Why this dont work: int size = 2; int array[size]; int main() { return 0; } It says the error: array bound is not an integer constant And this work: int size = 2; int main() { int array[size]; return 0; } Anyone knows the reason??' thanks ...
I have a vector which accepts vectors of GlDouble vectors. But when I try to push one it says: Error 1 error C2664: 'std::vector<_Ty>::push_back' : cannot convert parameter 1 from 'std::vector<_Ty>' to 'const std::vector<_Ty> &' c:\Users\Josh\Documents\Visual Studio 2008\Projects\Vectorizer Project\Vectorizer Project\Vectorizer Project....
Hello, If you create a window by using SDL_SetVideoMode(), you are returned a surface, not a window handle. Is there a way to get the SDL_Window handle? I know there is a SDL_GetWindowFromID function, but I'm also not sure how to get the ID, other than the SDL_GetWindowID function, which would require me to already have the window handl...
Ok, this is just out of curiousity, but why does the sleep function NOT work in a loop, or how can I Get it to work in a loop? for(int i = 0; i < 5; i++) { cout << i << endl; sleep(2); } ...
I try to write a simple MFC - Word Automation to save for every 1 minute. I follow this article : http://www.codeproject.com/KB/office/MSOfficeAuto.aspx And this is what Im trying to implement , I'm new to COM so I think there's problem here: my VBA is generated by Word 2010: ActiveDocument.SaveAs2 FileName:="1.docx", FileFormat:=wdFo...
I am just trying to further understand extern C functions. According to my knowledge, an extern C function is always a function you are trying call from an application that has already been compiled. Either a executable, static or dynamic library. extern "C" { HRESULT CreateDevice(); typedef HRESULT (*CREATEDEVICE)(); HRESU...
How do I write a std::codecvt facet? I'd like to write ones that go from UTF-16 to UTF-8, which go from UTF-16 to the systems current code page (windows, so CP_ACP), and to the system's OEM codepage (windows, so CP_OEM). Cross-platform is preferred, but MSVC on Windows is fine too. Are there any kinds of tutorials or anything of that na...
I have polygon chains similar to the following... ...given the chain in the image, how would I go about calculating a chain that defines the same shape but without crossing paths? Specifically, in the case of the image's input chain, the result I want looks like this: A1, A2, Intersect between A2 and A3, Intersect between A3 and A4,...
I'm trying to lay out vertices using the Boost Graph Library. However, I'm running into some compilation issues which I'm unsure about. Am I using the BGL in an improper manner? My code is: PositionVec position_vec(2); PositionMap position(position_vec.begin(), get(vertex_index, g)); int iterations = 100; double width = 100.0; double he...
#include <iostream> typedef struct _person { std::string name; unsigned int age; }Person; int main() { Person *pMe = new Person; pMe->age = 10; pMe->name = "Larson"; std::cout << "Me " << (*pMe).age << " " << (*pMe).name.c_str() << std::endl; return 0; } Consider the above code. The members of the struct...
Hello, I stumbled upon a curious problem with MFC. I have a Dialog where I check every Edit field on ON_EN_KILLFOCUS if it's valid. If validation doesn't go through I set focus back and show error message. This would be fine, if only I would close the dialog. I mean if I leave wrongly entered field and press close button or X, then ON_E...
Dears, I have been developing a project which use web cam as source of input to imitate as mouse event on mac. I'm always handle with opencv for image processing and Qt framework for GUI framework. My problem is, I want to write a program which imitates mouse. I don't know how to control a mouse out of the window form and sent the int...
I have the following code which is seems to be lead to the infinite loop: struct X { void my_func( int ) { std::cout << "Converted to int" << std::endl; } }; struct X2 : X { void my_func( char value ) { my_func(value); } }; What is the problem with it? ...
I'm a decent AS3 programmer. I work in games, and that is my reason for programming. While there is much I can accomplish with Adobe AIR, my understanding at this point is that learning C++ is probably a good direction to take. I would learn a lot of valuable lower level programming if I needed it down the road, and I would have an easie...
Hi, I wrote a simple 'Hello, world' application in C++ using Visual Studio 2008. I am able to run the app successfully on my local machine. BUt when I copy the exe onto another machine and run, it does not run. It gives the error that 'Application has failed to start because application configuration is incorrect'. The another system do...
Hi I have a code like A = B|C|D|E; Throwing the warning "suggest parentheses around arithmetic in operand of |" Expecting that expression needs high priority paranthesis for operators, tried the following ways: A=(B|C)|(D|E); one more as : A=(((B|C)|D)|E); Still the same warning persists. Please help me in resolving this. ...
Hi, I need to optimize some code that sorts a vector<pair<int, float >>a where the pairs needs to be sorted on the float value. The vector will have an length between 0 and 5. I've been googling and reading up on sorting methods in C++ but cannot find any benchmarks on sorting tiny data sets. For the system it's important be as fast as ...
i am using QT4 for my c++ programme i want to enable a SIGNAL automatically when my window is open so please tell me how do i enable a SIGNAL when my programme window open. i am new to QT so please give a detail description. Thanks ...
Well I have to create a simple box which rotates an ellipse and some text depending upon value from horizontalSlider/spinBox. The widget has to be resizable, And size of the ellipse has to change depending upon that. For now only the ellipse is being painted. The text painting will be added if this works. The problem is that if the windo...
I'm new to C++ and cgicc, and I want to know if there is an easy way to parse the get parameters to the cgi script? ?action=yes&function=no into an array or something like that? ...