lvalue question

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  - 1
    - static variables discarded by the VS.NET2003 linker Hi Everyone, I found a thread on that topic posted year 2004 but not satisfied with the information there. So I decided to raise that issue once again. In general the problem with VS.NET 2003 linker is that it will discard an object file containing definitions of global variables of any type/ class if nothing else in this file is referenced by other files in the project. Now I have the following case. In given source file I have definitions of several global variables that in contructor register itself in another global container object. Later in code any of these variables would be accessed via that global container. But what actually happens is that the linker decides to discard the object files and instances of these global variables are never created and registered in the container. I am not sure what should be the correct behaviour of the linker in that case but could anyone let me know how to overcome that problem and make the linker to include the needed object files without forcing it to include any object files from given library even if not referenced at all? Can we say that in my case objects are not referenced at all since even if they are not referenced directly still it is possible to be reference via the container object? Many thanks in advance! Best regards, Boris. Tag: lvalue question Tag: 274341
  - 2
    - How to use "quote" in TEXT(quote) Hi there. I'd like to change "quote" in TEXT(quote), i.e. for example, char *temp = "filename0"; for(i=0; i<10; i++) { .... function(TEXT(temp), ...); filename[8] += 1; .... This code will be an error as follow : error C2065: 'L_temp' : undeclared identifier And without TEXT() function fails due to ERROR_FILE_NOT_FOUND. Is there any good idea? Thanks. Tag: lvalue question Tag: 274337
  - 3
    - Is it possible to implement Serialisation in DialogBase Application Hi guys, how r u, can u please tell me is it possible to implement Serialisation in Dialog Base Application , if yes then how is it possible. thanks. Tag: lvalue question Tag: 274335
  - 4
    - Why on earth are there no VC++ 2005 SP1 redists on downloads.microsoft.com? I mean, seriously, what gives? If you run a program needing SP1 on a machine with only the RTM redist you get what is probably one of the dumbest, most unhelpful, stupidest error messages imaginable. It's TOTALLY non-obvious that there's a version mismatch; the configuration information is not incorrect, it's just unfulfilled. depends even more helpfully suggests that the manifest may be corrupt. So why the hell aren't the redists on the website? The redists you have at the moment are useless for SP1 apps; what the hell's the point of even having them? The whole SxS is such a brain-damaged sorry-ass system. And how about fixing it so that the error messages aren't so totally worthless? Was this thing put together by monkeys or something? -- Tag: lvalue question Tag: 274329
  - 5
    - Asking for trouble with incomplete types? Hi, I am trying to reduce the complexity of a set of classes I made a couple of years ago, what equates to a set of trees, for which I want to use std::list and avoid having to use direct pointers anywhere. I wish to have a class contain a list of itself, as so: class B; class A { public: std::list<B> List; typedef std::list<B>::iterator iterator; iterator begin() { return List.begin(); } }; class B { public: A m_a; }; My question is, provided I ensure there is no in class A referencing direct instances of B, can I be fairly certain im not launching into a world of c++ driven pain, for example no: class A { ... B GetSomething(); }; I expect that as long as thing that call items such as copy constructors or -> / * operators of list<B>::iterator are in cpp files there should be no issue. Could anyone tell me different? Regards, -- - Mark Randall http://www.temporal-solutions.co.uk http://www.awportals.com Tag: lvalue question Tag: 274322
  - 6
    - Odd behavior of #if preprocessor directive Hello, Can somebody explain what am I doing wrong or why #if preprocessor directive shows this odd behavior. I am using Visual Studio 2003. I have following code: ============================= #define MY_MACRO MACRO_B #if MY_MACRO==MACRO_A # define MY_PRINT printf ("MACRO_A\n") #elif MY_MACRO==MACRO_B # define MY_PRINT printf ("MACRO_B\n") #else # define MY_PRINT printf ("MACRO_C\n") #endif extern void print_my_line ( ) { MY_PRINT ; } ============================= I was expecting that in my function print_my_line, MY_PRINT would expand to print "MACRO_B". However when I run this code through preprocessor, I get following: ============================= extern void print_my_line ( ) { printf ("MACRO_A\n") ; } ============================= This happens regardless if I define MY_MACRO to be MACRO_B or MACRO_C or anything else. it appears that "#if MY_MACRO==MACRO_A" always evaluates to TRUE regardless what the definition of MY_MACRO is. Is there any explanation why preprocessor behaves like this. Am I missing some flags or settings? Thanks and Regards Yogi Watcher Tag: lvalue question Tag: 274317
  - 7
    - .NET Socket-ReConnection Error-Connecting To UnWorking Server Sock Hello, First of all I wish you a good day. My help request is about .NET asynchrounus socket communication. I have developed Server-Client Windows Forms .NET applications in VC++ .NET v2003. I have several problems re-establishin connection between peers. Below are my problem cases after closing of the first successfull communication; #1) I re-start the Server to accept connection requests. While it is waiting, I run the Client. It is connecting to server socket and waits for the data communication. But at this time, my server program is still waiting at "BeginAccept". Nothing changes at its status. #2) I re-start the Server to accept connection requests. While it is waiting, I run the Client. It gives 10061 WSAECONNREFUSED (Connection refused by host) #3) After first successful communication closing, I start the Client to connect to server 2-4 seconds later. It connects to a server socket however my server socket program is not started to accept connection requests at this time. Then, Client program waits for data communication. I checked the working TCP sockets with "netstat -n -o 2" command. After the closing of the first successfull communication, first server socket's status either TIME_WAIT and several seconds later CLOSE_WAIT, or when it TIME_WAIT, new connection is being set with same server IP:PORT with clietn socket (problems at #1 and #3) I shutdown and close my sockets using the same commands. Below is the function, that is same for both; static Socket *m_ServerSocket = NULL; // *m_ClientSocket = NULL; System::Void mf_Shutdown_And_Close() { try { if (m_ServerSocket != NULL) { if ( m_ServerSocket->Connected ) { m_ServerSocket->Shutdown(SocketShutdown::Both); Thread::Sleep(250); } m_ServerSocket->Close(); m_ServerSocket = NULL; Thread::Sleep(500); mf_ChangeButtonStatusTo( ConnStatus::CONNECT ); } } catch(Exception *exp) { // Programda hata durumunu gÃ¶ster } } Below are the options of my sockets Server Socket: SetSocketOption(..., SocketOptionName::ReuseAddress, true); SetSocketOption(..., SocketOptionName::KeepAlive, true); SetSocketOption(..., SocketOptionName::DontLinger, true); and Client Socket: SetSocketOption(..., SocketOptionName::DontLinger, true ); Previously, I developed similar Server-Client programs using native C++ and blocking codes. I didnot faced with this kind of problems. Why Server socket is not closing totally after succesfull Shutdown() and Close() commands? I put Thread::Sleep(..) to let the program give time to system to release resources. Even Using GC::Collect() did not useful. Thank you very much in advance for your helps. PS: You may check my programs www.AlperAkcayoz.com/PRG/AsynchSoket-CppNET.zip I use Windows XP Pro Visual C++ .NET Standard v2003 .NET Framework 3.0 Windows Forms .NET application -- ~~~~~~~~~~~~~~~~~~~ Ä°yi Ã?alÄ±Å?malar / Wish You Good Work Alper AKÃ?AYÃ?Z (Bil Muh) www.AlperAkcayoz.com Tag: lvalue question Tag: 274313
  - 8
    - const oddity in decorated names If I declare the functions void foo(int bar[]) void bar(int * bar) then I expect them to behave the same way - and indeed they do in most cases. I have give these functions these (admittedly meeningless) implementation: __declspec(dllexport) void foo(int bar[]) { bar = NULL; } __declspec(dllexport) void bar(int * bar) { bar = NULL; } The program compiles. If I look at the decorated names of the exported names in the dll they aren't the same though. foo gets a decorated names that indicates that it was declared as void foo(int * const bar). But since the program above compiled that is obviously not the case. I'll have admit that the difference between "int *" and "int * const" in a function argument is irrelevant to the caller of the function, but is there a reason for this oddity, or is this just a mistake? Tag: lvalue question Tag: 274301
  - 9
    - use WriteFile to send buffer to COMM port error! --Urgent help!!!!!!!!!!!!!!!!!!!!!!!!! Hi,all I want to write a char buffer to COM1 port, I write the code as below: //Step1 : open & init COM1 port hCom=CreateFile("COM1", GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED, NULL); if(hCom==(HANDLE)-1) { AfxMessageBox("Failed To Open COM1!"); return FALSE; } SetupComm(hCom,1024,512); COMMTIMEOUTS TimeOuts; TimeOuts.ReadIntervalTimeout=MAXDWORD; TimeOuts.ReadTotalTimeoutMultiplier=0; TimeOuts.ReadTotalTimeoutConstant=0; TimeOuts.WriteTotalTimeoutMultiplier=100; TimeOuts.WriteTotalTimeoutConstant=500; SetCommTimeouts(hCom,&TimeOuts); DCB dcb; GetCommState(hCom,&dcb); dcb.BaudRate=2400; dcb.ByteSize=8; dcb.Parity=NOPARITY; dcb.StopBits=1; SetCommState(hCom,&dcb); PurgeComm(hCom,PURGE_TXCLEAR|PURGE_RXCLEAR); //Step 2: Send buffer to COM1 port OVERLAPPED m_osWrite; memset(&m_osWrite,0,sizeof(OVERLAPPED)); m_osWrite.hEvent=CreateEvent(NULL,TRUE,FALSE,NULL); char lpOutBuffer[12]; memset(lpOutBuffer,'\0',16); lpOutBuffer[0]=0x00; lpOutBuffer[1]=0x00; lpOutBuffer[2]=0x00; lpOutBuffer[3]=0x00; lpOutBuffer[4]=0x5F; lpOutBuffer[5]=0x5F; lpOutBuffer[6]=0x50; lpOutBuffer[7]=0x50; lpOutBuffer[8]=0x01; lpOutBuffer[9]=0xA1; lpOutBuffer[10]=0x8F; lpOutBuffer[11]=0x8F; DWORD dwBytesToWrite=12; DWORD dwBytesWritten; COMSTAT ComStat; DWORD dwErrorFlags; BOOL bWriteStat; ClearCommError(hCom,&dwErrorFlags,&ComStat); bWriteStat=WriteFile(hCom,lpOutBuffer,dwBytesToWrite,& dwBytesWritten,&m_osWrite); if(!bWriteStat) { if(GetLastError()==ERROR_IO_PENDING) { WaitForSingleObject(m_osWrite.hEvent,1000 ); } } I use COM1 to send buffer and COM2 to receive buffer, the COM1 & COM2 setting are the same, but after I sent the buffer , I receive 15 bytes from COM2 and the bytes content are different from those I sent from COM1, could anybody tell me why? Any helpful ideas would be highly appreciated! -ja Tag: lvalue question Tag: 274297
  - 10
    - Visual Studio 2005 include file error I have ported a 32 bit module to 64 bit. It does database and e-mail, and requires the inclusion of mapi and sql header files. These header files are pulled in from the platform SDK inclusion directory of Visual Studio 2005. So, Visual Studio 2005 has the following: MAPIDEFS.H declares: typedef ULONG BOOKMARK; SQLTYPES.H declares: typedef SQLULEN BOOKMARK; This worked fine in 32 bit because SQLULEN was typed as unsigned long. Under 64 bit, it is typed as UINT64. Of course, my module will not compile, without error, as a 64 bit application because of the redefinition of BOOKMARK Can someone suggest an elegant way of getting around this use of the same type name that is based on a different type? Either I'm missing something obvious/easy, or this change wasn't thought out properly. Thanks, Robert. Tag: lvalue question Tag: 274293
  - 11
    - Forward references Hello, typedef struct _cc { struct _aa a; } cc; typedef struct _aa { struct _cc c; } aa; How do I make it compile? Thanks Tag: lvalue question Tag: 274292
  - 12
    - How to track down BSTR allocation problems? Hi! I experience constant program crashes. I know it is very likely due to wrong usage of COM task heap (CoTaskMemAlloc/SysAllocString API) but cannot track the source of a problem directly at the point of a crash -- it crashes in SysFreeString on an already released (elsewhere) memory. Putting some debugging effort in this reveals that at some (essentially random) point SysAllocString returns a block of memory already occupied by another BSTR. When the latter of corresponding SysFreeString calls is made, the program crashes. I have source files at hand, but there is too much of code to look with bare eyes... so I'm stuck. Can one recommend any tool or technique to track down such BSTR allocation errors? Thanks. Alex Shulgin Tag: lvalue question Tag: 274288
  - 13
    - Send e-mail to Exchange Server Hi, Does somebody know how to send e-mails to an Exchange Server from VC6++? The app should run on Windows 95 and XP Professional. Any piece of help is welcome, Tag: lvalue question Tag: 274285
  - 14
    - Compiling Example Project Hi, It's me again. Please forget about what I said from the previous posts on STL for the time being. I've got a simple C example project compilation problem. It is just plain-vanilla C. Error 8 error C2332: 'struct' : missing tag name c:\documents and settings\luckie\my documents\visual studio 2005\projects\myproject\aa.h 328 In this file, I have typedef struct { ... struct _AA *a; ... }; in another file, I have typedef struct _AA { ... } AA; typedef AA *PAA; The file was compiled okay as a whole but when I extracted this part, the error occurred. In help, I have Error Message 'typedef' : missing tag name The compiler found an incomplete type definition. The following sample generates C2332: // C2332.cpp // compile with: /c struct S { int i; }; typedef struct * pS; // C2332 typedef struct S* pS; // OK int get_S_i(pS p) { return p->i; } Tag: lvalue question Tag: 274284
  - 15
    - Detecting stack corruption Hello all, Our application hangs with 0% CPU usage. When I "Break All", I see a very short call stack for our main thread (much shorter than it should be) - only the top few entries are shown. My experience has always been that this inidctates stack corruption. I have directed the debugger to break as soon as an exception is thrown. This has been done for all exceptions, in particular "Stack memory corruption" under "Native run-time checks". However, this is not catching the problem. We have a very large application with many threads, so it's like hunting for a needle in a haystack. Furthermore, procurring BoundsChecker has been quashed from above. So, I'd like to solicit alternatives on how to track down the point at which the stack is first corrupted. Thanks, Dave Tag: lvalue question Tag: 274281
  - 16
    - Breakpoint in specific thread context Hello all, I've set a breakpoint, but it's getting hit repeatedly in a thread context I don't care about. Is there any way in VC++ .NET 2003 to break at a breakpoint only if execution is within a thread context that I specify? Thanks, Dave Tag: lvalue question Tag: 274278
  - 17
    - RegOpenKeyEx() problem failing second time onwards Hi, I am calling RegOpenKeyEx() value successively, for the first time it is working fine, but from second time onwards it is returning 2 (File Doesn't exist).How to solve this problem. I need to read the registry key value every time using the below code. I am using CString (Unicode) DWORD dwbuff[18]; LONG lReturnCode; BYTE Data[18]; DWORD dwRegType = REG_SZ; HKEY hKey = 0; CString strPath = "SOFTWARE\\Microsoft\\Windows NT\\UPSSST\\IMV"; lReturnCode = RegOpenKeyEx(HKEY_LOCAL_MACHINE,strPath, 0, KEY_ALL_ACCESS,&hKey); if (lReturnCode == ERROR_SUCCESS) { lReturnCode = RegQueryValueEx(hKey, _T("Baud Rate"), NULL, &dwRegType, (LPBYTE)&Data, (LPDWORD)&dwbuff); } Can any one help Tag: lvalue question Tag: 274273
  - 18
    - new C++ style casts I'm doing some maintenance on some code that has a function that takes in a 'const char * pch' parameter. That pch value is then passed into a function that requires a 'void * vp' parameter. It is currently cast as '(void*)vp' but I want to change it to the new C++ style cast but if I use 'static_cast' or 'const_cast' or 'reinterpret_cast' it reports that it can't convert the 'const char *' to 'void *'. Is there any way to cast this using C++ style casts? Thanks! Tag: lvalue question Tag: 274270
  - 19
    - BCSTR to Char byte value Dear Friends, I know it is an ordinary thing but I tried for few times and could not find the solution, now we are having holidays here so will be up for work a day after tomorrow but still don't know how to do that;-) Problem: I have a C++ dll that uses std calls for invoking the calls and every thing works just fine except the particular thing. __std void foo(BCSTR str){ //I get the exact string here with the size of 6 bytes } The caller is VB app. foo("A0B3C1") In dll I receive 6 bytes that makes sense but I want the original byte value that should be three bytes containing: First byte : A0 Second byte : B3 Third byte : C1 Must be easy peasy but can't get it;-) thanks ali Tag: lvalue question Tag: 274266
  - 20
    - Some syntax question I quoted "Initialization of a reference is trivial when the initializer is an lvalue (an object whose address you can take. The initializer for a "plain" T& must be an lvalue of type T" What exactly is the lvalue? Some ASCIIart may help :) double &dr = 1; // error const double& cdr = 1; //ok Thanks Tag: lvalue question Tag: 274249
  - 21
    - R6034 An application has made an attempt to load the C runtime lib Hi, I am currently working on a project created using VS2005 in the WinXP SP2 platform. This project included various open source libraries such as OpenSSL, Crypto++ and log4cpp. There are no compilation errors but when I run it, the following error occur: R6034 An application has made an attempt to load the C runtime library incorrectly. I have also set the generate manifest option under the project settings to yes and I am still encountering this problem. Does anyone know how I can resolve this? Regards cleohm Tag: lvalue question Tag: 274246
  - 22
    - One more question If I have the following code: template<class I, class T> I find (I first, I last, const T& value) { while (first != last && *first != value) ++first; return first; } struct int_node { int val; int_node *next; }; // Wrapper template <class Node> struct node_wrap { Node *ptr; node_wrap(Node* p = 0) : ptr(p) { } Node& operator *() const { return *ptr } <<<<< what is this? and more coming up Node* operator->() const { return ptr } <<<<< what does cont mean here? // pre-increment operator node_wrap& operator++ () { ptr = ptr->next; return *this; } // post-increment operator node_wrap operator++(int) { node_wrap tmp = *this; ++*this; return tmp; } bool operator == (const node_wrap& i) const { return ptr == i.ptr; } bool operator != (const node_wrap& i) const { return ptr != i.ptr; } }; bool operator == (const int_node& node, int n) { return node.val == n; } <<< what are these extra lines for? bool operator != (const int_node& node, int n) { return node.val != n; } void main() { int_node *list_head, *list_tail; int_node *in = new(int_node); in->val = 100; in->next = 0; list_head = list_tail = in; for (int i = 0; i < 10; i++) { int_node* in = new(int_node); in->val = i; in->next = 0; list_tail->next = in; list_tail = in; } // 100, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 node_wrap<int_node> r; r = find(node_wrap<int_node>(list_head), node_wrap<int_node>(), 10); <<<<< don't understand this as well if ( r != node_wrap<int_node>()) std::cout << (*r).val << std::endl; r = find(node_wrap<int_node>(list_head), node_wrap<int_node>(), 3); if (r != node_wrap<int_node>()) std::cout << (*r).val << std::endl; } it says that find(list_head, null, 5); won't work, why? Sorry this is not an English reference, could you please explain the above code? Tag: lvalue question Tag: 274242
  - 23
    - how to declare global variable in a managed clr? how to declare global variable in a managed clr? i tried String^ name but it didn't work. i am using Form1.h's codes inside to declare the global variable name. must i really use a structure? daimler_thinking_hard Tag: lvalue question Tag: 274241
  - 24
    - MFC doc/view and threading Hi Can anyone explain this behaviour? I have a doc/view MFC program. When it initializes, I launch a background thread (the idea is that the original thread processes the GUI and the background thread does other non-GUI tasks). At this point, Task manager is showing 2 threads for the process.. as I would expect. Now .. when the user starts an application-modal dialog, Task manager is suddenly showing 4 threads! When that dialog is dismissed, there are still 4 threads showing! I have also noticed that, when the dialog is running, the other windows are still able to update (they process all messages, normally). The questions are .. what is the threading model behind all this? Should I not be worried about thread safety? Presumably there is some message-processing loop in the background? Why the 4 threads?? thanks, Neil Tag: lvalue question Tag: 274239
  - 25
    - What are a function object and a functor? Hi, I'm reading a book on STL? And don't understand them as they are not in English. Could you please raise an example of each? Thanks Tag: lvalue question Tag: 274235
- Next
  - 1
    - Don't know why it is Hi, I'm reading a book on STL I wonder why I is by value while T is by reference. template <class I, class T> I find (I first, I last, const T& value) { while (first != last && *first != value) ++first; return first; } Thanks a lot Jack Tag: lvalue question Tag: 274232
  - 2
    - Foreign Languages And Internet Explorer Websites - Windows XP I have Windows XP Home version. Is it possible to set my computer so it recognizes and translates foreign languages to English when I go to web pages from other countries? If so, how do I do that? THANKS! Tag: lvalue question Tag: 274230
  - 3
    - Citrix metaframe against window metaframe Is there a way to tell using Visual C functions if a user is running a citrix metaframe or a window metaframe. thanks Tag: lvalue question Tag: 274229
  - 4
    - ping Charles Wang Hello Charles, This is just out of curiousity. I've noticed that you respond to a number of posts. Is this your job function, as might be implied by your signature? If not, what else do you do? If so, how many people (approx) are in a simlar job function to monitor the forums and help wherever they can? - Arnie Tag: lvalue question Tag: 274227
  - 5
    - Need help on COM/DCOM Hi, I have a VB COM server that accepts a number of clients, either local or remote. The problem is that when one of clients crashes, the VB server does not detect the crash and thus does not close the connection properly. Is there any way in VB to detect the failure of client(s) and to terminate the connection(s) properly? Your help is greatly appreciated. Regards, Chaw-Chi Yu Tag: lvalue question Tag: 274218
  - 6
    - curses which supports function keys We are doing some software conversion from Solaris to Windows. We are testing pccurses, but it doesn't appear to support function keys. We should be able to do: F1, Shift-F1, Ctrl-F1, and Ctrl-Shift-F1. Tag: lvalue question Tag: 274208
  - 7
    - How to detect USB device insert. Hello I am writing a console app that needs to detect USB storage keys being inserted and removed. I have looked through the MS Help and decided I can use RegisterDeviceNotification. I lifted this snippet from the help files. #include <windows.h> #include <dbt.h> HWND hWnd; BOOL DoRegisterDeviceInterface( GUID InterfaceClassGuid, HDEVNOTIFY *hDevNotify ) { GUID DeviceGUID; DWORD dRet = 0; DEV_BROADCAST_DEVICEINTERFACE NotificationFilter; char szMsg[80]; ZeroMemory( &NotificationFilter, sizeof(NotificationFilter) ); NotificationFilter.dbcc_size = sizeof(DEV_BROADCAST_DEVICEINTERFACE); NotificationFilter.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE; NotificationFilter.dbcc_classguid = InterfaceClassGuid; *hDevNotify = RegisterDeviceNotification( hWnd, &NotificationFilter, DEVICE_NOTIFY_WINDOW_HANDLE); if(!*hDevNotify) { wsprintf(szMsg, "RegisterDeviceNotification failed: %d\n", GetLastError()); MessageBox(hWnd, szMsg, "Registration", MB_OK); return FALSE; } } However I am stuck trying to fill out the DEV_BROADCAST_VOLUME structure. The variable InterfaceClassGuid in this snippet was passed in to the function. I do not know how to find the device class GUID. Any help would be appreciated. Rhodri Tag: lvalue question Tag: 274200
  - 8
    - Removing lines from Multi-line CEdit Say for a example, i want to delete/remove 50% of the lines in my CEdit control when the line count exceeds 100. So something like linecount = m_edit.GetLineCount(); if linecount>100{ ??? m_edit.clear ?? i've tried a few of the minimal examples i could find and i havent been able to really put anything together looking through the msdn helps files. Thanks. Tag: lvalue question Tag: 274195
  - 9
    - Convert std::string to LPTSTR Hi, Does anyone knows how I can convert a std::string to LPTSTR data type? Regards cleohm Tag: lvalue question Tag: 274193
  - 10
    - strcpy_s really safe? I get a fatal error in both debug and release mode using strcpy_s function with the following code. Same problem in VS2005 and VS2005 SP1 char sTest[5]; strcpy_s(sTest,5,"0123456789"); I think it should in this case only copy the 4th first characters together with a '\0' character at the end...but having my application crashing is quirte unexpected! Tag: lvalue question Tag: 274192
  - 11
    - nightmare with ASP, IIS6 & VC6 PSDK I have been having a nightmare with ASP/ASP.NET & IIS6. We use Msxml2.DOMDocument.4.0 object to create a XML object in ASP. The Msxml2.DOMDocument.4.0 is from the Windows Platform SDK Feb 2003 (the last version compatible with VC6). Then we use TranslateXSLT(XMLDocument.transformNode) passing in a xsl file path. Our pages work perfectly fine under IIS5 & IIS6 onsite. However strange things happening at our clients IIS6: - transformation just displays the xml nodes instead of the html code. Probably it's nothing to do with IIS6. Maybe it's Msxml2.DOMDocument.4.0 from Platform SDK Feb 2003? Anyone has any ideas? Tag: lvalue question Tag: 274191
  - 12
    - compress string Hi all, Think that I have this string: 02123456B011020DD4D60B1ED7B88E73805EA151D8A644A9F5DD7CF6073CC55C8A61B72A7252432B6956B2DDEE948C689764CDF15880EB1E5110F497C05F0414AS I need send it over an modem conection, then I need compress it. Any one have same function that compress/decompres string in ASCII? I need this in ANSI C. Thanks Tag: lvalue question Tag: 274188
  - 13
    - compress string Hi all, Think that I have this string: 02123456B011020DD4D60B1ED7B88E73805EA151D8A644A9F5DD7CF6073CC55C8A61B72A7252432B6956B2DDEE948C689764CDF15880EB1E5110F497C05F0414AS I need send it over an modem conection, then I need compress it. Any one have same function that compress/decompres string in ASCII? I need this in ANSI C. Thanks Tag: lvalue question Tag: 274187
  - 14
    - compress string Hi all, Think that I have this string: 02123456B011020DD4D60B1ED7B88E73805EA151D8A644A9F5DD7CF6073CC55C8A61B72A7252432B6956B2DDEE948C689764CDF15880EB1E5110F497C05F0414AS I need send it over an modem conection, then I need compress it. Any one have same function that compress/decompres string in ASCII? I need this in ANSI C. Thanks Tag: lvalue question Tag: 274186
  - 15
    - DLL work for console app, but not for MFC app Hi, Visual Studio.NET 2005 C++ I have 3 projects 1. DLL project 2. Console Project 3. MFC application. Both Console & MFC app will call the classes in DLL project What I did is 1) build the DLL project. Inside the DLL project "Preprocessor", there'is WIN32;_DEBUG;_WINDOWS;_USRDLL;DBDLL_EXPORTS 2) build the Console Project, copy the DLL debug version under debug folder of console app, and it works fine. 3) build the console project, compiled and linked without error, but when I tried to start the MFC app, there's error of "The procedure entry point ?... cannot be located in the dynamic link library ****.dll" I defined the class like below #ifdef DBDLL_EXPORTS #define WIND32DLL_API __declspec(dllexport) #else #define WIND32DLL_API __declspec(dllimport) #endif class WIND32DLL_API M2DataSource { .... } Is there any differnce between build DLL for console app & MFC app? Thanks, ddnj0114 Tag: lvalue question Tag: 274182
  - 16
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Hi,
If we want a statement to return an lvalue, in C++, you need to use
"by-reference".
I still can't visualize what is meant by lvalue
T i; < this is an lvalue object?
j = i < i and j are both lvalues?
Am i correct?
Thanks

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Re: lvalue question by Igor

Igor
Thu Feb 22 07:05:54 CST 2007

"Jacky" <jl@knight.com> wrote in message
news:e1OLPsnVHHA.1636@TK2MSFTNGP02.phx.gbl
> I still can't visualize what is meant by lvalue

Roughly, if it can occur on the left hand side of an assignment, it's an
lvalue. If it occupies storage so that you can take its address, it's an
lvalue.

> T i; < this is an lvalue object?

Yes. You can write &i

> j = i < i and j are both lvalues?

j is undeclared identifier. i is still an lvalue. It doesn't matter that
in this particular case it appears on the right of an assignment. What
matters is that it could potentially be on the left side. But I find it
easier to think about it in terms of address-of & operator.
--
With best wishes,
Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925

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