51,593 Topics
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| | I am trying to build a console project using Microsoft Visual C++ 2008 Express. I included a static third-party library (no source code available) by adding the name to the Additional Dependencies (in Project Properties\Linker\Input). Additionally, I added the path of the folder where the ThirdPartyLib.lib is to the Tools\ProjectsAndSolutions\Directories … |
| | Hi all just wanted to take a moment to introduce myself. I stumbled upon these forums while looking up more information on programming in C++. It looked very useful and it would be nice to have a forum I can ask questions on and post problems I"m having with coding. …  |
| | I am trying to write some simple programs related to network and I boost::asio as a tool to start with Below is one of the example from a blog(I alter it a little bit) [code] void OnConnect(const boost::system::error_code & ec) {} void asio_7b() { asio::io_service io_service; asio::ip::tcp::socket sock(std::ref(io_service) ); try … |
| | hello, I got the below exception while trying to update the datagridview after adding a record into microsoft access database: [COLOR="Red"]c# rows cannot be programmatically added to the datagridview's rows collection when control is data -bound[/COLOR] using below code: [CODE] private void btnAddOne_Click(object sender, EventArgs e) { string name = … |
| | Hey everyone out there please help me with this code [code] #include<iostream> #include<stdlib.h> #include<time.h> using namespace std; int main() { long n; cout<<"Enter no. of random numbers to be generated\n"; cin>>n; int arr1[n]; srand(time(NULL)); for(int i=0;i<n;i++) { arr1[i]=rand(); } int x=0; int pos=0; double k=time(NULL); for(int i=0;i<n-1;i++) { x=arr1[i]; for(int …  |
| | i need some help..for vc++ 6.0 like vb inputbox...is there any inputbox available for dialog or sdi based mfc application... in vc++ is there any page navigation is possible... like vb hide or invisible... |
| | am want to develop a file transfer program in vc++.. normal text file it is possible.. but is it can read for multimedia file.... like java here byte read is possible... |
| | Hii, I had an application which suffers from crazy scrollbars. When textboxes are loaded with some array elements their scrollbars scrolls towards to the bottom of the boxxes.So the multiline textboxes looks as if they are empty !!! However, when i open an empty project to see if this situation … |
| | I kind of lost here... I have the book but it does not show the loop... I want to use je 100 but this is not the same language Using the IAS computer instruction set to write a program for the following C(I)=A(I) + B(I) for I = 1,2,... 100 … |
| | I'm a little lost with C++ so I could really use your help with this one! I googled it but nothing does what I want to do! So here is my problem... Let's say I have a file like this: A 10 20 30 40 B 25 13 100 99 … |
| | every time i run the program it prints out 0. I think something is wrong with my display function but i cant see the problem. [CODE]#include <iostream> using namespace std; #define STACKSIZE 10 class stack { private: int arr[STACKSIZE+1]; int tos; public: stack(); void push(int x); int pop(); bool is_empty(); …  |
| | Hello all. I am trying to figure our how to add a pin and unpin button on one of my ms visual forms. An example of this is the pin that in used on the top right of the solution explorer in ms visual. I know that in the basic … |
| | We have been assigned to make a program for a bank using data file handling, as our project. I am having some trouble at this point... the last object written in the file is printed twice and I've no clue as to why. Case for display: [CODE]file.open("Records.dat", ios::in | ios::binary); …  |
| | Sorry for using Inception in the title but it's the only way I think I can describe it.. Take this for example: Definition.H [CODE] struct XY { string info; string name; string tag; string attrib; }; //is it better to create an object here inorder to make the array? struct … |
| | hello everyone! i'd like to know if theres a way to run my program until the user presses Esc button. i use linux environment and my main function runs fork().i want the program to stop the fork() when the user presses escape. thank you! |
| | The result of this code is 65535 But I believe that for && both sides must hold true (rather one side being true is enough for ||) so how come the result is 65535 ????? when after 5++ the first condition becomes false ????? Thanks in advance [CODE=c]#include<stdio.h> #include<conio.h> void … |
| | I am trying to make a circular linked list and I think I am not linking it properly in the middle area because I can print the last and first node, but not the rest... [CODE]#include <iostream> #include <new> using namespace std; struct node { int Item; node* Next; }; … |
| | Please help me run this program, i forgot the output of this.. [CODE] #include<iostream> #include<cmath> using namespace std; class SumTwoNumbers { int nx,ny,sum,suma,sumtn; public: int GetFirstNumber(); int GetSecondNumber(); int GetSum(int,int); void Display(int,int); }stn; int SumTwoNumbers::GetFirstNumber() sum=nx+ny; //here is where the errors i wrote below points! i dont know why return(sum); …  |
| | I'm trying to implement priority queue using a singly linked list, but the program is not running in the best way, n the display function is showing just first n last node's data , y??? [CODE]#include<iostream.h> #include<conio.h> struct node { int n,p,b; // Data members for getting Task no. ,Priority … |
| | Hi, I got this error while trying to access the method that I've posted here. Main program: cin>>sname; string x; Sports x = Sports.getName();//error:a nonstatic member reference must be relative to a specific object. loc=x.find(sname); In Sports.cpp: string Sports::getName() {return name;} I've declared getName() function as public.Still I'm getting this …  |
 | Hey everyone, I've made a game with SDL and I'm now trying to distribute it. I've included all of the required .DLLs and such but now I get this error whenever I try to run the .exe: The application or DLL E:\GAME\DEBUG\MSVCR100.dll is not a valid Windows image. please check …  |
| | I'm writing a dayType class program and I'm having trouble with comparing two different days to each other. Here is what I have for them: bool dayType::equalDay(const dayType& otherday) const { } and here is main: if (day.equalDay(newday)) cout << " equal days" << endl; else cout << "not equal … |
| | Hey guys, I'm fairly new to C++ and I was wondering if I could get a hand with something. I'm trying to write a program that will create something called an anti-saccade task, in which the subject of the experiment would have to look away from the stimulus, for my …  |
| | Hi there, I am new to C++, and was wondering if someone could write an example program for me to work with. What I would like to do is take input from stdin and then display the translate output to stdout. Example: Input: [code] (color 0 0 0.1) // These …  |
| | [code] struct String { String() { std::cout<<"String::String(), this="<<this<<std::endl; } ~String() { std::cout<<"String::~String(), this="<<this<<std::endl; } String(String const &other) { std::cout<<"String::String(String const &other), this="<<this; std::cout<<", other="<<&other<<std::endl; } String& operator=(String const &other) { std::cout<<"String::operator=(String const &other), this="<<this; std::cout<<", other="<<&other<<std::endl; return *this; } }; String const operator*(String const &lhs, String const &rhs) { String … |
| | Hye.. Any know to create calculator program for formula V=IR In c++..?? Please help me.. ASAP |
| | Code works, however i'm having problems with reverse string- i cant figure out how to index the elements. for cycle returns errors, what else could i use? The end goal would be to compare string line with string reverse. If adequate elements match its a palindrome. [code=c++] #include <iostream> #include … |
| | I have a palindrome set up in the system, and running fine. However, when I type "never odd or even" or "A Man, A Plan, A Canal, Panama", it didn't run properly as if these words in quotation marks are considered palindromes. Where is the loophole on my code re: … |
| | I have a problem to test endiness of c++ code . It contain around 170 files. How to check that whole code is bi-endian ? |
| | I saw this example while i am searching about vectors.. [CODE] vector<double> student_marks; // no size specified: vector contains // no elements int num_students; cout << "Number of students: " << flush; cin >> num_students; student_marks.resize (num_students); for (vector<double>::size_type i = 0; i < num_students; i++) { cout << "Enter … |
| | Hello all. I have a question with no code because i'm a beginner at mfc and find it very confusing. I can see that there is a message loop in mfc. From what i understand it is like an event in windows form applications. In my mfc application i want … |
| | The below code is what I have.. It's a custom type I made called Points that stores co-ordinates on the screen.. The problem is in the PointsArray Struct. When I declare one like so: [CODE] PointArray P; Point A(10, 5); for (int I = 0; I < 5; I++) { … |
| | Please help me its urgent... I have a MSDN Queue class, I need your suggestion can I make a message class and enqueue its objects as an element. [CODE]// new.cpp : main project file. #include "stdafx.h" #include "message.h" using namespace System; using namespace System::Collections; void PrintValues( IEnumerable^ myCollection ); void … |
| | I'm an absolute c++ beginner so please be patient. [CODE]#include <iostream> using namespace std; double array_of_5[5] = {1,2,3,4,5}; double sum(double a , double b ); double a= array_of_5[2]; double b= array_of_5[2]; int main () { cout<<"The sum of two members of the array is: " <<sum<< endl; return 0; } … |
| | Hi every one this is vivek.I want a projent in oops which should be different it should be totally object oriented and i am getting confused what to do for my project.Please its urgent.Please give me some idea note:- only c++ should be used for coding  |
| | Read 10 numbers in an array. Each number must be between 10 and 100. As each number is read, print it only if it is not a duplicate of a number already entered.  |
| | i saw that we should not use the combination of new operator and free for allocating and deallocating memory in c++.. Is this right? is there any reason other than saying that the combination is calloc/free and new/delete? please help me.. thanks in advance |
| | Hiya: I have tried to reproduce this equation to simple reflect a ball after colliding with a paddle (or screen bounds) R = V – (2 * V[dot]N) N I don't want to take the easy rout of just negating the velocity but is my first time trying to implement … |
| | Hi, I'm having a problem with taking the user input from a richtextbox in Unicode and writing it to a Unicode text file. I'm able to read a different Unicode file and write it to the new file, but when it comes to writing the contents of the richtextbox to … |
| | Hello I'm new here and I've been up two night's trying to figure out how to write a program that will convert numbers to word. If anyone can help please respond to the post. here is what I sort of figured out so far. As you can tell I'm still … |
| | Alright. I am (attempting) to use this [URL="http://sites.google.com/site/rcorcs/download/systemsoftware"]http://sites.google.com/site/rcorcs/download/systemsoftware[/URL] simple database library in VC++ 2008 Express. I admit that I am a newbie to C++, since Ive used only "light" programming languages like python, php, java. To use it I have the header files, and as "lib" folder I have a …  |
| | How can I forward declare a struct/custom type in my include? I'm trying to write an include but it keeps telling me incomplete type or type not declared.. I do not have a .CPP to go with it.. I wrote everything in here as I have never written an include … |
| | so i have a char array that can hold up to 1000 items.. but it might not be filled up completely. How can i prevent the program from printing garbage on the screen after printing the real values from the array. btw i am reading from a file, sorting by … |
| | the program wont compile because it found and error with ReadFromFile class method in the main.cpp file. Any help would be appreciated. class inventory deceleration in "Inventory.h" file [CODE]#ifndef INVENTORYDEF #define INVENTORYDEF #include <iostream> #include <fstream> int const MAXNAME=30; int const SIZE=2; class Inventory { private: int quantity[SIZE]; float unitcost[SIZE]; … |
| | I'm writing a program to convert Decimal numbers to binary, hexadecimal, and BCD as a refresher before i start getting code assignments in school. I'm almost done, but i have a seg_fault (compiler says decToHex function) in 1 function and i am hoping for some feedback on the others. I'll … |
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| | Hi, I'm new here so I'm not sure if this is the right place to ask for homework help. Sorry if it's not proper :) This is from my Data Structures class. I'm just about done with the assignment but it's giving me memory leaks and I'm not sure what's …  |
| | I have the following input and my program is not running: 1 3 2 1 3 7 8 [CODE] #include<iostream> #include <cstdlib> using namespace std; int main() { int arr[7], min, i=0, j=0; for(int i=0; i<7; i++) { cout<<"Enter value at arr["<<i<<"]: "; cin>>arr[i]; } min = arr[j]; for(; i<7; … |
| | I got a problem regarding searching for a string in a file.txt. Program takes input from user and searches for the string and outputs the first string that finds. Ex: user enters NIW and program should output the string DANIWEB(DA'NIW'EB) I can get the input from user and I dont … |
 | [CODE]#include<conio.h> #include<iostream.h> void main() { clrscr(); long input,negaAr[10],posiAr[10]; for (int x=0;x<10;x++) { cout<<"enter:"; cin>>input; if (input<-1) negaAr[x]; else if(input>=0) posiAr[x]; } cout<<"positive:"<<posiAr[x]; cout<<"negative:"<<negaAr[x]; getch(); }[/CODE] i dont whats thee problem of this, ihave to input 10 integers and display the number of positive and negative. |
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