51,593 Topics
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| | hi all, I have a binary file, then I try to read them and show the value to the screen, but what I got is always -13108. I don't know why. Here is my code [code] #include <iostream> #include <fstream> using namespace std; void main() { std::fstream f_in, f_out; short … |
| | im trying to write a cg pixel shader and just want to generate a random number too offset the colour of a pixel is there something i need to include, i tried using rand() but gave me errors thanks in advance |
| | hey i have a int **grid; pointer which should read from a txt file a grid which is made up for 0's and 1's, how would i make my grid pointer only read in 1 int for each index of grid[0][i]? txt file contains height and weight of the grid …  |
| | hello all , im trying to read a text file and display its contents. While i got the code running and the output was displayed perfectly for sometime , i started getting Abort(core dump) error . Am i missing something here ? im using HP-UX. [code] #include <iostream.h> #include <fstream.h> … |
| | Hi folks. I have some code which I'm trying to do network sockets with. My dev machine is Vista with C# Express 2008 and the target machine is running Windows 2000 (no visual studio) Here is my Network class [CODE] using System; using System.Collections.Generic; //using System.Linq; using System.Text; using System.Windows.Forms; … |
| | Problem Statement: Dynamic memory allocation/reallocation of an Integer array. Detailed Description: Write a program in which you have to: 1. Dynamically allocate an array of integers. 2. Take array size as input from user and allocate memory according to this size. 3. Take values of array elements as an input … |
| | Hi I have the following code which is my project I completed section 1 and 2 but it doesn't work could you help figuring why? [CODE=c++] #include<iostream> #include<string> using namespace std; void count(); void reverse(); void encode(); void decode(); int selection; int main() { cout<<"******************"<<endl; cout<<"Welcome To Project"<<endl; cout<<"******************"<<endl; cout<<endl; … |
| | Heres a snippet of my code: [code=cplusplus] int main(); { string cmd1; int cmd2; cout << "Command: " << flush; cin >> cmd1; if (cmd1 == "playlist") { cin >> cmd2; if (cmd2==XXXXXX) { cout << "Illegal command: " << cmd1 << endl; } else cmdPlaylist(cmd2); } return 0; } … |
| | I hav two points on the ground at different distances from me . I have the angle swept by my eyes in going from one point to the other. But a camera performs this action by first panning(moving horizontally ) and then tilting(vertical depression or elevation.) Is there a formula … |
| | Hello to all. On the internet I often find many C/C++ source files together with a makefile with extension *.in. These files should be used to generate a configuration script with GNU Autoconf. I don't know how to use GNU Autoconf. Do you know how I can compile the source … |
| | Ok, well I have an assignment, and I'll be needing some help. First off, I need help on counting the number of from a text file. I'm not sure if I should do a loop eg : [code]for (j=0, j<26; j++)[/code] or there may be an easier way. I have … |
| | can anyone please help me with converting from image to world coordinates? Once i get the world coordinates how do i make use of the Z coordinate to show the 3d? thanks in advance:) |
| | I'm writing a program where I have a variety of input commands. Lets say here are my three commands: info playlist # quit info - gives me information quit - terminates the program The problem: playlist # - The command playlist # means I need to cout a number of … |
| | Hi all, I am trying to reading stuffs from the text file, i don't know y but program can't read off the tab space eg. it reads Hi HappyDay 325 but it can't read Hi Happy Day 325 like where we used more than one spacing for one word or … |
| | what is array of void and why am I getting it in the following program? I finally have the first part done where I can loop the input. However, I cannot figure out what this array of void is. I'm getting "declaration of 'lastname' as array of void" in lines …  |
| | Hey guys, I have been learning c++ while working with memory management i seem to have gotten stuck, There are 2 classes Stack and Queue the stack works on the LIFO principle (last in first out) and the queue the opposite FIFO (first in first out). Now the program runs … |
| | I've tried just about everything. Can anyone give me some help.  |
| | Hi, I'm new to the C++ community hope you guys can give me some guidance. The program I'm making is suppose to read information from a file called music.txt Inside this file there is information about songs in the following format: Bandname, Songname, Duration of the Song, Here a partial … |
 | Hello, my first post here, mostly due to every question I placed on google the answer is here (normally answered by a fellow Anime fan called Narue, someone's got their thinking cap on ^_^) Anyhow the problem is as follows, I'm writing a 2D game engine using DirectX9 (not relivent … |
| | Ok so im totally new to C++......we use Dev in our labs I cnt seem to figure out how to store the column of a text file into an array. I understand how to input the file usinf ifstream.The columns have Lastname(initial), Id#, Age and Gpa. i thought js doin …  |
| | How would I make a program that can insert text into a text field in another program? Or click a button in another program? |
| | Okay, I've got a serious problem with std::vector, the code I'm working with is huge and it's got vectors left, right and center. The problem is that one of the vectors is having to reallocate itself elsewhere. This is causing the references to point to random things. For illustrative purposes: … |
 | Hi folks, Fresh newbie here. I'm taking a c++ class and I'm just a beginner. We have started to learn pointers and I discovered some puzzling behavior while messing around with the address operator [ICODE]&[/ICODE]. Here is my code snippet: [CODE] char letter = 'a'; int integer = 1; char … |
| | I'm having some problems trying to solve an apparent circular dependency in a project of mine. I'm working with OpenGL and FLTK to create a Robotics Simulation. The problem is that I've created a Class FLGLWindow which basically manages a window with rendering capabilities. I also have a Menu class … |
| | Searched your forums a lot, found a solution to my task, but still I do not understand why do I get the wrong answer everytime. It's always a 'correct-1' result. It doesn't depend on what the number in the string is. [CODE=C++]#include <cstdlib> #include <iostream> #include <string.h> using namespace std; … |
| | I'm trying to port some existing C++ code to OS X. The problem is that it doesn't want to load files to read from them. The code bellow illustrates this problem; when run from Finder it outputs "Failed to open input file.", however when run from Xcode it runs correctly. …  |
| | [B]Please help me how to do it. Thanks![/B] A 5-star hotel has 3 room types below: - Room type A, Price 80 USD / day. - Room type B, Price 60 USD / day. - Room type C, Price 40 USD / day. Room rental is calculated by formula: Price …  |
 | Hello everyone. This is not really a coding problem as it is more of a compiler problem. I am making an MFC application in Visual Studio 2005. When i open up the icon, i can edit it right there in that editor. But when i do, it works fine in … |
| | all i can do is get each line at a time.... how can i read it to only read till the space.... plz help.... heres my lil bit of code [CODE] while (getline(iofile,line)) { cout << line << endl; }[/CODE] plz i know i can use this aswell for line … |
| | I spent a lot of time trying to find out why "Message Box' made my program act like it crashed. Originally I had to bring up the Task Manager every time I allowed "Message Box' to run to shut down the program. After much experimentation I found that if I … |
| | [B]What would be the best way of doing this?..... [/B] I have a text file containing a list of music songs that shows the artist, song title & song duration. So I'm writing a program that opens the text file & reads the duration of each song, adds each song … |
| | Hi :) How do you write a program that reads a text file (music.txt) & stores it in a Data Structure. I hope that I explained this well but here is a little more info incase not [QUOTE]Write a program that reads the data from the music.txt file and store … |
| | Ok, here's the deal. I have this homework project I'm working on and while I realize no one is here to do my homework I am a little confused right now with how to get a function to read into an array. I put in the entire code but I … |
| | WHEN DATA IS READ FROM FILE AND I SELECT DISPLAY ALL IT FIRSTLY DISPLAY THE INFORMATION FROM THE FILE AND FILLS WHATEVER LEFT OUT OF THE10 RECORDS WITH WEIRD SYMBOLS. [CODE=cplusplus] # include <stdio.h> # include <string.h> # include <iostream> # include <fstream> #include <stdlib.h> using namespace std; typedef struct …  |
| | I'm making a program in Ubuntu with wxwidgets, the goal is to recognize faces but for now I just want to load an image into a frame. I load images by clicking on a load menu item which is linked to this function. [code=c++] void Face_Catcher_Frame::on_load(wxCommandEvent &event) { wxFileDialog * …  |
 | I have simple question. I have long code in my .cpp file with classes functions etc. I would like to divide it into separate cpp and .h files. What are rules governing the stuffing? Any good tutorial/example? Cheers :) |
| | Alright i am trying to read from a file so that it opens into the array temp_array. the idea is to have the data previously added to the file open into the array so i can search it and sort it this is giving me alot of stress it is … |
| | I'm writing a spellchecking program using a hash table. The hash table (a char * array) serves as the dictionary, storing words inputted from the file wordlist.txt. When I call the lookup function, a floating point exception occurs. Any suggestions you have on how to find what's causing the exception … |
| | Hey, I need help keeping a http connection alive. I have used setsockopt to set keepalive to 1, and in the http packet i set keep-alive to 300, but the server replies with: [code] Connection: close[/code] my packet looks like [code=cplusplus] string buffer2="POST "+P.path+" HTTP/1.0\r\nHost: "+P.httpUrl+"\r\nUser-Agent: Mozilla/5.0 (Windows; U; Windows … |
| | Summary of task: I have to write a program that adds 3 places to each char of a user input string to encrypt and vice versa for decrypting. Doesn't seem to hard, but as a beginner I am having an issue. I am having problems getting the user input string …  |
| | Hello, I'm writing an abstract program that keeps a record of Names and Phone numbers. I've created a Record class that inherits a Name and Phone class. All the functions work great except for delete. The delete function is supposed to replace the record value with "DELETED". The program says … |
| | [code] #include <iostream> #include <cstdlib> #include <cassert> using namespace std; struct node { int info; node *link; }; void insert(node *first, node *here, int x) { node *temp = new node; temp->info = x; if (first == NULL) { first = temp; } else { here->link = temp; } } …  |
| | Hi I am trying to write a function in a program that reads a 2d array withs 2 rows & determines the largest number & whehter that number is in row 0 or row 1. For example: [QUOTE]Enter distinct integers for a 2d array with 2 rows and 5 columns. … |
| | I need to use a webcam for a project where I need to control cam's internal parameters. I know that I can find in the market cameras with some API's, like logitech. For the other side I know I can do something with DShow and Windows Driver Development kit. Someone … |
| | I'm trying to teach myself C++ through internet tutorials and such. Right now I'm trying to write a program that find the diameter and radius of a circle if the circumference is entered, and does the same if one of the other two measurements is entered instead. I'm using switch/case … |
| | [CODE]You are to design a class class called Employer data members: char name[] long int ID double salary , and two constructors _Default construtor Person () _Copy constructor Person ( char n[30],long int id,double s) _setPerson (char n[30],long int id,double s) that allows user to set information for each person … |
| | Hello! I'm new in C++, and I have a basic question: When I have a function: [CODE] void foo(str* s){ char* p; p = new char[strlen(s)]; strcpy(p, s); cout << s <<endl; } [/CODE] This function will take the length of s and in bytes and will allocate that much …  |
| | [CODE]#include <iostream> #include <stdlib.h> using namespace std; void GetTime ( int*, int*, int* ); int CalcSeconds ( int, int, int ); int main() { int hr, min, sec; char another; int total_sec; cout << " \n\n Welcome to a time-conversion program ! \n\n " ; do { GetTime( &hr,&min, &sec); … |
| | I am working on this project for a class. I have input the students last name, first name, student ID and three test scores. I have to make the first step a function that stores the data into an array. Inside this array it is also going to give the … |
 | Hi people Could someone tell me what is the difference between runtime and compiletime polymorphism? thanks alot |
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