473,693 Members | 2,832 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Access violation in C++ Borland Builder

5 New Member
I am working with Borland C++ builder and got this error message:

Debugger Exception Notification

Project Project1.exe raised exception class EAccessViolatio n with message 'access violation at address 00404F6A in module 'Project.exe'. Read of address 00000022'. Process stopped. Use Step or Run to continue.

What does it mean and how can I get rid of it?
Sep 4 '06 #1
2 12139
Banfa
9,065 Recognized Expert Moderator Expert
I don't know, but most of this type of problem are cause by either trying to dereference a pointer that does not have a good value or by accessing an array index in an array that is larger than the array was defined with.

e.g.

[code]

int array[5];
char *p = (char *)2; // Assuming 2 is an invalid pointer value

*p = 7; // Possible exception invalid deference of a pointer

array[5] = 6; // Out of bounds array access, possible exception
Sep 4 '06 #2
coss
5 New Member
I believe it`s not that. To give you a better view what`s going on I`ll explain when it occurs:
My program uses shortest path algorithm, for example it seeks for a shortest way between 2 cities. When cities are close to each other, it works fine. But when I enter cities with a bigger distance between them, this error occurs. In my opinion program cannot allocate enough memory for more complicated operation. I`m a very beginner of C++, that`s why I`m not sure if I am right. Is there any way I could fix it?
Sep 5 '06 #3

Sign in to post your reply or Sign up for a free account.

Similar topics

5
2764
by: Steven O. | last post by:
First, sorry if by some chance I am not posting to the correct newsgroups, these seemed to be the most applicable to my question (see disclaimer at end of post for further comments....). Started with the Borland web site, and it didn't answer my questions, so I hope someone here will be kind enough to reply. I took a few courses on C++ using Microsoft Visual C++, and then taught myself MFC for GUI design -- an exercise akin to using...
11
2127
by: TGF | last post by:
I am wondering if it is feasible to use .NET for applications that have to be very fast. We have a few applications that are blazingly fast, written in Borland C++ using Borland C++ Builder. We would like to port over to ..NET, but some of the test models we have developed are MUCH, MUCH slower than it's Borland counterpart. Is this due to the .NET Framework and the JIT? Or is it something we should be looking for in the project...
49
3187
by: Relaxin | last post by:
It is just me or has MS created some of the worst ways to access and display data? You can use a DataSet, but if you want to sort or filter the data to must use a DataView which is created from a DataSet. But, if you sort by using the Grid (clicking the header) you can no longer use the DataSet (or maybe the DataView, if that is what you are using) to locate the record that the user has selected!!
15
3763
by: Chris | last post by:
I am just beginning programming again and need a bit of advice. I have both Visual C++ 6.0 Standard Edition and Borland C++ Builder 6. Of these two which do you consider the best for programming windows programs (not the DOS style program). I have had a quick look at both of these and Borland seems to have a lot more components (Buttons, Forms etc) than Microsoft Visual C++. Does Visual C++ have these components easily accesable. Chris.
24
3810
by: serdar | last post by:
Hi. Does anybody say that what is better borland c++ or visual c++? Which compiler does have more help?
0
3098
by: Xproblem | last post by:
FTP Client Engine for C/C++ 2.4 Screenshot - Soft.comFTP Client Engine for C/C++ 2.4. ... System Requirements: Windows C/C++ compiler - Microsoft operating system: Windows 95, Windows 98, Windows ME, ... www.soft30.com/screen-70-11625.htm - 31k - Cached - Similar pages C++ Server Pages 1.6 - Soft.comC++ Server Pages (CSP) allows developers to build Dynamic Web Pages and Web ... Existing C++ projects can be ported to the Web by simply...
22
2225
by: smartwolf agassi via DotNetMonster.com | last post by:
I'm a C# language learner. I want to know which IDE is better for C# programing, Borland C#Builder or VS.net 2003? -- Message posted via http://www.dotnetmonster.com
17
7236
by: Fabry | last post by:
Hi All, I'm new of this group and I do not know if this is the correct group for my question. I have a DLL with its export library (.lib) wrote in Borland C++ 6. In borland everything is OK and I am able to include the lib and use the class that i have exported creating an instance with new etc... I would like to export this class in microsoft VC++ using the same .lib file. Obviously it doesn' t work.
2
3220
by: gbasilveira | last post by:
Hello all. for all the tay long I have been having this problem and I have beed surfing all the web for help, but I can't find a solution. I am working on a project to open INI Files all the code is done and working, but when I try to use any of the two functions for file controlling (Open and Save) the same error apeers and it is the most important of corse lol... So, I am working with Borland C++ Builder 6 (unfortunatly this program...
0
8611
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
8549
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
1
8815
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
7643
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
1
6475
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
5824
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
4332
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
0
4565
by: adsilva | last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
1
2989
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.