void foobar(Base* base) { Derived* derived = dynamic_cast<Derived*>(base); // or static_cast derived->blabla = 0xC0FFEE; if (base->blabla == 0xC0FFEE) ... } On compilers with strict aliasing, is "derived" an alias for "base"? ...
When should I use OOP instead of an array? Does the size of my project matter? To provide a little background: I'm making a small program for my friend. Basically, he wants to add different scores to each other to be able to see his grade. (Yes, I know there's commercial software, but this is also a fun exercise.) Anyways, from time to ...
consider this: // set_iterator.cpp : Defines the entry point for the console application. #include "stdafx.h" #include <iostream> #include <set> using namespace std; int _tmain(int argc, _TCHAR* argv[]) { set<int> a1; set<int> a2; a1.insert(3); a1.insert(4); a1.insert(5); a2.insert(1); a2.insert(2); a2.insert(6); set<int>:...
Im trying to call the function: friend ostream& operator<<(ostream& out, stack::myItem& theItem); that is public to my stack object: class stack { public: stack(int capacity); ~stack(void); void method1(); ... private: struct myItem { int item; }; ... public: friend os...
Hi I am not able to create minidump form my process by changing system setting.So my Question is Will system create a minidump for user process when they crashes If yes , which setting i need to configure Or do i have to create minidump programmatically. How much effective minidumps are while investigating a crash ...
I am trying to do a homework assignment where we insert a string into a string at a specified point using a linked stack, hence the struct and typedef. Anyway, when I try to access stringLength in the StringModifier class inside the InsertAfter method, I get a run time error and I cannot figure out what the problem is. I should be able t...
I was just wondering how could i rename a file on unix platform using a c program without using the standard rename function.any ideas? rename a file in c ...
Hi, I'm looking for some API for printing. Basically what I want to achieve is to print set of pixels(monochromatic bitmap which I store in memory) onto the generic paper format (A4,A5..etc.). What I think that would be minimum API is: printer devices list printer buffer where I could send my in-memory pixmap (ex. like winXP printer...
I am just wondering how some things work in gamedev: I know, that the performance is actually crucial so there is still (and I think never will be) no place to use managed languages/platforms as Java/.NET just because of their performance. But... recently I have read somewhere here on SO, that even though people creating games use C++ ...
I've got a Car class and a Track class. The Car class constructor takes a road parameter which is supposed to be a 32x32 boolean array. Then I've got a Track class which creates a Car class and is supposed to pass the 32x32 array to it's constructor. Note that I've simplified the code somewhat by removing irrelevant bits and pieces. ...
I have a TCHAR array in my C++ code which I want to assign static strings to it. I set an initial string to it via TCHAR myVariable[260] = TEXT("initial value"); Everything works fine on this. However, when I split it in two lines as in TCHAR myVariable[260]; myVariable = TEXT("initial value"); it bugs and gives a compiler error: ...
Hello! I'm trying to have pointer to class methods, so I have something like: class foo { public: static void bar() { } }; void (foo::*bar)() = &foo::bar; That doesn't compile :( I get: > error: cannot convert ‘void (*)()’ to > ‘void (foo::*)()’ in > initialization ...
I have an abstract base class which contains a private nested implementation. visual c++ is giving me the following error when I try to instantiate the non-abstract nested implementation: error C2259: 'node::empty_node' : cannot instantiate abstract class (line 32) as far as I can tell, I've overridden all the abstract members of the ...
I am writing an immutable binary search tree in c++. My terminating nodes are represented by a singleton empty node. My compiler (visual c++) seems to be having trouble resolving the protected static member that holds my singleton. I get the following error: error LNK2001: unresolved external symbol "protected: static class boost::sh...
After going through this Problem (connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=329986) that was related with registry permissions, now again, Visual Studio comes with another error. I have the same error as this guy, I have searched all the internet and it seems nobody has resolved it yet. When I create a C+...
I saw the following question: http://stackoverflow.com/questions/98944/how-to-generate-a-newline-in-a-cpp-macro Let me give a brief requirement of a need in newline in a C++ preprocessor. Am working on ARM Realview compiler 3.1 on a code which uses embedded assembly code with C++ code. #define DEFINE_FUNCTION(rtype, op, val) \ __as...
I'm looking for a way to sign some data in C++ code which will then be sent to a PHP script for verification and processing. I want to use the OpenSSL module there, namely the *openssl_verify* function so I need something compatible with that. The application will be only for Windows so CryptoAPI might be fine but looking at the samples...
I have some DirectX applications I developed in college using DirectX August 2007 SDK. I would like to have August 2007 and the latest SDK installed so I can port my application to the newest framework. Does anyone have experience with having multiple frameworks installed, or is it discouraged? Thanks ...
How can I stop QNetworkRequest from buffering the entire contents of a QIODevice during a put/post to an HTTPS connection? It works fine when posting to HTTP but HTTPS causes the entire file to be read into memory before the post starts. ...
My boss would like to find a way for a running executable to ask Oracle, the size of the resources that the program is used. The purpose behind this is so that we can add to the user documentation/capacity planning documentation information on the size of the resources needed for each program. My Google-Fu is weak today, and I really...