49,766 Topics
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| | well i have made a .txt file (for save /reload blah blah ..) ..i want it blank before program runs ..how can i do it - or is there any way i can create a new file every time overwriting the existing file |
| | Hi, I would like to get an advice, lets take SDL lib as an example. Recently I've been declaring sprite sheets that certain classes use ( player, enemy... ) globally and thought that a better way would be to load sprite sheets inside a class thats using it but if …  |
 | Hi, I'm playing around with pointers and I found out something. For example, I have the array of objects of structure, and wished to point to it over the pointer which already points to it ( pointer to pointer to array of objects. ). Confusing? Code: [CODE]struct person{int number;}; int … |
| | Hello, I'm in a beginners c++ class and I need to write a program that calculates the area and perimeter of a triangle of sides: a, b, and c. The lengths of each side (values for a, b, c) are written in an input file (.txt), so the program has …  |
| | hi, can anyone tell me how to draw a line using opengl es2.0 |
 | hello, can anyone help me how to encrypt an image that is how the values in the image are read and saved in a file... I need to load an image and then the program will extract the pixel values and save it in a file and then the values … |
| | Hello, everybody! I've been struggling on implementing the Binary Tree data structure with some standard functions in it. After reading information from many sources and some work on my own, I've came up to this: [url]http://pastebin.com/B6Gtjb61[/url] Problems occur in the main funciton. What I can't understand is why does the … |
| | Can someone please help me break down the following examples so they are easier to understand because I don't understand them at all. Many thanks in advance Evaluate the following: 1) (true && true) || false 2) (false && true) || true 3) (false && true) || false || true … |
| | I am planing to outsource a project to create a business application, a CRM like system. Few says C++ and MSSQL while other .net and MSSQL. I would like to know what is the advantage going with C++ The system is going to be a web based platform.  |
| | hello guys! I'm programming in dark gdk and if you've read the dark gdk tutorials, it says in the game level section about importing levels from the fps creator. well i downloaded fps creator and even made my level but i cant get to know how i should use it … |
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| | [QUOTE]: Hello every one. I have described what program has to do and what i have did plz help me. Program has to take input from the user(i1) and print it, but if the user doesn't give any within 2 seconds program has to print some other variable(i2) ( which …  |
| | I was wondering if anyone has some good examples of running python functions and scripts within C++ using the Python C API. I can't seem to understand the ways of the Python C API, and was expecting something more similar to the Lua C API. The real question is "What … |
| | I am currently in my first year of electrical and electronics degree programme. I would like to ask for assistance on how to go about starting this project. A little guidance from you experienced people would really help me to complete my project. Thank you in advance. DETAILS : -four … |
 | Hi everyone, I am having a problem while trying to do an operator overload of operator<< I am getting: [CODE]Stack.cpp:96: `std::ostream& Stack::operator<<(std::ostream&, const Stack&)' must take exactly one argument Stack.cpp:96: no `std::ostream& Stack::operator<<(std::ostream&, const Stack&)' member function declared in class `Stack'[/CODE] I can't seem to find why I am getting … |
 | I am getting extra garbage at the end of the string returned by this function. Why? [CODE]char *read(char *fname) { FILE *file=fopen(fname,"r"); printf("Opening input file...\n"); if (file==NULL) return NULL; int length=0; char *ret=new char[length]; while (!feof(file)) { char ch=fgetc(file); char *temp=new char[length+1]; for (int i=0; i<length; i++) temp[i]=ret[i]; delete[]ret; if …  |
| | If there were 2 nodes like this: [url]http://i.imgur.com/21x2m.png[/url] Would newNode be pointing to itself if there was a code like: [CODE]newNode->next = intNode->next[/CODE] Also what would intNode be pointing at if this code was right after the one above it: [CODE]intNode->next->prev = newNode[/CODE] |
| | Hello, Im very very new at C++, I have this assignment that I can't figure out, if anybody could me, I'll be very grateful. Create a List class with the following interface (at a minimum): bool addItem(Node&) //add an item to the list, return true on success Node* getLargestNode( ) …  |
| | guys i have a prob i wrote the code for file handling the prob is that the code is working perfectly it also creates the file yet it doesnt store any thing in it and after the del the files it created in my hard disk he wont create any … |
| | Hi guys, I am transferring figures between a Neural Network and a Genetic algorithm. This means I have to do some scaling. I have found out how to scale to produce a value between 0 and n but not between -n and n or x and y. So all in … |
| | Hello, I'm working on a game, and for this game, I created a class. There is one object of this class for each player in the game: [CODE]class PlayerClass { public: PlayerClass(Nationality); // Constructor ~PlayerClass(); // Destructor sf::Sprite PlayerFeet; sf::Sprite Arms; sf::Sprite Body; sf::Sprite Head; int HitPoints; GameClass CurrentClass; }; … |
 | Hello; i wrote this code for a star triangle , but it told me it contains some errors , Do any 1 can help me plz ? it should be like this : [CODE]******* ***** *** *[/CODE] [CODE]include <iostream> #include<cmath> using namespace std; int main() { int n=4; for ( … |
| | Hello All, Currently I am working on an GUI using a tutorial video. In video when tutor types n = System::Convert:: , after :: a bunch of options appear like n = System::Convert::ToInt32. However, when I type same phrase n = System::Convert:: after :: no option appears. How can I … |
| | Got a program code so far to: [CODE]#include <string> #include <fstream> #include <iomanip> #include <iostream> using namespace std; //---------------------------------------------------------------------------- const char Cdat[] = "Data.txt"; const char Crez[] = "Rezult.txt"; const char Canalyzis[] = "Analyzis.txt"; //---------------------------------------------------------------------------- void TrimmText(const char dfv[], const char rfv[], const char afv[]); void AnalyzeLine(string &lin, string & … |
| | I want to create a do while loop for a statement to keep on looping until a following number or string value is passed. this is the code that i was trying to put in. [CODE] #include "vending.h" int main() { cout << "\n\n\n\n----------Welcome to the coolest vending machine!!!!!!!-----------\n\n"; cout …  |
| | What would happen if I (somehow) made an enum bigger than unsigned int? Each item in one is assigned a numerical value, I'm guessing that is unsigned int. Would it be boring like an error message or fun? Knowing what's allowed with naming the values there is more than enough … |
| | Dear friends: I am using " Seldon c++ libary for linear algebra, http://seldon.sourceforge.net/" in my heat transfer code. the paltform is vs2010. I use the Seldon::Vector<double> in my class mesh to store the x y coordinates. I include the "Mesh.h" in my main.cpp.but it gave me some error about seldon … |
| | Well I just want to know, how to give variable size for an array(Particularly, second subscript). For example, like this [CODE]#include<iostream> using namespace std; int main() { int a,b; cout<<"Enter the size for the 2D array"<<endl; cin>>a>>b; int*A=new int[a][b];[/CODE] for a its ok, But how to make it work for … |
| | Design and analyze an algorithm that searchs for an element x in a sorted table A(with n elements), so that its complexity is O(logD). D stands for distance, counting the amount of elements between the first element and the element x in table A. Simpler, D is the position of … |
| | Hello, I am putting together a shoddy game for a 48 hour game contest and I have a problem. When I run the program from within VS2008 (by clicking the start debugging button) the program runs fine. I'm doing this in release mode btw. However, If I try and run … |
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