51,593 Topics
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| | I have been working on this code for a while and for some reason I can't figure out why it won't compile I get a lot of errors. [code] #include "rational.h" Rational::Rational () { _p = 0; _q = 1; } Rational::Rational (long P, long Q ) { if ( … |
| | I have to write a program that that reads an array of integer numbers, stores them in array, sort the numbers in ascending order, and print the sorted array: using the buble sort technique. Unfortunately I can't seem to get it to work at all, and I know <stdio.h> is …  |
| | i don't know how use to a timer. I'm supposed to do is After the Roll button is pressed, a timer will be enabled to generate random die rolls every 1/10 of a second... [CODE] public partial class Form1 : Form { Random m_rnd = new Random(); List<int> diceResults = … |
| | please help me.. contribute some codes for indegree and outdegree .. i need it badly  |
| | So, as you can see... [code] #include <iostream> #include <string> using namespace std; int main() { char comma = ','; string str1 = "hello,friend"; string str2 = str1.substr(str1.find(comma)+1, str1.length()); //i guess this line... cout << str2 << endl; system("pause"); return 0; } [/code] What is being output is str2, and …  |
| | I want to write a program that determines the bill for car parking. I asked my friend to put together a description of what I want to do. Can someone look at this and give me a good code to do this? This program requires you to input information about …  |
 | What does it mean if my opengl objects are opaque from one side and translucent from another? |
| | Ok the thing I searched into google brought up a ton of nonsense. I want to use variables from a function in main and (more important) variables from main in a function. I am already using file I/o as a loophole but I want an easier way. PS How do … |
| | here is the question, what does str(X) become [CODE]#define str_(X) #X #define str(X) str_(X)[/CODE] when X is a string? is it ""string"" or "\"string\""? |
 | Hi everybody.. I have a homework on 2-Dimentional arrays, I have to creat a class and pass the parameters int it, i have to overload operators( +, -, *, << ) how do I Add the matrices?? Subtract?? and Multiply them using operator?? what should I pass and what should … |
| | Hello, I wrote a little program (Create a vector and give it back via pointer.) for a better understanding of pointers. First it works but when I would like get access to the vector alloacated with "new", problems occur. For example saving a element is not possible. [ICODE] #include <iostream> …  |
| | Hi, I have to write a program which makes changes and writes to a different text file. The point at which I am stuck is that I am unable to add the value 10 to ASCII value of each of the first 6 characters in the file. Can someone tell … |
| | Hello, I am so frustrated as I search the internet and cannot find solution for what I want to do... I want my C or C++ code be able to create a file in a directory under "C:\Program Files", for example "C:\Program Files\abc\xyz.txt". This usually triggers a security confirmation like … |
| | Hi guys, how are you all?? I want your help in writing and auto run code. I mean, a code in c++ that auto runs my c++ based applications so that when ever the pc starts, my programs start as well. How can i build it?? I have been programming … |
| | I was curious as to why the C++ standards board/the guy who made C++ decided to make all non default constructors non explicit? Stroustrup said that with C you shoot yourself in the foot, but with C++ you blow your foot off... Why didn't they make all non default constructors …  |
| | Hi guys! I want to start learning Objective-C and Id like to use c++ streams, problem is that it is causing error on this hello world example: [CODE] #import <iostream> #import <windows.h> int main( int argc, const char *argv[] ) { std::cout<<"Hello World"<<std::endl; Sleep(5000); return 0; } [/CODE] and these … |
 | can any 1 tel me the site , from where i can install this? recently some thing went wrong with my computer and i lost my evry thng... :(  |
| | I read that you can use a while loop to read the input from a text file and create a doubly linked list? How do I do that? I would appreciate if someone could show me. Thank you! |
| | In my math programming class I have an assignment to find the slope intercept formula (y2 - y1) / (x2 - x1) which is the m of the formula y = mx + b. I have to find 2 slope intercept equations and make an if-statement or multiple if-statements to … |
| | Okey i know that im going to start hate with this thread, but which one should i choose to learn looking from complexity view? Which api is more "easy" or user-frendly to learn? And why so? I wana know what you think. |
| | I do an exercise and i wrote this code to test templates [CODE]#include <iostream> #include "Date.h" #include "Time.h" using namespace std; template <typename T> bool compare(T first,T second){ if (first==second) return true; else return false; } template <class T,class X> bool compare(T first,X second){ if (first==second) return true; else return … |
| | [CODE]#include<stdio.h> int main() { int n,i,c=0; printf("\nEnter a no:"); scanf("%d",&n); for(i=1;i<n;i++) { if(n%i==0) { c=c+i; } } if(n==c) printf("\nPerfect no."); else printf("\nNot a perfect no."); }[/CODE] |
| | I need to create a basic program for work that utilizes the snmpget command. It needs to be usable in both windows and solaris as our clients use both. What's the best snmp library to use? I tried to download a number of them but I can't even get the … |
| | help guys, this code tells me that the sleep identifier is not found. has anyone got an idea on how to resolve this? |
 | in this program i'm writing, i seem to keep getting rounded down values. At first i though it was because i was declaring my return variable as an integer so i made sure i wasnt doing that and changed all number variables in the class to doubles to ensure i … |
| | am writing a program that will count the votes for those whom are agree and desagreed, so i would have Yes and no, now i have to have a file in wordpad, in other to import the information that was saved, to make the program to run, but i have … |
| | This is code for the algebraic slope formula (y2 - y1) / (x2 - x1). I need help. My error is: Uninitialized variable formula2 is being used without being initialized. Can anyone help me??? [CODE]#include <iostream> #include <string> #include <cmath> #include <algorithm> using namespace std; int main() { int formula1[2]; … |
| | Hi, This is my first post here at DaniWeb. I've been using it as a resource through out my assignments. I am truly eager to learn C++, but I've gotten stuck. All I am trying to do is average an array of numbers, but I haven't been able to even … |
 | hello friends, I am doing a bank management system project where I have to conect a database done in MS Access(.mdb extension) to the C++ code...I ve never learnt much about databases and this is the first time I m using Access...so I d be grateful if anyone could explain …  |
| | Hi guys, Lets say I create a class pointer in my program, do I need to delete the pointer I created before I close the program? Or will the pointer be deleted automatically whenever I exit the program? Will it cause the PC memory to be locked up if I … |
| | [CODE]#include "stdafx.h" #include <iostream> using namespace std; int _tmain(int argc, _TCHAR* argv[]) { char ch; do{ cout<<"press Q or q to quit,press any key to continue : "; cin.get(ch); cin.ignore(); if(ch!='Q'&&ch!='q') cout<<" you want to continue?\n"; else cout<<"you press q to quit "; }while(ch!='Q'&&ch!='q'); ; system("pause>NULL"); return 0; }[/CODE] my … |
| | Actually i am doing project in MFC. There i need to get the menu string in the right click context menu .please help me.. I am waiting .. thank you. |
| | I am extremely confused about libraries and have been having trouble understanding them with google. Basically I want to create a library so that I can use a bunch of functions from another file without all of the libraries' contents being seen. EG: library code: [CODE]class test { private: int … |
| | i made a header file with my function declarations and the cpp file with the definitions. While making the definitions in the .cpp file i included the header and from the highlighted text the definitions seemed to match declarations in the header. In the header the the declarations were able … |
| | [url]https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B3GcG6SeWKK_YzE1NDNmY2MtNTY0Ny00NTVhLTg1M2EtNDc5YzRmOGEzMjA0&hl=en_US[/url] I am completely stuck on this assignment I'm not sure what I should be getting. Can anybody take a look at my code and please help me. I need to complete this assignment asap. thanks Direction: Design, implement, and test a class that represents a phone number. The number … |
| | I know how to use the compare functions to check if a string is exactly the same as another but I wasn't sure if there is an easy way to go about checking if a string contains any sequence of A through F. Can I add up the memory values … |
| | ok. so i'm having trouble with the Windows API. i'm just learing how to use it, so i don't know much about it. anyways, i just wanted to create a window and have it displayed then catch the exit message and close, but VC Compiler is throwing errors. 1>c:\users\furrix\documents\visual studio … |
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| | Okay so someone may have already posted something like this but my assignment is due in like 4 hours and don't have time. So here is the problem and my code. My problem that I am having is that it only works for single words. Not whole sentences. I need … |
| | Is there a way to make a class visible only from within another class. i.e: [CODE]class myclass { private: class anotherclass { //stuff that only can be used from within a myclass function void dosomething(); float dosomethingelse(); }*anotherclasses; int numanotherclasses; public: int createanotherclass();//creates anotherclass object, puts it in the array … |
| | I have a quick question, I have to read in data from a file that has names and grades in it, I must take the names and store them in a string array and the grades and store them in a 2-d array. Any pointers on how to determine what … |
| | I am working on creating a linked list to connect the previous value number (or string) to another value I asked this question before I am just guessing I did it completely wrong since no one responded. So what would be the best way to start the function. I need … |
| | I have a program that relies on file timestamps that works fine in XP but fails in Windows 7. I ran the following test in Windows 7: Create go.bat to look at all 3 file timestamps: [CODE]@echo off dir /tc test* | find "test" dir /tw test* | find "test" … |
| | Hello again! I was given an assignment the other day in C++ and I was suppose to use the counter and add a sentinel so the program knew when to stop. Instructors directions: "The file for this assignment reads a sequence of positive integers from a file (2 3 5 … |
| | C/C++ have Datagridview-Listview-Calend and all those controls? i think c/c++ have only simple controls like msgbox/textbox/&button i have spend lot of hours to find something for win32 but nothing... exist smthing or i must draw byself :-s thats crazy...  |
| | [CODE]//I make program of infix to post fix xpression plz tell me waht wrong with my code //some it true result for arthematic opertaors b,w two oprend but with more then it does //not provide valid output plxxxxxxxxxxxx help me #include<iostream.h> #include<conio.h> #include<stdlib.h> #include<string.h> int presidence( ); void infixToPostfix(char *); … |
| | Hi, you guys. I'm making a obfuscator, and I need to know how to get all variables, classes, functions, etc, from a .NET program. I know how to get assembly info, which is quite easy. [CODE]using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using …  |
 | Ok, I have been trying to work this thing for a week. It is a program that is supposed to read from 2 files (.dat) and write to a third file (.dat) then update one of the first files. i.e. read oldmast.dat read trans.dat compare data write data and changes … |
| | [CODE]#include<iostream> #include<cmath> using namespace std; void getChoice(int& choice); void getInput1(double& foot, double& inche); void getInput2(double& meter, double& cm); void convert1(double foot, double inche, double& meter, double& cm); void convert2(double& foot, double& inche, double meter, double cm); void showResult1(double foot, double inche, double meter, double cm); void showResult2(double foot, double inche, … |
| | C++Syntax[CODE]#include "stdafx.h" #include<iostream> #include<cstdlib> #include<ctime> using namespace std; int main() { srand(time(0)); int arr[10]={0}; for(int i=0;i<10;i++) { arr[i]=rand()%50+1;} for(int i=0;i<10;i++){ cout<<arr[i]<<endl; } return 0; }[/CODE] I want to use the * to display the output, what I should improve? |
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