visual-c++

C++: Switching from MSVC to G++: Global Variables

I recently switched to Linux and wanted to compile my Visual Studio 2010 C++ source code, which uses only the STL, on G++. My Linux machine currently isn't available but I can try to tell you what is going on, first: As I try to compile my project, all global variables I use in main and which perfectly work on MSVC result in myGlobalV...

How to build gnu `libiconv` on & for windows?

Hello, I want to build a static library (*.LIB file) GNU libiconv on windows to be used with other libraries in Visual C++. Other libraries I'm using are built with "MultiThreaded DLL" (/MD) Runtime option. So, I need to build libiconv with the same option. Problem is the libiconv uses GNU build system and I want to compile with /MD op...

can not find my lib files to link

I am trying to find a lib file that I created. I changed the configuration type to static lib. Then I rebuild the application. When I go to the debug folder in windows, I see the .lib file. but when I create a new application and try to add it to "additional Library Directories" I go to the exact folder and it does not show up. ...

make_tuple with boost::python under Visual Studio 9

Trying to build the following simple example #include <boost/python.hpp> using namespace boost::python; tuple head_and_tail(object sequence) { return make_tuple(sequence[0],sequence[-1]); } available here, I end up with this compilation error under Visual Studio 9 error C2668: 'boost::python::make_tuple' : ambiguous call to over...

Having template function defination in cpp file - Not work for VC6

I have the following source code : // main.cpp #include "a.h" int main() { A::push(100); } // a.cpp #include "a.h" template <class T> void A::push(T t) { } template void A::push(int t); // a.h #ifndef A_H class A { public: template <class T> static void push(T t); }; #endif The code compiled charming and n...

Compiler optimization causing the performance to slow down

I have one strange problem. I have following piece of code: template<clss index, class policy> inline int CBase<index,policy>::func(const A& test_in, int* srcPtr ,int* dstPtr) { int width = test_in.width(); int height = test_in.height(); double d = 0.0; //here is the problem for(int y = 0; y < height; y++) { ...

put_Recorder not working for DVD

Hi i want to write a file into my DVD how can i do it by coding. I am into the development of this application but initially only i got stuck; please help m_hResult = CoCreateInstance(__uuidof(MsftDiscFormat2Data), NULL, CLSCTX_INPROC_SERVER,__uuidof(IDiscFormat2Data), (void**)&m_discFormatData); if (!SUCCEEDED(m_hResult)) { qDebug()<...

How to list all attached USB devices in Visual C++

In Short: I need to detect hotplug events of my USB CDC device by PID/VID and get the corresponding virtual COM port which was created by Windows in Visual C++ and in the end create a dll. I have a USB CDC device which I need to be notified of when connected/disconnected on Windows. My approach is to use RegisterDeviceNotification and a...

DVD burn IStream data

i want to write single directory into my DVD. How can i pass data in form of IStream. m_hResult = m_discFormatData->Write(m_streamData); How to show my directory to IStream Please help ...

visual-studio-2008 versioninfo for all files updated from one place

The version information, displayed when the mouse cursor hovers over the file in windows explorer, is set for a file built by visual studio in the VERSION resource. I would like to set the version in one place for all the files built by a solution, preferably when I change the version in the install properties. Is there a way to do thi...

False sense of security with `snprintf_s`

MSVC's "secure" sprintf funcions have a template version that 'knows' the size of the target buffer. However, this code happily paints 567890 over the stack after the end of bytes... char bytes[5]; _snprintf_s( bytes, _TRUNCATE, "%s", "1234567890" ); Any idea what I do wrong, or is this a known bug? (I'm working in VS2005 - didn't t...

[MSVC++] Breakpoints on a variable changing value?

I'm chasing a bug where a member value of an object seems to magically change, without any methods being called which modify it. No doubt something obvious but proving hard to track down. I know I can put conditional break-points in methods based on the variable value, but is it in any way possible to actually put a breakpoint on a varia...

Casting between variant and bstr_t causing inconsisten crash in Windows 2008

We have a C# application, calling a simple C++ wrapper class, that then calls an existing C++ DLL. The C++ code is all VC++ 6.0. We are getting inconsistent behaviour, but the crash, when it happens, always happens within the C++ wrapper DLL, and always in the same spot (have confirmed using painful logging statements). It never happe...

MSVC enum debugging

Is there a quick way of outputting the names of enumerated values? I suppose you know what I mean, and at all this isn't possible as of course all of this data becomes irrelevant during compile process, but I'm using MSVC in debugging mode, so is it possible? ...

Why does C++ linking use virtually no CPU? (updated)

On a native C++ project, linking right now can take a minute or two, yet during this time CPU drops from 100% during compilation to virtually zero. Does this mean linking is primarily a disk activity? If so, is this the main area an SSD would make big changes? But, why aren't all my OBJ files (or as many as possible) kept in RAM after co...

Visual Studio 2010 - Export (Project) Template menu option grayed out

In Visual Studio, I want to make a simple C++ project and export it out as a template, so I can use the template to start new projects to save me time. But the Export Template menu option is always grayed out. I've not once been able to click it. Anyone know why? Anyone know how to accomplish what I need (besides the obvious "make a co...

issue with dll's embedded manifest file.

I have created manifest file for my.dll. my.dll has a dependency on msvcr90.dll. In auto generated manifest file contains, ( i was using MS VC++ 2008 Express Edition) In side by side(winsxs) directory, there are three version on msvcr90.dll. my.dll started to using only the latest version of msvcr90.dll (9.0.30729.4148). Here in belo...

Tool to find if dll (or) exe and PDB file match

Hello All, Is there any tool to check if a DLL and PDB match? I need to debug a process and I can't afford to use the wrong PDB and start the process all over again. ...

This is a valid C code but not a valid C++ code?

In some library I'm using (written in C) its StorePGM(image, width, height, filename) char *image; int width, height; char *filename; { // something something } All functions are defined this way. I never seen such function definitions in my life. They seem to be valid to MSVC but when I compile it as C++ it gives errors. What is ...

Strange errors in Visual C++ :: 'malloc' : function does not take 1 arguments

Error 38 error C2660: 'malloc' : function does not take 1 arguments C:\VolumeRenderer\render.cpp 296 1 VolumeRenderer Error 39 error C2660: 'malloc' : function does not take 1 arguments C:\VolumeRenderer\render.cpp 412 1 VolumeRenderer Error 40 error C2660: 'malloc' : function does not take 1 arguments C:\VolumeRenderer\render.cpp 414 1 ...