debug version won't initialize

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- Previous
  - 1
    - vcbuild vs. Visual Studio Hi all, first off, apologies if this is not the right group for my query. (Maybe someone can direct me to the proper group.) I have a very puzzling problem with a large project I am building. The project builds fine in Visual Studio 8 and 9, but when I use vcbuild at the command line, the linker complains about missing routines. (I thought this was impossible.) This occurs in only one of the projects. I played with this for a week now, and I am getting nowhere. Now I have an even more perplexing problem. The project leader wants to use the command vcbuild /u This creates a problem in *every* project, with the linker complaining =FF_/ LIB : fatal error LNK1181: cannot open input file "=FF_/" The input file is rendered as "~_/" when I open the log file in wordpad and as "=FF=FE/" in buildLog.html. I am quite certain that these characters do not appear in my environment variables, or anywhere in the vcproj files. What is worse, these symptoms only show up when I use vcbuild at the command prompt. I can build the projects just fine inside of Visual Studio. What am I missing? Is there anything else I could be trying? Thanks a million. gus gassmann Tag: debug version won't initialize Tag: 293196
  - 2
    - Linking error in mixed code Hi all, I have a .NET application which needs to use some Win APIs. I set the linker option (of VC++ .NET 2008 Express) to '\clr' to use mixed code and added the following line of code: ... #pragma unmanaged namespace UnManagedFuncs { using namespace System::Runtime::InteropServices; [DllImport("user32", EntryPoint = "SetClipboardViewer", CharSet = CharSet::Unicode)] extern "C" long __cdecl SetClipboardViewer(void* hWnd); [DllImport("user32", EntryPoint = "SetWindowLong", CharSet = CharSet::Unicode)] extern "C" long __cdecl SetWindowLongW(void* hWnd, int nIndex, long dwNewLong); [DllImport("user32", EntryPoint = "CallWindowProc", CharSet = CharSet::Unicode)] extern "C" long __cdecl CallWindowProcW(long* lpPrevWndFunc, void* hWnd, unsigned int uMsg, unsigned int wParam, long lParam ); ... } #pragma managed namespace MyApp { ... private: System::Void frmMain_Load(System::Object^ sender, System::EventArgs^ e) { // Register this window to receive 'clipboard contents changed' event UnManagedFuncs::SetClipboardViewer((void*)this->Handle); UnManagedFuncs::HookWindow((void*)this- >Handle); } } I get the following linker errors: ScratchBook.obj : error LNK2019: unresolved external symbol _CallWindowProcW referenced in function _UnManagedWinProc ScratchBook.obj : error LNK2019: unresolved external symbol _SetWindowLongW referenced in function "void __cdecl UnManagedFuncs::HookWindow(void *)" (? HookWindow@UnManagedFuncs@@YAXPAX@Z) What is wrong? Tag: debug version won't initialize Tag: 293186
  - 3
    - Debug vs Release mode - memory leak Hi all, I am able to release the resources (CStringArray objects) in debug mode. But, not in Release mode. Any project settings or compiler options are required? Thanks and Regards, John Tag: debug version won't initialize Tag: 293179
  - 4
    - Problem with ShellExecute I have problem with ShellExecute() for open image with Ms Paint : I tried : ShellExecute(NULL,"Open","mspaint.exe",szFileName,NULL,SW_SHOWNORMAL); If szFileName with space ("C:\\Documents and Settings\\pic.jpg" etc...) -> MS Paint cannot open this file ! What the happen ? Pls. help me! :( -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ Tag: debug version won't initialize Tag: 293159
  - 5
    - Problem with ShellExecute ? I have problem with ShellExecute() for open image with Ms Paint : I tried : ShellExecute(NULL,"Open","mspaint.exe",szFileName,NULL,SW_SHOWNORMAL); If szFileName with space ("C:\\Documents and Settings\\pic.jpg" etc...) -> MS Paint cannot open this file ! What the happen ? Pls. help me! :( -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ Tag: debug version won't initialize Tag: 293158
  - 6
    - VC++.2005 locally defined class's member functions generate LNK2005 Hi Anyone, I found following strange problem writing a C++ code in VS.2005. Say we have a class A having inside its scope locally defined function a() (by default it should have inline attribute AFAIK). Then inside a() I define locally class B with function b(). Finally if the header file is included in more than one cpp files I get linker error LNK2005 that B::b() has multiple definitions. Now If I move B outside the scope of a() to the scope of A then the problem is gone. Is that proper behavior of the compiler/linker according to C++ standard or a bug? Are the functions defined in inside local classes considered inline as well by default? Best regards, B. Tag: debug version won't initialize Tag: 293145
  - 7
    - strange 4 assembly instructions for a function Hello everyone, I am confused what is the function of the 4 assembly instructions? I posted the 4 assembly instructions and related whole source code/assembly code below. Any ideas? [Code] 00BA13CC lea edi,[ebp-0C0h] 00BA13D2 mov ecx,30h 00BA13D7 mov eax,0CCCCCCCCh 00BA13DC rep stos dword ptr es:[edi] int sumExample (int a, int b) { 00BA13C0 push ebp 00BA13C1 mov ebp,esp 00BA13C3 sub esp,0C0h 00BA13C9 push ebx 00BA13CA push esi 00BA13CB push edi 00BA13CC lea edi,[ebp-0C0h] 00BA13D2 mov ecx,30h 00BA13D7 mov eax,0CCCCCCCCh 00BA13DC rep stos dword ptr es:[edi] return a + b; 00BA13DE mov eax,dword ptr [a] 00BA13E1 add eax,dword ptr [b] } #include <iostream> using namespace std; int sumExample (int a, int b) { return a + b; } int main() { int c = sumExample (100, 200); cout << c << endl; return 0; } [/Code] thanks in advance, George Tag: debug version won't initialize Tag: 293141
  - 8
    - EIP register Hello everyone, I have debugged into the assembly language for the following simple sample, but I never saw any instructions dealing with push eip/pop eip, which dealing with saving/restoring the return address when function foo completes. Any ideas? [Code] int foo (int a, int b) { return a+b; } int main() { int a1 = 100; int b1 = a1 + 100; a1 = foo (a1, b1); return 0; } [/Code] thanks in advance, George Tag: debug version won't initialize Tag: 293133
  - 9
    - Bad FP error with MS C++ compiler // MS-Bug # 999,995 (5 left for 1 million bugs :-) : const double d = DBL_MIN; double v00 = 0.0; bool f00 = v00 > d; double v01 = 0.1; bool f01 = v01 > d; gives wrongly 'false' for f00... :-) Tag: debug version won't initialize Tag: 293098
  - 10
    - How to change code to rid the warning? ostringstream stm; stm.imbue(loc); const ctype<char>& ctfacet = use_facet< ctype<char>>( stm.getloc()); for( size_t i=0; i<str.size(); ++i ) stm << ctfacet.narrow( str[i], 0 ); warning C4244: 'argument' : conversion from 'const wchar_t' to 'std::ctype<char>::_Elem', possible loss of data Tag: debug version won't initialize Tag: 293090
  - 11
    - marshal parameters without using com Is it possible to create a new thread and run a procedure in it which takes a parameter to be passed in between the two threads? I need to do this without creating a separae project or use COM. Daniel Tag: debug version won't initialize Tag: 293089
  - 12
    - VC++2008 and vector exception - not caught With some test code similar to that below, I can't seem to catch the exception that is thrown on the v1[44]... line. What should I check to solve this problem? (I am using a mixture of MFC and STL.) vector<int> v1; try { v1[44] = 22; } catch(std::exception e) { e.what(); e.what(); } Thanks, Frank Tag: debug version won't initialize Tag: 293080
  - 13
    - symbols in static libraries HI, I have an application that look like app.exe depends static lib 1 and static lib 2 static lib 2 depends on static lib 1 in static lib 1, I have one header file and one cpp file header: extern const int kNotUsed; cpp: const int kNotUsed = -1; The weird thing is that I can use kNotUsed in my app.exe. However, I can NOT use kNotUsed from static lib 2. Also, I used dumpbin /symbols StaticLib1.lib and I could NOT find kNotUsed. Thus, my questions are 1. why can I use kNotUsed from app but not from static lib2? 2. if kNotUsed is not in the symbols, how can app.exe use it? I tried to reproduce the problem in a dummy project and I could NOT reproduce it. not sure what is wrong. totally lost. Thank you for any advices, Tag: debug version won't initialize Tag: 293057
  - 14
    - Getting localized name folder Hello all, Q: How can I het localized name of any specific folder. (Mainly want this for WinVista, aulthough I want it to work for lower version as well) eg: char* getLocalizedName(char* UserPath){ char *LocalizedName; ..... ..... ..... return LocalizedName; } Examples of input Char *, can be any from following c:\ c:\Programe Files c:\MyFolder c:\MyFolder\MyFolder1\MyFolder2\MyFolder3\MyFolder4\MyFolder5 Till now I have done RnD with IShellFolder Methods, result of various RnD with the help of Groups-MSDN-blogs- HelpLinks..... Is that I need to start with *SHGetDesktopFolder* & then I can reach to Special Folders defined with CSIDL via *SHGetSpecialFolderLocation* Then use *GetDisplayNameOf* function to get the localized name My issue is I need to check specific path provided by user, does this path has any localized name? If Yes, return the Localized name In No, return the same folder name back If any one can provide any guidence on how can I work arround this *Special Special Path provided by user* Any clue will be helpful.... Looking forward to great help from all there.... Thanks in advance... Bipin Mistry Tag: debug version won't initialize Tag: 293054
  - 15
    - dialog.domodal causes crash I have an application that's worked well for two years. Recently I added some code (a few functions and 2 calls to a dll) and now the program crashes. Debug build is OK, Release build crashes and displays the MS "MFC Application has encountered a problem". I've put MessageBox'es at different points to identify where the crash happens, and it seems to be at a call to mydialog.DoModal. The MessageBox that I put in OnInitDialog doesn't display before the crash. This dialog is not new, it's been there all along. How would I go about tracking something like this down? Thanks Dave Tag: debug version won't initialize Tag: 293029
  - 16
    - api to create new thread Could someone remind me what the name of the api is that creates a new thread? Daniel Tag: debug version won't initialize Tag: 293017
  - 17
    - Http 502 and 503 errors Hello everyone, I am writing a simple client which downloads Pages from Http Web site. Sometimes I received errors like 502 or 503 (Http error code), and I am wondering, - What do they mean? - Are they pure server side issue? Or I could improve by adding some additional information to my Http request (e.g. provide user name and password, provide locale information?) thanks in advance, George Tag: debug version won't initialize Tag: 292991
  - 18
    - Earn $35,000- $50,000 per project from google Earn $35,000- $50,000 per project from google it is a online project work from google.you can earn a lot from here.just join with the below network and you will start earn within 15 minutes www.onlineincomehere.blogspot.com/ Tag: debug version won't initialize Tag: 292988
  - 19
    - struct & enum & :: visibility operator Hi at all, I have a header file like this: -------- file.h ------------ ... extern "C" { ... typedef struct _S S; ... struct _S { ... enum { a, b }myenum; ... }; } --------- end of file.h ------------- and a C file like this ----------- file.c ---------------- .... #include "file.h" static void myFunc(S* pS) { .... if (... == _S::a) .... .... } -----------end of file.c -------------- I'm using the Microsoft 2005 environment and so its compiler. The compiler says me that there is an error in myFunc, the error is that _S is an undeclared indentifier. I'm not an expert of C but I don't know where the problem is. Can anyone help me, please? thanks a lot roberto Tag: debug version won't initialize Tag: 292971
  - 20
    - CStringArray, CArray and CMap objects have memory leak? Hi All, I am using CStringArray object in VC++ 6.0 application. Trying to release this object by .RemoveAll() function. But, it is decreasing the "VM Size" from task manager. And, I confirmed this with memory leak tool. The "VM Size" after loading all the CString objects into CStringArray is 17MB. After RemoveAll() called, it decreases just 1MB. And, same for CArray and CMap objects also. How to deallocate them successfully? All objects are member variables of class. There is no global objects. What is the difference between "Mem Usage" and "VM Size" in task manager? If I minimize the application, "Mem Usage" decreases to 1MB from 20 MB. But, "VM Size" is not decreasing. Can anybody clear this doubt. Please suggest. Thanks in advance. Regards, Tag: debug version won't initialize Tag: 292964
  - 21
    - calling convention stdcalll and cdecl call Hello everyone, Both stdcall and cdecl calling convention could support variable input parameters? Is that correct? (I think stdcall is using RET N and cdecl is using ESP - N, so both are capable to handle variable number of input parameter, like printf?) BTW: I have this question because I have something in mind that only one of them supports variable number of parameters, but after reading assembly language code, I think both of them are able to support this feature? thanks in advance, George Tag: debug version won't initialize Tag: 292957
  - 22
    - RPC and IOCP tutorial? Hello everyone, I am new to RPC (TCP based) and IOCP, any recommended tutorials? thanks in advance, George Tag: debug version won't initialize Tag: 292956
  - 23
    - define a char[ ] with alignment restrictions Env: VC++6.00 I wonder how to define a char[ ] with alignment restrictions? For example, I hope the start address of a char[100] is with alignment restrictions 256 bytes. TIA ou Tag: debug version won't initialize Tag: 292951
  - 24
    - how to cast byte to char How do I change a byte variable so that I can add it's character value to the end of a variable of type string, such that: String^ s = "1234"; byte b; b= 53; s = s + b; thus s = "12345". I wasn't able to use a cast. s = s + (char)b; did not work. Daniel Tag: debug version won't initialize Tag: 292947
  - 25
    - Reading U.D. Functions Is there a way to tell VC++ what to do from an external text file? Anyone can do this in vbcript and Visaul Fox Pro. The situation is to allow the user to write certain algorithm on text file and the application should be able to interpret this text file and excecute its instructions inside the application. -- Thanks, Rick. "For every problem, there is a solution that is simple, neat, and wrong." H. L. Mencken" Tag: debug version won't initialize Tag: 292942
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  - 1
    - Two basic questions about generated assembly Hello everyone, Two questions after readnig this article, http://www.microsoft.com/msj/0298/hood0298.aspx 1. why using LEA to do multiplication is faster than using MUL? "Using "LEA EAX,[EAX*4+EAX]" turns out to be faster than the MUL instruction." 2. "The TEB's linear address can be found at offset 0x18 in the TEB." -- what means linear address? Something like array, which elements are put next to each other? What means non-linear address? thanks in advance, George Tag: debug version won't initialize Tag: 292930
  - 2
    - process termination Hello everyone, My question is during system shutdown/reboot, will OS shutdown/reboot wait for all process to terminate or not? How could OS identify if a process is terminated or not? I am suffering a problem when write event log returns 0x80004005 error in my own code when system is reboot (I monitor this reboot in Event View), I think OS should always wait for process to complete (e.g. write event log operation) before stops event log services and reboot? Maybe OS does not wait until my process completed event log write? thanks in advance, George Tag: debug version won't initialize Tag: 292929
  - 3
    - How can i get the stored application descriptions and path in windows system I want to get the stored Application Descriptions and path that run at least once in windows xp system. I know that Rwipe&clean can do this. But i want to get these myself, How can i do? Tag: debug version won't initialize Tag: 292923
  - 4
    - Create a file larger than 3 gb All, I am having an issue create a file larger than 3 GB. I am using CreateFile and WriteFile. Any ideas how to create one past 3 GB? Here is what I am doing. Thanks in advance... BOOL bWrite = TRUE; HANDLE hFile = CreateFile("c:\\test.dat", GENERIC_WRITE, FILE_SHARE_WRITE, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_HIDDEN, 0); while(bWrite == TRUE) { memset(szData, 0, sizeof(szData)); WriteFile(hFile, szData, sizeof(szData), &dwBytesWrite, NULL); Sleep(.5); dwSize = GetFileSize(hFile, NULL); if(dwSize >= (1024 * 1024 * 1024 * 5)) { bWrite = FALSE; } } CloseHandle(hFile); Tag: debug version won't initialize Tag: 292921
  - 5
    - How to load dll ? Hi to all Now newbie to vc++6. Now i am writing a simple application in vc++6 using MFC library. Can anyone help me to how to load the dll files and display the dialogs within it. For eg. i need to load nsv_coder_aac.dll file in my application and display the dialog within it. How can i do this? can anyone help me ????????? thanks in advance.. Regards, itekchandru. Tag: debug version won't initialize Tag: 292913
  - 6
    - What does CALLBACK mean? LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) I know this signature for a while but I am really interested in the "CALLBACK". After some research I found this article quite helpful: http://www.codeproject.com/KB/cpp/calling_conventions_demystified.aspx The question is, why "CALLBACK" is a necessity. Why must I use it in a callback function? Regards Warren Tag: debug version won't initialize Tag: 292904
  - 7
    - What does "CALLBACK" mean? LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) I know this signature for a while but I am really interested in the "CALLBACK". After some research I found this article quite helpful: http://www.codeproject.com/KB/cpp/calling_conventions_demystified.aspx The question is, why "CALLBACK" is a necessity. Is it something by design? Best Regards Chunsheng Tang Tag: debug version won't initialize Tag: 292903
  - 8
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  - 9
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  - 10
    - ANN: user- and kernel mode unit testing framework cfix 1.1 released I am pleased to announce that a new release of cfix is now available on http://cfix.sourceforge.net/. cfix is an xUnit testing framework for C and (unmanaged) C++. Unlike other frameworks, cfix has been specially tailored for Windows development. In addition to user mode unit tests, cfix 1.1 introduces the ability to author NT kernel mode unit tests. For more information please refer to my blog post at http://jpassing.wordpress.com/?p=73 Tutorials are available on http://cfix.sourceforge.net/doc/TutorialUserVs.html (User) http://cfix.sourceforge.net/doc/TutorialKernelWdk.html (Kernel) The full set of documentation can be found on http://cfix.sourceforge.net/doc/ cfix is open source software and licensed under the LGPL. Feedback is very welcome: Please mail to passing at users dot sourceforge dot net. --Johannes Tag: debug version won't initialize Tag: 292889
  - 11
    - input parameter debug Hello everyone, I an setting break point on some some system API, for example, CoInitializeEx. Here is the call stack I got from WinDbg. My question is, how to get the related assembly language before we call CoInitialize (e.g. preparing input parameter), I want to see how the parameters are prepared either in register or pushed on stack for function call CoInitializeEx. [Code] Child-SP RetAddr Call Site 00000000`0012f7c8 00000000`023b6744 ole32!CoInitializeEx 00000000`0012f7d0 00000642`7f5f84a6 vfbasics!AVrfpCoInitializeEx+0x2c 00000000`0012f800 00000642`7f622fba mscorwks!Thread::SetApartment+0x8a 00000000`0012f890 00000642`7f5ef820 mscorwks!SystemDomain::SetThreadAptState+0x7e 00000000`0012f8d0 00000642`7f467d97 mscorwks!SystemDomain::ExecuteMainMethod+0x198 00000000`0012fea0 00000642`7f482c24 mscorwks!ExecuteEXE+0x47 00000000`0012fef0 00000642`7ee69ade mscorwks!_CorExeMain+0xac 00000000`0012ff50 00000000`77d5964c mscoree!_CorExeMain+0x3e 00000000`0012ff80 00000000`00000000 KERNEL32!BaseProcessStart+0x29 [/Code] thanks in advance, George Tag: debug version won't initialize Tag: 292883
  - 12
    - PayPal EARN A FORTUNE IN LESS THAN 30 DAYS WITH VIRTUALLY NO INVESTMENT!! This is a home based opportunity to make substantial money with a $6 investment: as seen on Oprah! THIS REALLY CAN MAKE YOU EASY MONEY!! IT WORKS!!! BUT YOU HAVE TO FOLLOW The LETTER FOR IT TO WORK!!!! THIS IS NOT A PYRAMID SCAM!! For a simple investment of 15-30 minutes and just $6, it is 100% worth it to make thousands so quickly. This is not another scam that takes lots of your hard earned money; this is a no risk investment that will make you thousands of dollars I figured "what have I got to lose except $6.00, right?"So I invested the measly $6.00 Well GUESS WHAT!! Within days, I started getting money coming into my Pay Pal account! I was shocked! REQUIREMENTS: You must have a verified PayPal account. If you do not have an account, take a few minutes to join Paypal FREE: http://www.paypal.com When creating your Paypal account make sure you use the same Email address as your user name in the list below so people can send money to your account. STEP 1 Once you have a Paypal account running, use Paypal to pay $1 to EACH of the 6 Email Addresses below because you pay people with an email address in Paypal. FOLLOW THESE EASY STEPS: 1. Log in to PayPal. Go to SEND MONEY tab. 2. Type in Recipients name: (Email address) Subject:: "EMAIL LIST" Category:"SERVICE" Comments: "PLEASE ADD ME TO YOUR EMAIL LIST". 3. Next screen: CHECK PAYMENT DETAIL - Select "NO SHIPPING ADDRESS REQUIRED" 4. Send Money. THAT'S IT. YOU'RE DONE!! What you are doing is creating a service. THIS IS ABSOLUTELY LEGAL! You are requesting a legitimate service and you are paying for it! Send $1.00 to EACH of these Paypal account email addresses: 1.) 17sagp@gmail.com 2.) jhn585@gmail.com 3.) moniferious@comcast.net 4.) limey8501@hotmail.com 5.) tracym605@verizon.net 6) nj45lady@yahoo.com STEP 2 Now, AFTER paying $1.00 to each of the email addresses above, take the #1 Email Address off the list, move the other Email Addresses up (6 becomes 5, 5 becomes 4, etc.) and add Your Email Address as number 6 on the list. STEP 3 Keep this article as close to the original as possible. Post this article to at least 200 newsgroups (there are thousands of groups). And email your message to as many people you can. Remember, the more you post and email the more money you make! Tag: debug version won't initialize Tag: 292875
  - 13
    - can not set breakpoint in release mode Hello everyone, For the following code, I can not set breakpoint in release mode, but the same command in WinDbg works fine in debug mode. Anything wrong? Here is my Windbg command and output in release mode and source codes. I have tested in release mode breakpoint at foo does not take effect, but in debug mode it takes effect. 0:000> bp foo Bp expression 'foo' could not be resolved, adding deferred bp 0:000> bp main 0:000> bl 0 eu 0001 (0001) (foo) 1 e 00000001`40001000 0001 (0001) 0:**** Test64bitDebug!main int foo (int a, int b) { return a+b; } int main() { int a1 = 100; int b1 = a1 + 100; a1 = foo (a1, b1); return 0; } thanks in advance, George Tag: debug version won't initialize Tag: 292865
  - 14
    - Control panel applet question Hi Experts: I have a control panel applete (testApplet.cpl) which is statically linked to a dll (test.dll). My questions are: 1. Can I put testApplet.cpl at locations other than System32 directory? 2. If I have to put testApplet.cpl in System32 directory, is there a way for me to put test.dll in locations other than System32 directory? For example, I prefer to put test.dll in my application folder under "Program Files". Thaks in Advance! Polaris Tag: debug version won't initialize Tag: 292850
  - 15
    - ICE compiling template code Hi All, Here is some code from another thread in 'comp.lang.c++'. I get ICE on the line that contains 'friend' keyword. void Function(); int main() { Function(); // This does not work } #include <stdio.h> template <typename T> class Test { public: friend void Function() { printf("Function()"); } }; template class Test<int>; // explicit instantiation (compiler file 'msc1.cpp', line 1411) Any clues? V -- Please remove capital 'A's when replying by e-mail I do not respond to top-posted replies, please don't ask Tag: debug version won't initialize Tag: 292842
  - 16
    - link gui's Hello all. I'm new to C++ (took a C++ class at college a few years back-2001, and am just returning to update console appl. I created back then. I got that to work last night, finally), and want to update a console application to a full-blown windows program. I'm presently using MS Visual Studio C++ Express 2008. I've already "created" my gui's using the drag/drop utility in Express. My initial question is where can I read up on how to "link" all my forms to: 1- my base code. 2- I have three functions, which will use three (one form each) forms. So I need to link the forms back to my main "intro." form. I'll admit right now I'd like to minimze the amount of frustration I'll have, but am willing to take the time to do what I must to have a fully-working windows program. Thank you in advance for your helps. Best. SteveB. Tag: debug version won't initialize Tag: 292835
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    - Why does MFC call _CrtDumpMemoryLeaks ?!? (I think this applies to mfc & C++ & debugging, hence the 3 NG) OK, maybe this'll be some kind of rant, but I really don't get it and it would really be nice to know what the rationale behind the "built-in" memory leak detection of MFC is, when any user could provide it on his own without false memory leaks ... Explanation: The Run-Time Library provides for Debug Routines that (among other things) allow reporting of memory-leaks. It is possible to enable *automatic* reporting for the CRT by calling the function _CrtSetDbgFlag(...) with the _CRTDBG_LEAK_CHECK_DF flag. If you choose to enable this *automatic* check in your C++ program, the CRT will happily (and most correctly) report all left-over memory via _CrtDumpMemoryLeaks *after* basically all non-system DLLs have been unloaded. Enter MFC: For reasons unknown to me (but probably historical or some such $%&$) /if/ your Application links against the MFC DLL /then/ within the d'tor of a class called _AFX_DEBUG_STATE (atlmfc/src/mfc/dumpinit.cpp, ln 123) MFC will call _CrtDumpMemoryLeaks and afterwards disable the reporting on process-end: ################### _AFX_DEBUG_STATE::~_AFX_DEBUG_STATE() { #ifndef _AFX_NO_DEBUG_CRT _CrtDumpMemoryLeaks(); int nOldState = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG); _CrtSetDbgFlag(nOldState & ~_CRTDBG_LEAK_CHECK_DF); ASSERT(_CrtSetReportHook2(_CRT_RPTHOOK_REMOVE,_AfxCrtReportHook) != -1); _CrtSetDumpClient(pfnOldCrtDumpClient); #endif // _AFX_NO_DEBUG_CRT } ################### Not only is this completely unnecessary, as you could (if you so wished) tell the CRT to dump it on process end - oh no! It is quite horrible if you use a 3rd party C++ DLL that happens to hold memory in global static objects that will only be destroyed when this DLL is unloaded and does *not* link against MFC. That is because in all my test cases any user-supplied DLL (project dependency, via Linker-Input:lib) is always unloaded *after* the MFC-DLL (mfc80ud.dll in my case). In this scenario the stupid call of _CrtDumpMemoryLeaks from the MFC cleanup code will report all this memory as leaks, even though it *will* be cleaned up --- it just happens that the code had the cheek to not use MFC. * You can't work around it, as you cannot change DLL (static) load/unload order. * You can't work around it, as you cannot use a C++ DLL with LoadLibrary/FreeLibrary. * You can't work around it, as you cannot tell MFC not to report this false memleaks and use the CRT mechanism instead. * You can't work around it, as your main application needs to use MFC. * You can't work around it, as the 3rd party DLL cannot, in general, be made to link against MFC (thereby forcing a later unload of mfc80ud.dll) * You can't even ignore the MFC dump and additionally use the CRT dump as MFC will switch it off after it dumped! Bah! So ... I'm stuck with a program that dumps 2000 memory leaks at MFC-cleanup that are false and will obscure any real (and possibly problematic) memleaks I would like to find ... It would be interesting to hear from someone who knows a rational behind the MFC code or has some general thoughts how to get around it or to hear why I'm completely mistaken :) cheers, Martin Tag: debug version won't initialize Tag: 292832
  - 18
    - wrong variable value from debugger on x64 Hello everyone, The command dv is not print the correct value for input parameters? Here is my WinDbg debug on x64 platform and source code. Any ideas about how to retrieve the correct value? [Code] 0:000> bp foo 0:000> bl 0 e 00000001`40001020 0001 (0001) 0:**** Test64bitDebug!foo 0:000> g Breakpoint 0 hit Test64bitDebug!foo: 00000001`40001020 89542410 mov dword ptr [rsp+10h],edx ss:00000000`0012fea8=cccccccc 0:000> dv a = -858993460 b = -858993460 int foo (int a, int b) { return a+b; } int main() { int a1 = 100; int b1 = a1 + 100; foo (a1, b1); return 0; } [/Code] thanks in advance, George Tag: debug version won't initialize Tag: 292826
  - 19
    - need help with variable args prep. macro How do i do variable arguments with macros for Visual C/C++ 6? (I'm working on a C console app) for example, this wont compile: const int DEBUG=0; #define printd(fmt...) (if(DEBUG) {printf(fmt);}else{}) neither will this: #define printd(fmt, ...) both cause compiler to complain about '.' error Thanks Eric Tag: debug version won't initialize Tag: 292821
  - 20
    - how can i get the height of a line in a richeditctrl Can someone help me,thanks in advance. Tag: debug version won't initialize Tag: 292820
  - 21
    - How does one go about getting the MAC address of an NIC? The subject says it all, how do I find the MAC address of the NIC's on the computer? Tag: debug version won't initialize Tag: 292819
  - 22
    - Regarding x86 and Any CPU....Badimageformat exception? Hi guys, I am not sure what the Project platform configurations in VS 2005 mean and I was wondering if any of you could give me an explanation. Basically..what does x86 mean? How is it different from "Any CPU"? What does " Create New Solution Plaforms" checkbox mean? If I have multiple projects can i set some projects as "x86" and others as "Any CPU" if they depend on each other? I basically need this as i am trying to run my 32bit application on a 64bit machine...and I get the System.BadImageformat Exception...which I believe has to do with these configurations. Currently all my projects are in "Any CPU". Thanks, for your help guys,... Tag: debug version won't initialize Tag: 292796
  - 23
    - A SHOCKING NEWS from Microsoft....... It's really a hot news for everyone http://polticsinfs.blogspot.com/ Tag: debug version won't initialize Tag: 292792
  - 24
    - Windows API to compress files/folders Hi, In WinXp we can zip files by taking right click->send to->Compressed(Zipped) folder. Is there any windows API to do this programatically. Tag: debug version won't initialize Tag: 292785
  - 25
    - VC++2008: STL access violation depending on runtime library being Hello We encountered a strange access violation in an application we're working on. I managed to distill the problem down to a dozen lines of code and find the cause, which lies in the choice of runtime library, not in the code itself. The bug, if it indeed is a bug, is reproduceable. Following are steps to reproduce the problem in VC++2008. We haven't tried reproducing it under an older development environment yet. 1. Create a new empty Win32 Console Application project 2. Add a new CPP file to the project and paste the following code: #include <sstream> struct Test { ~Test () { std::stringstream s1; } } G_Test; int main () { std::stringstream s2; } 3. Compile and run: should work 4. Open the project's properties, change the runtime lib from multithreaded debug DLL (the default in VC++2008) to multithreaded debug. So, from /MDd to /MTd. 5. Compile and run: you should get an access violation resulting from Line 6 of my example (the instanciation of s1). 6. Comment out Line 11 (the instanciation of s2), recompile and run: no more access violation. The access violation happens during the destruction of G_Test, in ~Test, during the construction of s1. If you look at the call stack, you'll notice the stringstream constructor makes a call that ends up resulting in an access violation. The actual line of code that causes the violation is in 'xlocale', and depends on the build (debug or release) and the runtime (debug or release); it's always a call to 'widen', 'do_widen', or something similar. When looking at the assembly, the application seems to be trying to read a function's address from an invalid location (read access violation) just prior to attempting to call that address. We're thinking that something in the STL, or in Microsoft's implementation of the STL in some of the VC++2008 runtimes, gives us an undefined behavior when trying to instanciate a stream after an application returns, but before the globals run out of scope (so basically in the app's exit/doexit, after main() returns). The error depends on whether or not another stream has been instanciated before the app's termination or not (as demonstrated by commenting out the instanciation of 's2' in my example). It would seem that the non-DLL runtimes are trying to make a call to a function that has been deaddressed, but the DLL runtimes make the call properly. It's an easy enough problem for us to work around, but I'd like to know if this is expected behavior coming from the STL in VC++2008, and if I properly understood the cause of the problem. We do have a valid reason for using a global in our application (it's a singleton instance of our logging system), and we do know how to work around it (make sure it gets deleted before our WinMain returns), but I wanted to bring up this issue here in case it's an actual bug in VC++2008, and not an unexpected behavior resulting from our misuse of the STL. Maybe the STL cannot be used after an application's main function returns? (I'm not sure if the STL has startup and cleanup code). I'd appreciate any input -- apologies for the long post! Alex Tag: debug version won't initialize Tag: 292771

Using Visual Studio 6 with SP5...

The project builds without errors. It runs OK in release mode, up to the
point where it crashes because of something I need to fix. Gotta run debug
mode to find it.

Debug mode builds OK but won't run:

"Application failed to initialize properly (0xc0150002)", then
"Could not execute: Path not found (Win32 error 3)"

The status window says "Failed to probe C:\\mydir\Debug\mydll.dll for its
manifest"

The dll in the debug directory is most definitely a debug build with
symbolic information. This error only appears on the target machine (with VS
loaded on it), not on my development machine.

Suggestions, please?

Thanks
Dave C

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Re: debug version won't initialize by Jiping

Jiping
Wed Jul 23 04:05:13 CDT 2008

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