51,593 Topics
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 | Hi there, I have a question about a really simple program. The code below doesn't work, the compiler comes back with "fatal error C1083: Cannot open include file: 'ofstream': No such file or directory": [CODE]#include <iostream> #include <ofstream> using namespace std ; int main( ) { ofstream myfile("newfile.txt") ; myfile … |
 | I've been doing research on data structures but I just can't really wrap my head around what they are. I'm thinking classes, enums, structs are data structures; but then I also see linked lists and queus, etc that I don't understand either. Could anyone tell me what they are, what …  |
| | I am writing another header file. And I am still trying to get my head around these templates. They seem extremely easy to understand but I have had the compiler moaning at me for the last 2 hours. This is what i have: [CODE] #include <iostream> #include <cassert> using namespace …  |
| | Greetings fellow programmers! I'm doing a computer vision project in my AI class and am looking for some tips. My task is to read a bitmap into memory and alter that image file and find an object within it. In my case, I'm searching for a box that appears in …  |
| | I have no syntactical errors, but i cant figure out why this wont work. Heres the code. [CODE]#include <stdio.h> #include <string.h> #include <ctype.h> #include <math.h> int main (void) { char str[100]; int i = 0, line_count = 0, len = 0, alpha = 0, lower = 0, upper = 0, … |
| | im trying to get my code to perform dijkstra's algorithm on my adjacny matrix, it works great for the inital row (0) but i cant get it working for any other value?! [CODE]void dijkstra (int a[size][size], int matSize, string CityID[size]) { string startCity; cout << "Enter start city : "; … |
| | I want to say thank you to everyone in advanced for all the help that has been provided. I am currently stuck on two more items on this program. Currently I am completely stumped on how to create a bar graph using the information gathered by the program. Some reason …  |
| | my program is to open a input file, i do not know what words is in the file, and i have to open a command file (a text file), the command file is to tell the program what word to search and what to do, also i do not know …  |
| | [ATTACH]17854[/ATTACH] [ATTACH]17855[/ATTACH] [ATTACH]17856[/ATTACH] Guys I am trying to help a friend of mine with this project they have due in a few days and because I program in Java mainly I am a bit rusty with this. I can not figure out why my getInput function shows up under the … |
| | The point of the program I am making is to have a pure abstract base class called BasicShape and have 2 child classes, Circle and Rectangle. I have the program written but with one unresolved error. [B]Main.cpp file[/B] [CODE]#include "Pure.h" #include <iostream> using namespace std; int main() { Circle pizza(2,2,10); … |
| | Hi guys, im having problems verifying date. My exact problem is that even if user inputs an incorrect condition, the system still stores it into the class. My question is, where do i put the conditions so that the error gets printed AND the user gets to reinput that value … |
| | can anyone please give me c code for aging in operating system? |
| | I am sure there is nothing wrong with this... I am racking my brain as to why it wont compile. [CODE] #include <iostream> #include <string> using namespace std; class Vehicle { public: Vehicle(); Vehicle(string m, int y); void print() const; protected: string model; int year; }; void Vehicle::print() const { …  |
| | Hi, I'm trying to create a simple program in Win32 and I can't find how to accept input in the form of text. Like "What's your name: ___" then the user enters their name and my program can evaluate the input. I have already googled this for a long time, … |
| | kk so I am having a problem on a mac where the audio doesnt work very well unless my finger is on the touchpad... it works perfectly smooth... I want to write code to detect whether the finger is there or not and if it isnt then move the mouse … |
| | Hi, I need to make a simple calculator that just does addition and subtraction. But the program should keep a running total of the calculations entered like this: sum = 0 12 + 3 sum = 15 5-2 sum = 12 1+1 sum = 13 But it also needs to … |
| | anyone have any ideas? for some reason uni forgot to include lectures notes on this, yet decided to base homework on it. i get the general idea just not sure how to implement it. |
| | Hi friends, As i a writting small C program to pass the structure pointer in the function. i am endup with small problem, plz let me know how to crack this one? ///////////////// [code] void function1(void *); void main() { int size_offset = 0; typedef struct { int a; int … |
| | I have joined our local high school's FIRST robotics club, but their programmer graduated last year, so who got selected? The wimpy freshman: me! I am an intermediate programmer (PLEASE don't look at my previous posts, I now know two languages, and am better). So I downloaded an instruction booklet. … |
| | For my class, I am creating a rock paper scissors game. My code is not all the way done, but I am stuck on a certain part of the process. For some reason, I am getting errors on the "==" in: [CODE] while (true) { human = humanChoice(); computer = … |
| | Hi, Please can anybody help me a little bit with my assignment , The thing is that I was kinda ill , so i missed many important lessons, but now teacher told that i need to do assignment, Can anybody help me with beggining , * we use Xcode. 1. … |
| | Can anyone tell how to call a class function from a switch statement example [code] number number::operator+(number) { inputs } [/code] [code]switch (option) { case 1: number number::operator+(number); break; [/code] IS THAT THE CORRECT WAY TO CALL THE ABOVE FUNCTION? |
| | Any people can help to do this? * ** *** **** Urgent~ |
| | I am new to this. I am trying to write code to update every other element in an array. Here is all I have.... can't find anything to show me how to do this. [CODE]#include<iostream> using std::cout; using std::endl; int palpha = 0; int main() { char* alphabet[] ={ "A", … |
| | Hi can anyone show me how I can use Directx 10 under win7 to render YUY2 video stream to overlay screen. MY display card support overlay using DirectShow and DX8 but im trying to migrate now to win7 and dx10 but am not shure how to make dx10 implement overlay … |
| | Hi all, I am very much new to any forum or discussion.I am working on C++ on ubuntu. My problem is I have to transfer a file from my domain to a remote server which maintains these files using sftp which is provided by my linuc machine. I am not … |
| | Hello guys, I know it's been asked a lot about it here, but that's what I should do (though I'm not quite sure what the teacher wants, is n should be 100, 1000 and further, or use prime numbers. The "first draft" is due this Sunday, the "final draft" is … |
| | I have just started a basic class in programming and I am totally lost. Can someone help me out? I have to write pseudocodes and create flowchart and don't have a clue. I need help with the following: flowchart, pseudo-code, Input and Output variables, and also an Program Desk Check … |
| | hello , i want a formula for calculating the median of an even array |
 | Hi. I would like help on undoing and redoing using the memento design pattern. I want to save a state that a board is in. Like a chessboard. If the user uses the undo option a previous board should be loaded and all of the states that the pieces was … |
| | Greetings from Portugal I've been stuck for some hours now, since I can't get my n00b code to work as I want. Could someone give me a hint of what to do or what am I doing wrong? I have a file that writes something like this: 1001,Loja1,10 1002,Loja2,20 And … |
| | hi evereyone, i have some problem related to graphics in c++ that is when i include graphics.h in my program and use graphic command like draw line etc..then suddenly windows has been closed and messages appears that "NTVDM CPU HAS ENCOUNTERED AN ILLEGAL INSTRUCTION", and some error code and two … |
| | I'm writing an application to patch assembler instructions according to memory addresses. I have been using C/stdio for FILE operations (fopen, fseek, fprintf), but I would like to have a C++/fstream implementation as well (.open, .seekp, .put). I've had no problems patching file memory with stdio, but fstream/ofstream methods corrupt … |
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| | We have this massive project due tomorrow - a chess game that enables two or more players to play against each other. We have a board class, that contains a 2D array of Piece object pointers representing the lay area of the board. In the board constructor, the Piece array … |
| | I just need a little advice. This code I have written works well. The only problem I am having is that the output is not lining up and I don't know what to do. If everything was entered line by line I could get it to line up. Since it …  |
| | When my code (below) is executed, a error message is triggered which says "The operation completed successfully." To give this some context, hFileMap is valid; I have checked this with my debugger, and other operations can easily be performed correctly on this handle that yield correct results. The only weird … |
| | hello , i want to ask is there any function that gets the mode of an array without using pointers ???plz tell me if there is |
| | Hello I created the following project to show you guys how I plan to do things. But my main project will be bigger and will have multiple classes. I'm just trying to get this to work properly so I know I'm using good practice when coding. ok, lets begin :), …  |
| | [B]friend istream & operator >>(istream &, vector &); [/B] Its a operator overloading code. which should follow the genric syntax like "returntype class operator op(argu)" to declare the function.. Here istream is class and >> op....arguments going to have referal type.... [B]Question is what "&" signifies, the one is before … |
| | Hi,i'm new here..and need help for my calculation problem..pls tell me,what is the connection between this 4digit numbers..exp : 8910,0556,and 2570..how i calculate this 3 sets of numbers to get eighter 3540,6749 or 0676..canyou solve it for me..thanks |
 | Hi.. first of all, I want an answer in details if u dont mind.. When we use a class with Pointer data members,why do we need to: 1. include a destructor and a copy constructor in the class 1. overload an assignment operator which return pointer this for example: // … |
| | Hi everyone! I really need help with this big program. I got stuck! I tried to compile but it didn't work. I think i still miss some parts of the program needed, but i cant figure it out. Please help me! Thank you in advance! Here is what i need … |
| | I am absolutely HORRIBLE at passing functions, and even more so with passing arrays. I'm trying to pass my "grades" array to the other functions, but I know I have to do it by reference since I can't return it. Can someone help shed some light? [code]#include <iostream> #include <fstream> …  |
| | I need help with a C++ problem π= 4(1/1- 1/3+ 1/5- 1/7+ 1/9- 1/11+ … 〖(-1)^n /(2n+1)+ …) How many terms of series (1) you need to use before you get the approximation p of π, where: a) p = 3.0 b) p = 3.1 c) p = 3.14 d) …  |
| | I have a file txt file with the contents [TEX]10031James Cameron2346789Spanish TownSt.Catherine12 Clover CrescentDeluxeSinglePassport[/TEX] I want to read from the file baesd on a seraching fro the id number and returning the datat to a class. But it seems I can't read from the file. Heres is the code below. … |
| | Please help me. I am having trouble implementing the breadth first search algorithm for the classic 8 puzzle problem. I have some code if anybody can help. Or is there any tutorials or examples that you can link to me? My problem is that it only solves about 5 different … |
| | Hello It's one year that I use G++, now every time that I try to compile somethings I see always: g++ error: process: No such file or direct I use Ubuntu and I always used to compile a file (ex. hello.cpp) g++ ./hello.cpp -o hello and after ./hello I tried … |
 | I am trying to calculate the height and width of a char array? The char is like an Ascii art of a card. And what I am trying to do is calculate how long the width is before the '\n'(newline), and how long the height is till the null terminator. … |
| | hi i am trying to explicitly link a dll to my console application however LoadLibrary() keeps returning with error 126: the specified module could not be found the file is in the same folder as the exe, and i've tried moving it to system32 and it's the same error, so … |
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