I've spent the last 5 years developing software with Windows as the target OS (mainly C++ and C#). Recently I started to become interested in development for other environments as well, Linux for example. So I guess I actually have two questions. The first is: Do you find developing software for Linux harder than developing for Windows?...
I want to know if there is any site like cpluplus.com which explains all the headers files and its available features, but for Linux ? Like for example explaining the sys/, net/, dns/* includes ? I came up with this question because I was searching for a sys/reboot.h reference. Any Ideas ? ...
I want to write application which paste some text to active window on some keystroke. How can i do this with Python or C++ ? Update: Sorry people. I think i don't describe problem clearly. I want to write app, which will work like a daemon and on some global keystroke paste some text to current active application (text editor, browser,...
I'm looking to write a self defragmenting memory manager whereby a simple incrementing heap allocator is used in combination with a simple compacting defragmenter. The rough scheme would be to allocate blocks starting at the lowest memory address going upwards and keeping book-keeping information starting at the highest memory address...
Now that we know that Concepts is not part of C++0x, I am looking for methods to impose restrictions on types in template functions. Here are two examples: If we want to make sure that a given type is an integer, we can use: template <class N> inline int f(const N n) { if ((N)0.1 != 0) // if type of N is floating-poi...
I'm trying to write a simple vector class with templates, but when I split it into a .h and a .cpp file, I get these errors: undefined reference to vector<int>::vector()' undefined reference to vector::add(int)' undefined reference to vector<int>::add(int)' undefined reference to vector::remove(int)' the code: http://pastie.org/623584 ...
Okay I have a bit of a problem which i'm struggling to solve. Basically I have an abstract functor class that overloads operator() and derived objects that implement it. I have a function (part of another class) that tries to take an Array of these functor classes and tries to pass a pointer to a member function to the std algorithm fo...
Hi, I am going to do a project in Data Mining related to image clustering (in C++) .I am looking for a powerful library which is helpful in image processing, linear algebra and 3d graphics. Any thoughts? Thanks. ...
How do you emulate Python style generators in your favorite language? I found this one in Scheme. It must be interesting to see other implementations, especially in those languages that don't have first-class continuations. ...
Let's say I have a simple Server with a template which accepts a Client as it's template argument: template<class T> class Server<T>{ Server(int port); } and a Client is defined something like this: class Client{ Client(Server<Client> *server, // <-- int socket); }; But I also want say, have the class User inheri...
#include <vector> #include <functional> #include <algorithm> using namespace std; struct Foo { int i; double d; Foo(int i, double d) : i(i), d(d) {} int getI() const { return i; } }; int main() { vector<Foo> v; v.push_back(Foo(1, 2.0)); v.push_back(Foo(5, 3.0)); vector<int> is; ...
I'm making a game in native vc++ (not .Net) I'm looking for a way to play a noise (maybe 8 bit or something) through the real speakers (not internal). I know about PlaySound, but I don't want to make my EXE big. I want to program the sound. Is there an api way (kinda like Beep() ) but that plays through the real speakers? Thanks ...
I'm looking for a C or C++ diff library. I know I can use the Unix diff tool in combination with system or exec, but I really want a library. It would be handy if the library could perform patches as well, like the Unix patch tool. ...
Me and some peers are working on a game (Rigs ofRods) and are trying to integrate OpenCL for physics calculation. At the same time we are trying to do some much needed cleanup of our data structures. I guess I should say we are trying to cleanup our data structures and be mindful of OpenCL requirements. One of the problems with using op...
I am writing an application where in a certain block I need to exponentiate reals around 3*500*500 times. When I use the exp(y*log(x)) algorithm, the program noticeably lags. It is significantly faster if I use another algorithm based on playing with data types, but that algorithm isn't very precise, although provides decent results for ...
I have an assignment from my programming class, which is very poorly worded... The following line really stumps me. We're creating a class called FloatArray, which contains an array (arr, which is just a pointer to a bunch of floats). The default constructor FloatArray(); should create array of zero width and zero height. I have ...
I have two qt .pro files, both using the lib TEMPLATE and staticlib CONFIG. The first library (lets call it 'core') is a dependency for the second lib (I'll call it 'foo'). In fact, there's a class in foo that extends a class in core, I will call this class Bar. When I instantiate the class (which is defined and implemented in foo, but ...
I'm pretty familiarity with c++. I'v made a few games like tetris and solitaire with it. But what I would really like is some nice textured graphics for those games :-p GDI just isn't doing it for me anymore. Really, all I would need to know is: DX scene initialization making something simple like a round rectangle and basic shapes ab...
I have a faulty hard drive that works intermittently. After cold booting, I can access it for about 30-60 seconds, then the hard drive fails. I'm willing to write a software to backup this drive to a new and bigger disk. I can develop it under GNU/Linux or Windows, I don't care. The problem is: I can only access the disk for some time, ...
I'm trying to make a flashing object, i.e., increment it's alpha value from 0 to 255 (gradually) and then back down to 0, and repeat. Is there a way I can do this without using some boolean? Getting it to increment is easy: alpha = time.elapsed()%256; But what's a nice way to get it to count back down again after that? ...