49,757 Topics
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| | Please help me to make a sequencing program for my Operations Research subject. By this program, i basically need to sequence n jobs in an order. There are three column: jobs, A, B as shown below: Job A B 1 4 5 2 3 6 3 5 2 4 1 … |
| | I have a problem with a redefinition when open a form. From Form15 I open Form13 wich works great: [code] #include "Form13.h" Form13 ^form13 = gcnew Form13; form13->Show(); [/code] Now when I add the same code on Form21 I will have the compilererror below: Why does this happen ? The … |
| | I'm trying to read from a text file multiple times but I only seem to be able to read the data once. Any advice would be greatly appreciated. [code] string input; while (!ifile.eof()) { getline(ifile,input); cout << input << endl; } while (!ifile.eof()) { ifile.get(ch); cout << ch; } [/code] |
| | hello, im trying to make something using quotes in a string which is then used by system(d.c_string) heres the code: [code] #include <iostream.h> #include <string> using namespace std; int main() { string a,b,c,d; a="del C:\\users\\robocop\\desktop\\\""; cin >> b; c="\""; d=a+b+c; system(d.c_str()); } [/code] Lets say when running i type 'a …  |
| | Hi, how can i get windows font handles in my program ? thank you all , in advance.  |
 | Hey! :) I found the functions in the chilkat-library usefull, so i downloaded it. If you havn't figured it out yet, I use the programming language C++ and i use the visual studio express IDE. What I do, is: 1: Save the chilkat-folders at the HDD. 2: Open Project/solutions-settings and … |
| | Hi I have a some general questions, some are c others are c++ related. So I'll just post them here in the c++ forum. These question only relates to speed not so much design issues. So far most of my programming has just been about making it work. That is …  |
| | Hello I need an editor or IDE to edit source files over FTP. Sources and the development environment is on a Unix server and I need to edit these files. There's an editor or an IDE plugin to do this? Thanks in advance. |
| | I was wondering if anyone was familiar with reading data from a file into your program. I tried using the file stream the same way cout is used but it doesnt seem to work properly. Would the getline(); function work? If so, how would that be implemented? [CODE]#include <iostream> #include … |
| | I'm interested to lean C++, but I don't have any idea about which book is good for beginners any suggestion will be appreciated. Thanks in advance  |
| | How can i get the time from the system clock in nanoseconds?? im using c++ here.. thanx.. |
 | in my program [ICODE] class list /// list class { private: int *Data; int Size; num; public: list() // constructor { size = 1; num = 0; } void add(); // member function }; void list::add() /// { char choice; do { Data = new int[size]; cout<<" \n Enter item … |
| | i want to write a program that determine a student’s grade. It reads three test scores (between 0-100) and calls a function the calculate and return a student’s grade based on following rules: (a) If the average score is 90% and more, the grade is ‘A’ (b) If the average … |
| | "I want to write a program that determine a student’s grade. It reads three test scores (between 0-100) and calls a function the calculate and return a student’s grade based on following rules: (a) If the average score is 90% and more, the grade is ‘A’ (b) If the average …  |
| | Hey..i'm new here and i'm actually taking a course related to C++ Programming. My assignment is to create a simulation on an agenda.. the agenda is a daily agenda, it only works for one day (so you will not see what day it is, it's general) it stores info in … |
| | Hi, given a char(8bit's), I want to get the value of every 2bits, so that a char will contain 4 values. This is easily done with a shift left command (<<2). As far as I understand, char arrays are simply the different chars in consecutive order in the memory. so … |
 | I am using Visual Studio 2008, and i am working with a single document application, it is CView Based, and i want to know how i can in addition to the view, that i will be drawing on, how i can add controls, like CButton and CListBox. do i have … |
| | Hi, I'm learning c++ at the moment and the problem I have is probably very simple. I wrote some code to calculate prime factors of a given number. If I define variables as unsigned long, the code compiles and the program runs. If I define variables as double then compiler … |
| | What's wrong with this program?? [code=cplusplus] #include <stdio.h> int main void { int a,b,c,d; float avg; printf("Please insert score test 1: "); scanf("%d",&a); printf("Please insert score test 2: "); scanf("%d",&b); printf("Please insert score test 3: "); scanf("%d",&c); avg=(a+b+c)/3; } { if (avg>=90); printf("Your Grade is A"); else if (avg<90); if … |
| | hi ppl, im having a problem with this program. The thing is that i need to enter the license, age and level of education of an amount of ppl, but dont know how many. then i have to get the percentaje of runners and sellers, the average age, amount of …  |
| | hi, when I try string.size on accentuated words, the result is bigger than it was "supposed" to be, as accentuated characters count as 2 size units instead of one. how can I count them as one? cheers |
 | Hey guys, How would one create a vector of pointers to functions? I know from C to create an array of functions, but I'd like to learn how to do it with vectors as well. Here are my efforts so far: [code=cpp]#include <iostream> #include <valarray> #include <vector> #include <ctime> #include … |
| | Hi, I study C++ myself and can't solve a little problem. I created class konto (account) and it works fine. Now I want to create a class bank which contains several accounts and it should be possible to add a new account and to find a necessary account by number. …  |
| | hi again :) i was wondering how i would make a file automatically open with a program, eg: like after you install dev c++, .cpp files automatically open in the editor. how does the editor get the file's location? and how does it process it? |
 | In any payroll program, how does the program values (e.g employee id, hours worked,hourly rate) work with an .in file. Does the .in file have to be in a specific folder....I am using Bloodshed Dev C++. |
| | just one problem my program is about high school dance cost report its project 07 1 of 2 projects left in the class and im almost done with im only having one problem i been trying to fix this problem for a few hours with function, and anything that could …  |
| | I want to be able to activate an easter egg in this program, but passing and reading these arguments is making me pull my hair out. Any ideas? [CODE]#include <cstdlib> #include <iostream> using namespace std; //(cc) 2008 Nathan Barndt //Attribution-Share Alike 3.0 United States License void easteregg() { //easteregg code … |
| | does any one can recomend me resource to learn mfc , cause all the web site i been through is too hard for me,plz(>w<) |
| | good day! can anyone teach me how to access images and display these images using c++?because i have a project regarding accessing and viewing images in mobile phones...kindly help me...:sad: |
 | I would like to have a global way to do something like this [code] #ifdef GRAPHICS //do some stuff that relies on graphics libraries that may or may not be installed #endif [/code] The problem with defines is that they have to be defined in every file, or at least … |
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