I built the non-dll version of OpenSSL on my windows box. Per the instructions I modified the build script to include debug symbols. I can link against them fine and they run. But when I try to step into an openssl function from my cpp code it just steps over. I know this is a total noob question but how do I fix this? I have all th...
I've been trying to statically link against a C++ library called Poco on Windows using the Visual Studio 2008 command line tools. I build my program with: cl /I..\poco\lib /c myapp.cpp link /libpath:..\poco\lib myapp.obj PocoNet.lib This results in an exe that at runtime requires PocoNet.dll and PocoFoundation.dll. I spent some time...
#include <cstdlib> #include <iomanip> #include <iostream> #include <string> using std::cout; using std::cin; using std::endl; using std::string; using std::setprecision; using std::fixed; //function prototypes void getInput(string &, double); void calcFedTaxes(double , double, double &, double &); void calcnetPay(double &, double...
Hi, I would like to be able to register my classes within a std::map or a vector, don't think about duplicates and such for now. but I don't want to register it within the class constructor call or any within function of the class, somehow do it outside the class so even if I never instanciate it, I would be able to know that it exists....
Hello, everyone! I am new for C++ and now work on a C++ project.The whole structure has been completed.But I have been wondering about how to build the vector of different objects and how to read the file since the beginning. In my problem, first I have to read a txt file with readObstacles(std::istream &fs) that has the following for...
Hello, I'm a C++ programmer with very extensive server programming experience. I'm however fairly bored at the moment and I decided to tackle a new area: 3D game programming, for learning purposes. Additionally I think this learning project may turn out to be good resume material in the future should I decide to work in this area. Inste...
I love that Qt is cross-platform but I want to make an application that will call into some Windows specific .dll's. Kinda like Google Chrome does with the glass on Windows Vista/7 (I know Chrome isn't written using the Qt framework just thought it was a good example). How can I do this in Qt? Is it feasible? ...
I was looking at a job posting recently and one of the requirements was that a person be a 9/10 in their knowledge of STL. When I judge my skills, to me a 10 is someone that writes advanced books on the subject, such as Jon Skeet (C#), John Resig (JavaScript) or Martin Odersky (Scala). So, a 9/10 is basically a 10, so I am not certain ...
I am working on a database project that requires me to code in C++. I have the framework for the relational database built using Microsoft Access. Since I would like a GUI for the user, I am trying to use Visual C++ 2008 to build it. I have tried to build a solution as a win32 console app, MFC app, and CLR app, each halting me with thei...
Hi, I'm writing this Rational number class for one of my cs courses, using C++. We're also asked to hand in a "user documentation", which is sth that i've never done before. What is an example of user documentation? what is the format of it? Thanks! ...
I read Scott Meyers article on the subject and quite confused about what he is talking about. I have 3 questions here. Question 1 To explain in detail, assume I am writing a simple vector<T> class with methods like push_back, insert and operator []. If I follow mayers algorithm, I would end up with all non-member friend functions. I w...
ive defined the following and filled it with elements: vector <vector<double> > my_vector; but i want a delete an element with a specific key... my_vector.erase(int(specific_key)); but it doesnt allow me. how would i properly dispose of the elements assigned to that key properly? ...
What I want to do is convert an epoch time (seconds since midnight 1/1/1970) to "real" time (m/d/y h:m:s) So far, I have the following algorithm, which to me feels a bit ugly: void DateTime::splitTicks(time_t time) { seconds = time % 60; time /= 60; minutes = time % 60; time /= 60; hours = time % 24; time /= 24;...
What is the difference between the 'delete' and 'dispose' C++ operators with regards to dynamic memory allocation? ...
I'm new to Windows development and I'm pretty confused. When I compile this code with Visual C++ 2010, I get an error "constant too large." Why do I get this error, and how do I fix it? Thanks! int _tmain(int argc, _TCHAR* argv[]) { unsigned long long foo = 142385141589604466688ULL; return 0; } ...
I want to have a base class which dictates the alignment of the objects which inherit from it. This works fine for the heap because I can control how that gets allocated, and how arrays of it get allocated in a custom array template. However, the actual size of the class as far as C++ is concerned doesn't change at all. Which is to say i...
I'm trying to do something like this in C++: if(){ int a; } else if(){ char a; } else { double a; } f(a); But I get an error from the compiler saying that a was not declared in this scope. I need to do a conditional declaration, how can I do it? Many thanks edit: I cannot move the function inside the conditional as the ...
hello i want to solve a system of n linear equations containing n variables using genetic algorithm. i am having difficulty in defining the crossover operation as the solution may consist of floating point values. how do i proceed. seems possible but this is my first encounter with genetic algorithms so your help would be great. suppos...
I am new to both Qt and Linux C++ development (although I have many years C and C++ development experience on Windows). I have some legacy C projects (source files and headers - [not using Qt]) that I want to compile into shared libs on Linux. I am proposing to store my projects under the following structure: /home/username/Projects/p...
I'm trying to write a program in C++ that is able to burn an Audio CD without gaps between the tracks. From what I found, this has only recently been made possible using IMAPI, but should be possible since Windows XP SP2 and Vista SP1. The problem is that I can't find any example code on how to do this. What I did find is that I need to...