I got the book "Programming Role Playing Games with DirectX 2nd edition" and I notice there are things in the book that are now considered deprecated. There is a whole Section on DirectPlay. And as much as I would like to avoid this section, I am afraid it might screw up the entire engine he is trying to build. So I was just curious to ...
I used to write code like this: class P {}; class Q: public P {}; class A { // takes ownership A(P* p): p_(p) {} scoped_ptr<P> p_; }; A a(new Q); With C++0x, should I rewrite class A as: class A { // takes ownership A(unique_ptr<P>&& p): p_(move(p)) {} unique_ptr<P> p_; }; ...
It seems I often spend way too much time trying to get a #define macro to do exactly what i want. I'll post my current dilemma below and any help is appreciated. But really the bigger question is whether there is any utility someone could recommend, to quickly display what a macro is actually doing? It seems like even the slow trial and ...
Hi, Looking for some help with arrays and pointers and explanation of what I am trying to do. I want to create a new array on the heap of type Foo* so that I may later assign objects that have been created else where to this array. I am having troubles understanding what I am creating exactly when I do something like the following. Foo...
I need to composite direct3d renders on top of a video feed, the way i have it setup the format i get the data in is 32 bit xrgb with a byte for red green blue and a throw away. Can I get it to render with an alpha channel so i can use it for better blending? ...
I was wondering is it safe to do so? wchar_t wide = /* something */; assert(wide >= 0 && wide < 256 &&); char myChar = static_cast<char>(wide); If I am pretty sure the wide char will fall within ASCII range. ...
I can't seem to find a way to convert, or find, a local identifier from a sublanguage string. This site shows the mappings: http://msdn.microsoft.com/en-us/library/dd318693(v=VS.85).aspx I want the user to enter a sublanguage string, such as "France (FR)" and to get the local identifier from this, which in this case would be 0x0484. Or...
Here is some code: void main() { GameEngine ge("phil", "anotherguy"); string response; do { ge.playGame(); cout << endl << "Do you want to (r)eplay the same battle, (s)tart a new battle, or (q)uit? "; cin >> response; } while(response == "r" || response == "R" || response == "s" || response == "S" ); } GameEn...
I want to start learning C++, so I downloaded Microsoft Visual Studio 2010 Express, and the entire application freezes and crashes every time I try to compile (debug and release build) something (I have tried running it in Admin Mode). Is there a good alternative compiler that I could still use VS 2010 as the IDE? ...
Hi all, I had a problem while hacking a bigger project so I made a simpel test case. If I'm not omitting something, my test code works fine, but maybe it works accidentally so I wanted to show it to you and ask if there are any pitfalls in this approach. I have an OutObj which has a member variable (pointer) InObj. InObj has a member f...
Can anyone suggest links/resources for sample project implementations of embedded projects using c++ or gcc. ...
As an example say I have a class foo that does not have a default constructor but one that looks like this foo:foo(int _varA,int _varB) { m_VarA = _varA; m_VarB = _varB; } How would I allocate an array of these. I seem to remember trying somthing like this unsuccessfully. foo* MyArray = new foo[100](25,14). I don't think thi...
I'd like to prevent clients of my class from doing something stupid. To that end, I have used the type system, and made my class only accept specific types as input. Consider the following example (Not real code, I've left off things like virtual destructors for the sake of example): class MyDataChunk { //Look Ma! Implementation! };...
A fast algorithm to find the size of the largest clique in a perfect graph(this one having odd cycles with at least 1 chord) with about 100 vertices ?? And is there any simpler method than brute force as this is a perfect graph and there should be a polynomial time solution to it. But I am not able to find the algorithm. Does greedy co...
I am just getting started with C++ and wanted to know does it really matter what template you chose in Visual Studio 2010 (for creating executables)? Like if I was creating a console application there is CLR Console Application, Win32 Console Application, and Win32 Project (description says it can be an application or a dll), what would ...
So I downloaded the ATI Stream SDK. I don't have a gpu now so I use the '-device cpu' and got the programs/examples in the OpenCl directory working by adding the directory to LD_LIBRARY_PATH etc. Now the problem is when installing QtOpenCl. configure script gives me: skkard@skkard-desktop:~/Applications/qt-labs-opencl$ ./configure Th...
Greetings all, I come from Java background and I am having difficulty with multiple inheritance. I have an interface called IView which has init() method.I want to derive a new class called PlaneViewer implementing above interface and extend another class. (QWidget). My implementation is as: IViwer.h (only Header file , no CPP file) ...
Possible Duplicate: Why do I need to use typedef typename in g++ but not VS? Hi, recently I accounted with a "simple problem" of porting code from VC++ to gcc/intel. The code is compiles w/o error on VC++: #include <vector> using std::vector; template <class T> void test_vec( std::vector<T> &vec) { typedef std::ve...
I have a super class like this: class Parent { public: virtual void Function(int param); }; void Parent::Function(int param) { std::cout << param << std::endl; } ..and a sub-class like this: class Child : public Parent { public: void Function(int param); }; void Child::Function(int param) { ;//Do nothing } When I ...
May I know how I can perform the following conversion? // el.strCap is char[50] // InsertItem is expecting TCHAR pointer (LPCTSTR) // How I can perform conversion? // I do not have access in both "list" and "el" source code // Hence, there is no way for me to modify their signature. list.InsertItem(i, el.strCap); And No. I do not want...