49,757 Topics
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| | HI all could anyone please tell me where i can find some public domain source codes for Visual C++ 1.52, I am trying to teach myself programming as i dont have the patience for classrooms and i thought that some sample codes would give me some practice. I have already …  |
| | I have the following code This is the Point header file [code] #ifndef POINT_H #define POINT_H #include<string> using namespace std; //Class Point represents points in the Cartesian coordinate class Point{ protected: double xCoord, yCoord; //coordinates of the point string name; //name of the point public: Point(); //default constructor Point(double, double, …  |
| | I have an assignment dealing with algorithms and Big O notation. I am a little confusded about this notation stuff. Here are a few of the questions on the assignment: What is the O-notation for the following code? [code]cin >> N; for (int count = 1; count <= N; count++) …  |
| | I have problems with this small class program, have two classes...registration and course. I am writing a small function for registration adds the credits. I made an array called ptr of type course in the registration class. Now when i try to access credit a private member in the class … |
| | I am trying to read in information from an external file using ifstream. I use fin >> to input the data usually. Now I have to input a full name. Can anyone tell me what I use to do this? do I use a string type variable and then just … |
| | I am looking to be able to pull up files from ms access using C++. this is for a college senior project. We currently have a rfid reader that will read a tag and display its unique tag number using C++ we now want to link each tag to a …  |
| | I have a header and cpp file.I'm trying to learn OOP so I did a small program that handles classes.In the header I have declared the class and in the main file I'm implementing the methods. m_prvi = first number m_drugi = second number m_rezultat = result So I call … |
| | Has anybody use the jwSMTP c++ email routines, or do you know of a better freeware email c++ app? |
| | Could you help me please: I'm writing printer driver, based on standart unidrv and i'd like to use another library in my driver. But while compiling the driver I receive following errors: d:\WINDDK\2600.1106\inc\crt\istream(564) : error C2220: warning treated as error - no object file generated d:\WINDDK\2600.1106\inc\crt\istream(564) : warning C4530: C++ … |
 | I am kind of confused about how DestroyWindow() works. According to the help files this function sends a WM_DESTROY message to the window it has just removed from the screen. In my [inlinecode]WindowProc[/inlinecode] I have something like the following: [CODE] case WM_CLOSE: { DestroyWindow(hwnd); return 0; } case WM_DESTROY: { … |
| | Iam confuse with cubic equation alghoritma and code. x^3 + ax^2 + bx + c =0 Please help me |
| | can you tell me ! What's the difference between MS-Dos program and Windows program ? Is an application in C++ MS-Dos-based application ? Thanks ! |
| | hallo all, i'm a new member. i need help in my program i want 2 know if there is a datatype called time. my program will deal with time as below 11:33:50,965 it will read 2 absolute times for 2 actions and then return the differnce. how can i do … |
| | I have an assignment which will pull data from Trans.data and Lawn.data. Can I not use fin to open both the files at once or do i need to setup another stream. Here is my code I am getting the Error message I have set if Trans.data fails to open. … |
| | Hullo, Does anyone have any tutorials about using the graphics library in turbo c. I need this fast. ThanQ  |
| | Hi there, I was wondering if anyone can help me out here...This is what I have so far: [code]#include<iostream.h> #include<conio.h> class Employee { private: int idNum; char name[20]; double rate; public: Employee(const int id); //The Constructor with Arguments Employee();//The Default Constructor void displayValues(); }; Employee::Employee(const int id) { idNum = … |
| | Hi, I'm trying to write a class that uses a vector, but I can't get the right syntax in the Staff constructor. Can anyone help? public: Staff(); Staff (???????????); private: vector<Employee> members; |
| | Hi everyone, I am a year 1 student who is having a course of data strcutures. My assignment 's deadlin is by tomorrow. the assignment is avl tree. I have completed the followings. [code]struct AVLnode_s { char element; int height; struct AVLnode *left; struct AVLnode *right; }; typedef struct AVLnode_s …  |
 | My code :[CODE]int _tmain(int argc, _TCHAR* argv[]) { HINTERNET hInternet; BOOL bResult; hInternet = InternetOpen( (LPCTSTR) "NoAgent", (DWORD) INTERNET_OPEN_TYPE_DIRECT, (LPCTSTR) NULL, (LPCTSTR) NULL, (DWORD) INTERNET_FLAG_ASYNC); if (hInternet == NULL) { DebugTest("hInternet == NULL"); } DebugTest("Internet handle created!"); bResult = InternetCloseHandle((HINTERNET) hInternet); if (bResult == NULL) { DebugTest("InternetCloseHandle((HINTERNET) hInternet) == NULL"); … |
| | Hey everyone, I' m currently having trouble getting the following code to work. What I'm trying to do is getting my program to do read from a text file which has the following information: 234323 c 343212 d 323432 a 763634 b The corresponding information shown above will correspond as … |
| | So I'm trying to learn how to use function pointers (ie to pass the address of a function to another function to execute it - like a call back). I have it working when I use it as follows: Classes.h: [code] #include <iostream> using namespace std; class Class1 { public: …  |
| | Hi, I am working on a project that I had to get 2 number from a user display them in 10base. Then convert them into 2 base and display them in multiple of 8. I did this part. The next part I am suppose to do is add and subtract … |
| | so i have this tic tac toe assignment in c++ and i need some help doing the moves part for both the computer and the player....i already got the board down with arrays and the specs for the functions needed are listed below...some help would be greatly appricaited and i … |
| | hey i jst need a lil help with dis... [code]void main() { for(int polygon = 0;polygon < 3;polygon++) { int i, j; const int max =5; int end; int sort; int ymin = 21; int start; int ypos; int vertices=0; if(polygon == 0) { float x0[] = {20, 40, 90, … |
| | Hi All, Following code gives me an error when I use text field in CSV file instead of float or integer fields. `matrix_points[cnt][4] = atoi(line);` May be the problem with above line. Please see the below code char matrix_points[6][8]; std::ifstream input_file("C:/NDA/NissanNewApplication/Dev/CommonErrorManager/Src/ErrorMessageList.csv"); int cnt(0); printf("initial valie of cnt = %d\n",cnt); char … |
| | Hi all, I am trying to share data between two simultaneously running programs. I am writing the output of one program to a file named xpos.out and reading the data in it from an other program which is running simultaneously. The value in xpos.out changes each time. So when i … |
| | Does anyone know where I can get technical information about developing HTTP applications in C++. I'm not talking about CGI, I mean the classes or functions that allow you to directly communicate on the web via HTTP without a web server. |
| | I don't know if I read the book right but my array is not working on my months .My instructions is this assignment uses an array of strings: write a C program that asks the user for the month, day, and year read in the month, day and year (as … |
| | Thanks to some people who has already given me some pointers and insights, I wrote down on paper the layout before I started putting them into code, which I eventuall did and they're in code now. I tried to run it and gave me a list of lots of errors. … |
| | I'm trying to do a program that takes two vectors and computes the alternating sum, appends the vectors, checks whether two vectors have the same elements in some order, ignoring multiplicities, and removes duplicates. Any help would be appreciated. [CODE] #include <iostream> #include <vector> using namespace std; /* Functions on … |
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