49,757 Topics
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| | The Program has been started but I am having issues finishing the public class in the header and finishing the functions inside the main file. [B]Header File:[/B] [CODE]#ifndef POLYNOMIAL_H #define POLYNOMIAL_H #include <iostream> /** This class implements a polynomial of the form c0 + c1 x + c2 x^2 + … |
| | I'm rather confused on when i would use and what the following libraries( of frameworks[not sure what they are] ) would be used by a programmer. If anyone could please give a simple understandable definition i would greatly be appreciated. ATL MFC COM pretty much when would the following be …  |
| | hi does any one know libraries for wireless programing? |
| | Time to time I see some common mistakes or even make some my self. I figure I would post some of these, with hopes that people will learn from my and others mistakes. [B]1) Why you no work?[/B] [code] int sum = 0; for(int i = 1; i < MAX; …  |
| | Hi, I wanna ask you if there is SIMPLE way to check if file called XXX is in path YYY? I have this Code: [CODE]int GetLocation() { GetName(); string location; location += "C:\\Users\\" + name + "\\Documents\\test.txt"; if(location) return 1; else return 0; } int main() { if(GetLocation() == 1) … |
 | [CODE]#include<iostream.h> #include<conio.h> class student{ //student class // student class attributes // Access specifier is by default private int ID; char * name; public:// public acccess specifier // student class functions/ operations void login(); bool Select(); void read(); }; // end of student class // ******************************************************************** // ******************************************************************** // ******************************************************************** class … |
| | Hi everyone, I have a directory that have 100s of txt files. (Folder is Data_Sets_30) I want to open txt files one by one and get values and close the file and open next txt file get values and close the file and continue like that. I started to code … |
| | trying to figure out how to work out cin.ignore(100,'\n'); [code] cin>>idnum; while(!cin.eof()) { cin>>code; if(code == 'm' || code == 'M') { } if(code == 'h' || code == 'H') { cin>>hours; if(hours<=forty) { } if (hours > forty) { } } if (code == 'C' || code=='c') { } … |
| | So we were offered a job yesterday, which involved developing a mobile app targeting multiple platforms. They need the code to be as cross-platform as possible, so I think that C++ is the way to go as far as the infrastructure is concerned, and then we write wrappers in other …  |
| | i need it can some one help me out with it quest -- write a program in c to input any 10 numbers and print how many are even and odd waiting for responce |
| | #include<iostream> using namespace std; class polynomial { private: struct p { int degree; float coefficient; p *link; }*head; public: polynomial() { head=NULL; } void getdegree(); void getpolynomial(int d); void display(); void addition(polynomial p1,polynomial p2); }; void polynomial::getdegree() { int degree1; cout<<"\n Enter the highest degree of your polynomial:"; cin>>degree1; getpolynomial(degree1); … |
| | [CODE] void findFacesInMesh() { multimap<indexPair, int> mapface; multimap<indexPair, int> ::iterator it, it2,it3; pair<multimap<indexPair, int> ::iterator,multimap<indexPair, int> ::iterator> rangeit; int ip1, ip2; for(int k=0; k!=cells.size(); k++) { for(int i=0; i< ( cells[k].getNbPoints() ); i++) { if(i== (cells[k].getNbPoints()-1) ){ ip1=cells[k].getListPointsIndex(i) ; ip2=cells[k].getListPointsIndex(0);} else {ip1=cells[k].getListPointsIndex(i); ip2=cells[k].getListPointsIndex(i+1); } mapface.insert( multimap<indexPair, int> ::value_type( indexPair(ip1,ip2), k) … |
| | Hey, so I need to calculate and display the mode (most frequently occuring number) from a vector of ints. I already have the vector, and it can have any number of elements in it. So now i need to figure out a way to loop through my vector to figure … |
 | I'm trying to understand how one might go about building a program with a spreadsheet widget and being able to save the data in that spreadsheet? (Just Conceptually). The basic aim here is to input data on a regular basis using a C++ GUI of some kind and having that … |
| | Hello everyone, I have a std::map that includes individual ID and a struct that contains father and mother information, read from a file "ped.txt". This file has the format: ID - FATHER - MOTHER. Some fathers or mothers don't have IDs as individuals. The code bellow is an example to … |
| | hey. i would really appreciate some help on an assignment i've been struggling with. i am supposed to: Write a calculator program. Each time the program starts, reset the current value to zero. The user will then enter an arithmetic operator (either +, -, * or /) and then a … |
| | Hello all, I have put together an inventory program and having problems getting it to compile and run. I am at my wits end, with it. I'm not sure what it is that I'm missing. Any help would be greatly appreciated. Thanks in advance. [CODE] #include <iostream> #include <string> #include … |
| | Hello i want to get my computer time using c++ i googled, but i couldnt find anything that suits me... Time code should be able to use this function: if(hours == 10) { do something... } Can you help me? Thank you.  |
| | Hi Guys, What is the scope of the exception variables when I catch them by reference. [CODE] try{ throw AnExceptionObect("Exception message"); } catch(AnExceptionObect &exp){ logger << exp.what(); //logger is a dummy object throw; //what will happend now? is it going to be throwen by value? and what if I catch … |
| | OK, so as C++ is new to me I am confused. Generally I would pass an object using the "ref" keyword and I'd have no issues retaining the information that was changed in my object when I got back to the main. Well C++ is different. I have a class … |
 | I know C++ well and have written some programs in it but when I look at a program's code,I can't understand it.I wanna know is there a place where I can learn to write real world programs?Sth like a C++ certification? thanks |
| | hi everyoen i've a matrix array with some value, i want to shaw each of them in matrix type in my form, how can i do it? can i use DataGrid view for this? and if yes ... what is method.. |
| | Hi, I just started a C++ class and I'm already having troubles with some parts. The instructions are as follows: "Create a C++ console applications to compile the following statistics on a list of integers: • minimum value; • maximum value; • median value; • arithmetic mean; • variance (population …  |
| | This is a problem in a programming contest but I am stuck at it for the past two days Here is a link to the problem : [URL="http://www.techgig.com/codecontest_detail.php?type=advanced"]http://www.techgig.com/codecontest_detail.php?type=advanced[/URL] [CODE]void DrowningVillage(int gridSize,int villageHeights[][10],int origin[]) { int i=0,j,k=0,x=origin[1],y=origin[0],z=0,output1[100],Heights[10][10]; for(i=0;i<gridSize+2;i++) for(j=0;j<gridSize+2;j++) Heights[i][j]=1000; //For removing garbage values and for later comparisons for(i=0;i<gridSize;i++) for(j=0;j<gridSize;j++) Heights[i+1][j+1]=villageHeights[i][j]; … |
| | I have created a program that reads data from a file and stores it into a vector. The data looks something like the following: 48.698635 -0.000000 0.000019 1.000000 -0.004386 0.002192 // Step 1 48.583797 0.114838 0.100000 1.099997 -0.005061 0.001945 //Step 2 48.457909 0.125888 0.100000 1.199994 -0.005854 0.001883 //Step 3 ect... …  |
| | Hello, I have a very weird problem. I have been using ReadFile() for reading data from a device connected to the PC over USB. As the data to be read is received in chunks of 64 bytes, always, ReadFile() is called with 64 bytes to read. However, when i have …  |
| | How do I invoke the int operator < instead of the int* operator < ? [CODE] vector<int*> pVec; std::sort(pVec.begin(),pVec.end(), /*????*/); [/CODE] |
 | hi, i have this code: [CODE]#include <iostream> #include <fstream> #include<cstdio> #include<cstdlib> using namespace std; int main (char argc) { for(;;) { fstream myfile; myfile.open("example.txt"); cout << "1: Write" << endl; cout << "2: Read" << endl; int n1; cin >> n1; if(n1 == 1) { string n2; getline(cin,n2); myfile << … |
| | [CODE] class cellPair { public: vector<int> pair; int size; cellPair(const int& a) { pair.push_back(a); size=static_cast<int>( pair.size() ); } }; int main() { map<int, cellPair> aMap; aMap[1]=cellPair(3); aMap[1]=cellPair(2); } I think the aMap.second.size should ==2, but it still have 1 value, the second value did not push back to the pair. … |
| | Could anyone tell me the different between this two? I try to learn the C++ and i'm a newbie on it? Any recommended books or website to learn C++? Thanks in advance... |
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