2,055 Topics
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 | I got some linker error, couldnt find the mistake. What is wrong? [CODE]#include "myStack.h" //Imports the Stack header file containing the declaration of the member functions myStack::myStack() /*The stack is initialized as empty */ { count=0; } //end of Stack::Stack constructor Error_code myStack::push(const Stack_entry &item) /*If the stack is full … |
| | I'm very new to C++, my midterm is requiring me to read from a txt file I created line by line. Each line has different subject code that requires some calculations. My understanding was that you open your file and read in the first line in the file, thats the … |
| | I just started this program a few hours ago, and I am running into an error that I do not understand. I tried finding an answer on Google as well. First off, this is the bare bones of a code right now. I have not started any of the sub-functions … |
| | Okay so I have been trying to get this program to work for a long time. Basically it reads a text file then populates a structure that is designed to point to the four locations around that object: up, down, left and right. I believe I have the program figured … |
| | i have this problem with regards to java data the problem accepts input number and then output the sum of the square from 1 to the n(1 to the no. input) thus, if the input is 4 the output should be 288 because: 1 raise to 1 + 2 raise … |
| | Hello, everyone. I have a question to ask. According to The C++ Programming Language (3rd. Ed.) by Bjarne Stroustrup on page 405: "Members declared [COLOR="Red"][B]protected[/B][/COLOR]are far more open to abuse than members declared [COLOR="red"][B]private[/B][/COLOR] . In particular, declaring data members protected is usually a design error. Placing significant amounts of … |
| | I'm getting errors at every occurrence of my void definitions. "expected primary-expression before "void"" and "expected ';' before "void"" at my "void displayMenu ()" "a function-definition is not allowed here before '{" token" "expected ',' or ';' before '{' token' " At every future occurrence of void. Any ideas? I've … |
| | Hello Guys, I have implemented a linked list. And my output looks something like dis: ************************************************* The elements in the list : address is = 163196952 ADOC1100250100000119666 address is = 163196968 ADOC1100250100000119666 address is = 163196984 ADOC1100250100000119666 address is = 0 ADOC1100250100000119666 TOTAL NO OF ELEMENTS IN THE LIST ARE … |
| | Hi, I am stuck in file reading problem. I have tried various solutions but nothing worked. Actually I can't develop a logic to do so. I want to read some lines from file and pass them to structure. When reading a file you must use WHILE loop. I am posting … |
| | Hi, I am working on structures. One of the structure member is char array i.e string. When I assign another string to this then it throws the incompatible error. The code is the follwing. The problem line is commented. Code: [CODE]#include <stdio.h> #include <stdlib.h> #include <string.h> struct file_data{ char src_ip[18]; … |
| | Hello there everyone before I post my ( probably not elegant) code I Would like to first give the community an idea of what I am doing. I am writing a grade organizer program to where I can store a test, lab, or homework grade respectively. I have finished the …  |
| | I have tried to implement a stack class but i got stupid errors. There is a stupid error i know but i couldnt find it. [CODE]#ifndef STACK_H #define STACK_H /*Manual implementation of Stack class. By this way it will be possible to learn the advantages of Stack data structure over … |
| | Hi buddy,, can u jst refer me some links or share sum of ur own experiences about creating a text editor.....dat wut exactly the text editor is all about. I dont bother bout the inferface of it......i jst need how the core looks like....i.e. data structure implementation and all that....hope …  |
| | Hello everyone! I have task to write a program that would read a data from any txt file and visualize it on a bar chart using turtle module. I have to structure the program using modules and functions for nice design. The program must be fit for any other txt …  |
| | Is there a data structure that lets me push and pop things onto/off of a queue, but also doesn't allow duplicates? E.g. I want [code] queue a; a.push(1); a.push(2); a.push(2); a.push(3); [/code] to only have 3 elements, because 2 was added twice so the second time it is just ignored. … |
| | I built a program that is supposed to read in a data file that looks like this for example: 1 2 3 4 5 6 2 3 4 9 8 7 1 6 5 7 4 2 1 3 4 5 6 7 2 5 7 8 3 1 3 …  |
| | Hello, I'm working on a project that involves making two dlls: one of them is in Borland C++ (file1-bc.dll), the other one is in Visual C++ (file2-vc.dll). Right now I'm prototyping and trying to make them as simple as possible and to see data being exchanged from one side to …  |
| | I am planning on starting a project during summer break. I am going to create a employee clock in system for my work place (and anywhere else that wants it.) I figured it'd be good to get some practical experience before I graduate. The actual structure of the program I … |
| | Hello; I am trying to build a JDesktopApp The structure of a Session in a web app: a user logs in and a session specific to the user is saved.(basically). My question is dealing with a Desktop app. If a user logs in can the same concept be used? I … |
| | Hi everybody. right now i'm doing a hotel reservation system using php and phpmyadmin. The process involved 1) user inputs check-in and check-out dates (to check what rooms are available during the dates input) 2) database is queried for all room categories AVAILABLE within the dates indicated step 1 and …  |
| | Actually these are Some of Interviews Questions that i have to answer in an interview. I have got Some Confusion :-/ in My answers that why posting here .. So that Any Genius Can Answer these Question Correctly 1) Which of the following are true about Extension methods? 1) They …  |
| | Hello and Thanks, I am trying to create a teacher grade book for my school, I have a mysql database 'gradebook' and two tables 'students' and 'data' (mysql code below) to start, I am also using PHP. I have googled this to death and can't seem to come up with … |
| | Hiii Everyone i)Show diagrammatically a linked list of 4 nodes, where each node consists of one pointer and one integer data item. ii)Give a declaration of this data structure in a language of your choice. State what language you are using I want using pascal language Please give me quick …  |
| | Hello, I have two tables--QUESTIONS, ANSWERS. I store the questions in one table and the answers in the second. Table Structure--QUESTIONS Field 1: Question_ID Field 2: Question Field 3: Question_Type (There are 3 types of questions) Field 4: Step_ID (There are 15 steps in the program) Table Structure--ANSWERS Field 1: … |
 | Hello There, I am Using This code to backup mysql database from my hosting server. [CODE]#!/bin/bash # # MySQL Backup Script # VER. 2.5 - http://sourceforge.net/projects/automysqlbackup/ # Copyright (c) 2002-2003 wipe_out@lycos.co.uk # # This program is free software; you can redistribute it and/or modify # it under the terms of … |
| | Good Day! I'm a little bit lost right now on how to implement trees in java. We were ask to do a program that will display relationships (1st/2nd degree friends). I'm thinking of using vectors but our teacher said that we have to use Abstract Data Types (Trees). I've tried …  |
| | Hi guys. I have an observer/observable structure set up in my code that changes a bunch of TextField values with updated data, no big problem here. However, in my update(Observable obs, Object arg) method, I am trying to call another method to insert the new values into my database. I …  |
| | // hi guys actually i need some suggestion or help .. i want to add STRING capability in this following Queue program. currently it just eccepts the chars . so if somone can help me out in getting the String output. thanks [CODE]#include "stdafx.h" /***** Structure template *****/ struct list{ … |
| | Hi, I see the following error when i open my file with IE. <PARAM-CONF-CONTAINER-DEF UUID="ECUC:8e498821-8d5c-4512-88fc-8d4d90dca1ab"> <SHORT-NAME>DioChannelGroup The XML page cannot be displayed Cannot view XML input using XSL style sheet. Please correct the error and then click the Refresh button, or try again later. -------------------------------------------------------------------------------- A semi colon character was … |
| | Hi everyone, I'm sure I'm doing something silly here! Basically my constructor creates a pointer initialised to null, then in one of my functions I create an integer array on the heap using the new keyword. Now basically I have a data structure that needs to be copied, like so … |
| | Hi, I'm processing a small text file which contains information about the Winter Olympics. However I don't know how to keep the list the same for each country whilst making a new list for a different country. So far I've read in the lines and I have put the data … |
| | Hi there, Looking for some advice regarding the following hierarchy structure: [url]http://i40.tinypic.com/9a1us0.jpg[/url] I'm storing base class pointers in a std::list in my program: [CODE=c++]list<Vehicle*>mylist[/CODE] Is it possible for me to use Pure Virtual functions in the base class? For example: [code=c++]virtual int getMPG() = 0;[/code] Seems fine, as all derived … |
| | I have a Computer Science degree (long2 time ago) .. I do know Java OOP but i am now trying to pick up C++. I do have C and of course data structure using C or pascal. I have started reading Bjarne Stroustrup book (The C++ Programming Language - Special … |
| | Hello guys. Can I write structure data to child pipe? Usual examples are about writing char* or int type. I tried to write structure. But it does not look work. Will you check my code? ----------------------------------------------------------------------- [CODE]struct work_list { int heavy_rate; //0 - 5 level int work_owner; //thread id } … |
| | I am trying to get a WndProc Mapping solution to work so that I can avoid just making my WndProc static. In addition, a mapping solution is supposed to be great because I don't need to declare variables in my .cpp file, I can do it in my .h file …  |
| | I have a pair member data in a class: pair<double,double> memory; How can I change the firs or second element? If I simply write memory.first = 42 the compiler says read-only structure If I use memory = pair<double,double>(42,42) than: error passing 'this' argument I dont understand, please help me |
| | I am putting together a database with users, items, and tags. I have three tables to support this structure. The first is the "items" table, which contains all of the details about each individual submitted item. The second is the "tags" table, which has two columns: tag_id and tag_text. The … |
| | Hi everyone I am trying to get this done and it is not happening :to implement the method for the is Empty and is Full. I am suppose to check for an empty stack and check for a full stack But I am not getting it? Can someone see something … |
 | Hi and I have a mysql table that gets a few million records inserted per day and it seems to get corrupted very often. The current database structure is myisam but it keeps on getting corrupted. Are there any mysql data structures that won't corrupt even when restarting the mysql … |
| | been doing reiew questions to prepare for a c++ test, and was hoping someone could help me out by looking over the ansewers i have so far. what i have is in red. thank you very much :) -- Which of the following operations has the highest precedence? a. Postincrement. …  |
| | So guys for the sake of simplicity lets say i am developing a huge matrix multiplication program using C and i made a data structure which is able to represent this huge matrix into miniature blocks the down side is that this representation of block takes much more memory than … |
| | Hello. I am creating a template class derived from another template class to basically mimic the behavior of the STL stack for a school project. I am getting a compile time error when try to use a variable named "copy" when testing the overloaded '=' (defined in the base class) … |
| | Hello everyone I have been trying to learn the greater mysteries of linked lists and have come across an error that is inexplicable to me at my current level of understanding. I have written a program that attempts to form a linked list to store student information in the form … |
| | Hey, sorry if this question seems basic however I am relatively new to C++ and have done some searching around but to no avail. I then came across this community and thought I would try it out :) Basically, using Visual C++ 2008, I have a custom data structure, lets … |
| | So i guess the titles says it all i m trying to create dynamic structure of adjacency lists and i m having some errors since i m a little new in C anyone mind taking a look at it and tell me of any mistakes i might be doing STRUCTURES …  |
| | Hello, I was trying to implement data structures using file operations. I am using a data structure of two integers, one being the index number and other being the value. My actual aim is to recreate the file containing the data using a log. But, the program isn't running as … |
 | [code] void NewCustInfo(CustData &cust) { cout << "Customer Name: "; getline(cin, cust.name); } [/code] CustData is a structure that is declared, and the name data member of that struct is of type string. For some reason when I call this function(there are no compile errors), it displays the cout statement, … |
| | I need to take an n number of x and y coordinates from the user and figure out some information based on the inputted points (northmost, southmost, etc.) I wanted to know what the best data structure would be to store the inputted x and y coordinates and be able … |
| | I am working on an assignment and was wanting to know if one of u guys could let me know if I have 1. correct before I go to 2. Here are the instructions... 1. read in the data then displayed the data. 2 Add the following a. add a … |
| | [B]I've posted this in the MySQL forum but I have recently stumbled across this forum and it looks far more active so I'm hoping for a response here: Some notes: MySQL database, MyISAM type (debatable, I don't know why I would use InnoDB or how it differs from MyISAM, but … |
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