51,593 Topics
 | |
| | Does anyone know of an easy way to get the computer to do separate tasks for each core? Assuming each task has no memory collisions etc. how can I get each core to work on it's own separate block of code?  |
| | I am having a dialog box opens that lets you select a picture and then copy that picture to another folder but the problem is that i am having an error that says that i can't convert a System::String to a LPCTSTR. I searched this subject on google but i …  |
| | hye guyz, Can any one tell me that what the data structure is used behind FACEBOOK ??? I have googled but not found any useful answer... plzz tell me quickly..  |
| | I'm just curious if anyone knows if there is a ready made function in C++ to sort (numerically or alphabetically) multiple arrays based on a particular array? i.e. Imagine you have multiple arrays or a multi-dimentional array containing data about users (name, age, etc.) Is there a function that for …  |
| | ##TASK Step One The DNA molecule is a double-helix. You can think of this double helix as two parallel sequences of DNA with nucleotides or bases (A,C,G,Ts) on one strand matched with their associated nucleotide on the other strand according to the following rules: A matched with T C matched … |
 | I'm working on an assignment in which we aren't allowed to use arrays or functions. So i need to use loops to split words from a text file. I got most of the code working but i get an error at this part where the loop doesn't exit when i … |
| | So the "substr" command is used for extracting certain characters, i have a problem in which if the character is a space, the previous value is used for filling the variable The code: #include "stdafx.h" #include<cmath> #include<string> #include<iostream> #include<sstream> using namespace std; int _tmain(int argc, _TCHAR* argv[]) { string line="Introductory … |
| | i'm writing a cashier like program and i need help with the setfill code. i wrote "cout << "Item Cost: " << setw(8) << cost << setw(10) << setfill('=') << endl;" and the result is "Change Due: ======5" I want the equal sign to be on the next line all … |
| | Hey guys, I am having a problem where i want to print a image and a simple string. i would want that when i print i get this on paper : [Click Here For Image](http://img339.imageshack.us/img339/9308/wiw.png) I looked up printDocument, printDialog and printPreviewControl from MSDN and got a few examples but …  |
 | Hello, I have been learning how to use the MS WinAPI, but their documentations is extremely vague in a lot of places, without information on the proper use of functions (PHP.NET manages this just fine!). But anyhoo. When I handle the WM_DRAWITEM message, it SHOULD display an image on the … |
| | Define an integer vector and get several input from keyboard, then display the numbers in the vector. The while loop is required to write the display loop. I am having trouble turning my program into a while loop and getting mistakes. Please help. #include <iostream> #include <vector> using namespace std; …  |
| | Hi guys, I am bit puzzled with a requirement on my program: Say I have a class A with some private variables class A { private: string variabe; }; Then I have class b with some other private variables class B { string varialb1; }; Now I have a class … |
 | I have some problems in my program. I have to read info from input files and display a message. This is what I have: #include <iostream> #include <fstream> #include <iomanip> using namespace std; void Printing(ofstream& outFile, int& percentFat); void Percent(float& fatGrams, float& cal, float& fatCal, int& percentFat); int main() { …  |
 | #include <string> #include <iostream> #include <algorithm> int main() { using std::string; using std::cout; using std::endl; using std::replace; string s("name"); replace(s.begin(), s.end(), 'n', 'x'); replace(s.begin(), s.end(), 'a','x'); cout << s << endl; system("pause"); return 0; } Here is my code. this code output= xxame. my desired output is that their is …  |
| | Hello! I'm writing some mathematical iterators over some big classes that I don't want to store in memory at all, but I still want to be able to iterate through them. As an example (but I have a few of these), think of a class `Combinations({0,1,2...7}, 3)`, which means I … |
 | Hello all. I'm writing a program that converts from any cominbation of base 2, 8, 10, and 16. So far I have this code and I want to convert from hexadecimal to octal but it doesn't work. I would appreciate any help. Thank you! Here is the code: #include "stdafx.h" …  |
 | void runGame(){ readimagefile("PIX\\Landscape.jpg", 0, 0, 800, 800); while(1 == 1){ moveCharacter(); //moveMonster(); } } void moveCharacter(){ int move = 0; int size = imagesize(0, 0, 800, 800); void *background = malloc(size); getimage(0, 0, 800, 800, background); readimagefile("PIX\\Character\\down_still.gif",x9,y9,x9+50,y9+50); thunderClaw(); //specialAttack(); //thunderball(); if(kbhit()){ if(getch()== 'd'){ move = 1; } if(getch()== 'a'){ move … |
| | The number D computed by the following polynomial formula D=(pow(i,5.)/120)-(pow(i,4.)/12)+(23*pow(i,3.)/24)-(83*i*i/12)+(571*i/30) should always be an integer, when i=1,2,3,4,5,.... However, for some i values, each separate term may not be an integer, but when putting together (with additions and subtractions) in the above formula, any non-integer parts would be "cancelled out", and … |
| | impliment the selection sort algorithm to sort the elements in a two dimentional array of order 3*4 in descending order. the program should prompt the user to input 12 element, sort and display the elements in the matrix format. |
| | Hello, I have a course that is Operational Systems.. My lecturer doesnt explain so much and after He say, You must solve this problem, because u r a programmer.. I have such a problem with linux programming. I put my code here, He wants, I must allow multi-client to server. … |
 | guys, how to make a simple program that can combine basic C++,array,function and pointer altogether.can anyone help me please? thank you! :) |
| | I wrote a large project dealing with images, files, and WINAPI functions. I decided to add RichTextEdit to it and used the msfedit.dll.. Turns out that it only supports UNICODE style strings and chars and my entire project is std::strings and LPCSTR's, etc.. None of the WINAPI functions are unicode …  |
| | I was going to post this in a thread, but it turned into something a bit more serious and may be useful as a code snippet. The code shows three files: * menu.h: The header file for the menu library. * menu.c: Implementation of the menu library functions. * main.c: … |
| | Hello everyone, im new here and dont know yet most of the policies.. but i have been reading lots of your C++ codes, mostly, codes made by Narue.... i wonder if you someone could help me make a code for pascal's triangle wherein the ouput would look like a triangle … |
| | I am writing a program for class but stuck. I need my program to pick adult, child, student or senior, if I enter any of them. #include<iostream> #include<iomanip> #include<string.h> #include<fstream> using namespace std; int main() { int choice; int months; int Adult, Child, Student, Senior; cout<<"Enter the number of months … |
 | Hi, Can anyone tell me how to create a class in C++ such that, the instance of that class cannot be created on stack? Am not able to figure out how to do it. Thank-you in advance, Sri |
| | I have to update a road tunnel lighting program I wrote for a company. They now want a new standard to be applied, but with the option of switching between standards real time. And there will be other standards in the future. Currently the single object which calculates the lighting … |
| | Greetings While reading I encountered a statement I did not understand what does it mean "Cout is a predefiend object in C++ **to correspond to the *standard output stream*** 1- What is that exactly mean? 2- what is the *standard output stream* & *standard input stream*? |
 | The function called skipped over when i run the program. What's the problem? #include <iostream> using namespace std; void searchId(int id[], int& idNum); int main() { int idNum; int count; int *id; int Numid; cout << "Please input the number of id numbers to be read "<<endl; // cin >> …  |
 | Hi, I'm developing an application which needs to check user-inputted credentials against a Mysql database running on a web server. Does anybody know how I could communicate between c++ and a PHP or Ruby on Rails page and then parse the results back to the client? Many Thanks |
 | I can't detect the problem to this program that i've made. there's a problem for sum and average. #include <iostream> using namespace std; float sum(float[], int); // Declaration of function float average(int, float);// Declaration of function int main() { int numMonth; int count; float *sales; float userInfo; cout << "Please … |
| | Hey guys i'm having a lil trouble with object serialization. student * s = new student("Mike",200014); ofstream ofs("student.dat",ios_base::out | ios_base::binary); ofs.write((char*)&s,sizeof(s)); ofs.close(); If student was a class with attributes `studentName:string` and `studentNumber:int` would the above code write the object pointed by s to the file `student.dat` ?  |
| | menu driven program to perform the following stack operations using a linked list: push pop and display elements. #include<iostream.h>//header file i/o stream flow #include<conio.h> class Stack { int A[10]; int top; public: Stack() { top=-1; } void push(); void pop(); void show(); }; void Stack::push() { int x; cout<<"Enter the …  |
| | write a menu driven program to create a linked list, insert an item, delete an item, and display the list of items. the program should contain a class with the required data and functions. #include <conio.h> #include <stdio.h> #include <stdlib.h> //Structure containing a Data part & a //Link part to … |
| | why this [code](http://ideone.com/hfYD8V) is giving me runtime error? |
| | declare two dynamic arrays of integers, input **size** needed for the arras, allocate **size** integers, initialize all elements to 0, prompt the user to input **size** elements in the first array, diplay the elements, copy the elements to the second array after deleting duplicate elements, and display the elements from … |
| | write a binary search algorithm to look for the presence of a search key in a single dimensional array of 10 elements. prompt the user to input 10 elements and the search key. display meaningful messages after the search operation. #include<iostream.h> #include<conio.h> void main() { int p[10]; int search_key; cout<<"\n … |
| | Following a tutorial, I built a small sample program that uses winsock. It compiles, but there are a few different places I'm not sure what's happening with the pointers. Full source is available [here](http://pastebin.com/NTdCWhWr) Line 25: `struct hostent *host;` As near as I can tell, this creates a pointer to …  |
| | alright guys so am havign trouble finding a way to search for seats that are toghether, my pgram consists of a theater with 20 x 10 seats, i have created a seatSelection class and the theater file which has the main. Ok so heres a sample output of how it … |
| | #include <iostream> using namespace std; void get_temps(int choice) { if(choice == 1) { double temps[12]; for(int i = 0; i < 12; i++) { int month_num= i+1; cout << &"Please enter the average temperature for month " [month_num]; cin >> temps[i]; } } if(choice == 2) { double temps[10]; for(int … |
 | Program to Find the words starting with a or A from the source code itself and then modify it by removing the words from the source code and put it in another file. The following code doesn't work. Pls Help!!! #include<iostream.h> #include<conio.h> #include<fstream.h> #include<string.h> void Write(fstream &a, char b[]) { … |
| | Assuming a simple class like below and the main like below, will the class variable be stack/heap allocated depending on how the class is instantiated? OR will the class variable be allocated depending on how it is implemented? class Foo { private: std::string Bar; public: Foo() : Bar(std::string()) {} }; … |
| | Hey guys i have an advanced programming project , which is to run on both linux and windows operating systems. And i wanted to know if there is an IDE with drag and drop features which i can use to code the graphical user interface |
 | Write a program that does the following in C++ Need help •The program should keep an array of 12 structures. Each element is for a different cyclist. •Functions to accomplish the following: ◦When the program runs it should ask the user to enter the data for each cyclist. ◦It should … |
| | I am getting wrong output. My Code is following, in which I have to use function unsigned long powerof2(int n); #include <stdio.h> #include <stdlib.h> #include <math.h> //int powerof2(int n); unsigned long powerof2(int n); int main(void) { printf(" n 2^n\n"); printf("-- ---\n"); for (int n=0; n<65 ;n++) { //printf(" n 2^n\n"); … |
| | I am trying to print: 0 1 1 2 2 4 3 8 4 16 5 32 6 64 7 128 8 256 9 512 10 1024 11 2048 12 4096 13 8192 14 16384 15 32768 16 65536 17 131072 18 262144 19 524288 20 1048576 21 2097152 22 … |
 | I'm asked to Write a program to create a calendar and I have a problem with defining the first day in every month whether it's satureday or sunday, etc can anyone give me a hint to fix this BTW, I'm not allowed to use functions :/ I'm disappointed about my …  |
 | Thanks in advance for anyone who can a)understand this, and b) give any help in my struggles. We are coding in C++, have half a circle, starting a a certain point (e.g. (0,-310)) and finishing at a certain point (0,310). We have the radius, and we have the equation X^2 … |
| | This is homework. I have been tasked with creating a new dialog in WinMerge that provides line stats for every open file. It should show total lines, lines modified and lines deleted. I am working on implementing the total lines part. I have already created the dialog, a class for … |
 | Hi there. I am trying to create C++ code that allows User Input in selecting a variety of fields, then it will calculate many different angles and show the users the results, as well as a graph. However, it has been suggested to us by our lecturer that it may … |
The End.