51,593 Topics
 | |
| | Hi there, I'am asked for a HW write a code: * read some data of unknown number of students with their grades of 4 courses from a file * calculate the gpa, honor/warning status, and course average for each course, * write them into an output file (for testing I … |
| | Hi Guys, Can you please enlighten me, why the following output is this way? I thought A class size is the summation of the byte size of its member variables. My machine is a 64 bit machine. [CODE] #include <iostream> using namespace std; class A{ public: char y; int x; …  |
| | So it's this program which isn't behaving as it should. these are the classes I'm haing problems with: [code]#ifndef _CMENU_H_ #define _CMENU_H_ #include "Vec2.h" #include "Background.h" #include "Sprite.h" #include "BackBuffer.h" class Button { public: enum ButtonState { NORMAL, //when cursor is not near the button ANIMATED //mouseover event }; Button(const …  |
| | Hi friends, I have a map containing an int as key and a struct as second value, read from file. I need to update the second column with value obtained by the last value (bigger one) + 1. A kind of sequential code ... I tried to use the max_element … |
| | Hello. I have a problem writing to a file using for loop. here is the code: [CODE=cpp] /* the code should save numbers in a file something like this 1 5 2 8 3 7 4 6 */ //instead it gives just the last numbers it catches /* 4 6 … |
| | HI all, I am not c++ expert. Just a beginner. I have few requirements to design the pattern. Simple requirement is 1) i have a table in sqlite say T1 with ( name, version ) 2) I daemon which has is watching specific directory with inotification for the event IN_CLOSE_WRITE. … |
| | Hi All, In my application i am using a document to display data present in the database. First I try to run a query in the database and when i try to display the contents of the result it is failing to display the contents. But when I try to … |
| | I am currently going through a c++ book trying to do the problems at the end of the chapters. They dont provide solutions so im kind of stuck. My problem is: Write a program that uses a loop to display the characters for each ASCII code 32 through 127. Display … |
| | I am working on an assignment and I am suppose to use vectors to find the sum and winner but I do not understand c++ so this is confusing. The program runs but it is giving me the wrong winner, it displays the winner as who ever is entered first. … |
| | I have this assignment due and its a bit tricky, i was wondering how is it possible to incoporate both C-string and a [I]string[/I] object at the same time. Any help would be very very appreciated. thank you all in advance. Here is the actual problem from the book. [B]Write …  |
| | I'm wondering how to remove the stuff at the end of the console, where it says the execution time, press any key to continue, and what the process returned. I am using Codeblocks. As well, I am wondering when I type in a letter, (for example, the letter h), it …  |
| | Hey! I sorta, kinda want to make a REALLY simple OS that would be made in c/c++ (c++ hopefully). I realize that it would take a lot of effort, and I would need a lot of time. But I am willing to put forth the required effort and time, so, …  |
| | I'm new to programming and we have a project in class asking us to have the user input a sentence then we need to find the character typed most in that sentence. I think I'm on the right track, but I'm getting a segmentation core dump while running the program. … |
| | I have a program where it reads 2 files, one of them containing a file with customer number (int), customer name (string) and balance (double). There are 7 lines, but my program would only read the first line 7 times. This program is confusing me as to why they won't … |
| | Hi everyone, I have a std::map of structures . I'm reading the data from a file named "auxIdSorted.txt" and I need to do a while() using the variable auxID. The idea is read the map many times until all values of auxID become different of zero (while(auxID == 0). I … |
| | Hi masters! I have a problem with my while loop. I realised that my code does not work the way I want. It has to check if sum of def, mid and att variables is different from 10 or if style variable is different from multiple strings. So if any … |
 | Hello everybody, First off I know I should invest in some good c++ books...well technically alot of books for alot of different languages. However this month I am dabbling in c++ again. I am currently working in Visual C++ and trying to make a "keybind" for my program, so that … |
| | i am looking forward to making a game with c/c++ language. I need to know how to set up the scripture for the game, so if anyone has a clue how to set up a c/c++ scripture code then please reaply. thank you, ~~tehnoobshow |
| | Hello, I'm attempting to write a function that accepts a vector "list" and it's "size" as arguments and using an iterator, step through the list to find the one with the highest value. For instance, here is the non-iterator function: [code] int winnerIndex(vector<int> list, int size) { int votes = … |
| | Hi, I assigned the name of the file to string vector. I mean when I print the vector, it seems like cout<< files[0]; It prints file.txt and I want to open the file by using vector. I tried ifstream file ("files[0]"); and ifstream file (files[0]); but they did not work. … |
 | [CODE] sqlCmd = new SqlCommand(); sqlCmd.Connection = sqlCon; sqlCmd.CommandText = "update trainn set Adultno=Adultno-1 where ID=@pram1 and adult=@pram2 and Adultno>0"; sqlCmd.Parameters.AddWithValue("@pram1", textBox3.Text); sqlCmd.ExecuteNonQuery(); sqlCon.Close();[/CODE] The code is working properly when there is an update,but when it comes to more than one I don't know what to do? The following code … |
| | Hey yall. Trying to teach myself C++ using the book "Programming and Problem Solving With C++" (5th ed.) by: Nell Dale and Chip Weems... and it's no cake walk. I have a new found respect for programmers and programming in general. Anyway, if any of yall can help me figure …  |
 | I'm using eclipse C++ helios and mingw compiler... I created a hello world project without modify the original code.. It compile successfully but when i click run, it show terminated test.exe I'm new to use eclipse IDE, so hope to get some helps here.. thanks |
| | Hi all, I am working on an application in which a call is made to a DLL. From that dll a dialog has to be displayed. While doing so I was not able to see the dialog. Dialog is not getting displayed. When i checked the code in debug that … |
| | 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 am currently working on a game that takes place in the console. I need to know how to combine [CODE]Console.WriteLine()[/CODE] and [CODE]Console.ReadLine()[/CODE] into 1 line so that the blinking underscore appears on the same line. Is there any way to do this? Any help is appreciated. |
 | 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... …  |
The End.