strcat problem

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  - 1
    - How to init array of strings member by a constructor? I have tried the following: struct X{ string s[3]; ............. X(): s[0]("a"), s[1]("b"), s[2]("c") {}; // failes: C2059 }; 1. I hope it is clear that s is an array of 3 strings and not a string of 3 chars. 2. How to init such an array. Thanks, David Tag: strcat problem Tag: 270384
  - 2
    - How do I hi-light menu item? How do you hi-light a menu(TrackPopupMenuEx) item? Note: HiliteMenuItem(...) works...sortof. It hi-lights the item but then when you use the arrow keys you see two hilights(yours and the real one). Tag: strcat problem Tag: 270374
  - 3
    - How to adjust the font size in visual C++? The font in the editor is so small, I want to adjust it, but don't know how. Thanks for your tips. Tag: strcat problem Tag: 270369
  - 4
    - checked iterators and /MD I'm tying to disable checked iterators in release builds defining _SECURE_SCL=0. On the other hand I'm using the multithreaded DLL runtime. This seems to have been built with _SECURE_SCL=1 defined. It also seems that it contains an instantiation of std::string. The net result is that the following code uses checked iterator which I would like to avoid in release builds. bool foo( const std::string& sstr ) { for ( std::string::const_iterator n = sstr.begin() ; n != sstr.end() ; ++n ) if ( ! isdigit( *n ) ) return false; return true; } Is there a workaround for this? Can I define something to force the compiler to use the STL headers instead of the code in the DLL runtime for std::string? Thanks in advance. -- Please remove "sam_" from email address. Tag: strcat problem Tag: 270364
  - 5
    - vc7 to vc8 and back to vc7 vc8 converts vc7 files, but vc7 will not read vc8 files after conversion and vc8 leaves nothing behind for vc7 (same file names used). So, what is a person supposed to do when thier employer liscensed vc 7 at work and they have vc8 at home? I really don't see any logic in buying vc7 just to work on the same solution and projects I did at work, from home, when I already own 2005 professional. Tag: strcat problem Tag: 270353
  - 6
    - Debug Build fails, Release Build OK - VC++ 6.0 to VS2005 port I'm trying to upgrade a large project from VS 6.0 to VS 2005. After fixing a lot of things that changed (mostly sloppy coding in the original project that VS2005 didn't allow), I got the release version to build successfully. Unfortunately, it crashes right away when I start it. So now I need to build the debug version. Unfortunately, the compiler gives innumerable error messages of the sort shown below. The #include file referenced here is included by way of <fstream> and its subsidiary files. The original project used <fstream.h> which no longer exists. Apparently the code syntax of my fixes satisfies the compiler, since the release version builds successfully. So maybe there is a switch I need to throw? But I can't find it. Searching MSDN, these newsgroups, etc., didn't turn up anything, but I'll be this is something that has been discussed in the past. Thanks in advance. -- C Gregory Tecmag, Inc. Compiling... AcqPropsDialog.cpp d:\program files\microsoft visual studio 8\vc\include\xdebug(32) : warning C4229: anachronism used : modifiers on data are ignored d:\program files\microsoft visual studio 8\vc\include\xdebug(32) : error C2365: 'operator new' : redefinition; previous definition was 'function' d:\program files\microsoft visual studio 8\vc\include\xdebug(32) : error C2491: 'new' : definition of dllimport data not allowed d:\program files\microsoft visual studio 8\vc\include\xdebug(32) : error C2078: too many initializers d:\program files\microsoft visual studio 8\vc\include\xdebug(32) : error C2440: 'initializing' : cannot convert from 'int' to 'void *' Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast d:\program files\microsoft visual studio 8\vc\include\xdebug(32) : error C2143: syntax error : missing ';' before '(' d:\program files\microsoft visual studio 8\vc\include\xdebug(32) : error C2226: syntax error : unexpected type 'size_t' d:\program files\microsoft visual studio 8\vc\include\xdebug(33) : error C2059: syntax error : ')' d:\program files\microsoft visual studio 8\vc\include\xdebug(36) : warning C4229: anachronism used : modifiers on data are ignored ....etc..... Tag: strcat problem Tag: 270352
  - 7
    - Iterators are much slower than pointers The following code copies the contents of a string into a vector of chars a million times. The problem is that the version that uses begin() and end() iterators is much slower than the version that uses the begin and end pointers under Visual C++ 2005. (see comments) Is there a way to make both versions equal fast? I tried to define _SECURE_SCL to 0 before including the headers, but it doesn't make it faster. #include <iostream> #include <vector> #include <string> int main() { std::string s(2000, '\0'); for(int i = 0; i < 1000000; ++i) { // comment out one of the two lines before testing the code //std::vector<char> v(s.begin(), s.end()); // slow version, takes ~14 seconds //std::vector<char> v(s.data(), s.data() + s.length()); // fast version, takes ~1 second } } Tag: strcat problem Tag: 270350
  - 8
    - compiling a dependancy .dll, where did the import library go? I did this before no problem, but for some reason when I complile my project as a .dll the output (in the debug directory) is only the .dll file and there is no corresponding .lib Everything on msdn claims that the compiler will generate this lib for you, but does not explain where the settings are to look at if it does not generate this lib. My executable needs this lib in order to use the .dll (implicit linking) Any ideas on what settings to look at? Tag: strcat problem Tag: 270349
  - 9
    - Platform (native) development With each appearance of new version of .NET Framework I wonder if there is point in being stubborn in terms of native (Win32) development. So, the question for all experts is: Is there point in continuing use of Visual C++ or I/we should migrate to .NET (VC.NET). I am asking primarily because I am about to start developing application dealing with AVI (and other) files including some graphics. .NET in its current version(s) has no adequate support for this kind of files. On the other hand, native Win32 API is loaded with routines for this purpose. Again, the question is: Win32 or stop being stubborn and migrate to .NET? (I apologize if I picked wrong group to post this question) Tag: strcat problem Tag: 270347
  - 10
    - Platform SDK new version ? Hi, After new release of IE7, I'm wondering when new version of platformSDK will be released ? thank you Vilius Tag: strcat problem Tag: 270345
  - 11
    - Compiler bug with aligned members in virtuals + alloca() in VS2003 Hi there, I believe I've found an issue with a specific combination of object instantiations and the alloca() function. It appears that the compiler miscalculates the placement of ESI on the stack, so in a debug build, the __RTC_CheckEsp() stack checker function throws up the following warning: "Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call. This is usually a result of calling a function declared with one calling convention with a function pointer declared with a different calling convention." I've attached the code below and it should be reproducible by creating a new win32 c++ project and just running and building it in debug. Thanks for your attention. If you can confirm my results, please let me know. I've tested it against the original VC++ 2003 and similar code causes the same issue with SP1. I'll update when I get to try it on VS2005. Rich ///////////////////////// #include <malloc.h> #include <windows.h> class ClassWithDestructor { public: ~ClassWithDestructor() {} // Destructor needed }; class AlignedMember { __declspec(align(32)) int a; // Needs an aligned member public: AlignedMember() {} // Constructor needed }; class Application { public: virtual bool Application::render() // Needs to be virtual { ClassWithDestructor classWithDestructor; int *myInt = (int *)alloca(sizeof(int)); AlignedMember alignedMember; return true; } bool callRender() { return render(); } // Needs a wrapper to the virtual virtual ~Application() {} }; int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int) { Application application; return application.callRender(); } Tag: strcat problem Tag: 270340
  - 12
    - Virtual Memory growing seemingly independent of Private Bytes We have an application that receives network packets and writes them to files on disk. This application will run along nicely with about 85M of private bytes and 200M of virtual bytes in use. After about 6-12 hours of running, the virtual bytes will take off to over 1.7 G and bad allocs will start occurring. We have been examining this behavior from every which way and can't really explain it. The private bytes never grows appreciably. Any ideas what can cause this? The app does have several dynamically loaded dlls and we us the dll version of the runtime library to help consolidate memory allocations. The network communications use completion ports and the app is heavily multi-threaded. We are considering going down the road of using separate heaps with the hopes of trying to figure out what is going wild. Any ideas of what could be going on? joe Tag: strcat problem Tag: 270338
  - 13
    - _bstr_t Whenever, I look at a _bstr_t in the VC++ 6.0 debugger, it only shows part of it and indicates that there is more by placing "{1}" at the end. Anyone know how to see all of a _bstr_t in the debugger? Tag: strcat problem Tag: 270334
  - 14
    - VS 2005 re-compile whole project each time Hi. I have some win32 project where I have about 20 .cpp files. When I make change in one of them, VS re-compile each .cpp source each time. I've tried almost every project option but without result. Is there any known trodden way to check where I'm wrong? Thanks in advance. Tag: strcat problem Tag: 270318
  - 15
    - MIDL link problem - upgrade to VC8 Hello, I am upgrading the VC++6.0 project to 2005. In the project I have 2 idl files. I get the next errors: LssSsc_s.obj : error LNK2005: "struct _MIDL_PROC_FORMAT_STRING const __MIDL_ProcFormatString" (?__MIDL_ProcFormatString@@3U_MIDL_PROC_FORMAT_STRING@@B) already defined in LssPsc_s.obj LssSsc_s.obj : error LNK2005: "struct _MIDL_TYPE_FORMAT_STRING const __MIDL_TypeFormatString" (?__MIDL_TypeFormatString@@3U_MIDL_TYPE_FORMAT_STRING@@B) already defined in LssPsc_s.obj 111.exe : fatal error LNK1169: one or more multiply defined symbols found When I look at .c generated files I see the declaration in 2 files: typedef struct _MIDL_TYPE_FORMAT_STRING { short Pad; unsigned char Format[ TYPE_FORMAT_STRING_SIZE ]; } MIDL_TYPE_FORMAT_STRING; typedef struct _MIDL_PROC_FORMAT_STRING { short Pad; unsigned char Format[ PROC_FORMAT_STRING_SIZE ]; } MIDL_PROC_FORMAT_STRING; Any idea how to avoid it? Why is the problem in VC2005? Thanks Tag: strcat problem Tag: 270316
  - 16
    - _mbscpy_s confusion Hi All! I'm new to cpp and getting severely beat up by some pointer stuff. I have an unsigned char array buffer with some data including the length of a string followed by the chars of the string. This byte array is received from a client via socket - all that works fine. I am trying to call _mbscpy_s to get the string out of the buffer: BYTE buf[BUF_SIZE]; // 1024 // buf bytes look like this buf[0] = 0 next four are length of 'name' buf[0] = 9 buf[0] = 0 buf[0] = 0 buf[0] = 0 'name' starts here buf[5] = 112 'p' buf[6] = 97 'a' buf[7] = 114 'r' etc. Now, the code: unsigned char* name = new unsigned char [iNameLen]; // length is 9 errno_t err = _mbscpy_s( name, iNameLen, &buf[5] ); throws a 'Buffer too small' exception but errno_t err = _mbscpy_s( name, iNameLen, &buf[4] ); doesn't throw, although *name = 0, which is as expected. How do I get my multi-byte string out of the buffer? Please help me make the pain go away! Thank you!!! Kevin Montreal, QC Tag: strcat problem Tag: 270315
  - 17
    - Pls--Need help with Hellow World! with MS Visual C++ 6.0 For some reason I cannot get my HelloWorld program to display "Hello World!" on the output window. My program compiles, links, and executes without errors. After executing this program a window appears with a white background and no text. I am running MS Visual C++ 6.0 Professional Edition. TIA Here's my program: // The Hello World #include<stdafx.h> #include<iostream.h> #include<conio.h> int main() { cout << "Hello World!" << endl; getch(); return 0; } --------------------- I tried // The Hello World #include<stdafx.h> #include<iostream.h> #include<conio.h> int main() { cout << "Hello World!" << endl; /*** getch(); ***/ return 0; } ---------------------- And I still get a blank window to appear when I execute the program. I would expect a window to quickly flash on the screen and go away, but the window remains until I close it. I created this with Win32 Console selected. Another question I have is why do I need stdafx.h? Tag: strcat problem Tag: 270304
  - 18
    - about stderr May I use in Microsoft C++ the following statement or I will get an error? #include <cstdio> ...... std::fputs( msg.c_str(), std::stderr ); .... Vladimir Grigoriev Tag: strcat problem Tag: 270289
  - 19
    - More than StringCchPrintf is broken Since some of the source code for Windows CE is public, I tried to see if I could find just where StringCchPrintf breaks programs. I haven't found it yet but I found the following gem. void WideToAnsi (const WCHAR *wcs, char *sz, DWORD cch) { #ifdef TARGET_BUILD DWORD i = 0; cch--; while (i < cch && wcs[i]) { sz[i] = (char) wcs[i]; i++; } sz[i] = 0; #endif } Even when the device's code page is 932 or a Chinese or Korean character set. Brillant. Tag: strcat problem Tag: 270282
  - 20
    - Change cursor - Windows mobile 5.0 Hi folks, I am trying to change the default cursor to custom or a standard hand cursor on a windows mobile 5.0 application. I tried different things but I keep getting error 6 (invalid handle) when loading the cursor. 1. First I tried LoadCursor() with standard and custom cursors HCURSOR hCursor = LoadCursor(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDC_MYCURSOR)); 2. The wait cursor is the only one to work on my app. SetCursor(LoadCursor(NULL, IDC_WAIT)); The hand cursor does not work SetCursor(LoadCursor(NULL, IDC_HAND)); 3. Then I tried LoadImage() HANDLE hCursor = LoadImage(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDC_CURSOR1), IMAGE_CURSOR, 0, 0, LR_DEFAULTSIZE); But the identifier "LR_DEFAULTSIZE" is not defined even if I include "Winuser.h". I read that the LR_MONOCHROME might help but once again this is not defined. Now the documentation talks about linking to "Cursor.lib" and "Mcursor.lib". I do not have those libs and I did not find them on the web either...? So is it really possible to do what I need? What did I miss? Thanks in advance, -- ST --------------------------- stopin@nospam.nospam Tag: strcat problem Tag: 270281
  - 21
    - StringCchPrintf is broken StringCchPrintf is broken, verified with the debugger in Visual Studio 2005 on Windows XP Pro, target running on a Windows Mobile 5 Pocket PC. All machines, Windows versions, and Visual Studio 2005 are the same language version, Japanese. The Windows Mobile 5 Pocket PC SDK is US-English. char devnm[50]; // ANSI because gethostname doesn't handle Unicode char *mdlnm = "Pocket PC"; // ANSI for no reason at the moment gethostname(devnm, sizeof devnm); #ifdef _UNICODE StringCchPrintf(szTraceInfo, ARRAYSIZE(szTraceInfo), _T("device type \"%S\", hostname \"%S\""), mdlnm, devnm); #else StringCchPrintf(szTraceInfo, ARRAYSIZE(szTraceInfo), _T("device type \"%s\", hostname \"%s\""), mdlnm, devnm); #endif // breakpoint on the next line of code ... The Unicode version of StringCchPrintf was executed, as expected in Windows CE. mdlnm was a constant this time as shown: Pocket PC devnm was an ANSI string 15 bytes long including the NUL terminator: $B%=%U%H3+H/(BiPaq The result: device type "Pocket PC", hostname "" StringCchPrintf really can't handle conversion between ANSI and Unicode, so maybe that's why MSDN doesn't say it can. (Except that StringCchPrintf managed to handle one conversion, where a string only used a small subset of all the characters that exist in the default and current code page.) Tag: strcat problem Tag: 270274
  - 22
    - Problems with boost::threads and C++/CLI using VS 2005 SP1 Beta If I link my /clr application to the boost::thread library when using the new SP1 I get the following error when running my application The application failed to initialize properly (0xc000007b). Click on OK to terminate the application. If I run it in the debugger it gives the same error and never breaks into something I can step through. This worked fine pre-SP1 so I'm guessing something's changed. I have made sure that I've recompiled the boost libraries afer SP1. I've posted to the boost newsgroup and they've said they're not doing anything 'CLI hostile' and they would expect it to work. Is this the proper place to report issues with the service pack? Here's a simple example which will fail when compiled with /clr. Note that including the boost::thread header automatically links with the library. #include <boost/thread/thread.hpp> int main( int argc, const char* * argv ) { return 1; } Any help would be appreciated. John Dunn Tag: strcat problem Tag: 270267
  - 23
    - One spin control works, one doesn't!!! Hey All! I'm stumped! I have two dialogs, both dealing with Hours:Minutes. In the first dialog the spin control is defined in the .rc as: CTEXT "",ST_HOUR,15,11,18,10,WS_BORDER | NOT WS_GROUP CONTROL "Spin1",SB_HOUR,"msctls_updown32",UDS_WRAP | UDS_SETBUDDYINT | UDS_AUTOBUDDY | UDS_ARROWKEYS | UDS_NOTHOUSANDS | WS_TABSTOP,33,11,10,10 CTEXT "",ST_MINUTE,43,11,18,10,WS_BORDER | NOT WS_GROUP CONTROL "Spin2",SB_MINUTE,"msctls_updown32",UDS_WRAP | UDS_SETBUDDYINT | UDS_AUTOBUDDY | UDS_ARROWKEYS | UDS_NOTHOUSANDS | WS_TABSTOP,61,11,10,10 LTEXT "AM",TX_AMPM,76,13,12,12,NOT WS_GROUP And the setup code is: // setup spin buttons SendDlgItemMessage(hWndDlg, SB_HOUR, UDM_SETRANGE, 0, MAKELONG(23, 0)); SendDlgItemMessage(hWndDlg, SB_MINUTE, UDM_SETRANGE, 0, MAKELONG(59, 0)); SetDlgItemText(hWndDlg, ST_HOUR, "12"); SetDlgItemText(hWndDlg, TX_AMPM, szAm); SendDlgItemMessage(hWndDlg, SB_HOUR, UDM_SETPOS, 0, MAKELONG((short) 0, 0)); And the reading code is: int nValue = (int)SendDlgItemMessage(hWndDlg, SB_HOUR, UDM_GETPOS, 0, 0L); if (nValue >= 12) { SetDlgItemText(hWndDlg, TX_AMPM, szPm); wsprintf(szWorkBuf, "%02d", (nValue>12)?nValue-12:12); SetDlgItemText(hWndDlg, ST_HOUR, szWorkBuf); } Now, in the above the dialog is loaded, the spin control is initialized and the displayed value is 12:00am. When the user presses the down arrow for the HOUR the spin control is read and returns nValue == 23 which is CORRECT! I have another dialog which uses almost the exact same code which behaves VERY badly! Here is the control definition in the .rc file: CTEXT "",ST_START_HOUR,14,19,16,10,WS_BORDER | NOT WS_GROUP CONTROL "Spin1",SB_START_HOUR,"msctls_updown32",UDS_WRAP | UDS_SETBUDDYINT | UDS_AUTOBUDDY | UDS_ARROWKEYS | UDS_NOTHOUSANDS,29,19,10,10 CTEXT "",ST_START_MIN,39,19,16,10,WS_BORDER | NOT WS_GROUP CONTROL "Spin1",SB_START_MIN,"msctls_updown32",UDS_WRAP | UDS_SETBUDDYINT | UDS_AUTOBUDDY | UDS_ARROWKEYS | UDS_NOTHOUSANDS,55,19,10,10 LTEXT "am",ST_START_AMPM,66,20,12,9,NOT WS_GROUP Here is the code which initializes the spin control: // setup spin buttons SendDlgItemMessage(hWndDlg, SB_START_HOUR, UDM_SETRANGE, 0, MAKELONG(23, 0)); SendDlgItemMessage(hWndDlg, SB_START_MIN, UDM_SETRANGE, 0, MAKELONG(59, 0)); SetDlgItemText(hWndDlg, ST_START_HOUR, "12"); SetDlgItemText(hWndDlg, ST_START_AMPM, szAm); SendDlgItemMessage(hWndDlg, SB_START_HOUR, UDM_SETPOS, 0, MAKELONG((short) 0, 0)); Here is the code which reads the dialog control: int nValue = (int)SendDlgItemMessage(hWndDlg, SB_START_HOUR, UDM_GETPOS, 0, 0L); if (nValue >= 12) { SetDlgItemText(hWndDlg, ST_START_AMPM, szPm); wsprintf(szWorkBuf, "%02d", (nValue>12)?nValue-12:12); } SetDlgItemText(hWndDlg, ST_START_HOUR, szWorkBuf); OK, now here's where the problem surfaces. First, when this control is displayed its starting value is set to ZERO (not 12). Second, and this is BIG, if the user clicks the down arrow on this control the nValue is set to 11 which is WRONG, it should be 23!!! The only other piece of information I can share is that the 2nd spin control is in a separate dialog which is called by the dialog containing the first spin control. I've looked at this until my eyes have crossed... help please! Phil =============================================== half frog half prince at oohay dot com =============================================== Tag: strcat problem Tag: 270254
  - 24
    - transmitFile() function How can transmit memory-mapped files using transmitFiles() function?. Tag: strcat problem Tag: 270249
  - 25
    - Command line cross-compile X86, X64 and IA64 Visual Studio 2005 Hi, I want to builds several librairies (lib and dll) by using the command line (cl.exe, link.exe, ...) with VS2005. I know the option /MACHINE:{X86, X64, IA64} for the linking but is there a similar option for the compiler? All librairies that I build are the same size witch is impossible. Here are the command line that I use : cl.exe @" /c /Wp64 /O2 /D _WIN64 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _CRT_NON_CONFORMING_SWPRINTFS /D NDEBUG /D _WINDOWS /D _MBCS /Z7 /Zc:wchar_t " and link.exe " /MACHINE:IA64 /implib:" kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /dll /incremental:no libpath:"PATH" " So, I think the link go to the right target but the problem is cl.exe. How to specify to target machine ? /bin/amd64/cl.exe can execute /bin/ia64/cl.exe can't execute Regards Eric Tag: strcat problem Tag: 270248
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  - 1
    - Reallocating arrays of classes How do I resize an array of classes which have been allocated using new in Visual c++ 6 class MyClass { public: }; int main() { MyClass *pMyClass = new MyClass[5]; pMyClass = (MyClass*)realloc(pMyClass,7 * sizeof MyClass); delete [] pMyClass; } This doesn't work Thanks Tag: strcat problem Tag: 270242
  - 2
    - operator overload question ok here's another one: I get these errors when compiling my code 1>c:\programme\microsoft visual studio 8\vc\include\xutility(256) : error C2666: 'eoScalarFitness<ScalarType,Compare>::operator <' : 2 overloads have similar conversions 1> with 1> [ 1> ScalarType=double, 1> Compare=std::greater<double> 1> ] 1> cvs-eo\eo\src\eoscalarfitness.h(59): could be 'bool eoScalarFitness<ScalarType,Compare>::operator <(const eoScalarFitness<ScalarType,Compare> &) const' 1> with 1> [ 1> ScalarType=double, 1> Compare=std::greater<double> 1> ] 1> or 'built-in C++ operator<(double, double)' 1> while trying to match the argument list '(eoScalarFitness<ScalarType,Compare>, const double)' 1> with 1> [ 1> ScalarType=double, 1> Compare=std::greater<double> 1> ] 1> c:\programme\microsoft visual studio 8\vc\include\algorithm(2063) : see reference to function template instantiation 'bool std::_Debug_lt<_Ty,eoScalarFitness<ScalarType,Compare>>(const _Ty1 &,_Ty2 &,const wchar_t *,unsigned int)' being compiled 1> with 1> [ 1> _Ty=double, 1> ScalarType=double, 1> Compare=std::greater<double>, 1> _Ty1=double, 1> _Ty2=eoScalarFitness<double,std::greater<double>> 1> ] 1> c:\programme\microsoft visual studio 8\vc\include\algorithm(2075) : see reference to function template instantiation '_FwdIt std::_Upper_bound<std::_Vector_iterator<_Ty,_Alloc>,double,__w64 int>(_FwdIt,_FwdIt,const double &,_Diff *)' being compiled 1> with 1> [ 1> _FwdIt=std::_Vector_iterator<eoMinimizingFitness,std::allocator<eoMinimizingFitness>>, 1> _Ty=eoMinimizingFitness, 1> _Alloc=std::allocator<eoMinimizingFitness>, 1> _Diff=__w64 int 1> ] 1> cvs-eo\eo\src\eoproportionalselect.h(75) : see reference to function template instantiation '_FwdIt std::upper_bound<std::_Vector_iterator<_Ty,_Alloc>,double>(_FwdIt,_FwdIt,const double &)' being compiled 1> with 1> [ 1> _FwdIt=std::_Vector_iterator<eoMinimizingFitness,std::allocator<eoMinimizingFitness>>, 1> _Ty=eoMinimizingFitness, 1> _Alloc=std::allocator<eoMinimizingFitness> 1> ] 1> cvs-eo\eo\src\eoproportionalselect.h(71) : while compiling class template member function 'const eoBit<FitT> &eoProportionalSelect<EOT>::operator ()(const eoPop<EOT> &)' 1> with 1> [ 1> FitT=eoMinimizingFitness, 1> EOT=eoBit<eoMinimizingFitness> 1> ] 1> cvs-eo\eo\src\do\make_algo_scalar.h(200) : see reference to class template instantiation 'eoProportionalSelect<EOT>' being compiled 1> with 1> [ 1> EOT=eoBit<eoMinimizingFitness> 1> ] 1> cvs-eo\eo\src\ga\make_algo_scalar_ga.cpp(60) : see reference to function template instantiation 'eoAlgo<EOT> &do_make_algo_scalar<eoBit<FitT>>(eoParser &,eoState &,eoEvalFunc<EOT> &,eoContinue<EOT> &,eoGenOp<EOT> &,eoDistance<EOT> *)' being compiled 1> with 1> [ 1> EOT=eoBit<eoMinimizingFitness>, 1> FitT=eoMinimizingFitness 1> ] the code in xutility is template<class _Ty1, class _Ty2> inline bool __CLRCALL_OR_CDECL _Debug_lt(const _Ty1& _Left, _Ty2& _Right, const wchar_t *_Where, unsigned int _Line) { // test if _Left < _Right and operator< is strict weak ordering if (!(_Left < _Right)) return (false); else if (_Right < _Left) // LINE 256 _DEBUG_ERROR2("invalid operator<", _Where, _Line); return (true); } There is an operator overload defined template <class ScalarType, class Compare > class eoScalarFitness { public : eoScalarFitness() : value() {} eoScalarFitness(const eoScalarFitness& other) : value(other.value) {} eoScalarFitness(const ScalarType& v) : value(v) {} eoScalarFitness& operator=(const eoScalarFitness& other) { value = other.value; return *this; } eoScalarFitness& operator=(const ScalarType& v) { value = v; return *this; } operator ScalarType(void) const { return value; } /// Comparison, using less by default bool operator<( const eoScalarFitness & other) const { return Compare()(value, other.value); } // THIS IS THE FAULTY? OVERLOAD // implementation of the other operators bool operator>( const eoScalarFitness<ScalarType, Compare>& y ) const { return y < *this; } // implementation of the other operators bool operator<=( const eoScalarFitness<ScalarType, Compare>& y ) const { return !(*this > y); } // implementation of the other operators bool operator>=(const eoScalarFitness<ScalarType, Compare>& y ) const { return !(*this < y); } private : ScalarType value; }; -> How can I force msvc to use overload in order to end it's confusion about which one to use? cheers, Oliver Tag: strcat problem Tag: 270234
  - 3
    - Circular DLL dependencies Although circular dependencies are something developers should normally avoid, unfortunately they are very easy to create accidentally between classes in a VS project (i.e. circular compile-time dependencies). But then I started wondering how "easy" it would be to similarly make a NON-RUNTIME circular dependency between (implicitly linked) DLLs. After all, authors like John Lakos tell us to avoid such circular dependencies between "packages" (i.e. libraries). But to my surprise, evidently it isn't possible to create a library circular dependency even if you try... Tonight I tried to make a circular dependency by creating two Win32 console DLLs in a new solution, and attempted to make both have a (implicit link) dependency on the other. But no matter how I tried, in the end I always got a linker error about missing symbols - because DLL 'A' needed the type library of DLL 'B', which did not exist yet because DLL 'B' needed the type library of DLL 'A'. A similar problem occurred if I made both projects just static libraries (instead of DLLs). In the end, I concluded that to make the circular dependency I would need to involve some kind of externalized interface descriptions - such as IDL (e.g. CORBA?). But if I used IDL in that fashion, I figure I would end up with something that is more akin to circular runtime dependency rather than a non-runtime dependency. Can anyone give me an example of how DLLs (or even static LIBs) can get involved in a circular dependency? I'm scrutinizing this topic because authors like John Lakos ("Large Scale C++") talk about how "packages" (aka libraries) should be forced away from cyclical dependencies. Well, why make all that effort of preaching against circular package/library dependencies, if its not even possible to make such circular dependencies in the first place? Tag: strcat problem Tag: 270233
  - 4
    - virtual functions with default arguments Hi, Suppose we have class A { public: virtual void f(int = 3) = 0; }; class B : public A{ public: virtual void f(int i = 6) { cout << i; } }; A *p = new B; p->f(); // .. The question is; Is this a standard C++ feature when f prints 3 (base class's default value) instead of 6 (the one which is in the actually called function)? Thanks in advance. -- ====== Arman Tag: strcat problem Tag: 270230
  - 5
    - TrackPopupMenuEx returns 1446 I keep getting this error from my code(TrackPopupMenuEx) below. Could anybody please tell me why? 1446 = Popup menu already active. Note: I haven't called TrackPopupMenuEx before this. So it strikes me as strange. Code(for MenuBar) is called from WH_KEYBOARD hook. The function is triggered by the up and down arrow keys(pressed down/no repeat keys) on the keybord. Toolbar has a key that is hot itemed before the code. void UpDownArrow() { RECT rc; SendMessage(TB_GETRECT,(WPARAM)0, (LPARAM)&rc); MapWindowPoints(HWND_DESKTOP,(LPPOINT)&rc, 2); TPMPARAMS tpm; tpm.cbSize = sizeof(TPMPARAMS); tpm.rcExclude.top = rc.top; tpm.rcExclude.left = rc.left; tpm.rcExclude.bottom = rc.bottom; tpm.rcExclude.right = rc.right; PostMessage(TB_PRESSBUTTON, 0, TRUE); ::TrackPopupMenuEx(GetSubMenu(m_hMenu, 0), TPM_LEFTALIGN | TPM_LEFTBUTTON | TPM_VERTICAL, rc.left, rc.bottom,::GetParent(m_hWnd),&tpm); PostMessage(TB_PRESSBUTTON, 0, FALSE); } Tag: strcat problem Tag: 270227
  - 6
    - problem with calling mfc dll from #C Hi All, Debug Assertion Failed File dbgheap.c _CrtIsValidHeapPointer() I get the above while trying to CGAL::Intersection(Polygon_2 , Polygon_2,std::back_inserter(...)) in a MFC DLL project (Visual Studio .Net 2003) I call it from C# project. COM server which has been imported in managed code What to do to fix my project? Please Help Thanks Miki Tag: strcat problem Tag: 270226
  - 7
    - icon changes with change of extension when we change the extension of a file in windows, its icon also changes..... how does windows do tht. in my application i require a similar approach. i want the icon to be dependent on the file extension not on the attributes of the file. i have gone trough the registry but things are not very clear. Windows has listed all the file extensions avaliable there, but there is no general way to extract icons for those extension... kindly help Tag: strcat problem Tag: 270222
  - 8
    - Windows executable crashing If you have a Windows executable file that is crashing but you don't have the source code, is there any reasonable way to determine why it's crashing? I think there is a buffer overflow for a file path, but I don't know how to prove it. Tag: strcat problem Tag: 270221
  - 9
    - Why can't it find odbc32.lib? It's there. I have installed VC++ Express and the PSDK. I have successfully migrated VS6.0 workspaces and projects to VCE, and successfully get them to compile from nmake makefiles. Now, I checked in all the .sln and .vcproj files to my version control, alongside the former .dsw and .dsp files. Then I checked out a new sandbox. It won't build over not being able to find odbc32.lib, via nmake. Why not? What can I do to have fresh sandboxes build using nmake? Is there another file I need to commit to version control? Now, if I check out a fresh sandbox and build with the VS6 tools (msdev) it will build fine, and then if I clean everything and build the same sandbox with msbuild it will still build fine. So, something in the VS6 build must "fix" whatever's wrong. Also, if I go to my fresh sandbox and open the project in the IDE it will build fine. Then I go to build the same project via the command line with msbuild and I get the same link error about odbc32.lib. Thanks, JeanneP Tag: strcat problem Tag: 270210
  - 10
    - How to convert _TCHAR * to string? I need to check command line parameter if (argv[1] == option) .... // option is a string variable And argv is defined as _TCHAR* argv[] by MSVS wizard. The code don't work and it's very hard to convert argv[1] to string. Tag: strcat problem Tag: 270209
  - 11
    - Converting std::string to System::String* Is there a way to convert std::string to System::String* on Windows XP SP2 with Visual Studio .NET 2003 and with compiler vc 7.1? I saw a possible way to do it but .NET 2005 is required for it: http://msdn2.microsoft.com/en-us/library/ms235631.aspx gcnew doesn't seem to be available for .NET 2003, does anyone know any work around to solve my problem? Thierry Tag: strcat problem Tag: 270208
  - 12
    - private destructor and templates I have a POD type with a private destructor. There are a whole hierarchy of derived POD types, all meant to be freed using a public member function Destroy in the base class. I get warning C4624. I read the description, decided that it's exactly what I want, and ignored the warning. Now I'm trying to inherit using a template. Instead of "destructor could not be generated because a base class destructor is inaccessible", I now have an error C2248 <name of base destructor> "cannot access private member". Is this correct or a bug? I don't want the compiler to generate a destructor for the base class, I won't declare any variables on the stack and I will use the base Destroy function to deallocate it. /** ** \brief Carries a request and any associated parameters. **/ struct PNPEXPORT IConcurrentOperations::OpRequest abstract : OpMessage { ... private: /** ** \brief Destructor, executes cleanup ** ** Calls FreeAgent to manage reference counting pAgent. ** ** Private visibility prevents declaration on the stack. **/ ~OpRequest() { FreeAgent(); } public: /** ** \brief Frees resources used by this request **/ void Destroy( void ) { delete this; } }; /** ** \param Base, should be derived from OpNotification or OpRequest ** and provide a default constructor. **/ template<typename Base> struct IConcurrentOperations::BufferedMessage : public Base {...} Tag: strcat problem Tag: 270198
  - 13
    - accessing an array of integers from jscript in a vc++ activex/com Hi there, I am new to using ActiveX and COM and as you can imagine, having a hard time wading through these waters. Hope you will be able to help me. I am trying to pass an array of integers from JScript to an ActiveX/COM dll as well as back to the JScript. I am totally lost as to what I need to be using to achieve this and how - should I be using Variant or IDispatch, etc. I have noticed that when I use IDispatch I am able to properly read the values that I have hardcoded in JScript (eg. arrayElement[0] = 5 ... ) But when I try to populate the array with the values returned it doesnt work. The values returned are of type: VARIANT | VT_BSTR. Heres the code that Im using to return my values : USES_CONVERSION; // For Conversion macros HRESULT hReturn = S_OK; // Return value SAFEARRAY *ptrSafeArray = NULL; // Safe array SAFEARRAYBOUND safeArrayBounds[1]; // Safe array size char ptrBuffer[MAX_STR_LEN]; // Buffer // Fill the safe array bounds safeArrayBounds[0].lLbound = 0; // Lower bound _variant_t vOut; // Number of elements safeArrayBounds[0].cElements = 5; //Create the safe array ptrSafeArray= SafeArrayCreate(VT_VARIANT|VT_BSTR,1,safeArrayBounds); //Populating the array for(long loop = 0; loop < 5; loop++) { switch (loop) {case 1: sprintf(ptrBuffer,"%d",receivedStruct.address[0]); break; case 2: sprintf(ptrBuffer,"%d",receivedStruct.address[1]); break; } // End index switch // Put the element in safe array vOut= A2W(ptrBuffer); hReturn = SafeArrayPutElement(ptrSafeArray, &loop, &vOut) } // Fill the out parameter ptrRetVal->vt = VT_VARIANT | VT_ARRAY| VT_BSTR; ptrRetVal->parray = ptrSafeArray; ======================= And at the JScript end I read this into a VBArray and then convert it to a JScript array using VBArray.toArray() Then when I try to populate the JScript integer array with the returned values and pass it back to the DLL it doesnt seem to recognize them as integers (eg. theAddress = Number(arrayFrmVB[0])) Can you let me know how I should be reading integer arrays from JScript in the DLL and passing them back once I am done processing them ?? Thanks Tag: strcat problem Tag: 270193
  - 14
    - Since the program will exit anyway and the array is needed during the whole execution period... Tag: strcat problem Tag: 270186
  - 15
    - Is it ok not delete dynmical allocated memory in a console program I have a console program. It allocate class C { private: static double * p; ... { ... p = new double [10000]; .... } }; double * C::p; Any issue if I don't delete p[10000] at the end of program? So I needn't have another static method just for delete the array. Tag: strcat problem Tag: 270184
  - 16
    - msvc++ 2005 template question I have a library which I want to build on msvc++ 2005. however the compiler generates the following warnings and errors concerning the following source snippet: template <class EOT> class eoSelectivePopulator : public eoPopulator<EOT> { public : using eoPopulator< EOT >::src; eoSelectivePopulator(const eoPop<EOT>& _pop, eoPop<EOT>& _dest, eoSelectOne<EOT>& _sel) : eoPopulator<EOT>(_pop, _dest), sel(_sel) { sel.setup(_pop); }; /** the select method actually selects one guy from the src pop */ const EOT& select() { return sel(src); } private: eoSelectOne<EOT>& sel; }; --- output is: eopopulator.h(192) : warning C4346: 'EOT::Fitness' : dependent name is not a type prefix with 'typename' to indicate a type eopopulator.h(205) : see reference to class template instantiation 'eoSelectivePopulator<EOT>' being compiled eopopulator.h(192) : error C2923: 'eoSelectOne' : 'EOT::Fitness' is not a valid template type argument for parameter 'WorthT' eopopulator.h(192) : warning C4346: 'EOT::Fitness' : dependent name is not a type prefix with 'typename' to indicate a type eopopulator.h(192) : error C2923: 'eoSelectOne' : 'EOT::Fitness' is not a valid template type argument for parameter 'WorthT' eopopulator.h(204) : warning C4346: 'EOT::Fitness' : dependent name is not a type prefix with 'typename' to indicate a type eopopulator.h(204) : error C2923: 'eoSelectOne' : 'EOT::Fitness' is not a valid template type argument for parameter 'WorthT' I'm not too familiar with templates and the code looks okay to me. Can someone help me out? Thanks a lot in advance! Oliver Tag: strcat problem Tag: 270181
  - 17
    - Re: C++ with VS.NET and Twilight of the Microsoft Era Questions have arisen on this and other related newsgroups about the misleading or confusing naming of Microsoft development tools and other curious nomenclatures such as the terms "managed" and "unmanaged".. etc.. The bottom line is that you have to understand the Microsoft is not designing software to make things easy for the developer as they once might have (some time ago) but instead are creating their development environments to manipulate and position everyone to be locked into their proprietary software. In addition, they wish to streamline the process of outsourcing vis a vis the building and managment of their complicated components which have been twisted and tortured into shape for marketing rather than developmental positions. Can anyone forget OLE and COM and the great hype that Microsoft gave us versus the MESS that was involved when you tried to use them? Their goal remains the same - control of Internet applications, a subset of their goal of "control of the desktop". In this they have partly failed, much to their chagrin, because Java persists and there are major new ways to make desktop apps Internet aware - for example the remarkable Ajax, in addition to the gravest threat of all - Linux, which, despite all of its shortcommings, has the advantage of an active and open development community which means that each month that goes by Linux is catching up to, and probably already has surpassed, anythiing that Vista may offer. Microsoft has made a major strategical error in not updating the Windows File system to that promised for the new Vista operating system and this was a critical error which gives a major strategic opportunity to switch to alternative systems. Many IT managers, understandably tired of their desktop applications' software developers being unable to create everything they needed, foolishly took the short term solution of replacing everything in a giant database - this was the trend at least a few years ago, with the double failure that their IT budgets are now drowning in red ink to pay for the Oracle or whatever database, the server, the maintenance expenses and staff and they have everything locked into this which means in a few years they will have to expensively upgrade or else switch to a new system. Instead, the answer is to take this historic opportunity to break away from the expensive licensing fees and lock-in typical of Microsoft envrioronments and seek an alternative solution (yes, Linux!!) before Vista establishes itself worldwide and an entire generation of companies is again locked into the same old straightjacket. Yes, Linux can be tricky to work with - but much has changed and as I mentioned, every month a worldwide group of developers is improving and fine tunning Linux so that it has long since passed the point where it is appropos for business to use. At the very least, take a spare computer and put in a Suse 10.1 or Fedora distro and try it out - I believe you and your programmers will be rewarded. Are there some bugs or problems with LInux - Yes of course there are but XP and all operating systems have them too (for example, I have on my XP desktop a folder with some files in it which will not allow itself to be deleted, even though I am the administrator and even though I tried to remove the "read only" check mark from this file; this is on a fully updated windows xp professional desktop and Microsoft still has not fixed this bug, probably have not even acknowledged it). The end result is that YOU will now control your corporate, business, scientific and personal software - YOU will control the budget, YOU will not be forced to pay for "extra" information that should have been included with the operating system or the developement software in the first place. I know it is a difficult - even risky choice, but not is the time. Those braindead managers who perisist in automatically choosing Microsoft products and development systems will earn their just rewards as they gradually are outdistanced by managers of companies who are more agile, more creative, more intelligent and better able to adjust to rapid changes in markets and envrionments. GET BACK IN CONTROL. AVOID VISTA!!!!!!!! Jimserac James Pannozzi (former Windows Developer) Tag: strcat problem Tag: 270177
  - 18
    - C++ with VS.NET Simple question: Can you use Visual Studio.NET 2003/2005 to write and compile "regular" C++ assemblies aka NOT C++.NET assemblies (DLLs to be more specific). If not, what is the newest envionment for this (from Microsoft and Borland)? /Aidal Tag: strcat problem Tag: 270171
  - 19
    - status bar If a window has a status bar at the bottom, how does one normally change the text in it? Thanks. Tag: strcat problem Tag: 270154
  - 20
    - Tabstop problems in MFC/CLR C++ application Ok, I've got an MFC/CLR hybrid application (don't ask). It has two main forms, the MFC form, and the CLR form. Both of these forms can be open at the same time and the user can switch between them at will. Everything works just fine on the MFC form but on the .NET/CLR form, tabstops do not work at all. You have to use the mouse to click between fields on the form. Any ideas why? Tabstop is set to true and the TabOrder is correct but pressing tab while on the CLR form does nothing. I've done several searches but couldn't find an answer to my question. Thanks for your help. Tag: strcat problem Tag: 270153
  - 21
    - Exception Handling Hi, I'm trying to test a concept of global TRY CATCH in my service... basically as it starts I create one object and call a function to handle the functionality of the service. Sometimes there are crashes and not exactly sure where they come from... of course the source of the problem should be fixed... but we must avoid ugly GPFs to the users. So that's why thinking of a global TRY/CATCH...Is this a valid approach ? I was doing some experiment, but I can't even get a simple exception to catch... any ideas ? here's the simple test code below... and in the project settings I do have exception handling enabled. THANKS !! //cause test crash try { char *p = 0; cout << strlen(p) << '\n'; //this will cause GPF } catch(...) { //does not get here for some reason... } Tag: strcat problem Tag: 270149
  - 22
    - Using mapi to access different logon users? Is this possible? I have code to access the default/currently logged on user. But i dont see anyway to access the other users on the system. I'm not talking about identities. I'm talking about actual computer users. I have to do it with both MS outlook and Outlook Express. But for now i just need to get MS OL working. The code checks the registry to see first if it's the defualt e-mail client, if not it does another check through the registry to find it. At no point through this does it try to access the file/directory (C:\Documents And Settings\"username"), or anything similar. I've been searching and have come up with nothing even remotely close. So if someone could help i would greatly appreciate it! A example or even some pointers/keywords to search for would even help. Tag: strcat problem Tag: 270146
  - 23
    - c++ program does not run from server drive Hi I succesfully finished a simple form program in VC express 2005. I tested the program in another machine, after installing the runtime libraries and .NET framework 2, and is working fine. Now' i'd like to make the program available from the network server drive to other users (after they install the runtime and .net framework in their machines). But the copied .exe does not start from the server drive, resulting in an error screen before executing the program (it does it either from the local development computer or from the other machine). The error message doen't tell anything. any suggestion how to fix this? thank you Marcos Tag: strcat problem Tag: 270144
  - 24
    - c++ program does not run from server drive Hi I succesfully finished a simple form program in VC express 2005. I tested the program in another machine, after installing the runtime libraries and .NET framework 2, and is working fine. Now' i'd like to make the program available from the network server drive to other users (after they install the runtime and .net framework in their machines). But the copied .exe does not start from the server drive, resulting in an error screen before executing the program (it does it either from the development computer or from the other machine). any suggestion how to fix this? thank you Marcos Tag: strcat problem Tag: 270139
  - 25
    - serial communications What is the easiest way to do serial communications in VC++? Thank you. Tag: strcat problem Tag: 270137

This is a multi-part message in MIME format.

------=_NextPart_000_0042_01C6F5F5.F257F0C0
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Is there a way to make this work ?

char pszString[80];

pszString[0] =3D 0x00;

::strcat( pszString, "Set objXL =3D =
WScript.CreateObject("Excel.Application")\n\n" );

I can't make the 3rd line work because of the double quotation marks

------=_NextPart_000_0042_01C6F5F5.F257F0C0
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2800.1491" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY>
<DIV><FONT face=3DArial size=3D2>Is there a way to make this work =
?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT color=3D#0000ff>
<P><FONT face=3DArial size=3D2>char</FONT></FONT><FONT face=3DArial =
size=3D2>=20
pszString[80];</FONT></P>
<P><FONT face=3DArial size=3D2>pszString[0] =3D 0x00;</FONT></P>
<P><FONT face=3DArial size=3D2>::strcat( pszString, "Set objXL =3D=20
WScript.CreateObject("Excel.Application")\n\n" );</FONT></P>
<P><FONT face=3DArial size=3D2></FONT> </P>
<P><FONT face=3DArial size=3D2>I can't make the 3rd line work because of =
the double=20
quotation marks</FONT></P></DIV></BODY></HTML>

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Re: strcat problem by Alex

Alex
Sun Oct 22 18:31:48 CDT 2006

You need to escape quotation marks:

"...CreateObject(\"Excel.Application\")\n\n" );
^ ^
here and here

HTH
Alex

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Re: strcat problem by David

David
Mon Oct 23 07:09:46 CDT 2006

Rob wrote:

> Is there a way to make this work ?
>
> char pszString[80];
>
> pszString[0] = 0x00;
>
> ::strcat( pszString, "Set objXL = WScript.CreateObject("Excel.Application")\n\n" );
>
>
>
> I can't make the 3rd line work because of the double quotation marks
>

Rob:

This has nothing to do with strcat. In C/C++ you always have to escape
the double quote like this

\"

How else can the compiler know where the string ends?

David Wilkinson

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