49,757 Topics
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 | My assignment this week deals with using a struct. I think I can do that part. What I'm having trouble with is reading the file into each variable. The first item in the file is text with spaces. The next items are numeric and need to go into other variables, … |
 | hello everyone I am teaching myself c++ and I was wondering if anyone could give me a site that has some c++ exercises particularly on 2d arrays and string manipulation. thank you. |
| | Hi All, I have a C++ DLL, which has a function called INPUT and it is defined as follows in DLL: [code] extern "C" __declspec(dllexport) char* _cdecl INPUT(int a,int b,double D[2],double Z[2],double e,double f); __declspec(dllexport) char* _cdecl input_balr2(int a,int b, double *D,double *Z,double e,double f) { //Do Something } [/code] … |
| | Hi, I'm writing a "Date" class and it's fully functioning, including the output manipulators, but the issue I have is when creating a class the has a "Date" instance in it. It, then, doesn't compile because it says there are multiple definitions of the manipulator functions. I'll lay out, below, … |
| | i'm having a problem in executing a batch file from my c++ code i've included all the necesary headers like dos.h,process.h,stdlib.h code: system(c:\new\ram.bat); there is no error in the program but the batch file does not get executed..... please help ................ |
| | can we declare a array as, int arre[x]; and assign the value of x as,x=5; but error is coming "constant expression required." Any help? i wanted to input series of marks,first you should enter how many subjects(if 5 subs,x=5) then you can enter 5 marks. |
| | hi every one I really need help with this and how to do it =The motel has 12 rooms numbered 1 to 12, and each handles a maximum of 4 guests. Assume all rooms begin empty. Provide a user-friendly interactive menu that allows the following transactions: B – Book room(s) … |
| | Our homework is to compare N circles with each other if they are intersecting or containing.My C file for that is : [CODE]int N=0 , i=0, j, a=0, max=0; float circle[MAX] [3] ; float durum1, durum2, durum3; float intersection[MAX], containment[MAX]; printf("Please enter the number of circles you want to compare … |
| | Hi, I've got a modeless dialog. When user click the X button at top right hand corner, I want to catch the event and do some processing. What event do I use for that..? I cannot find OnClose event in the event handlers box. Btw, I'm using VC++ 6 (MFC). … |
| | #include <iostream> #include <ctime> #include <cstdlib> using namespace std; i am having trouble putting functions in int main(). can someone show me how??? i want to put these function def. in int main() [CODE]int score_num(int& ns1,int& ns2,int& ns3, int& ns4, int& ns5, int& n6, char& gam_answ); int roll_hold(int roll, int … |
| | firstly here is the code i'm working on in visual studio [CODE]#include "stdafx.h" #include <iostream> #include <string> using namespace std; struct Car { string r_number,make_of_car,model_of_car; int mileage; int age_of_car; }; void main () { int i,num; Car *car1; cout << "Please enter the number of cars: "; cin >> num; … |
| | Hey all I'm new C++ and am having a little trouble with a simple program. The program calculates the square root of a number the user inputs. When I input -1 or any negative it comes up as 1.#ind. Ideally when the user types -1 i want -1 to come …  |
| | So I have been asked to write a template class for a binary tree (easy) the hard part is that the nodes have to be written into a file and read in the same exact positions they were in when they were stored. I looked at the array solution with … |
| | Hello everyone, Currently, I am trying to make a smaller version of the famous Eliza bot. I have written a program that can understand and put out replies, but if I want to make it bigger then the code will be thousands and thousands of lines long. And all on … |
| | [CODE] #include <cstdlib> #include <iostream> #include <iomanip> #include <stdlib.h> #include <conio.h> #include <stdio.h> using namespace std; void printintromessage (); void getUserInput (char& Y); void calculations (const int& numofgamesinseries, const int& numofplayersonteam, int& i, int& j, int& k, int& l, char& Y); void PrintMax (const int& numofgamesinseries, const int& numofplayersonteam, int& … |
| | Hi everyone. Im new in C++, actually im doing my first project, and i have a few questions, if you guys could help me it would be awesome. :) In a method i have to create a .txt file, It have a parameter indicating the number of the file. But … |
| | Hi guys.. In my dialog, under void Class::DoDataExchange(CDataExchange* pDX), whenever i call DDX_Control(pDX, IDC_SOMETHING, m_VAR);, I got problem. After some digging, the problem is the function below. [CODE]HWND CDataExchange::PrepareCtrl(int nIDC) { ASSERT(nIDC != 0); ASSERT(nIDC != -1); // not allowed HWND hWndCtrl; m_pDlgWnd->GetDlgItem(nIDC, &hWndCtrl); //<---- hWndCtrl = 0 if (hWndCtrl … |
| | i want to make a key from keyboard toggle (on and off key ) that's for a polygon in openGl by using c++ this polygon appear when we press this key as solid and when we press this key again it appears wired can you help me thaxxxxx osha |
| | can someone show me an example of how you would initiate a variable and how you would fix a undeclaired identifiers. i am a visual learner so thats why i ask for an example. |
| | I have a bunch of code that looks like: [CODE] // Local block scope { ostringstream ostr; ostr.fixed; ostr.precision(2); ostr.width(20); ostr << foo->bar[trno]; SafeArrayPut2D( retArray, 3, i, (void *) ostr.str().c_str() ); } { ostringstream ostr; ostr.fixed; ostr.precision(4); ostr.width(22); ostr << foo->foobar[trno]; SafeArrayPut2D( retArray, 4, i, (void *) ostr.str().c_str() ); } …  |
| | How can I access (get) the individual pixels of the data in an LPDIRECT3DTEXTURE9? Thanks. |
| | This program is to accept input from a user to select there own username and then a password which will be compared to the password KazzyB, and give an output saying Welcome, The only problem in it is a single error KB.cpp(18) : error C2447: missing function header (old-style formal … |
| | I don't know where to begin: Lab 5 Write a program that will first fill two out of three parallel arrays (local to the main function) with user-supplied data and then give users the choice to query the parallel arrays. The first array is as follow: char title[SIZE_ROW][SIZE_COL]={"Intro to Calculus", …  |
| | hello, i'm trying to install opencv 2.0 and use it in vs 2005, but i'm having some trouble compiling any piece of code that uses opencv including the examples installed with it. I searched all around and all i could find is instruction for installing previous opencv versions but not … |
| | Hey, I've been going through some directx tutorials, but for some reason I can't get my program to work with .fx files. It complains that the file cannot be found, even that it's in the same directory and I'm sure that I'm using it correctly. |
| | hello can any one help me out dt how top create a symbol library using openGL? ...how to fetch dis symbol and display on screen ??... |
| | I'm making a red black tree (RedBlack class) whose nodes will contain customers (customer class) rather than the generic int data. Unfortunately, I can't seem to get VS 2008 Express recognize that data is of type customer. I get all sorts of redefinition errors, and I've tried pragma once and … |
| | Ok i im writing code that uses three funcrions and they are int getNumAccidents(); void findLowest(); void findHighest(): This proram function is this determines which of 5 geographic regions within a major city (north, south, east, west, and central) had the fewest and highest reported accidents last year. Could some …  |
 | My assignment is to develop a C++ program to count the number of capital letters in a given string. String will be entered by user. The idea is to build my knowledge of loops and loop terminations. I've got the basics down (I think) but I just don't get what … |
| | this is my while code and i use DEV-c++ compiler and i want to make it as a function and i dont know how ??? and realy want it as soon as possiple because the dead line is tomorrow ------------------------------------------------------------------------------ [CODE]#include <iostream> #include <math.h> using namespace std; int binTodec (int … |
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