51,593 Topics
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| | Hello all, I am trying to debug some code that I have come across. It is an array based BST, and I can not figure out why the parent's are not being recorded correctly. Essentially the first few inserts work, and then the parents become incorrect. Can anyone give me …  |
| | i am writing a decryption program that reads a file from another project solution and decrypts it then writes it to a new file in its own project folder. For some reason when i try and read the file in the program says that file doesn't exist. Im pretty sure …  |
| | I'm very very new to c++.I'm truing to built a program to make new appointment etc. [CODE]#include <iostream> #include <vector> #include <string> using namespace std; class Appointment; class MyDate { private: string date; string hour; public: MyDate();//constructor xoris parametrous// void set_date(string _date) { date=_date; } void set_hour(string _hour) { hour=_hour; … |
| | Please can someone check that I have understood this part of the code for my game or advise a better way of showing this? [CODE] //-------------------------------- // DIFFICULTY //-------------------------------- void Difficulty() { Top_Border(); cout << "\n Choose computer difficulty level.\n" " (E)asy\n" " (A)verage\n" " (H)ard\n\n" " ? "; cin … |
| | Hi all during my implementation to tree data structure, I make a method which combine two trees in one tree and called it attach. I declared 3 trees t1,t2,t3. and then called method attach which will create new tree and put t1 in right and t2 in left and then … |
 | I have been reading the 'inside the c++ object model' by Lippman and one of the sections has me a little confused. It is the section where the author explains how virtual tables are created and virtual pointers assigned, in the scenario of multilevel, single inheritance. If anyone here has … |
| | Hi, i am writing a program that plays “guess what number I’m thinking of…” with you. User Inputs guesses and output whether the number is too low, too high, or right-on. I already wrote the program to have the user guess what number the computer is guessing; however, can anyone … |
| | I've created a program that will process a file in a certain manner. The processing works fine, the problem I'm having is to open files that has a " " (space) in their dir or filename. See I wanted to be able to use my program in a easy manner … |
| | Hi, I have a server running with a Form based managed C++ app. It initializes with: [code] try { listener = gcnew TcpListener(ipAddress, PORT_lock); listener->Start(); // Start listening for client requests. listener->BeginAcceptTcpClient(gcnew AsyncCallback(DoAcceptTcpClientCallback), listener); [/code] The callback funtion is defined as: [code] public: static void Form1::DoAcceptTcpClientCallback(IAsyncResult^ result) { try { … |
| | Hi, I have a stream server application written in C, that I need to incorporate in a GUI C++ managed new program, but I am having trouble finding the equivalent of the C sockets function calls. The C apps initialize this way: [code] /* * Init socket */ if ( … |
| | my program writes wasd123wasd123, but i dont know how to make it writing 1ws2aasd22ww. How to make random presser? Can someone help me? [CODE] #include <iostream> #include <windows.h> #include <stdlib.h> using namespace std; int main () { for(;;){ Sleep(1000); rand(); keybd_event(VkKeyScan('w'),0,0,0); Sleep(1000); rand(); keybd_event(VkKeyScan('a'),0,0,0); Sleep(1000); rand(); keybd_event(VkKeyScan('s'),0,0,0); Sleep(1000); rand(); keybd_event(VkKeyScan('d'),0,0,0); …  |
| | Hello World ! I want to move a rectangle from going one point to another point in openGl. I am reaching the position but movement is so fast when I execute the program..it already in reached state. how to add delay so that I can see moving rectangle. |
| | So the first part of this program is to pull int data from a .txt file and put them into an array and then output then on the screen, but it seems that the code I have will only display very odd numbers (i.e. -808459), I do not know where … |
| | A file filter reads an input file, transforms it in some way, and writes the results to an output file. Write an abstract file filter class that defines a pure virtual function for transforming a character. Create one subclass of your file filter class that performs encryption, another that transforms … |
| | i need a command in c++ to scan the first keystroke the user enters ....(i.e) user doesnt have to press <enter> key...i need to scan as soon as he types....please help...thanks in advance.... |
| | [CODE]// quote.cpp - Script 4.6 // We need the iostream file in order // to use out and cin. #include <iostream> // We need the string file // For the string functionality #include <string> // Start the main function. int main() { // Declare the necessary variables. std::string quote, speaker; … |
| | Hi guyzz !! I have tried scouting the internet but could not get a suitable explanation. Please tell me with an example as to what are bit arrays and what are their applications. Any help would be greatly appreciated. Thanks |
| | [CODE] list<int>* compare(){ list q; q.push_front(1); q.push_front(2); return &q; } [/CODE] this method returns a pointer to an empty list how can I do to return priority_queue contain 1,2. |
| | Hi, How do i write a vector class to manipulate vectors in 3D; manipulate vector components in Cartesian, cylindrical, and spherical coordinate systems; add vectors; multiply by scalars; compute dot and cross products?  |
| | Please help how do i do this program?? Write a program to read data from a large text file. Within the file, the data are arranged in two columns, separated by white space characters, and comprised of a variable number of rows of data, the last of which contains nine …  |
| | Hi can someone please this code for me because i have the same error Here is the code: [icode] // Work please.cpp : Defines the exported functions for the DLL application. // #include "stdafx.h" #include <Windows.h> #include <wchar.h> #define ThreadMake(x) CreateThread(NULL,0, (LPTHREAD_START_ROUTINE)&x,NULL,0,NULL); #define ThreadMakeParam(x, param) CreateThread(NULL,0, (LPTHREAD_START_ROUTINE)&x,param,0,NULL); #define BEEP_ACTIVATED Beep(2000, …  |
| | I know I may not be ready for this but I want to make a client side application that will talk to a server and be able to inspect element. I know some Windows APIs and C++ but I am not sure how to log in the web-site with the … |
| | HEY i am trying to resolve my problem here is the code and the error [quote]2 [main] PA4 2768 exception::handle: Exception: STATUS_ACCESS_VIOLATION 2331 [main] PA4 2768 open_stackdumpfile: Dumping stack trace to PA4.exe.stackdump [/quote] Function [code] void BinarySearchTree::Insert(int val) { BSTNode *node, *p; cout<<node->GetLeftChild(); cout<<node->GetLeftChild(); p=root; node->setData(val); node->SetLeftChild(0); node->SetRightChild(0); if(p==0) { … |
| | Hi, I have this: void __fastcall TERDmarker::LecERDClick(TObject *Sender) { LecERD->Picture = *pct; //LecERD->Execute(); } //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- void __fastcall TERDmarker::openimage21Click(TObject *Sender) { TPicture * pct = new TPicture; pct->LoadFromFile("C:\Users\Yassar\Desktop\vpbmp"); // LecERD->Picture = pct; } What i am trying to do is, get openimage2click to open an image and save it to …  |
| | After i have read in a data arranged in two columns, separated by white space characters and comprised of M = 1001 rows(where the data may be considered ordered pairs of points x and y), how do i use linear regression to find the equation of a line that best …  |
| | Hi Got a comboBox on a form where the user can add url favorites, When closing form using the following code. [CODE] // Create the XmlDocument. XmlDocument^ doc = gcnew XmlDocument; doc->LoadXml( "<item><name>Favorites</name></item>" ); for(int i = 0; i < this->ComboBoxBM->Items->Count; i++) { // Add a url. XmlElement^ newElem = … |
| | im trying to learn pointer n the &(no idea the specific name for it); so my question is.. im passing the memory address of P to changePTR, why p is not taken the address of o(lets assume o is dynamic allocated), or even i want to change p to NULL. … |
| | So, I've been learning DirectX10 and have had alot of questions... I'm sure i've frustrated about all the people that are willing to help me with my DirectX problems (Sorry about that) but now i have a new problem. I have some source code that i downloaded from a site … |
| | Hello. I'm currently making a program that deals with a priorityQueue and inheritence/polymorphism. Student -> undergrad -> coop_student or student -> grad Now, the queue takes in the data and just puts it in a linked list and gives it a priority. That way, there are 3 queues and we … |
| | pls help me. i have got a school project to make a program that generates a shopping bill and shows the present stock at end of bill. also 1.the user inputs only the quantity and product code(thats where i am facing problem to feed the product codes in my program … |
| | hi, im working on josepus problem but this programe is not working well it is working in unlimited loop any one can point out the mistakes????????? #include<iostream> using namespace std; class node { private: int object; node *nextnode; public: int get(){return object;}; void set(int object){this->object=object;}; node *getnext(){return nextnode;}; void setnext(node … |
| | Hello, So I have a .txt file which is kind of built like: N 1234554321 Joe Jones Y 1234555432 Sarah Clark Y 1234321231 Kirah Williams N 1234212321 John Johnston The output, line by line, as the txt file is, and it works and all, I output "Y" or "N" I … |
| | Hello, I am making a program where you are entering 2 numbers which should be product AND sum of other 2 numbers. The program then outputs what are the other 2 numbers. For example if I enter sum 13 and product 22 the program will output 2 and 11. But … |
| | Hi! I need some guidance on this project. I wrote most of it, but i would like to improve my code by implementing more functions, and im open to hear suggestions on my code. My main concern is, every time the user picks one of the drinks it should subtract … |
| | [code]// header moduleinjector - header for class moduleinjector itself // as well as "core" moduleinjector-related functionality namespace Injection { class moduleinjector {...}; ... // ... = core related functionality e.g. non member functions almost all clients need ... } [/code] when you construct a moduleinjectior object you must pass in … |
 | Ok.. this is actually regarding game hacking, but I wish to gain knowledge from this procedure. Here is the scenario. The game is a server based multiplayer role playing game in basic 2d form. What I want to be able to do is simply manipulate what I see. For example.. … |
| | Hi, I am writing an FPS game in C++ using OpenGL. I am trying to write the crouch system but I want to make the crouch more smooth. At the moment you press the crouch key the character immediatly moves down. Here is the code: Crouch Down: [CODE] entity[0].crouching = … |
| | i am new to programing, i installed borland 5.5.1 c++ compiler so i practice my self.But i got some problems trying to compile, i dont know if the problem is from the i installed the compiler or something else. Below are the program i wrote and their compilation error. program … |
| | Hello, I've finally come to a point when I want to send my program over to some people to test, however, I've run into problems on that. This is my first time writing a program in managed code(C++\CLR), and so far, all I had to do was pack the redistributional … |
| | Help plz i am very confused :( how do i write a program that can input θstart, θstop, Npoints fill θ with values compute f(θ)=Asin(Bθ +C) + ...Dcos(Eθ +F) where A,B,C,D,E,F are variables  |
 | Hi there, I have a really quick question about a shuffling and dealing cards program I found in a book. here's main: [CODE]// Fig. 8.27: fig08_27.cpp // Card shuffling and dealing program. #include "DeckOfCards.h" // DeckOfCards class definition int main() { DeckOfCards deckOfCards; // create DeckOfCards object deckOfCards.shuffle(); // shuffle … |
| | How to make a looping statement on c++ that will give an output like this? ___________@ __________@@@ _________@@@@@ ________@@@@@@ _______@@@@@@@@ ______@@@@@@@@@@ _______@@@@@@@@ ________@@@@@@ _________@@@@@ __________@@@ ___________@ (underscore represent space) |
| | can you help me to solve an assignment in data structure using C++ ? |
| | [COLOR="Green"][I]CAN YOU HELP ME TO SOLVE THIS Assignment.... PLEASE....[/I][/COLOR] [COLOR="red"][B][U]THIS IS THE QUESTION : [/U][/B][/COLOR]Implement the linkedPriorityQueue class as defined below. Note the following: Each node in linkedPriorityQueue represents a customer. A customer can be regular or with a high priority. High-priority customers have their high_priority variable set to … |
| | Hi, I am a little bit troubled. I want to call a function in a separate file on a windows form. Here is my header file: [CODE]private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) { String ^OriginalText; String ^ConvertedText; OriginalText = this->textBox1->Text; ConvertedText = ParseBBCode(OriginalText); this->textBox2->Text = ConvertedText; }[/CODE] This means that … |
| | #include <iostream> #include <fstream> #include <string> using namespace std; int main () { float calculateAverage(int[]); char Grade(float); char line[100]; int marks[100]; ifstream input; ofstream output; clrscr(); input.open("k:\\input.txt"); output.open("k:\\OUTPUT.txt"); if(!output) cout<<"Output file error"; if (input) { while (!input.eof() ) { input>>line; cout << line <<endl; output<<line; for(int i=1;i<=5;i++) { int num; … |
| | right now my program asks for 5 candidates but i want to make the user input as many candidates as they want to. how would i go about doing that?? #include <iomanip> #include <string> using namespace std; int sumVotes(int list[], int size); int winnerIndex(int list[], int size); int main() { … |
| | i have a prob wit this code...it says variable letter is being used without being initialized...can anione tell me how n where should i initialize it...plz...m desperately in need of help...i m blank...m jst a beginner in c++... the c++ code is... #include <iostream> #include <iomanip> #include <fstream> #include <string> …  |
| | Hi, I have a few questions which I need answering please. I have a ListView and I need to get the text in the cell which is clicked. At the moment i have this but it only works for the first cell which is clicked and throws an ArgumentOutOfRangeException if …  |
| | Hello, I am a university student and I have very few courses this term so I have a lot of free time. In this term I want to improve myself and gain experience on C++ with algorithms and data structures. But I don't know how to do that... I have … |
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