I have a large code base, originally C ported to C++ many years ago, that is operating on a number of large arrays of spatial data. These arrays contain structs representing point and triangle entities that represent surface models. I need to refactor the code such that the specific way these entities are stored internally varies for s...
I have a header file: class A { public: DeviceProxyPtr GetDeviceProxy(); }; DeviceProxyPtr is defined in a different header file like this: typedef SmartPtrC<DeviceProxyC> DeviceProxyPtr; I don't want to include DeviceProxyPtr definition header. If a return type was DeviceProxy* I could simply use predeclaration class DeviceP...
Hello everyone, I am using MacBook Pro Mac OS 10.5 with related version of XCode. I am new to this development environment. I am developing C++ console/terminal applications (File->New project, then from the list on the left "Command line utility", and on the right "C++ tool".). For C++ source code file, I want to print source file con...
#define __T(x) L ## x Found in code from one of the MFC source header file. It is mostly used for converting strings to ........ (I don't know what). If I am correct it converts strings to LPCTSTR...don't know what that type is either... I can't seem to convert char* into LPCTSTR. While MFC file handling, the following code will ...
How I can use a SOCKS proxy from my C++ socket program? ...
I just finished a project for my cryptography class and it all seems to go well (mostly). Because the key is generated randomly, I wanted to ensure it would work for all keys. Anyway, I ran it a bunch of times and hit a segfault at around the 30th run. I haven't been able to reproduce this segfault in gdb. Does gdb have a command, or is ...
I have a task to create class Encapsulation, with fields in available encapsulation sections. Then I must create an application showing all allowed and forbidden methods of fields access. What are the encapsulations sections in c++ ? And what methods apart from object.field or *object->field are there anyway ? ...
Hi Guys, I am refactoring some code to decouple GUI from some state. #include <StateObject> Class GUI{ ... StateObject A; void doSomething() { A->hullaballoo();} **void ReFreshMyGui() { //take state A and redraw }** }; State object is being shared by multiple classes to update the state but this Gui Object speciali...
Hello, I'm building a Windows dynamic library using the MinGW toolchain. To build this library I'm statically linking to other 2 which offer an API and I have a .def file where I wrote the only symbol I want to be exported in my library. The problem is that GCC is exporting all of the symbols including the ones from the libraries I'm l...
In MSVC++ #include files are searched for differently depending on whether the file is enclosed in "" or <>. The quoted form searches first in the local folder, then in /I specified locations, The angle bracket form avoids the local folder. This means, in MSVC++, its possible to have header files with the same name as runtime and SDK he...
Hello. I'm learning C++, i wanted to try implementing a very simple HTTP server that will just output a text message. I use Microsoft Visual Studio 2005. I'm getting: Line 20: Warning 'wsa' unreferenced local variable, while i'm trying to compile my source code. Am i missing something? Here's my source code. #include <winsock2.h> #inc...
Hi. I've written an explorer extension to display my custom file format in the Preview Pane. This works fine in Windows 7, but doesn't seem to work in Vista. The same DLL handles both thumbnails and the preview pane. The thumbnails side of things work in both Vista and Windows7. Adding logs to my code, Vistas only calling my DllGetC...
Try this code I created,when I use it in Borland C++ and try the remove-function a debug session opens up and it points to a file called "xstring",and it is saying "EAccessViolation". it points to this line in the file: return (compare(0, _Mysize, _Right._Myptr(), _Right.size())); //-----------------------------------------------...
Hi, basically exactly as the title says, I'm pretty sure its just a matter of some bitwise operations, I'm just not entirely sure of exactly what I should be doing, and all searches return back "64 bit vs 32 bit" etc etc thanks ...
Currently I'm working on a Server-Client system which will be the backbone of my application. I have to find the best way to send requests and handle them on the server-side. The server-side should be able to handle requests like this one: getPortfolio -i 2 -d all In an old project I decided to send such a request as string and t...
Hi all I am developing a library and a would like to provide my users a public interface separate from the real implementatino that is hidden in a namespace. This way, I could change only the class HiddenQueue without changing myQueue that will be exposed to users only. If I put the C++ code of HiddenQueue in the myQueue.cpp file the ...
I have a homework assignment with a number of questions. One is asking why the strcpy() function doesn't need the call by reference operator for CStrings. I've looked through the book numerous times and I can't, for the life of me, find the answer. Can anyone help explain this to me? It is an array of sorts so I would think you would...
Basically I need a replacement for Condition Variable and SleepConditionVariableCS because it only support Vista and UP. (For C++) Some suggested to use Semaphore, I also found CreateEvent. Basically, I need to have on thread waiting on WaitForSingleObject, until something one or more others thread tell me there is something to do. In...
I'd like to build the olb3d library with my visual studio 2005 compiler but this failes due to template errors. To be more specific, the following expression seem to be a problem: void function(T u[Lattice<T>::d]) On the website of the project is stated that prpably my compiler is not capable of such complicated template expressions ...
Hi, I am working in Train Traffic Controller software project. My responsibility in this project is to develop the visual railroad GUI. We are implementing the project with Qt. By now I am using QGraphicsLinearLayout to hold my items. I am using the layout because I do not want to calculate coordinates of each item. So far I wrote item...