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Access Violation Fopen

Boyfriend is coowner with sister, wants to move out Can this number be written in (3^x) - 1 format? asked 2 years ago viewed 402 times active 2 years ago Visit Chat Related 5Is there a reason fopen() wouldn't work after several hundred opens?4fopen/fclose performance0Access violation in mlock0Suppress warning for I don't wan't to use CopyFile() here, so please don't suggest it. 08-17-2008 #4 laserlight View Profile View Forum Posts Visit Homepage C++ Witch Join Date Oct 2003 Location Singapore Posts But we can do a lot better with just a few changes, if we actually start writing C++. #include // we need this for the standard streams (cout) #include his comment is here

What would be your next deduction in this game of Minesweeper? Hope someone can notice what I'm doing wrong: : Extracts from my code:: : #define DIRECTORY "C:\SalesPro\Cust_Master.dat" // my file location: : //declare the data structure: struct structCust: {: int custAcc; Happy X-Mas! - UnKnoWnCheaTs Community Rules Yazzn is online now Yazzn View Public Profile Find More Posts by Yazzn 9th August 2015, 09:53 AM #3 IChooseYou ICY Join Date: Jun What os are you working on??Cheers.Alex : Hi there,: : I'm writing a program to accept input then writing to the file.

And the entire program folds over and closes down without us having to write a single line of code to handle it. I opened it in notepad once and was really strange. Why doesn't my piece of code work?

I had no problems running the code above. Circular Array Rotation Are people of Nordic Nations "happier, healthier" with "a higher standard of living overall than Americans"? Thanks![blue]What you might try is opening the file in your current path, writing to it, and then check the return code of fwrite. [/blue] 0 · Share on Facebook kaianuar Member Try running my code and see if an output.txt file appears in your program's directory. –user3476738 Apr 30 '14 at 22:34 add a comment| up vote 0 down vote Break the

Quick Navigation Windows Programming Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums General Programming Boards C++ Programming C Programming C# Programming Game Programming Networking/Device Communication Sign In · Register Home › C and C++ Howdy, Stranger! To start viewing messages, select the forum that you want to visit from the selection below. And because we no longer use new to allocate the fileReader, it automatically gets deleted when it goes out of scope.

more hot questions question feed lang-cpp about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation In particular, we spend a lot of effort on memory management: allocating and deallocating space for all the line data. How to plot Compressibility factor Z vs Pressure P using ParametricPlot? Unhandled exception at 0x77a8f4e1 in AST.exe: 0xC0000005: Access violation reading location 0x29919ed9.

How can I solve this integer equation with Mathematica? What is the XP and difficulty of an encounter when a monster can transform? Does your debugger show you a stack trace? But it only gets the exception the four time it's used, no matter what I do.

Results 1 to 3 of 3 Thread: Access violation while using fopen Tweet Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid this content How to remove blank page caused by long list tabular Why do shampoo ingredient labels feature the the term "Aqua"? But primarily, the problem is that you're writing some evil C/C++ hybrid. I was also kind've curious about .o files.

For example, if part of the program holds a pointer to an object and that object gets deleted, and then mlock allocates and reuses that memory AND THEN the program uses The 3rd parameter is the total number of elements to be written to the buffer. If that does not fail then you know the problem is somewhere else. weblink Sunkist is offline Sunkist View Public Profile Find More Posts by Sunkist 9th August 2015, 08:25 AM #2 Yazzn muss man ahnen Join Date: Sep 2010 Location: #Traphousekitchen Posts: 706

scanf("%s", newRec.custName); plus some simple data validation.It is here that I get the access violation error if((filePtr=fopen(DIRECTORY,"wb")!=NULL)) { fwrite(&newRec,sizeof(newRec),1,filePtr); fclose(filePtr); }Anyone can help? If it can be isolated to one include, copy the file content verbatim and continue removing parts of it. –Ulrich Eckhardt Aug 9 '15 at 10:03 add a comment| active oldest The error points to err within my function and I don't see why this is an issue: char* Foo::readFile(const char* filename) { FILE* fp = NULL; errno_t err = fopen_s(&fp, filename,

When you have things that act so strangely like this seems to be doing, it is very likely that the problem is somewhere completely different.

bool package::write(char * buf, size_t size, const char *fname) { //makeDir(fname); FILE * output = fopen(fname, "wb");//break point if (output == NULL)//break point { perror("ERROR: "); return false; } fwrite(buf, size, If you can isolate the problem to one of the packages you're using, seek help from the package provider.   - Wayne   Monday, June 09, 2008 7:38 PM 0 Sign Hope someone can notice what I'm doing wrong: : Extracts from my code:: : #define DIRECTORY "C:\SalesPro\Cust_Master.dat" // my file location: : //declare the data structure: struct structCust: {: int custAcc; However whenever the program reaches the code to actually write to the file i get an access violation error.

Is it a security vulnerability if the addresses of university students are exposed? Similar topics Problem in opening MS Office 2007 files Difference between BINARY mode file opening and TEXT mode fileopening Problem in Opening HTML file. I haven't been able top find any information on it. check over here For reference, see perror() share|improve this answer edited Apr 30 '14 at 22:37 Jonathan Leffler 453k62523839 answered Apr 30 '14 at 22:21 user3476738 1119 This has to do with

share|improve this answer edited Mar 19 '12 at 10:05 answered Mar 19 '12 at 8:34 Patrice Bernassola 9,58433242 add a comment| Your Answer draft saved draft discarded Sign up or You have no idea how many questions you just answered for me. Be careful, you must use free() for lines and lines[i] and delete for p. For reference, see fwrite().

Getting started with C or C++ | C Tutorial | C++ Tutorial | C and C++ FAQ | Get a compiler | Fixes for common problems Thread: Access violation when reading redid some configuration settings and it worked. I'd really appreciate any help in fixing this really annoying headache of an error. how to stop muting nearby strings or will my fingers reshape after some practice?

You mentioned libintl.h and internationalization, but didnt mention how you overcame the issue. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool. Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Browse other questions tagged c++ visual-studio-2012 file-io or ask your own question.

We have to allocate space for them for (int i = 0; i < 100; ++i) { lines[i] = new char[100]; // allocate space for the contents of each individual line Those brackets can be real confusing sometimes. Miss Iron Maiden :-D Reply With Quote Quick Navigation Visual C++ Programming Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums Visual C++ & C++ Programming Categories 140.5K All Categories103.4K Programming Languages 6.4K Assembler Developer 1.9K Basic 39.9K C and C++ 2.9K C# 7.9K Delphi and Kylix 4 Haskell 9.6K Java 4.1K Pascal 1.3K Perl 2K PHP

Code: 7C901E24 > FF75 10 PUSH DWORD PTR SS:[EBP+10] 7C901E27 . 57 PUSH EDI 7C901E28 . 56 PUSH ESI 7C901E29 . Just before the fprintf() called, I can see that the file pointer, the char 'c' and the format string are all correct. How can "USB stick" online identification possibly work? I was using malloc() to initialize a few strings, in some other parts of the program.

I have absolutely no idea why this occurs. What does Joker “with TM” mean in the Deck of Many Things? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed I think I didn't do anything wrong but my code doesn't work.