49,757 Topics
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| | So what would be the size of this array in bytes if on a 32 bit machine: double *arr[4] ;  |
 | can anyone please explain me in brief that how exactly this container work ? or can u giveme some link of this. i have tried to look on some links by google, but i am not much clear about my doubt. please help me if u can. thanks.  |
| | If I have two objects (Intern and Manager) derived from an Employee class, could I create a function that would return a pointer to a new instance of one of the two derived objects by passing the type to the function. So, could I do something like this (I know … |
 | Are there any limits to how many bitmap resources you can have embedded in your executable? If it matters, using visual studio 2010, windows platform. |
 | int x; cin >> x; //If user writes 05 in x. Then I want that 05 should be printed when we cout << x; //If user writes 005 when prompted for x then printing x should print 005, because 005 may be a telephone extension. Is there any way?  |
 | I'm building pdf software with multiple dependencies (podofo) and when compiling I'm getting the errors. error: conflicting declaration 'typdef short int unit 8' error: conflicting declaration 'typdef short int unit 16' Would anyone know if there a CXX Define command I can use to bypass these errors? My CXX flags … |
 | Hi all, I have this if condition which never seems to be true, but should be! It's the part in the code where I pull the String^ from textboxes (the regUsername textbox) and compare the inputted username with the first word from every text file line. So every text file …  |
 | Hi, I'm trying to output a list of dvd titles along with some of their details. The problem is that it seems I can't get them aligned all pretty well. So I upload the screen shot as well as the code generating it. Please help me out here. This is …  |
 | can someone help me ? i have problem to make airplane seating program.. what it need is i ust put the details of the booker in the seat.. for example , when we want to check who already booked this seat,we click that seat and it will appear name and …  |
| | I am in a fundamentals class for C++ and having a bit of an issue. I know the problem is not fully understanding. I am not looking for the answer but to get direction to better understand what I am doing wrong and how to fix it. The Problem: Write …  |
| | `Inline Code Example Here`I am using a pair of pthreads that call a pair of functions for ping-pong dma data transfer that are used in a loop for data transfer from an acquisition board. For a large # of waveforms, I ultimately run out of PC memory and the program … |
 | Hi everyone, Heres my problem: I've installed Qt 4, and there is **no** qmysql.dll/.a in C:\Qt\4.8.4\plugins\sqldrivers\. I am running a MySQL database program and I get Database error: Driver not loaded. Theres not really a lot of help anywhere on google so hopefully DaniWeb will yet again prove itself as … |
| | New to c++. I'm trying to figure out how to use strcmp with array's . I need to see if a array holds the word "hello". I can't get my code to work quite right. What is it missing? #include<iostream> #include<cctype> #include<cstring> using namespace std; int main() { char a[30]; … |
 | Tryying to coun the numeber of comparicion but dont know how to count them include <iostream> #include <time.h> #include <stdio.h> #include <conio.h> using namespace std; //funcion para dividir el array y hacer los intercambios int dividir (int *array, int inicio, int fin){ int comp=0; int izq; int der; int pibote; … |
| | My Thinking: struct student { int *subjects_number = new int [NoOfSubjects]; } main() { int NoOfSubjects; cin >> NoOfSubjects; } Objective: students could have taken different number of subjects. Now modify the structure such that its variable subjects_numbers has type pointer to int so that we can store scores for … |
 | Segmentation fault (core dumped) Can someone please explain what that error message means? I'M tryin to use `strcat()` to add "0" to the left end of char `*argv[1]` I want it to do this only when the lenth of `argv[1]` can not evenly be divided by 3. So if I … |
 | I can see methods in stdio.h, iostream, etc in Turbo C++. But I confuse now because now I try to use code::blocks. Thank you if you solve my problem |
| | Why the condition if ((a[0] == 'y') | (a[0] = 'Y')) is ALWAYS TRUE in the following code? #include <iostream> using namespace std; int main() { cout << "Enter 10 integers seperated by spaces: "; int array[10]; for (int i = 0; i<1; i++) cin>>array[i]; cin.ignore(); cout << "Do you … |
| | I am compiling some source that is linked to two packages. One is OpenCV and the other is a driver library for an infrared camera. The company only provides a 32-bit version of the library via an rpm package. I compiled OpenCV from source and it's libraries are installed in … |
| | Guys Plz help me out of this.... i have to take common values from three arrays and if there is repetition of values code should display value only 1 time... plz help? here is my code` #include<iostream> using namespace std; int main() { int count=0; const int size=5; int arr1[size]; …  |
| | Hi guys What's the default pointer value in c++? Can I count on the compiler to set an uninitialized pointer to NULL? Is it compiler dependant? What's the "consensus"? Thanks! -FH |
| | The annoying use case is this: for (vector<int>::size_type i = 0; i < v.size(); i++) { cout << v[i] << ' '; if (i == v.size() - 1) { cout << endl; } } C++11 offers the `auto` keyword for initializer type deduction so that we can avoid verbose and … |
| | I am new to this forum so please excuse any errors i make! I have recently started programming in c++ and one of my first projects is making a console trainer for AssaultCube (FPS Game). I have some errors and have not been able to fix them. Here is the … |
| | I successfully created a C++ window but got an error message when I tried to add menus. I will surely appreciate any help to fix the issue. As follows is the code: #include <windows.h> /* Declare Windows procedure */ LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM); /* Make the class … |
| | I've been reading quite a few threads about creating new files if one doesn't exist...but I need it specifically for windows, in the current directory we are in. I've seen ` ifstream file; file.open("TehLeetFile"); if(!file.is_open()) cout<<"Tehleetness is busted!"; else cout<<"it work!!!!11!!!11!one!"; ` That's just checking to see if the file … |
| | Hello, I have a school assignment that i really need help with. I am supposed to create an X shape with asterisks using for loops. I am terrible at for loops so i was wondering if you guys could help me out a little in figuring out the best solutions. … |
| | I have been told that in C++ the concept of a string does not exist. A string is just an array of type char. So in the following code, is message an array because it doesn't really look like one? char *message = "I am having trouble understanding pointers"; std::cout … |
| | Suppose I have a code: Class A have items which is pushed into a vector...I want to access Class A element from class B through A's vector.. class A { friend class B; vector<A> data; //store info in vector }; Class B { void showDataInClassA(); A a; } void B::showDataInClassA() … |
| | I am creating a project in turbo c++ and it is based on kids and i want to implement the speech like it will speak(a for apple).so is it possible to do this?and if possible then please help me out. |
 | I am trying to write a program that creates a new file every time I use the application. Right now, this is what I am doing: outfile.open("Application.txt"); outfile<<"First Name: "<< firstName <<" "<<"Last Name: "<< lastName<<" "<<"Student Number: "<< studentNumber << endl; outfile<<"Email Address: " << emailAddress <<" "<< "Major: …  |
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