51,593 Topics
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| | Hello all, I am trying to figure out how to create new class objects when the user is asked if he/she would like to. What I have is a program we have to write that takes a certain number of students and keeps track of their name, assignments, and the … |
| | Complete TRY THIS Exercise 1, and then modify the IPO chart information and C++ instructions so that the commission rate will always be 10%. How is commission rate set to 10% always? <writing instruction> IPO Chart Inforomation C++ Instructions Input sale1 double sale1 = 0.0; sale2 double sale2 = 0.0; … |
| | why do my programs just flash off the screen when i try to execute them? i am new to programming, don't forget! |
| | class MapClass holds copies of class DataStruct so that instances of class Action only have to store the key value associated with the DataStruct: [CODE]struct DataStruct { friend bool operator< (DataStruct const &lhs, DataStruct const &rhs) { if (lhs.xData < rhs.xData) return true; else if (lhs.xData > rhs.xData) return false; … |
| | [CODE] #include <iostream.h> main(){ int balance; int payment; int payment_num = 1; int months = 0; float interest; cout << "Please input a value for the balance" << endl; cin >> balance; cout << "Please input a value for the payment" << endl; cin >> payment; while (balance > 0) …  |
| | Hello, I've added TXT file to my resource, but now I need to know how to access data in it? can I use iostream to read data? I have this: resource.rc [code]LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL IDR_0_1 0 "..\\..\\..\\..\\..\\Desktop\\test.txt"[/code] resource.h [code]#define IDR_0_1 119[/code] main.cpp [code]HRSRC hRes = FindResource(0, MAKEINTRESOURCE(IDR_0_1), "0"); HGLOBAL hData …  |
| | [CODE] #include <iostream.h> #include <stdlib.h> template < class ItemType > class stack { private : int top; int maxStk; ItemType *items; public : stack(); stack(int max); int isEmpty(); int isFull(); void push(ItemType newItm); int Pop(ItemType &Itm); }; template <class ItemType> stack <ItemType>::stack(){ top=-1; maxStk=500; items=new ItemType[500]; } template <class ItemType> … |
| | Hey guys. I just learn about magic numbers today. I am trying to make a program that uses fstream along with magic numbers to tell what a file is. Example the magic numbers for jpg are ff d8 ff e0. How do i check a file to see if its …  |
| | [COLOR="Green"]Hi all Pls tell me how i can read a data from EXCEL file and copy it to a text file using c++ program.I dont want to do it as manually .(Its for an extended application for software).I want to read the data from perticular cell to the end of …  |
| | [code] template<typename U, typename T, typename binary_functor> struct template_param_swap { binary_functor<U, T> func1; #1 binary_functor<T, U> fun2; #2 }; [/code] CH3 of modern c++ design may solve this, but I am not a template wizard and don't have the ability to make it yet. template template parameter could make #1 … |
| | I have this assignment to do. Its been about a year since I messed with c++ and I've been refreshing my brain on the subject. The assignment is this : Your assignment is to write a program for a computer dating service. Each client gives you his or her name, … |
| | Hey i am a beginner in programming I typed the following program on my own But there are a lot of errors it it Please help me find them [CODE] #include<IOSTREAM.h> main() { int a,b,c,x; cout<<"Enter three values - \nA,B,c."; cout<<"A-"; cin>>a; cout<<"B-"; cin>>b; cout<<"c-"; cin>>c; if (a>b) x=1 else … |
| | I'm not sure if my title makes sense, but I have an assignment and need some guidance on how to approach this. It's an Accounts Receivable program for ABC Hardware Company. I have a Master file with cust numbers, cust name and balance due. I also have a Transaction file … |
| | convertHex changes all occurrences of %XX (XX are exactly two hexadecimal digits) to ascii characters. Returns the number of replacements made. Here are the rules: Except when defining your character arrays, you must use pointer notation for all c-string manipulation--no []'s allowed. You may use any function from the cctype … |
| | Hello everyone. I am trying to pull data from a file and show it on the screen. There is a condition in the file that says if it is a "payment" or "order". A "P" and an "O" in the first column. My output becomes an infinite loop. I have … |
| | I was using getline() function and it was getting skipped. I searched through the forum and found the tutorial on how to flush the input stream but there is one thing that is still unclear to me : getline() uses newline character as a delimiter. So when a '\n' is … |
| | How would i make my program a .exe so people can run it, i made a simple calculator and i want to share it with some people so they can test it out.  |
| | For my intro to c++ class I have to create a complete program from broken algorithms The questions are (a) Print a random number between -1 and -9 to the output screen: (b) Print (to the output screen) the sum of the square roots of the numbers 1, 2, 3 … |
| | Ok, so I'm new to programming and I'm making console programs right now. I tried making a program to draw a rectangle in a cli program. I have some logical errors in the program that prevent it from working. I'm new to C++ so go easy on me. :P [CODE]/*Program … |
 | Hello, I am using a singleton pattern, which works fine. But when I decided to have a singleton of a nested class that is privately declared. [CODE]class A : public CSingletonTmpl<A> { class B : public CSingletonTmpl<B> { }; }; A* CSingletonTmpl<A>::s_Singleton = NULL; A::B* CSingletonTmpl<A::B>::s_Singleton = NULL; [/CODE] The … |
| | hello. am a new student to programming! am doing c in my computer science class at university, as dev cpp as the compiler; - but am disappointed each time I try to run a program. the program just flashes off the screen! am using windows 7 professional s a platform. … |
| | Okay, so almost the exact same code works in one of my c++/cli projects, but not the other. Both have the variables set as public, so they should be free to change. But only the first one does, and the second one does nothing. Here's the button click code for … |
| | unfortunately following code returns zero as output [CODE]#include<iostream> #define MAX 100 using namespace std; int graph[MAX][MAX]; int queue[MAX]; int head,tail; int parent[MAX]; int V,E; int s,t,fTotal; int F[MAX][MAX]; //breadth First search bool reachable(int s,int t){ bool found=false; head=tail=0; int vq; memset(parent,255,sizeof(parent)); queue[tail++]=s; parent[s]=s; while(head< tail && ! found){ vq=queue[head++]; for(int … |
| | For what I know, typeid(type) would return a type_info object, typeid(type).name() would print the name of the type, the names are depend on compilers. I would like to build a table by std::map<typeid(type).name(), std::function>. My questions : (1) : For what I know, the names of typeid(type).name() are not always … |
| | I want to parse command line arguments. Say someone gives me ./progname param2 [-price=50] [-size=10] [-weight=16] [-height=7] Square bracketed items are optional. Either none or exactly two of -price, -size, -weight, and -height can be specified. If none of them are specified, it should be taking default values for price … |
| | I have created a .NET windows based application in c#. Find the attached screenshot of my application. Java web service is already created and maintained. Now I want to send the values from windows application grid view to java web service. Is this possible? If so how? Am newbie to … |
| | Hey guys, theres a problem with the loop inside the yesno function here.. it kinda of hmm.. keeps the first number i enter and gives me the factorial of that number even if i enter another number the second time.. also my no option still gives me the loop even … |
| | Hello there! Im making a huffman tree and im having troubles with the pointers. For somereason its not giving the correct output. The problem is where the l2 nodes are pointing. [CODE]#include <iostream> /* A=7 B=2 C=2 D=3 E=11 F=2 G=2 H=6 I=6 J=1 K=1 L=4 M=3 N=7 O=9 P=2 … |
| | How does the functions for creating nodes can be used to create a linear linked list with n nodes? The linear linked list that will be created will be assigned values from 1 to n, right? The newly created linear linked list is returned by the function create linear() below. … |
| | So yeah I'm a fairly new coder but I'm trying to learn to do some various things. I can't find any straight forward answers to this anywhere else on the internet but I was wondering if my idea was possible before I spend time on it, and if possible could … |
| | #include <iostream> #include <windows.h> #include "g.h" typedef unsigned long (*AsmFunc)(AS_INBUF *, AS_OUTBUF *, T_REG_INF *, T_MPCNT *, ICE_ID *); int main() { AsmFunc _AsmFunc; HINSTANCE hInstLibrary = LoadLibrary((LPCWSTR)L"C:\Documents and Settings\karthikdatt\Desktop"); if (hInstLibrary) { _AsmFunc = (AsmFunc)GetProcAddress(hInstLibrary, "Assembler"); if (_AsmFunc) { std::cout << "ASSEMBLER FUNCTION" << _AsmFunc(ptr1,ptr2,ptr3,ptr4,ptr5) << std::endl; } } … |
| | I am developing a Vis C++ 2010 Express Windows Forms application which handles some time/date scheduling, based on user input. So, to test the application, I ran my PC's date forward a couple of weeks. Edited a glitch in the mean time... Then, set the date back to current. Now, … |
| | Hi guys, what I'm trying to do is allow the user to add a new student record to the system. If the user inputs a student ID already existing in the system, it doesn't accept the ID, but if it's a new student ID, it asks the user if they … |
 | So going over the new DirectXMath and loving how it has better documentation then the old versions, but anyways. It makes a note on many of its targets need to have aligned memory blocks, but that throws me for a loop because I don't know of a way to declare … |
| | Since the data structure are something like [code] struct morph { size_t num; std::string name; //and so on } [/code] I have to find the different of the two sets with functor or some 3rd party where could I find something like this? Below is the implementation alter by me(refer …  |
| | Hello guys, I've tried searching the internet on how to cout a struct in an array via a binary search, but with no success. I've only learned how to do a linear search and I sort of understand how to do a binary search but: how do I cout the … |
| | AOA Dear fellows i have code in which i uses linked list.when i compile that program the compiled file run but not work. I write this code in Dev c++. [CODE] #include <iostream.h> #include <string.h> #include <stdlib.h> using namespace std; class Node { public: int value; string Name; Node * … |
| | I just made one, however after a short time or after a click, it just breaks and an image of the window appears within the window, and that image starts jumping around within the window, but the actual window stays where it is. I have no idea why this is … |
 | I need to know how to extract the data in a display list in opengl. I have a font and use it to create a display list to draw, but then I want to get the actual vertexes of it so I can use them for collision checking. How can … |
| | I'm trying to make my rectangles appear on screen, but it appears blank when I run the program. [CODE]#include <GL/glut.h> #include <stdlib.h> #include <math.h> using namespace std; struct GLPoint { GLint x; GLint y; }; void init(void) { glClearColor (1.0, 1.0, 1.0, 0.0); glShadeModel (GL_SMOOTH); } void display(void) { int … |
| | My program is compiling fine but my issue is with the output. The grades are not correct and the counters are not working either. If anyone can help that would be great. [CODE]//stud.cxx #include "stud.h" studType::studType(int idVal, float exam1Val, float exam2Val, float exam3Val) //********************************************* { id = idVal; exam1 = …  |
| | Hello everyone, I just made a .cpp file to modify a data file in .txt (not relevant actually) file. I basically want to apply what this program is doing to all the .txt files in a ./input folder , and I couldn't find anything relevant so far. The code is … |
| | Sorry for the newbie question, but I was just wondering if it is possible to program in C++ or some language other than Objective-C on iOS devices? If so, what tools could I use? Visual Studio? Thanks!! :) |
| | I am trying to delete the array element that matches with the user input. So I am trying to shift all the cells after the deleted one to the left 1 spot. I know it's still in the loop of the if statement(line 11 and 31) but I can't figure … |
| | I need some help my code repeats the add new employee and is not asking for index. What I was supposed to do. Write a function name hireOne whose parameters are the array of structs, and the size of the list; the function should prompt the user to input a … |
| | if we do not hav the value of n, then how we input the elements in array from user |
 | Hello there guys! :) I've been given a sample code for my upcoming assignment in Computer Graphics and, according to the guide available in the course's site, I've set up Visual Studio 2008. What we've been given is a solution with some sample code which we must use as a … |
| | i have 3 files one main.cpp, functions.cpp, and a header.h im using [CODE]#include<fstream>[/CODE] in the main.cpp and in the functions.cpp but im not sure where to define the ofstream datatype in, so that the main.cpp and the function.cpp share the same ofstream variable. where do i put this "ofstream outf;" … |
| | Card shuffling and dealing create a program to shuffle and deal a deck of cards,the program should consist of a clas card a class deck of cards and a driver program To deal a card, the driver just prints it out. The dealCard function does not print anything. this is … |
| | Good day all, I'm trying to create a template class just for learning purposes. And i keep coming up with two errors... Here's the script: HEADER FILE "lottoclass.h" [CODE] #ifndef LOTTOCLASS_H_INCLUDED #define LOTTOCLASS_H_INCLUDED using namespace std; template<typename T> class Lottery { public: Lottery(); ~Lottery(); T Resize(T* array, int i); void … |
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