So I finished my first C++ programming assignment and received my grade. But according to the grading, I lost marks for "including cpp files instead of compiling and linking them". I'm not too clear on what that means. Taking a look back at my code, I chose not to create header files for my classes, but did everything in the cpp files (...
There's such thing as __w64 in Visual C++ 9. I came across it while trying to port my native C++ DLL to 64 bit. In particular in crtdefs.h there's this nice snippet: #if !defined(_W64) #if !defined(__midl) && (defined(_X86_) || defined (_M_IX86)) && _MSC_VER >= 1300 #define _W64 __w64 #else #define _W64 #endif #endif which if I get it...
Is there any official, or inofficial, #defines for when a compiler is Cpp0x compliant? Even better, for specific Cpp0x functionality (~#cpp0xlambda, #cpp0xrvalue etc)? (Haven't found anything about this on the net) ...
I'm on a custom C++ crash course. I've known the basics for many years, but I'm currently trying to refresh my memory and learn more. To that end, as my second task (after writing a stack class based on linked lists), I'm writing my own string class. It's gone pretty smoothly until now; I want to overload operator>> that I can do stuff ...
Is there a way to write this C/C++ code in Python? a = (b == true ? "123" : "456" ) Thanks so much! ...
I recently saw some code using macros like #define CONTAINS(Class, Name)\ private:\ std::list<Class> m_##Name##s;\ public:\ void add_##Name(const Class& a_##Name) {\ m_##Name##s.push_back(a_##Name);\ }\ int get_##Name(int pos) {\ return m_##Name##s.at(pos);\ }\ ...
Hello I am new to c++ and am wondering where to go about looking to print directly to the screen? For example the HUD interface that appears on laptops when you change the volume. I'm not really looking for any fancy graphics, just, say, a variable or info from a file. I've tried googling but havn't come up with anything yet. So...whe...
While I agree reading books is always a learning experience, sometimes you'd like to skip the theory and just jump till you reach the practical aspects. For example, I'd like to see a book that tells me that by writing: char* a = "a string"; the value of a will (usually) get stored in the readonly portion of an executable, and explain...
i've created a dll for gamemaker. dll's arrays where really slow so after asking around a bit i learnt i could use maps in c++ and make a dll. anyway, ill represent what i need to store in a 3d array: information[id][number][number] the id corresponds to an objects id. the first number field ranges from 0 - 3 and each number represents...
how could I tell STL, specifically for the method resize() in vector, to initialize objects with a constructor other than default, and with which parameters? I mean: class something { int a; something (int value); } std::vector<something> many_things; many_things.resize (20); more generally, how could I force STL to use my ...
If I have a windows console program written with c++, is it possible to retrieve that program's standard output, while the program is running? And if not, what would be the best way to rewrite the program? I know I could output to files and continuously check those files for updates. Is there another way? Is there a better way? ...
I want to add a class directly into a new class by avoiding public inheritance. For example I have a class like class size { private: int width; int height; public: void set_width(int w) { width = w; } int get_width() { return width; } void set_height(int h) { height = h; } int get_height() { return height; } ...
Hi. This is a very basic question, so please bear with me. Consider the following function in C++: void foo(int a, int b, int c) { //do something } can I call this funtion like this: foo(b=2, c=3, a=2) ? I suppose this have some sort of name (positional parameters, possibly). If you could clarify it in the answer too, it would g...
I need to fing simple TELNET example in LIBCURL (curl.haxx.se/libcurl) (C++) I searched over this site, but I don't found any simple example. I need only to connect to TELNET, authenticate, and send message. Thanks ...
void (*func)(int(*[ ])()); ...
Hi, does anybody know how to call C++ functions or methods via JavaScript. Need scripting like Lua/Python-C++ but with JavaScript. Thanks in advance. ...
I've got a C# program that needs to pass a char buffer to an unmanaged function. I've found two ways that seem to work reliably, but I'm not sure which I should choose. Here's the unmanaged function's signature. extern "C" __declspec(dllexport) int getNextResponse(char *buffer); The first option is to define the buffer as a StringBui...
Hi, When I try to serialize class with protected members, I get the following errors: "cannot access protected member declared in class NetElement". The idea is that I'd like to have one serialization function outside of class definition. What am I doing wrong? best regards, mightydodol Here is the code... // class definition clas...
That is, how can i limit the number of tokens/elements the Queue can hold? Example: I have a low level driver that can only process one request at a time. I am using the Ace activation Queue to limit the request (there could be up to 10 pending), but only one is allowed to go on the bus. The rest have to wait until the first request ...
Hi, I'm using VS2005 and the MS implementation of STL. However, the class type_info in is declared outside of "namespace std". This creates some problems for third party libs that excepts to find a std::type_info. Why is this so, and is there any workaround? Here is a sample from the beginning of typeinfo: class type_info { ... }; _S...