This piece of C# code does not produce any overflow exception.wordsize is a constant equal to 32.the x and y can be very big at the computation time. So big that long or decimal even cant hold. But C# handles the problem even the value of the variables exceeds its limits.The computation gives thr right result.(I dont know how it does it)
[Code]...
I need some guidance on a little program I'm making (one that I thought would take a couple of hours from start to finish, it's been days now ...) that determines all of the proper divisors of any given number up to the maximum value of a UInt32.
View 8 RepliesI get an 'overflow exception was unhandled' error in the following code.
It is a function to combine 2 bytes into a 16 bit integer.
Private Function MakeInt16(HiVal As Byte, LoVal As Byte) As Short
Dim h As UInt32 = HiVal * CUInt(256) + LoVal
Return CShort(h)
End Function
I'm writing a CPU emulator in VB .NET.It's important to keep the code tight for maximum performance.
The following test code shows an example of my issue[code]...
Now I know I can use a long, and mask the value with &HFFFF, and I know I can add exception handling to the code. but remember, this is an emulator and more code = less performance.
I have the following code for finding factorials:
Private Shared Function Factorial(ByVal Number As Long) As Long
If Number = 0 Then
Return 1
Else
Return Number * Factorial(Number - 1)
End If
End Function
It usually results in an overflow. It only works if I start with something small like 4. I have to work with starting numbers such as 30-60. I thought changing the value type to LONG would prevent this problem. This is VB.net just for reference.
I have created a console application to run through the db (about 22K )records and update some values nightly. I've added an email to myself on any errors. When running the task I get about 500 emails saying:
"Overflow" (which is what's returned by : exception.Message)
What does it mean? Is it running through the db too fast?
Here is my code:
For Each dataRow As DataRow In dt.Rows
curries = 0
baseDate = Nothing
sourceID = 0
[Code] ......
I have a class as below in VB.NET. The issue is class calling itself. So vb.NET throwing Stock Overflow exception. But the same class is working fine in VB6 version of code in VB6.How to resolve this issue?
[code]...
I'm attempting to insert rows form a ListView into an access DB. Here is the code from the Finish button. From line 55 down is my trouble area.
[Code]...
Any simple way to add commas to large numbers (example: instead of "123456789" as my text converted {and loaded into a text box} output of a calculation, I want to see "123,456,789")?
View 11 Replies[Code]...
The loop will run about 3 times then overflow. I guess no matter what u do xor will result in Byte,Integer or Long. CDec(Key) will not work I need a way to bypass this so i can Xor large numbers.
How can I calculate 2^ 3333 in vb.net it calculates up to 2^ 60 it says infinite for this calculation. Is tehre any way to work with really large numbers?
View 1 Replieshow to get the mod of large numbers? for example: (3214282912345698765432161182 mod 97)
View 10 RepliesI want a method of dealing with very, very, very big numbers (potentially a million digits). It is very cumbersome to deal with very big numbers in VB, would another language perhaps be better for that?
View 10 RepliesI have been trying to make a program to solve for the x intercepts of a quadratic formula and have gotten this far. Whenever i debug, it says "A first chance exception of type 'System.OverflowException'" It seems to be with the code shown in bold.
[Code]...
I am retrieving a large BLOB and keep getting an Out Of Memory Exception. It occurs when I use a SqlDataReader to either check if the column is NULL, or if I try to read it and assign it to a Byte type of parameter, or if I use Response.BinaryWrite.
View 2 RepliesHow is it possible to deal with incredibly long (large) numbers in vb.net?I am working on Problem 25 in Project Euler, and my program cannot handle these computations.Is there a data type that can handle thousands of digits?
View 3 RepliesFor example, to calculate this:(22 ^ 29) Mod 57Supposedly there is a way to get around overflows and do these calculations, but I can't find much online. Now, the person who said this was doing VBA in Excel and said that there was about 4 lines of code which could handle the overflow so it wouldn't happen.
View 4 RepliesI am currently trying to create a program to list a large group of numbers for me. My final goal is to have every 2, 3, 4, ..., and 9 digit number containing only "1" "2" and "3". I thought I would go about this by using the following VB.NET program and then copying it into a text editor, and using find & replace to eliminate all other numbers.
Public Class Form1
Dim Start As Integer = 333333333
Dim Counter As Integer = 333333333
[Code].....
it fails due to the massive amount of processing that needs to take place. However, adding the intervals requires a great deal of time for each number to be displayed without any crashes.
Is there some way (in VB.NEt or another language) to get the number list I want in a short (an hour or less) amount of time?
I need to count a large amount numbers in short time.As a result the CPU jumps to 40-60% on 4-core PC.Which is extremely high.I have any idea that will lock up the thread for some time, but not actually slow or reduce the amount of files that are allowed to be counted per a giving time period.
Vb.net
Application.DoEvents()
Threading.Thread.Sleep(1000)
I am facing an amazing problem in my application. On my Developement server when I am running my application, then there is one function where I am trying to put whole stringbuilder contents in a string object. This Function is used for paging the reports.For that I am using a method of Stringbuilder.tostring() and when I chek the value of this statement (stringbuilder.tostring()) it shows no such interface is supported, which later on throws exception of system is out of memory. Here i am using .net 2.0 framework and sql server 2005 database.But when I run the application on stagging server then there is no such exception thrown.[code]
View 3 RepliesWith the shape of really large characters such as numbers and alphabetic characters + others, is there a way to get that shape as a REGION please?Imagine a really fat snake forming the letter S or two rectangles placed together to form a large letter L or a T like the shapes in TETRIS.
1) Does anyone know of anything in VB.Net that can translate such shapes into a System. Drawing.Region or know of a project elsewhere that achieves this please?
2) While I'm on the subject, how would you SCALE UP / DOWN a System.Drawing.Region please? How would you work out the Transform Matrix required please?
I'm using EPPlus 2.9.0.1 with Visual Basic.I have a DataTable with 35 Rows and 4 Columns and the code below:[code]When method 'LoadFromDataTable' is called, I get an ArgumentException (Negative row and Columns numbers are not allowed). I don't have negative numbers in row or column numbers, as far I know.
View 1 RepliesI want to write a program to do Markov chain, but my states are quite large. First of all I calculate all the transition probabilities and revenues for all states(1381860 total states), and store in a multidimensional array. Public RevArr(0 To 9, 0 To 750, 0 To 282) As Long
After that the iteration of markov chain should use these as inputs to calculate the steady-state probabilities. But when I try to run the main code I got this error.Exception of type 'System.OutOfMemoryException' was thrown.
The following is the declaration of second array I add just another dimension for storing all the iterations, but I get this error. Dim stateprob(IT + 1, 0 To 9, 0 To 750, 0 To 282) As single
It is possible to catch an exception and throw a new exception which wraps the first exception as an inner exception: [URL] Also, if I call a function and it throws a certain error, but I catch it, will the calling code's catch handler execute? If so, and it is of a higher exception type, is this not wrapping the exception? eg I can throw exception ex of type IndexOutOfRange, log it but rethrow, catch a higher up exception and do something, or I can throw a new exception and wrap an inner exception like:
View 1 RepliesWhat I want to know is that in VB.net is it possible to get a stack overflow, and if so how is it caused. What I mean is, what sort of written code would cause a stack to overflow.
View 2 RepliesI was wondering, in a toolstrip there is an overflow option
View 3 RepliesI've never seen this error before; and apparently (According to DIC) the number would have be bigger than -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807, to this this exception (I'm using an Integer, but I've tried Int64, and the same thing happens).
This is where the exception is being thrown:
Dim localPort As Integer = (tcpRow__1.localPort1 << 8) + (tcpRow__1.localPort2) + (tcpRow__1.localPort3 << 24) + (tcpRow__1.localPort4 << 16)
Full Code (Method)
[CODE]...
I highly doubt that that the integer that is being parsed back is greater than, either of those numbers listed above. I've tried using Int64, and even removing the << operator, but it's still throwing this exception.
I need to make some big multiplications for cryptographic reasons in vb.net and overflow the variable as C,C++ and C# does. I have disabled the check of overflow at the vb.net project but when i an doing those multiplications i get as a result 1.#INF
ex. in c:
z^y= 0xFFFFFFFF ^ 0x000003FC= 0xFFFFFC03
in vb.net:
z^y= 0xFFFFFFFF ^ 0x000003FC= 1.#INF
I am getting an overflow somewhere while populating my database.The number of records inserted is different every time I get the error and I have been unable to trace where it is coming from.
View 7 Repliesthis exception gets raised on a standard dim command???
Public Sub Life(ByVal AnyEvent As Object) Dim myNewLife As New Life Dim Happiness As New Collection Happiness.Add(AnyEvent) myNewLife.Experience(Happiness) End Sub
[code].....