the value of the operand before it has been decremented.
Bo Hunter
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I receive a NullReference Exception on the entry of this [WebMethod]:
//In constructor:
FileStream fs=new FileStream(@"c:\BHQGUI\temp\Idea.mod",FileMode.Create, FileAccess.Write, FileShare.None);
//
[WebMethod]
public void scrivi(Byte[] byteArray)
{
fs.Write(byteArray,0,256);
}
called by this:
private void ArchiviaServer(object sender, EventArgs arg)
{
FileInfo fileInfo = new FileInfo("c:\\BHQGUI\\temp\\myidea.mod");
FileStream fileReadStream = fileInfo.OpenRead();
Byte[] b = new byte[256];
localhost.db myDb=new localhost.db();
while (fileReadStream.Read(b,0,b.Length) > 0)
{
myDb.scrivi(b);
}
myDb.chiudi();
myDb=null;
}
Anyone could help me? Is Byte[] a wrong type for WebService??
Please help me thanx in advance
Marco
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Uploader wrote:
I receive a NullReference Exception on the entry of this [WebMethod]:
Thats because the filestream is null, not the byte[]. Try making the filestream static to make sure that is the problem, then figure out how you would prefer to handle it.
Hope this helps 
PS: Remember a webservice is only a website with methods.
leppie::AllocCPArticle(Generic DFA State Machine for .NET);
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thanx I made an error, because I declared the filestream as a property of the class, but in the constructor I haven't notice that I'm overwriting it.
myclass{
private Filestream fs;
myclass(){
Filestream fs=........;
}
}
BUT
using WebService my method scrivi(byte[]) doesn't work, instead it works using remote object.
Marco
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Hello all gurus,
I just discovered that one of my tables in my MS Access DB happened to name "Module". Any simple SELECT statement to this table would crash with "E_FAIL: Unspecified Error 80004005" when I do:
...
OleDbReader rd = myOleDbCommand.ExecuteReader(...);
Currently I use:
OleDbConnection con = new OleDbConnection();
con.ConnectionString = "Provider=Microsoft.JET.OLEDB.4.0;" + "data source = " + frmModularDocsSystem.sDBFullPathName;
QUESTION:
Can I use a newer or older version of Microsoft.JET.OLEDB engine? or RDO? or Something else? to get around this weird problem. So, I don't have to rename my "Module" table. Because Changing its name will break an un-measured amount of codes in my existing applications, if that's the last solution.
Thanks a billion $ to you all
Khang Nguyen
PS: or may you have other tricks?
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Can you but [] around the table name like you can in sql server? Try that
Select * from [Module] might work I don't have access on this machine to try it.
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WOW! You're great! It works like a miracle. You saved me. Thanks so much.
Khang Nguyen
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Hi,
I've started writing a program using version 1.0 of the framework, but now I would like to install version 1.1 and start using that. Do I need to do anything special with my application in order to get it to use version 1.1 of the framework instead of version 1.0 ?
Thanks
- monrobot13
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Nope. MS Have done a good job of getting the new version to play nicely with the first. You will need a copy of the latest version of VS though, but you can upgrade for $30.
"Je pense, donc je mange." - Rene Descartes 1689 - Just before his mother put his tea on the table.
Shameless Plug - Distributed Database Transactions in .NET using COM+
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How do you access the volume control in c#? Is there a way to do it w/o using direct x? Any help would be appreciated.
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I'm trying to read a password from the Console and I need it to hide what is being typed. I'm using System.ReadLine() but I can't figure out how to hide what is being typed. There must be simple solution but I can't find it. Any ideas?
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You will have to look at the Win32 Console API, specifically turning on/off echoing, and will you are there colors are a breeze too 
<a TITLE="See my user info" href=http:
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may be using Win32 Old API 
it can be possible !!
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I have an old Win32 legacy app. I’m able to start the process and send key presses to it (via sendmessage) from another app. What I would like to do is remove this program from the taskbar. An ideas?
setting CreateNoWindow=true; does not work
I start the process with this:
mp = new Process();
mp.StartInfo.FileName = AppPath+"\\Win32App.exe";
mp.StartInfo.WindowStyle= ProcessWindowStyle.Minimized;
mp.StartInfo.CreateNoWindow=true;
mp.Start();
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Can anyone explain me what this mean? Is it related to Dispose()?
Make the component implement both deterministic and non-deterministic finalization
"...if you don't want to hear things that piss you off don't piss off other people. SIMPLE." - Steven Hicks
This signature was created by "Code Project Quoter".
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Take a look at the MSDN article "Gozer the Destructor"
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dncscol/html/deepc10192000.asp
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Kant wrote:
deterministic
aka Dispose() done by user
Kant wrote:
non-deterministic
aka ~Class or Finalize() done by GC
<a TITLE="See my user info" href=http:
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leppie wrote:
aka ~Class or Finalize() done by GC
So I have to implement the ~Class for my component or just override the Finalize()?
Make the component implement both deterministic and non-deterministic finalization
"...if you don't want to hear things that piss you off don't piss off other people. SIMPLE." - Steven Hicks
This signature was created by "Code Project Quoter".
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