49,757 Topics
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| | hi, I have doubt about virtual function behaviour in below code snippet. As per my understanding class derive2 didn't override the virtual function fun() , so it is obvious that its object can't be assigned to the Base class pointer *p and even individually we can't instanciate the object of … |
| | Hi, I have overloaded new function but unfortunetly never been able to execute global handler for requesting more memory access on my compiler. I also don't understand as per below code snippet if we invoke the global handler for requesting more memory how it is gling to allocate to P. … |
| | Hey guys! I will be hosting an online hackathon next weekend. Please join (50 bucks reward if you win)... In this case, you are given a theme and you need to code something relevant to that theme. The coolest program will get the prize money. You are given 24hours to … |
| | Hello Everyone , Can some one please tell me what is wrong in my program. This is basically a program to insert a new node in a binary search tree. The thing is that my insert function is working correctly and the node is getting inserted which i am verifying … |
| | I am new to filing and have not much idea about it. I have written a code that tries to read an ASCII .pgm file named pic.pgm and writes it as mypic.pgm file: #include <fstream> const int MAXHEIGHT=221; unsigned char *bitmap[MAXHEIGHT]={'\0'} ;// pointers to each pixel row int main() { … |
 | For this assignment due **3/4/2013**, I have to write a program to read in and evaluate a post fixed expression. I also have to print out the expression read in followed by the results of the evaluated expression (while handling the add, subtract, and multiply operators) and handle multi digit …  |
| | I have an xml file that I have to read in, convert all the carriage returns to \x0D and line feeds to \0xA, then call it into a function as a string. So for example my XML file is: <TEST> this is a string </Test> I would want a string … |
 | We cannot use constructors if we want that whenever a pointer is declared, it should be NULL. Am I right Sir? if I declare student *head, *tail, where student is a class, can I make my pointers automatically make NULL using default constructor?  |
 | Hey I have an code in Qt that is an QPushButton is hidden at start of the cpp but later i want to get it appear when the file is open and an line is readed but the problem i get an segmentation fault. Can be because the setHidden(true) in … |
| | Ok so am writing a program that simulates a computer system.The cpu and memory will be forked making memory a child process and cpu athe parent and i will be using pipes to let them exchange informatino. I am really lost tough on what to do next, i have loaded … |
| | write a program which display a restaurant menu, then ask the user to select a choice from the menu. Using the switch statement select the user choice. printout the choice the user slected and the bill amount.Include in the bill a 16.5% tip and 8.25% sales tax. |
 | Hey everyone need help on a project im doing in c++, so far I have made a command interpreter, that breaks user input into array of Strings sepperated by spaces and have a run function. Now I am trying to do the list() and list(directory) but I'm not quite sure … |
| | **please help me with this code ASAP** Problem Statement: You have to write a Schedule Management Program for the counsellors. Here are some facts: Facts: There are 10 counsellors. You have to Manage only one week's schedule. There are 7 days in a working week ten working hours in a …  |
 | Hello, i just started to study c++ and i have a problem about 1 porgram in the homework ! it ask me to write a c++ program that first asks the user if he want to enter a number if yes he enters the number and then ask him again …  |
| | I am trying to figure out what it would take to create software like [MaxiVista](http://www.maxivista.com/) or [ScreenRecycler](http://screenrecycler.com/ScreenRecycler.html). I have good experience with Java and C++, but these two programs are just awesome and over my head. Basically, they take a window from one computer and transfer it to another. Does … |
 | I have been trying to call a C++ function in a DLL, from a C# WPF application I'm working on. I've done it before and it's worked but I can't remember how I did it and can't seem to find an example that works for me. I'm doing something wrong … |
| | Hi Everyone, I have been trying to teach myself how to code for more than a year now, having started with VBA and then switching to c++. Recently I have been forced to confront how horrific my coding practices are, and have been doing pennance by trying to modify 1500 …  |
| | Hello, I'm still learning C++, and I have a question that I'm not even sure how to search for it, so sorry if this is a repeat. The thing is that I'm trying to make, for a project a-for lack of a better word-memory manager. I want to have kind …  |
 | Generally people sit in front of computers for a long time which results in eye strain. We indeed forget to take a break. So here is a good freeware called FADETOP which reminds you to take a break after every 15 minutes. However you can change the default time. You …  |
| | Hi, I would like to know how I would modify the close (X) button in the GUI. For example, I would like to be able to have the user click on it and the program to bring up a message box from the MessageBox::Show() function that I type in. This … |
| | I am having trouble understanding the concept of virtual functionsin c++.i couldn't find any simple example code for me to understand.can anyone show a simple program using virtual functions and it's importance? Thanks |
 | I'm using the function GetBitmapBits. MSDN says of the function > The GetBitmapBits function copies the bitmap bits of a specified device-dependent bitmap into a buffer. What it does not say, is how the data is stored, and I need to know this if I'm to analyze each specific color. … |
| | i'm not sure which STL container to use, what i'm going to be using it for is adding elements at the end and removing elements from any point inside it, i've looked into the different containers but its all a bit confusing so some advice would be great. |
| | Hi I am trying to create a loop that increments a cars mileage while the fuel decreases by 1 gallon for every 24 miles. Instructions: To be able to work with the FuelGauge Object. It should decrease the FuelGauge object's current amount of fuel by 1 gallon for every 24 … |
| | I'm new to C++ and I'm having so much trouble with this problem. I honestly don't know what I'm doing wrong, I've tried everything but I still can't seem to make the program work. This is the problem: Write a program that reads in ten whole numbers and that outputsthe … |
 | hey guys !!! i have to sort the students according to their first and last names here is the code i have written so far ,, it inputs the first names and last names and then it stops working . please help me with this ,, thank u #include <iostream> …  |
| | `MSXML DLL : #import <msxml3.dll>` I am writing XML using MSXML DOM & expected to add multiple processing instruction. ex: <?xml version="1.0" encoding="ISO-8859-1"?> ------ first processing instruction. <?xml-stylesheet type="text/xsl" href="cdcatalog.xsl"?> ------ second processing instruction. <catalog> <cd> <title>Empire Burlesque</title> <artist>Bob Dylan</artist> <country>USA</country> <company>Columbia</company> <price>10.90</price> <year>1985</year> </cd> </catalog> I have write below … |
 | Hi Everyone, Very beginner with C++. Reading some books and trying to write some codes as much as I can. I'm trying to understand what voiding a function does. Now in the book and the searches I did says it doesn't return anything. But looking at the code below, doesn't … |
 | I'm not able to figure out how to **change** the **icon** of a **console application** in **Borland C++** (v5.02). Can you help me figure out? |
 | Write a program in C++ to accept two time given in hours and minutes using a function input ( ) , then pass these values to a function called addtime( ) to calculate the sum of two times ( using returning structure form function )  |
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